UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

_______________________

FORM 11-K

ANNUAL REPORT

PURSUANT TO SECTION 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

xANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the fiscal year ended December 31, 2009.

¨TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

 For the transition period from ___________ to ___________ .

Commission File Number 1-34020

A. Full title of the plan and address of the plan, if different from that of the issuer named below:

MICREL, INC. 401(k) PLAN

B. Name of issuer of the securities held pursuant to the plan and the address of its principle executive office:

MICREL, INCORPORATED

2180 Fortune Drive

San Jose, CA 95131

Micrel, Inc. 401(k) Plan

Table of Contents

Financial Statements and Schedule	Page(s)
Report of Independent Registered Public Accounting Firm	3
Statements of Net Assets Available for Benefits	4
Statement of Changes in Net Assets Available for Benefits	5
Notes to Financial Statements	6-14
Supplemental Schedule:  Schedule H, Line 4i–Schedule of Assets (Held at End of Year)	15
Signature	16
Exhibits:  Exhibit 23.1 - Consent of Independent Registered Public Accounting Firm	17

2

Report of Independent Registered Public Accounting Firm

To Participants and Administrator of the Micrel, Inc. 401(k) Plan:

We have audited the accompanying statements of net assets available for benefits of the Micrel, Inc. 401(k) Plan (the Plan) as of December 31, 2009 and 2008, and the related statement of changes in net assets available for benefits for the year ended December 31, 2009. These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2009 and 2008, and the changes in net assets available for benefits for the year ended December 31, 2009 in conformity with accounting principles generally accepted in the United States of America.

Our audits were performed for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedule, as listed in the accompanying table of contents, is presented for the purpose of additional analysis and is not a required part of the basic financials statements but is supplementary information required by the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. The supplemental schedule is the responsibility of the Plan’s management. The supplemental schedule has been subjected to the auditing procedures applied in the audits of the basic financial statements and, in our opinion, is fairly stated in all material respects in relation to the basic financial statements taken as a whole.

/s/ Burr Pilger Mayer, Inc.

Burr Pilger Mayer, Inc.

San Francisco, California

June 18, 2010

3

MICREL, INC. 401(k) PLAN
STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
December 31, 2009 and 2008
____________
	2009			2008
ASSETS
Investments, at fair value:
Cash	$	2,862		$	68,235
Registered investment companies		36,953,521			28,063,496
Money market funds		751,674			114
Employer common stock		460,159			419,557
Guaranteed investment contract		7,075,372			6,185,039
Participant loans		1,432,067			1,280,744
Total investments at fair value		46,675,655			36,017,185
Employee contributions receivable		82,087			6,417
Employer contributions receivable		218,000			587,000
Total receivables		300,087			593,417
Total assets		46,975,742			36,610,602
LIABILITIES
Accrued liabilities		205,693			66,586
Net assets at fair value		46,770,049			36,544,016
Adjustment from fair value to contract value for
fully benefit-responsive investment contracts		(27,506	)		485,029
Net assets available for benefits	$	46,742,543		$	37,029,045
The accompanying notes are an integral part of these financial statements.

4

MICREL, INC. 401(k) PLAN
STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
for the year ended December 31, 2009
____________
Additions to net assets attributed to:
Investment income:
Net increase in fair value of investments	$	8,623,598
Interest and dividend income		104,125
Total investment income		8,727,723
Contributions and rollovers:
Participants’ salary deferrals		3,714,226
Employer contribution		215,825
Participant rollovers		50,007
Total contributions and rollovers		3,980,058
Total additions to net assets		12,707,781
Deductions from net assets attributed to:
Benefits paid to participants		2,650,612
Corrective distributions		202,835
Administrative expenses		140,836
Total deductions from net assets		2,994,283
Net increase in net assets		9,713,498
Net assets available for benefits:
Beginning of year		37,029,045
End of year	$	46,742,543
The accompanying notes are an integral part of these financial statements.

5

MICREL, INC. 401(k) PLAN

Notes to Financial Statements

_________________________

1. Description of the Plan

The following description of the Micrel, Inc. 401(k) Plan (the Plan) provides only general information. Participants should refer to the Plan agreement and summary plan description for a more complete description of the Plan’s provisions.

General

The Plan, a defined contribution plan sponsored by Micrel, Inc. (the Company or Employer), intended to qualify under Section 401(a) and related provisions of the Internal Revenue Code, was established effective January 1, 1980. The Plan is designed to provide participants with a means to defer a portion of their compensation for retirement. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA).

Plan Administration

The Company is the administrator of the Plan and, as such, carries out the duties imposed by ERISA. The Company has delegated certain responsibilities for the operation and administration of the Plan. Custodianship of investment assets and execution of investment transactions is provided by The Charles Schwab Trust Company (Schwab). Recordkeeping services are provided by The Standard.

Certain administrative fees of the Plan, including audit fees, were paid directly by the Company for the year ended December 31, 2009.

Eligibility

All non-excluded employees, as defined by the Plan, become eligible to participate in the Plan on the first day of the month following their employment commencement date. Participants of the Plan who have more than six months of service, as defined, are eligible to receive discretionary contributions from the Company based on the provisions of the Plan. Participants should refer to the Plan document for further detail on the Plan’s eligibility provisions. Effective June 1, 2008, the Plan was amended to adopt automatic election of 3% for eligible participants. Eligible participants will automatically be enrolled into the Plan unless they elect to opt out by informing the Plan administrator.

Contributions

Annually, participants may elect to defer a portion of their pretax eligible compensation, as defined in the Plan, subject to certain IRS limitations. A participant may also contribute cash to the Plan in the form of a “rollover contribution” from another qualified employer-sponsored retirement plan. Employer contributions may be contributed at the discretion of the Company’s board of directors and are invested in a portfolio of investments as directed by the Company.

Participants direct the investment of their contributions into various investment options offered by the Plan. The Plan currently offers a guaranteed investment contract, money market funds, registered investment companies (i.e., mutual funds), and employer common stock as investment options for participants.

6

MICREL, INC. 401(k) PLAN

Notes to Financial Statements

_________________________

1. Description of the Plan, continued

Participant Accounts

Each participant’s account is credited with the participant’s contribution and earnings thereon and an allocation of (a) the Company’s contribution and earnings thereon, and charged with an allocation of administrative expenses, and (b) forfeitures of terminated participants’ non-vested accounts. Allocations are based on participant earnings or account balances, as defined. The benefit to which a participant is entitled is the benefit that can be provided from the participant’s vested account.

Vesting

Participants are immediately vested in their voluntary contributions plus actual earnings thereon. Vesting in the Company discretionary contributions portion of their accounts plus actual earnings thereon is based on years of continuous service as defined by the Plan. A participant is 100% vested after 6 years of credited service, vesting 20% per year after 2 years of credited service.

Payment of Benefits

Distributions and withdrawals are payable upon retirement, termination, financial hardship, disability, or death. If a participant’s account balance is equal to or less than $1,000, the balance is distributed immediately in a lump-sum cash payment unless a direct rollover into another qualified benefit plan is requested. If the account balance is over $1,000, the participant can consent to either a distribution paid in the form of a lump-sum cash payment, a direct rollover into another qualified plan or may postpone payment to a later date and remain in the Plan as described in the Plan documents.

Participant Loans

Participants may borrow from their accounts a minimum of $1,000 up to a maximum equal to the lesser of $50,000 or 50% of their vested account balance. Loan terms range from 1 to 5 yearsor up to 15 years for the purchase of a primary residence. The loans are secured by the remaining balance in the participant’s account and bear interest at rates that range from 5.25% to 10.25%, which are commensurate with local prevailing rates as determined by the Plan administrator. Principal and interest is paid ratably through monthly payroll deductions.

Forfeitures

Forfeitures shall be allocated to all participants eligible to share in the allocations in the same proportion that each participant’s compensation for the year bears to the compensation of all participants for such year. These accounts will be used to reduce future employer contributions and/or administrative expenses. At December 31, 2009 and 2008, there were $42,236 and $3,807 in forfeited nonvested accounts, respectively. There were $6,069 in forfeitures applied during the Plan year ended December 31, 2009 to reduce employer contributions.

Continued

7

MICREL, INC. 401(k) PLAN

Notes to Financial Statements

_________________________

2. Summary of Significant Accounting Policies

Basis of Accounting

The financial statements have been prepared on the accrual basis of accounting in accordance with accounting principles generally accepted in the United States of America and ERISA. Contributions from participants are recorded when withheld from the participant. Benefit payments are recorded when paid.

Investment Valuation and Income Recognition

The Plan’s investments are stated at fair value (see Notes 3 and 4). Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date.

Risks and Uncertainties

The Plan invests in various investment securities. Investment securities are exposed to various risks such as interest rate, market, and credit risks. Due to the level of risk associated with certain investment securities, it is at least reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect participants’ account balances and the amounts reported in the statement of net assets available for benefits. Investment fees, which may vary according to the individual funds selected, are paid out of the assets of the Plan. Participants should refer to the prospectuses of the individual investment funds for further details on individual investment fees.

Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the Plan administrator to make estimates and assumptions that affect certain reported amounts and disclosures. Accordingly, actual results may differ from those estimates.

Recent Accounting Pronouncements

In January 2010, the FASB issued Accounting Standards Update 2010-06 which expanded the required disclosures about fair value measurements. In particular, this guidance requires 1) separate disclosure of the amounts of significant transfers in and out of Level 1 and Level 2 fair value measurements along with the reasons for such transfers, 2) information about purchases, sales, issuances and settlements to be presented separately in the reconciliation for Level 3 fair value measurements, 3) fair value measurement disclosures for each class of assets and liabilities and, 4) disclosures about the valuation techniques and inputs used to measure fair value for both recurring and nonrecurring fair value measurements for fair value measurements that fall in either Level 2 or Level 3. This guidance is effective for annual reporting periods beginning after December 15, 2009 except for 2) above which is effective for fiscal years beginning after December 15, 2010. The Company is currently evaluating the impact that this guidance will have on the Plan’s financial statement disclosures.

Continued

8

MICREL, INC. 401(k) PLAN

Notes to Financial Statements

_________________________

3. Guaranteed Investment Contract

The Plan includes a fully benefit-responsive guaranteed investment contract with Metropolitan Life Insurance Company (MetLife), as an investment option to Plan participants. Contributions to MetLife under this contract are maintained in a general account. The account is credited with earnings on the underlying investments and charged for participant withdrawals and administrative expenses. Contract value represents contributions made under the contract, plus earnings, less participant withdrawals and administrative expenses. Participants may ordinarily direct the withdrawal or transfer of all, or a portion, of their investment at contract value. The fair value of this contract as of December 31, 2009 and 2008 was $7,075,372 and $6,185,039, respectively.

MetLife will guarantee principal and accrued interest, based on credited interest rates, for participant-initiated withdrawals as long as the contract remains active. Interest is credited to the contract at interest rates that reflect the performance of the underlying portfolio.

There are no reserves against contract value for credit risk of the contract issuer or otherwise. The average yield and crediting interest rates for the year ended December 31, 2009 were 11.21% and 3.42%, respectively. The average yield and crediting interest rates for the year ended December 31, 2008 were (3.82)% and 4.62%, respectively. The crediting interest rate is based on an agreed-upon formula with the issuer, but may not be less than 0% percent. Such interest rates are reviewed and reset, as applicable, on a quarterly basis. MetLife will reset the rate by amortizing the difference between the market value of the portfolio and the guaranteed value over the weighted average duration of the Fund’s investments. Participants will receive the principal and accrued earnings credited to their accounts on withdrawal for allowed events. These events include transfers to other Plan investment options, and payments because of retirement, termination of employment, disability, death and in-service withdrawals as permitted by the Plan.

As described in accounting standards providing guidance for Reporting of Fully Benefit-Responsive Investment Contracts Held by Certain Investment Companies, investment contracts held by a defined-contribution plan are required to be reported at fair value. However, contract value is the relevant measurement attribute for that portion of the net assets available for benefits of a defined contributions plan attributable to full benefit-responsive investment contracts because contact value is the amount participants would receive if they were to initiate permitted transactions under the terms of the Plan. As required by the accounting standards, the Statement of Net Assets Available for Benefits presents the fair value of the investment contracts as well as the adjustment of the fully benefit-responsive investment contracts from fair value to contract value. The Statement of changes in net assets available for benefits is prepared on a contract value basis.

Continued

9

MICREL, INC. 401(k) PLAN

Notes to Financial Statements

_________________________

4. Fair Value Measurements

Accounting Standards for fair value measurements establishes a framework for measuring fair value. That framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under these accounting standards are described below:

Level 1–Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Plan has the ability to access.

Level 2–Inputs to the valuation methodology include:

·   Quoted prices for similar assets or liabilities in active markets;

·   Quoted prices for identical or similar assets or liabilities in inactive markets;

·   Inputs other than quoted prices that are observable for the asset or liability;

·   Inputs that are derived principally from or corroborated by observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.

Level 3–Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

The asset or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.

Following is a description of the valuation methodologies used for assets measured at fair value. There have been no changes in the methodologies used at December 31, 2009 and 2008:

Employer common stock:  Valued at the closing price reported on the active market on which the individual securities are traded.

Registered investment companies:  Valued at the net asset value (NAV) of shares held by the plan at year end.

Money market funds:  Valued at quoted market prices in an exchange and active market, which represents the net asset values of shares held by the Plan at year end.

Participant loans:  Valued at amortized cost, which approximates fair value.

Guaranteed investment contract:  Valued at fair value by discounting the related cash flows based on current yields of similar instruments with comparable durations considering the credit worthiness of the issuer (see Note 3).

Continued

10

MICREL, INC. 401(k) PLAN

Notes to Financial Statements

_________________________

4. Fair Value Measurements, continued

The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Plan believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine fair value of certain financial instruments could result in a different fair value measurement at the reporting date.

The following table sets forth by level, within the fair value hierarchy, the Plan’s assets at fair value as of December 31, 2009 and 2008:

	Assets at Fair Value as of December 31, 2009
	Level 1		Level 2		Level 3		Total
Cash	$	2,862	$	-	$	-	$	2,862
Registered investment companies
Foreign Large Blend		5,543,697		-		-		5,543,697
Intermediate-Term Bond		6,033,074		-		-		6,033,074
Large Blend		5,877,129		-		-		5,877,129
Large Growth		3,510,911		-		-		3,510,911
Large Value		1,665,624		-		-		1,665,624
Mid-Cap Blend		5,777,191		-		-		5,777,191
Mid-Cap Growth		2,657,759		-		-		2,657,759
Mid-Cap Value		2,181,969		-		-		2,181,969
Moderate Allocation		493,161		-		-		493,161
Short-Term Bond		812,543		-		-		812,543
Small Blend		87,493		-		-		87,493
Small Growth		1,627,514		-		-		1,627,514
Small Value		685,456		-		-		685,456
		36,953,521		-		-		36,953,521
Money market funds		751,674		-		-		751,674
Employer common stock		460,159		-		-		460,159
Guaranteed investment contract
Stable Value Fund		-		7,075,372		-		7,075,372
Participant loans		-		-		1,432,067		1,432,067
Total assets at fair value	$	38,168,216	$	7,075,372	$	1,432,067	$	46,675,655

Continued

11

MICREL, INC. 401(k) PLAN

Notes to Financial Statements

_________________________

4. Fair Value Measurements, continued

	Assets at Fair Value as of December 31, 2008
	Level 1		Level 2		Level 3		Total
Cash	$	68,235	$	-	$	-	$	68,235
Registered investment companies		28,063,496		-		-		28,063,496
Money market funds		114		-		-		114
Employer common stock		419,557		-		-		419,557
Guaranteed investment contract		-		6,185,039		-		6,185,039
Participant loans		-		-		1,280,744		1,280,744
Total assets at fair value	$	28,551,402	$	6,185,039	$	1,280,744	$	36,017,185

The table below sets forth a summary of changes in the fair value of the Plan’s Level 3 assets for the year ended December 31, 2009:

	Participant
	Loans
Balance, beginning of year	$	1,280,744
Purchases, issuances, and settlements, net		151,323
Balance, end of year	$	1,432,067

5. Investments

The following presents the fair values of individual investments representing five percent (5%) or more of the Plan’s net assets at December 31, 2009 and 2008:

	2009		2008
Metlife Stable Value Fund	$	7,075,372	$	6,185,039
American Funds Europacific	$	3,392,256	$	2,244,591
Columbia Intermediate Bond	$	3,315,984	$	2,612,167
Royce Premier Investment Class	$	3,056,463	$	2,045,403
Dreyfus S&P 500 Index	$	2,901,459	$	2,318,363
Dreyfus Midcap Index	$	2,720,728	$	2,145,481
American Funds Growth Fund	$	2,697,406	$	1,875,415
Schwab International Index Fund	$	-	$	1,733,840
Selected American Shares	$	-	$	1,598,880

Continued

12

MICREL, INC. 401(k) PLAN

Notes to Financial Statements

_________________________

5. Investments, continued

During 2009, the Plan’s investments appreciated in value by $8,623,598 (including gains and losses on investments bought and sold, as well as held during the year) as follows:

Registered investment companies	$	7,502,581
Guaranteed investment contract		1,062,602
Employer common stock		58,415
	$	8,623,598

6. Nonparticipant-Directed Investments

Information about the net assets and significant components of the changes in net assets relating to the nonparticipant-directed investments is as follows:

	2009			2008
Net assets:
Registered investment companies (mutual funds and cash)	$	6,139,477		$	5,181,406
Money market funds	$	748,194		$	362,786
Changes in net assets:
Interest and dividends	$	145,660
Realized and unrealized gain in investments		930,130
Contributions		587,000
Benefits paid to participants		(319,311	)
	$	1,343,479

7. Tax Status

The Internal Revenue Service has determined and informed Company by a letter dated November 4, 2005, that the Plan was designed in accordance with applicable sections of the Internal Revenue Service Code (the Code). The Plan has been amended since adoption. However, the Plan administrator and the Plan’s tax counsel believe that the Plan is designed and is currently being operated in compliance with the applicable requirements of the Code. Therefore, no provision for income taxes has been included in the Plan’s financial statements.

Continued

13

MICREL, INC. 401(k) PLAN

Notes to Financial Statements

_________________________

8. Party-in-Interest and Related Party Transactions

As allowed by the Plan, participants may elect to invest their salary deferral contributions in the Company’s common stock. Aggregate investment in the Company’s common stock at December 31, 2009 and 2008 was as follows:

	Number of
	Shares		Fair Value
2009		56,117	$	460,159
2008		57,395	$	419,557

Certain Plan investments are managed by Schwab, the custodian and trustee of the Plan. Any purchases and sales of these funds are performed in the open market at fair value. Such transactions, while considered party-in-interest transactions under ERISA regulations, are permitted under the provisions of the Plan and are specifically exempt from the prohibition of party-in-interest transactions under ERISA.

9. Plan Termination

Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. In the event of plan termination, the full value of each participant’s account shall become fully vested and nonforfeitable.

10. Excess Contribution Refundable

At December 31, 2009 and 2008, payables of $202,835 and $62,005, respectively, are recorded for amounts refundable by the Plan to participants for contributions made in excess of amounts allowed by the Internal Revenue Service.

11. Subsequent Events

In accordance with accounting standards affecting disclosures of subsequent events, the Plan evaluated subsequent events for recognition and disclosure through the date which these financial statements were available to be issued. Effective February 2010, Plan assets were transferred to Fidelity Management Trust Company as new Plan Trustee and Custodian. Management concluded that no other material subsequent event has occurred since December 31, 2009 that requires recognition or disclosure in the financial statements.

Continued

14

MICREL, INC. 401(k) PLAN
Trust EIN: 94-2526744
Schedule H, Line 4i
Plan Number 001
SCHEDULE OF ASSETS (HELD AT END OF YEAR)
December 31, 2009
____________
(a)		(b)	(c)	(d)		(e)
		Identity of Issuer, Borrower, Lessor, or Similar Party	Description of Investment	Cost		Fair Value
		Participant directed:
		Cash	Cash		n/a	$	2,859
		Metlife Stable Value Fund	Guaranteed Investment Contract		n/a		7,047,866	**
	*	Micrel Semiconductor, Inc.	Common Stock		n/a		460,159
	*	Schwab Investor Money Fund	Money Market, various rates		n/a		1,026
	*	Schwab Retirement Adv Money	Money Market, various rates		n/a		2,339
	*	Schwab US Treasury Money Fund	Money Market, various rates		n/a		114
		Alger Small Cap Growth Instl	Mutual Fund		n/a		1,627,514
		American Funds Europacific	Mutual Fund		n/a		3,392,256
		American Funds Growth Fund	Mutual Fund		n/a		2,697,406
		Artisan Mid Cap	Mutual Fund		n/a		1,899,382
		Columbia Intermediate Bond	Mutual Fund		n/a		3,315,984
		Dreyfus Bond Market Index Inv	Mutual Fund		n/a		1,282,487
		Dreyfus Mid Cap Index	Mutual Fund		n/a		2,720,728
		Dreyfus S&P 500 Index	Mutual Fund		n/a		2,901,459
		Goldman Sachs Mid Cap Value	Mutual Fund		n/a		2,181,973
		Royce Premier Investment Class	Mutual Fund		n/a		3,056,463
	*	Schwab Int'l Index Select	Mutual Fund		n/a		2,151,441
	*	Schwab Market Place Balanced	Mutual Fund		n/a		493,161
		Selected American Shares	Mutual Fund		n/a		2,068,540
		Van Kampen Growth & Income	Mutual Fund		n/a		937,761
		Vanguard Small Cap Index	Mutual Fund		n/a		87,493
	*	Participant loans	5.25% to 10.25%, various maturities		n/a		1,432,067
							39,760,478
		Nonparticipant directed:
		Cash	Cash		3		3
	*	Schwab Retirement Advantage Money Fund	Money Market, various rates		748,194		748,194
		Allianz NFJ Small Cap Value Fund ADM	Mutual Fund		381,521		329,851
		Dodge & Cox Income Fund	Mutual Fund		736,750		759,932
		Eaton Vance Large Cap Value	Mutual Fund		809,635		727,862
		Fidelity Adv Small Cap Fund	Mutual Fund		354,312		355,602
		Harbor Capital Appreciation Fund	Mutual Fund		669,381		813,505
		Janus Enterprise Fund	Mutual Fund		297,130		362,807
		Pimco Total Return Fund Instl Class	Mutual Fund		645,653		674,671
		Selected American Shares	Mutual Fund		434,844		453,599
		T Rowe Price Mid Cap Value	Mutual Fund		403,418		395,570
		Vanguard F-I Secs Short-Term Federal	Mutual Fund		790,029		812,544
		Vanguard 500 Index Signal	Mutual Fund		481,692		453,531
							6,887,671
		Total investments				$	46,648,149
	*	Party-in-interest.
	**	Contract value
	n/a	Cost data not required

15

SIGNATURE

THE PLAN, Pursuant to the requirements of the Securities Exchange Act of 1934. The Micrel, Inc. 401(k) Plan Administrative Committee has duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.

	MICREL, INC. 401(k) PLAN
Date: June 18, 2010	By: /s/ Clyde R. Wallin Clyde R. Wallin Vice President, Finance and Chief Financial Officer

16

	EXHIBITS
Exhibit Number	Description of Exhibit
23.1	Consent of Burr Pilger Mayer, Inc., Independent Registered Public Accounting Firm

17