EXHIBIT 21.1

SUBSIDIARIES

Accel AB – Sweden

Dongguan Littelfuse Electronics Co., Ltd. – China

H.I. Verwaltungs GmbH – Germany

Hamlin Electronics (Suzhou) Co., Ltd. - China

Hamlin Electronics Europe Ltd – United Kingdom

Hamlin Electronics GmbH - Germany

LF Consorcio S. de R.L. de C.V. – Mexico

LFUS LLC - Delaware

Littelfuse Asia Holding B.V. – Netherlands

Littelfuse Asia Sales B.V. – Netherlands

Littelfuse Asia Technology C.V. - Netherlands

Littelfuse B.V. – Netherlands

Littelfuse Commercial Vehicle LLC – Delaware

Littelfuse Commercial Vehicle Products, Italy S.r.l. – Italy

Littelfuse Concord Semiconductor, Inc. – Taiwan

Littelfuse da Amazonia, Ltda. – Brazil

Littelfuse Electronics (Kunshan) Co., Ltd – China

Littelfuse Electronics (Shanghai) Co., Ltd. – China

Littelfuse Electronics Taiwan Co., Ltd. – Taiwan

Littelfuse Europe GmbH – Germany

Littelfuse Far East Pte. Ltd. – Singapore

Littelfuse GmbH – Germany

Littelfuse HK Limited – Hong Kong

Littelfuse Holding B.V. – Netherlands

Littelfuse Holding GmbH – Germany

Littelfuse Holding II B.V. - Netherlands

Littelfuse Holding III B.V. - Netherlands

Littelfuse Holding IV B.V. – Netherlands

Littelfuse Holding Limited - Ireland

Littelfuse Italian Holdings S.r.l. – Italy

Littelfuse Italy S.r.l. – Italy

Littelfuse Japan G.K. – Japan

Littelfuse KK – Japan

Littelfuse LT, UAB – Lithuania

Littelfuse Mexico Distribution S. de R.L. de C.V. – Mexico

Littelfuse Mexico Holding LLC – Delaware

Littelfuse Mexico Manufacturing B.V. – Netherlands

Littelfuse Netherland C.V. - Netherlands

Littelfuse Phils, Inc. – Philippines

Littelfuse S. de R.L. de C.V. – Mexico

Littelfuse Semiconductor (Wuxi) Co., Ltd. – China

Littelfuse Triad, Inc. – Korea

Productos Electromecanicos BAC, S. de R.L. de C.V. – Mexico

SSAC LLC – South Dakota

Startco Canada LP - Canada

Startco Engineering ULC - Canada

Suzhou Littelfuse OVS Ltd. – China

SymCom, Inc. – South Dakota