203 Series - FLAT-PAK® Slo-Blo® Subminiature Fuse

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Fast-Acting and Slo-Blo® Fuse versions of the Flat-Pak® Fuse designs are available. Both designs are available in either a gull-wing surface mount package or a DIP configuration for through-hole mounting. These fuse designs feature a 250 VAC rating in a low profile, rectangular package.

Access specifications, certifications, check availability and order parts below

Catalog #VAC (V)Nominal Melting I2T (A2sec)Resistance
OpeningMin Operating Temp (°C)Max Operating Temp (°C)Partner ECAD ModelsStockSamplesCompare
0203.2502500.01261.32Slo-Blo/Time Lag (T)/Time Delay-55125203_25CheckOrder
0203.5002500.1120.433Slo-Blo/Time Lag (T)/Time Delay-55125203_5CheckOrder
0203.7502500.4620.158Slo-Blo/Time Lag (T)/Time Delay-55125203_75CheckOrder
0203001.2500.3280.0755Slo-Blo/Time Lag (T)/Time Delay-55125203001CheckOrder
0203002.2501.70.0337Slo-Blo/Time Lag (T)/Time Delay-55125203002CheckOrder
0203003.2504.40.0197Slo-Blo/Time Lag (T)/Time Delay-55125203003CheckOrder
0203004.25011.660.0148Slo-Blo/Time Lag (T)/Time Delay-55125203004CheckOrder
0203005.25014.70.012Slo-Blo/Time Lag (T)/Time Delay-55125203005CheckOrder
020301.52500.850.0399Slo-Blo/Time Lag (T)/Time Delay-5512520301_5CheckOrder
020302.52502.870.0243Slo-Blo/Time Lag (T)/Time Delay-5512520302_5CheckOrder
To request product environmental information, please complete the Product Environmental Information Request Form.

pdf icon Fuse 203 Datasheet

Fast-Acting and Slo-Blo® Fuse versions of the Flat-Pak Fuse designs are available...

LittelfusePiedrasNegrasTS16949 2009icon 2020-10-20_IATF 16949_Piedras Negras Mexico

Littelfuse_Mexico_PiedrasNegras_ISO14001icon 2021-02-14_ISO 14001 2015_Piedras Negras Mexico

203 Series Time Curve

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