437A Series - 1206 AECQ-compliant Fuses

Roll Over to Zoom

The 437A series AECQ-Compliant fuses are specifically tested to cater to secondary circuit protection needs of compact auto-electronics applications.


  • AECQ-Compliant
  • Fast response to faulty current to ensure over-current protection to sensitive electronic component.
  • Operating Temperature  from -55°C to +150°C
  • 100%  Lead-free, Halogen-Free and RoHS compliant


  • Li-ion Battery
  • LED Head-Lights
  • Navigation
  • TFT display
  • BMS

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
Interrupting RatingBodyMin Operating Temp (°C)Max Operating Temp (°C)Marking CodeMSLNom
0437.500A0.563630.0180.90850A@63VDCCeramic Body-55150FIPC/JEDEC J-STD-020C LEVEL 10.260.52Fast-Acting (F)1206 (3216)CheckOrder
0437.750A0.7563630.0640.650A@63VDCCeramic Body-55150GIPC/JEDEC J-STD-020C LEVEL 10.3380.45Fast-Acting (F)1206 (3216)CheckOrder
0437001A163630.10.4250A@63VDCCeramic Body-55150HIPC/JEDEC J-STD-020C LEVEL 10.410.41Fast-Acting (F)1206 (3216)CheckOrder
0437002A263630.1440.06250A@63VDCCeramic Body-55150NIPC/JEDEC J-STD-020C LEVEL 10.40.20Fast-Acting (F)1206 (3216)CheckOrder
0437003A332320.5060.03550A@32VDCCeramic Body-55150PIPC/JEDEC J-STD-020C LEVEL 10.420.14Fast-Acting (F)1206 (3216)CheckOrder
0437004A432321.0240.02250A@32VDCCeramic Body-55150SIPC/JEDEC J-STD-020C LEVEL 10.640.13Fast-Acting (F)1206 (3216)CheckOrder
0437005A532322.3000.015950A@32VDCCeramic Body-55150TIPC/JEDEC J-STD-020C LEVEL 10.650.13Fast-Acting (F)1206 (3216)CheckOrder
043701.5A1.563630.3240.20950A@63VDCCeramic Body-55150KIPC/JEDEC J-STD-020C LEVEL 10.5850.39Fast-Acting (F)1206 (3216)CheckOrder
043702.5A2.532320.4410.04350A@32VDCCeramic Body-55150OIPC/JEDEC J-STD-020C LEVEL 10.3750.15Fast-Acting (F)1206 (3216)CheckOrder
043703.5A3.532320.7770.02750A@32VDCCeramic Body-55150RIPC/JEDEC J-STD-020C LEVEL 10.4650.13Fast-Acting (F)1206 (3216)CheckOrder
04371.25A1.2563630.2560.31850A@63VDCCeramic Body-55150JIPC/JEDEC J-STD-020C LEVEL 10.50.4Fast-Acting (F)1206 (3216)CheckOrder
04371.75A1.7563630.0750.07150A@63VDCCeramic Body-55150LIPC/JEDEC J-STD-020C LEVEL 10.4730.27Fast-Acting (F)1206 (3216)CheckOrder

pdf icon ESD Protection Solutions

pdf icon xEV power train

pdf icon Littelfuse Fuse Accessories Selection Guide

A quick reference guide to selecting holders, blocks and clips for fuse applications...

pdf icon Fuse Selection Guide

A quick reference guide to selecting fuses for electronic applications...

pdf icon Product Selection Guide

Electronics Circuit Protection Product Selection Guide - A guide to selecting Littelfuse circuit protection components for electronic applications...

pdf icon Circuit Protection Technology Application Matrix

Littelfuse is the world leader in the design and manufacturing of fuses for the automotive, industrial, handheld, computer and telecom markets...

pdf icon Electronic Fuse Products Catalog

Littelfuse Electronic Fuse Products Catalog -- Miniature Fuse Products for Overcurrent Protection of Small Electrical and Electrical Applications...

pdf icon Fuseholder Selection Guide

pdf icon Fuseology Selection Guide

Littelfuse Fuseology Selection Guide