437 Series - 1206 Size Lead-Free, Halogen Free, High Temperature Very Fast-Acting Ceramic Fuse

This 100% Lead-free, RoHS compliant and Halogen-free fuse series has been designed specifically to provide over current protection to circuits that see high working ambient temperatures (up to 150ºC).
The general design ensures excellent temperature stability and performance reliability.
In addition to this, the high I²t values typical of the Littelfuse Ceramic Fuse family ensure high inrush current withstand capability.

Features:
  • Operating Temperature from -55ºC to +150ºC
  • 100% Lead-free, HalogenFree and RoHS compliant
  • Suitable for both leaded and lead-free reflow / wave soldering

Applications:

  • LCD Displays
  • Servers
  • Printers
  • Scanners
  • Data Modems

Access specifications, certifications, check availability and order parts below

Catalog #Amps (A)VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
(Ω)
Interrupting RatingBodyMin Operating Temp °CMax Operating Temp (°C)Marking CodeStockSamplesCompare
0437.2500.251251250.0032.2950A@125VDCCeramic Body-55150DCheckOrder
0437.3750.3751251250.011.3350A@125VDCCeramic Body-55150ECheckOrder
0437.5000.563630.0180.90850A@63VDCCeramic Body-55150FCheckOrder
0437.7500.7563630.0640.66550A@63VDCCeramic Body-55150GCheckOrder
0437001163630.10.3650A@63VDCCeramic Body-55150HCheckOrder
0437002263630.28420.06250A@63VDCCeramic Body-55150NCheckOrder
0437003332320.40.03350A@32VDCCeramic Body-55150PCheckOrder
0437004432321.0240.02250A@32VDCCeramic Body-55150SCheckOrder
0437005532321.9360.01650A@32VDCCeramic Body-55150TCheckOrder
0437007732324.90.0150A@32VDCCeramic Body-55150WCheckOrder
0437008832326.40.008750A@32VDCCeramic Body-55150XCheckOrder
043701.51.563630.1580.20950A@63VDCCeramic Body-55150KCheckOrder
043702.52.532320.38860.04350A@32VDCCeramic Body-55150OCheckOrder
043703.53.532320.5760.02750A@32VDCCeramic Body-55150RCheckOrder
04371.251.2563630.11170.31850A@63VDCCeramic Body-55150JCheckOrder
04371.751.7563630.24690.07150A@63VDCCeramic Body-55150LCheckOrder

Littelfuse Fuse 437 Series Data Sheet

Littelfuse Fuse 437 Series Ceramic Chip Fuse Data Sheet

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