0477016 - 477 Series

Series: 477
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SX20 001
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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.

The 477 Series is the first and smallest 500VAC and 400VDC fuse under the class of 5x20mm fuse family. It is designed for circuit protection in the area of high energy applications.

With its DC and AC characteristics, the 477 Series is well suited for high energy or power efficient applications and 3-phase power supplies protection respectively.

In addition, it has interrupting rating (0.5A to 16A) at 400Vdc which ensures the circuit is well protected under DC conditions.


  • DC interrupting current
  • 100% Lead-Free and RoHS compliant
  • UL and CSA, SEMKO agency approval

  • Input of 3 phase Power Supplies
  • Inverter in LCD backlight unit
  • DC side of air-conditioner unit

Property (Mouseover for details) Value
Body Ceramic
Nominal Melting I2T (A2sec) 1331.2
Nominal Cold Resistance (Ohms) 3.1
Opening Slo-Blo/Time Lag (T)/Time Delay
VAC (V) 500
VDC (V) 400
Partner ECAD Models 0477016
Operating Temperature -55° to 125°C

METIicon UL_NBK100408_JP1021A

TUVicon TUV_J50248089

METIicon UL_NBK100408_JP1021B

0477016 ECAD Models

CEicon CE_Doc_477 series

UKCAicon UK_Doc_477

curus cUR_JDYX8_E10480_101546596

UR UR_JDYX2_E10480_101546596

pdf icon General Port Protection

pdficon Fuse 477 Datasheet

477 Series 5×20 mm Time-Lag (Slo-Blo®) Fuse...

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

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

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

pdficon 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...

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
0477016.MXP FUSE 500Vac 400Vdc 5X20 TL 16A RoHS No 01/01/2008 PbFree No 01/01/2008 CoC_RoHS10_0477016.MXP REACH219_Declaration_0477016.MXP No
Does not Contain IPC_0477016.MXP
0477016.MXEP FUSE 500Vac 400Vdc 5X20 TL PT 16A RoHS No 01/01/2008 PbFree No 01/01/2008 REACH219_Declaration_0477016.MXEP No
Does not Contain
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