0433.750 - 433 Series

Series: 433
Replaced By: 0466.750
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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.

The 433 series fast-acting surface mount fuse series
is a small (1206 size) thin-film device designed for
secondary protection of circuits used in space constrained
applications such as hand-held portable electronic devices.
For RoHS compliant and lead-free design, please refer to
the Littelfuse 466 series thin film fuse. For new designs of
7 amp please refer to Littelfuse 429 series thin film fuse.


  • The SlimLine 1206 fuse is an extremely small, low profile design (1206 chip size) utilizing thin-film technology to achieve precise control of electrical characteristics.
  • The lower height profile produces a flat surface for improved performance in pick-and-place operations and an alternate solution for height critical application.
  • Mounting pad and electrical specification are identical to the popular 429 Series specifications.
Property (Mouseover for details) Value
Body Epoxy Substrate
Nominal Melting I2T (A2sec) 0.017
Opening Very Fast-Acting (FF)
Replaced By Part Number 0466.750NRHF
Operating Temperature -55° to 90°C
Partner ECAD Models 0433.750

pdficon Fuse 433 Datasheet

The 433 series fast-acting surface mount fuse series is a small (1206 size) thin-film device designed for secondary protection of circuits...

pdficon Non RoHS Thin Film Fuse Obsoletion

PCN# EFU100-3

tc-icon 433 Series Time Curve Data

pdficon How to Specify a CablePro Fuse to Improve Design

pdficon Circuit Protection Technology Application Matrix Application Guide

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

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