434 Series - OBSOLETE - SlimLine 0603 Very Fast-Acting Thin-Film Fuse

434
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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 434 series fast-acting surface mount fuse series is 
an ultra small (0603 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 467 series thin film fuse


Features:

  • The SlimLine 0603 fuse is an extremely small, low profile design (0603 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 applications.

Access specifications, certifications, check availability and order parts below

Catalog #VDC (V)VAC (V)Nominal Melting I2T (A2sec)Resistance
(Ω)
BodyMin Operating Temp (°C)Max Operating Temp (°C)OpeningStockCompare
0434.250
Obsolete: 2008 -12-31
Replaced By: 0467.250NR0467.250
32320.0030.375Epoxy Substrate-5590Very Fast-Acting (FF)
0434.375
Obsolete: 2008 -12-31
Replaced By: 0467.375NR0467.375
32320.00530.265Epoxy Substrate-5590Very Fast-Acting (FF)
0434.500
Obsolete: 2008 -12-31
Replaced By: 0467.500NR0467.500
32320.00870.193Epoxy Substrate-5590Very Fast-Acting (FF)
0434.680
Obsolete: 2008 -12-31
32320.01090.125Advanced High Temperature Substrate-5590Very Fast-Acting (FF)Check
0434.750
Obsolete: 2008 -12-31
Replaced By: 0467.750NR0467001.
32320.01710.114Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
0434001.
Obsolete: 2008 -12-31
Replaced By: 0467001.NR04671.25
32320.02120.072Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
0434002.
Obsolete: 2008 -12-31
Replaced By: 0467002.NR046701.5
32320.1040.036Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
0434003.
Obsolete: 2008 -12-31
Replaced By: 0467003.NR04671.75
32320.1980.023Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
0434004.
Obsolete: 2008 -12-31
Replaced By: 0467004.NR0467002.
32320.3520.017Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
0434005.
Obsolete: 2008 -12-31
Replaced By: 0467005.NR046702.5
32321.2970.013Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
043401.5
Obsolete: 2008 -12-31
Replaced By: 046701.5NR0467003.
32320.05260.048Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
043402.5
Obsolete: 2008 -12-31
Replaced By: 046702.5NR046703.5
32320.1750.028Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
043403.5
Obsolete: 2008 -12-31
Replaced By: 046703.5NR0467004.
32320.2650.019Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
04341.25
Obsolete: 2008 -12-31
Replaced By: 04671.25NR0467005.
32320.0320.054Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
04341.75
Obsolete: 2008 -12-31
Replaced By: 04671.75NR04671.75
32320.06610.039Advanced High Temperature Substrate-5590Very Fast-Acting (FF)
To request product environmental information, please complete the Product Environmental Information Request Form.

Littelfuse_Phils_ISO9001_102407icon 2022-06-17_ISO 9001 2015_LF Phils

PhilsISO14001Certificateicon 2022-04-19_ISO 14001-2015_LF Phils

434icon Fuse 434 Datasheet

The 434 series fast-acting surface mount fuse series is an ultra small (0603 size) thin-film device...

EC611 Circuit Protection for Lithium Ion and Lithium Polymer Rechargeable Battery Applications

This application note summarizes how the increased use of Lithium-Ion and Lithium Polymer battery packs in applications where user safety is critical, the implementation of secondary protection circuits will ensure an unsurpassed level of safety with minimal cost impact.

PCN EFU100 3_PCN Obs_Non RoHS_Thin Film fuse_032708icon Non RoHS Thin Film Fuse Obsoletion

PCN# EFU100-3 Littelfuse Inc. would like to inform customers that it will cease production of its Non-RoHS compliant and lead based Surface Mount Thin Film Fuses products on December 31 2008. The product series impacted are the following. Thin Film Fuse Series - 0430, 0433, 0434 and the 0429xxx.WRM series. The final date for which orders will be taken is September 30, 2008. In all cases Littelfuse has RoHS and Lead-Free alternative series now available . The most up to date information on these series can be found on the Littelfuse website, http://www.littelfuse.com/. Littelfuse Inc is implementing this change so that it can continue to pursue a policy of manufacturing and selling "Green" products.

434 Series Time Curve Data

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