429 Series - 1206 Very Fast-Acting Thin-Film Fuse

429
OBSOLETE with the exception of the 7A RoHS device.

The 429 Series Fast-Acting SMF is a small (1206 size) thinfilm device designed for secondary protection of circuits 
used in space constrained applications such as hand-held 
portable electronic devices. 
This series is Halogen-Free, Lead-Free and meets the 
requirements of the RoHS directive


Features:

  • RoHS compliant andLead-Free 7A device available-add ‘L’ suffix to part number.
  • Halogen-Free 7Adevice available-add ‘HF’ suffix to the part number
  • For new designs up to 5A please consult the 433 or 466 Series

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
0429007.724244.90.00935A@24VDCEpoxy Substrate-55907CheckOrder
429.125
Obsolete: 2009-03-18
Replaced By: 0466.125NR0466.125
0.1251251250.00022.350A@125VDCEpoxy Substrate-5590
429.200
Obsolete: 2008-11-16
Replaced By: 0466.200NR0466.200
0.21251250.00060.93850A@125VDCEpoxy Substrate-5590
429.250
Obsolete: 2009-03-18
Replaced By: 0466.250NR0466.250
0.251251250.0010.62550A@125VDCEpoxy Substrate-5590
429.375
Obsolete: 2008-11-16
Replaced By: 0466.375NR0466.375
0.3751251250.00280.37550A@125VDCEpoxy Substrate-5590
429.500
Obsolete: 2008-11-16
Replaced By: 0466.500NR0466.500
0.563630.0060.240550A@63VDCEpoxy Substrate-5590
429.750
Obsolete: 2008-11-16
Replaced By: 0466.750NR0466.750
0.7563630.0170.13750A@63VDCEpoxy Substrate-5590
429001
Obsolete: 2009-03-18
Replaced By: 0466001.NR0466001.
163630.0350.099550A@63VDCEpoxy Substrate-5590
429002
Obsolete: 2008-11-16
Replaced By: 0466002.NR0466002.
263630.230.039850A@63VDCEpoxy Substrate-5590
429003
Obsolete: 2009-03-23
Replaced By: 0466003.NR0466003.
332320.70.026250A@32VDCEpoxy Substrate-5590
429004
Obsolete: 2008-11-16
Replaced By: 0466004.NR0466004.
424241.50.019335A@24VDCEpoxy Substrate-5590
429005
Obsolete: 2008-11-16
Replaced By: 0466005.NR0466005.
524242.70.013835A@24VDCEpoxy Substrate-5590
42901.5
Obsolete: 2008-11-16
Replaced By: 046601.5NR046601.5
1.563630.1250.062550A@63VDCEpoxy Substrate-5590
42902.5
Obsolete: 2008-11-16
Replaced By: 046602.5NR046602.5
2.532320.50.030750A@32VDCEpoxy Substrate-5590
4291.25
Obsolete: 2008-11-16
Replaced By: 04661.25NR04661.25
1.2563630.0650.074750A@63VDCEpoxy Substrate-5590
4291.75
Obsolete: 2008-11-16
Replaced By: 04661.75NR04661.75
1.7563630.150.0550A@63VDCEpoxy Substrate-5590

429icon Fuse 429 Datasheet

The 429 Series Fast-Acting SMF is a small (1206 size) thinfilm device designed for secondary protection of circuits used in space constrained applications such as hand-held portable electronic devices...

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.

429 Series Time Curve Data

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