![0435005.KR — Fuse, Surface Mount, 5 A, Very Fast Acting, 32 V, 0402 [1005 Metric], 435 Series](/media/4/2/E/82D72358D3E90E24.webp)
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0435005.KR
Fuse, Surface Mount, 5 A, Very Fast Acting, 32 V, 0402 [1005 Metric], 435 Series
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- Manufacturer: LITTELFUSE
- Product type: SMD Fuses
- Fuse Current:5A; Product Range:435 Series; Voltage Rating VAC:-; Voltage Rating V DC:32VDC; Blow Characteristic:Very Fast Acting; Fuse Case Style:0402; Breaking Capacity Current
- SVHC: No SVHC (25-Jun-2020)
- Fuse Current: 5A
- Product Range: 435 Series
- Fuse Case Style: 0402 [1005 Metric]
- Voltage Rating VAC: -
- Voltage Rating VDC: 32VDC
- Blow Characteristic: Very Fast Acting
- Breaking Capacity Current AC: -
- Breaking Capacity Current DC: 50A
| Delivery and price | |
|---|---|
| Units per pack | 10000 |
| Price | 0.669 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**Surface Mount Fuses** Thin Film > 0402 Size > Very Fast-Acting > 435 Series ## 435 Series Fuse ## ~~**Description**~~ The 435 Series are fast-acting surface mount thin-film fuses. Their ultra-small size (0402 size) makes them ideal for secondary protection of circuits used in space constrained applications such as hand-held portable electronic devices. This series is 100% lead-free and meet the requirements of the RoHS directive. New Halogen-Free 435 Series fuses are available–to order use the “HF” suffix. See Part Numbering section for additional information. ## ~~**Features**~~ ## ~~**Agency Approvals** Lo~~ AgeNCy AgeNCy FIle NumbeR AmpeRe RANge \ e10480 0.250 - 5.0A lR 29862 0.250 - 5.0A |~~**Electrical Characteristics for Series**~~<br>~~Lo~~|~~**Electrical Characteristics for Series**~~<br>~~Lo~~|~~**Electrical Characteristics for Series**~~<br>~~Lo~~| |---|---|---| |% of Ampere<br>Rating|Ampere<br>Rating|Opening Time at 25OC| |100%|0.250A - 5A|4 hours, Minimum| |200%|0.375A - 5A|5 secs., Maximum| |300%|0.250A|5 secs., Maximum| |300%|0.375A - 5A|0.2 sec., Maximum| - 35A interrupt rating at • Maximum protection of 32VDC sensitive circuits as fuses - • Small size with current are designed to open ratings of 0.25 to 5.0 consistently in <5sec at 200% overload. - amperes - RoHS compliant, lead-free • Enhanced Breaking and halogen-free Capacity, High l[2] t ## ~~**Applications** Po~~ Secondary protection for space constrained applications such as: - Cell phones - DVD players - Hard disk drives. - Battery packs - Digital cameras ## **Additional Information** **==> picture [197 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> Datasheet Resources Samples<br>**----- End of picture text -----**<br> ## ~~**Electrical Specifcations by Item** Lo~~ |Ampere<br>Rating<br>(A)<br>0.250<br>0.375<br>0.500<br>0.750<br>1.00<br>1.25<br>1.50<br>1.75|Amp<br>Code<br>.250<br>.375<br>.500<br>.750<br>001.<br>1.25<br>01.5<br>1.75<br>~~a~~<br>~~a~~<br>~~a~~<br>~~a~~<br>~~a~~<br>~~a~~<br>~~a~~<br>~~a~~|max Voltage<br>Rating<br>(V)<br>32<br>32<br>32<br>32<br>32<br>32<br>32<br>32|Interrupting<br>Rating<br>35A @32V<br>DC|Nominal Cold<br>Resistance<br>(Ohms)<br>Nominal<br>melting<br>I2t(A2sec)<br>Nom<br>Voltage Drop<br> (mV)<br>Nom power<br>Dissipation<br> (W)<br>AgencyApprovals<br>0.2265<br>0.0025<br>60.67<br>0.01517<br>x<br>x<br>0.1930<br>0.0035<br>84.64<br>0.03174<br>x<br>x<br>0.1600<br>0.0053<br>93.35<br>0.04668<br>x<br>x<br>0.1050<br>0.0120<br>101.84<br>0.07638<br>x<br>x<br>0.0730<br>0.0200<br>87.45<br>0.08745<br>x<br>x<br>0.0600<br>0.0350<br>96.37<br>0.12046<br>x<br>x<br>0.0470<br>0.0560<br>86.70<br>0.13005<br>x<br>x<br>0.0390<br>0.0750<br>81.13<br>0.14198<br>x<br>x<br>|~~AW~~<br>@.<br>~~a~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~po~~<br>~~esse~~<br>~~po~~<br>~~esse~~<br>~~po~~<br>~~esse~~<br>~~po~~|Nominal Cold<br>Resistance<br>(Ohms)<br>Nominal<br>melting<br>I2t(A2sec)<br>Nom<br>Voltage Drop<br> (mV)<br>Nom power<br>Dissipation<br> (W)<br>AgencyApprovals<br>0.2265<br>0.0025<br>60.67<br>0.01517<br>x<br>x<br>0.1930<br>0.0035<br>84.64<br>0.03174<br>x<br>x<br>0.1600<br>0.0053<br>93.35<br>0.04668<br>x<br>x<br>0.1050<br>0.0120<br>101.84<br>0.07638<br>x<br>x<br>0.0730<br>0.0200<br>87.45<br>0.08745<br>x<br>x<br>0.0600<br>0.0350<br>96.37<br>0.12046<br>x<br>x<br>0.0470<br>0.0560<br>86.70<br>0.13005<br>x<br>x<br>0.0390<br>0.0750<br>81.13<br>0.14198<br>x<br>x<br>|~~AW~~<br>@.<br>~~a~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~po~~<br>~~esse~~<br>~~po~~<br>~~esse~~<br>~~po~~<br>~~esse~~<br>~~po~~| |---|---|---|---|---|---| |2.00|002.<br>~~a~~|32||0.0300<br>0.1000<br>70.62<br>0.14120<br>x<br>~~pO~~|x| |2.50|02.5<br>~~a~~|32||0.0185<br>0.1560<br>55.25<br>0.13813<br>x<br>~~a se~~|x| |3.00|003.<br>~~a~~|32||0.0165<br>0.2032<br>60.58<br>0.18740<br>x<br>~~pO~~|x| |3.50|03.5<br>~~a~~|32||0.0135<br>0.3017<br>57.84<br>0.20244<br>x<br>~~a se~~|x| |4.00<br>5.00|004.<br>005.<br>~~a~~<br>~~a~~|32<br>32||0.0115<br>0.3084<br>57.00<br>0.22800<br>x<br>0.0085<br>0.5310<br>52.44<br>0.26220<br>x<br>~~pO~~<br>~~es~~|x<br>x| 1. Measured at 10% of rated current, 25ºC. 2. Measured at rated voltage. © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/19/13 Thin Film > 0402 Size > Very Fast-Acting > 435 Series **==> picture [94 x 32] intentionally omitted <==** ## **Surface Mount Fuses** ## ~~**Temperature Rerating Curve**~~ **==> picture [243 x 179] intentionally omitted <==** Note: 1. Derating depicted in this curve is in addition to the standard derating of 25% for continuous operation. ## Example: For continuous operation at 70 degrees celsius, the fuse should be deratedas follows: - I = (0.75)(0.80)IRAT = (0.60)IRAT 2. The temperature derating curve represents the nominal conditions. For questions about temperature derating curve, please consult Littelfuse technical support for assistance. ## ~~**Average Time Current Curves**~~ **==> picture [243 x 294] intentionally omitted <==** **----- Start of picture text -----**<br> 100<br>10<br>1<br>0.1<br>0.01<br>0.001<br>0.1 1.0 10.0 100.0<br>CURRENT IN AMPERES<br>.25A .375A .5A .75A 1A 1.25A 1.5A 1.75A 2A 2.5A 3A 3.5A 4A 5A<br>TIME IN SECONDS<br>**----- End of picture text -----**<br> ## ~~**Soldering Parameters**~~ ||Refow Condition<br>pre Heat<br>- Temperature min (Ts(min))<br>- Temperature max (Ts(max))<br>- Time (min to max) (ts)<br>Average ramp up rate (liquidus Temp<br>(Tl) to peak|Pb – Free assembly<br>150°C<br>200°C<br>60 – 120 secs<br>5°C/second max| |---|---|---| ||TS(max)to Tl- Ramp-up Rate|5°C/second max| ||Refow<br>- Temperature (Tl) (liquidus)<br>- Temperature (tl)|217°C<br>60 – 150 seconds| ||peak Temperature (Tp)|250+0/-5°C| ||Time within 5°C of actual peak<br>Temperature (tp)|20 – 40 seconds| ||Ramp-down Rate|5°C/second max| ||Time 25°C to peak Temperature (Tp)|8 minutes Max.| ||Do not exceed|260°C| |||| ||Wave Soldering<br>260°C, 10 seconds max.|| **==> picture [244 x 151] intentionally omitted <==** **----- Start of picture text -----**<br> t P<br>T P<br>Critical Zone<br>Ramp-up TL to TP<br>T S(max) T L t L<br>Ramp-down<br>Preheat<br>T S(min)<br>t S<br>25<br>time to peak temperature Time<br>(t 25ºC to peak)<br>Temperature<br>**----- End of picture text -----**<br> © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/19/13 **Surface Mount Fuses** Thin Film > 0402 Size > Very Fast-Acting > 435 Series **==> picture [93 x 32] intentionally omitted <==** **==> picture [523 x 153] intentionally omitted <==** **----- Start of picture text -----**<br> Product Characteristics<br>Body: Epoxy / Glass Substrate; –55°C to 90°C.<br>Parts with ‘HF’ suffix: Halogen Free Epoxy / Glass Operating Consult temperature rerating curve chart.<br>Materials Temperature For operation above 90°C please contact<br>Terminations: 100% Tin over Nickel over Copper Littelfuse.<br>Device Weight: 0.316mg<br>Thermal Shock Withstands 5 cycles of –55°C to 125°C<br>Terminal<br>MIL-STD-202F, Method 211A, Test Condition A<br>Strength<br>Vibration MIL-STD-202F<br>Insulation<br>After Opening: Greater than 10,000Ohms<br>Resistance<br>Dimensions Part Marking System<br>**----- End of picture text -----**<br> **==> picture [231 x 210] intentionally omitted <==** **----- Start of picture text -----**<br> A Marking code varies with amperage.<br>.991 +/- .051 Refer to Part Marking<br>(.039" +/- .002") System chart.<br>B .508 +/- .051<br>(.020" +/- .002")<br>.229 +/- .102<br>(.009" +/- .004")<br>0.330 +/- .102(.013" +/- .004") C 0.292 +/- .102(.012" +/- .004")<br>D .2159 +/- .0889<br>(.0085" +/- .0035") Reflow solder<br>recommended<br>Sn Cu mounting pad<br>dimensions<br>.584<br>(.023")<br>.381 1.55<br>(.015") (.061")<br>.558<br>(.022")<br>**----- End of picture text -----**<br> **==> picture [261 x 235] intentionally omitted <==** **----- Start of picture text -----**<br> Amp Marking<br>Code Code<br>.250 X<br>.375<br>.500<br>.750<br>001.<br>1.25<br>01.5<br>1.75<br>002.<br>02.5<br>003.<br>03.5<br>004.<br>005.<br>Part Numbering System<br>**----- End of picture text -----**<br> ## **0435 002. K R HF S** **==> picture [165 x 70] intentionally omitted <==** **----- Start of picture text -----**<br> A B C D<br>inch min 0.037 0.018 0.008 0.005<br>inch max 0.041 0.022 0.016 0.012<br>mm min 0.94 0.457 0.190 0.127<br>mm max 1.04 0.559 0.394 0.305<br>**----- End of picture text -----**<br> ## **SERIES** Refer to Amp Code column in the Electrical Specifications table. The dot is positioned at the end of the number sequence with whole ratings and within for fractional ratings. **Example:** 1.5 amp product is 0435 **01.5** KRHF (2 amp product shown) **qUANTITY Code** K = 10,000 Pieces **PACKAGING Code** R = Tape and Reel **HALOGEN FREE ITEM “S” - for .250A only** ||~~**Packaging**~~||||| |---|---|---|---|---|---| ||packaging Option|packaging Specifcation|Quantity|Quantity & packaging Code|| ||8mm Tape and Reel|EIA-481 Rev. D (IEC 60286, part 3)|10000|KR|| © 2013 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/19/13
Updated at June 7, 2026
Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.
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