![044002.5WRA — Fuse, Surface Mount, 2.5 A, Fast Acting, 32 V, 32 V, 1206 [3216 Metric], 440A Series](/media/F/1/B/7EDA1E4BD2EA0B1F.webp)
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044002.5WRA
Fuse, Surface Mount, 2.5 A, Fast Acting, 32 V, 32 V, 1206 [3216 Metric], 440A Series
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: LITTELFUSE
- Product type: SMD Fuses
- SVHC: To Be Advised
- Fuse Current: 2.5A
- Product Range: 440A Series
- Fuse Case Style: 1206 [3216 Metric]
- Voltage Rating VAC: 32V
- Voltage Rating VDC: 32V
- Blow Characteristic: Fast Acting
- Breaking Capacity Current AC: 50A
- Breaking Capacity Current DC: 50A
| Delivery and price | |
|---|---|
| Units per pack | 3000 |
| Price | 0.729 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**Surface Mount Fuses** Ceramic Fuse > 440A Series **Ro** ~~**HS**~~ **Pb** ~~[_IQHF cHAMus @.~~ ## 440A Series, 1206 High I2t Fuse ## ~~**Description**~~ The 440A Series AECQ-Compliant fuses are specifically tested to cater to secondary circuit protection needs of compact auto electronics applications. The general design ensures excellent temperature stability and performance reliability. This high I[2] t fuse series is designed to have ultra high inrush current withstand capability to avoid nuisance fuse open. ## ~~**Features**~~ - Operating Temperature • Ultra high I[2] t values from -55ºC to +150ºC - Fast response to faulty - • 100% Lead-free, RoHS current to ensure overcompliant and Halogen-free current protection to - • Meets Littelfuse’s sensitive electronic automotive qualifications* component ## ~~**Agency Approvals**~~ **==> picture [238 x 166] intentionally omitted <==** **----- Start of picture text -----**<br> AGENCY AGENCY FILE NUMBER AMPERE RANGE<br>E10480 0.500A - 8A<br>cA US<br>29862 0.500A - 8A<br>Electrical Characteristics for Series<br>% of Ampere<br>Ampere Rating Opening Time at 25ºC<br>Ratingg<br>.50A - .75A<br>100% 4 hours, Minimum<br>1.75A - 8A<br>.50A - .75A<br>350% 5 secs., Maximum<br>1.75A - 8A<br>——<br>**----- End of picture text -----**<br> - - Largely based on Littelfuse internal AEC-Q200 test plan. ## ~~**Applications**~~ - TFT Display - Li-ion Battery **==> picture [499 x 345] intentionally omitted <==** **----- Start of picture text -----**<br> ||||||||||||| |---|---|---|---|---|---|---|---|---|---|---|---| |Electrical Characteristics for Series|• LED Lighting|• Battery Management| |• Automotive Navigation|System (BMS)| |% of Ampere|System|• Cluster| |Ampere Rating|Opening Time at 25ºC| |Ratingg| |100%|.50A - .75A|4 hours, Minimum|Additional Information| |1.75A - 8A| |.50A - .75A| |350%|5 secs., Maximum| |1.75A - 8A| |——|ee| |Datasheet|Resources|Samples| |Electrical Specifcations by Item| |Ampere|Max.|Nominal|Nominal|Nominal Voltage|Nominal Power|Agency Approvals| |Rating|Amp|Voltage|Interrupting Rating|Resistance|Melting I|[2]|t|Drop At Rated|Dissipation At||| |Code|(AC/DC)|[1]| |(A)|Rating (V)|(Ohms)|[2]|(A|[2]|Sec.)|[3]|Current (V)|[4]|Rated Current (W)| |0.5|.500|63|0.8140|0.02642|0.4831|0.242|x|X| |50A @ 63VAC/DC| |0.75|.750|63|0.4624|0.09312|0.3983|0.299|x|X| || ||a ee| |1.75|i|1.75|es|63|50A @ 32VAC/63VDC|0.0450|0.3312|0.0777|0.136|x|X| |aGG| |2|002.|32|0.0385|0.4326|0.0792|0.158|x|X| || ||a| |2.5|02.5|32|0.02850|0.8191|0.0747|0.187|x|X| || ||a| |3|003.|32|0.02252|1.232|0.0742|0.223|x|X| || ||a| |3.5|03.5|32|0.01845|1.789|0.0757|0.265|x|X| || ||50A @ 32VAC/DC|a| |4|004.|32|0.01553|2.601|0.0709|0.284|x|X| || ||ee| |5|005.|32|0.0120|4.761|0.0654|0.327|x|X| || ||a|ee|ee|ee| |7|007.|32|0.00753|8.464|0.0696|0.487|x|X| || ||a|ee| |8|008.|32|0.00634|12.95|0.0655|0.524|x|X| || ||a|eeeeee|ee| **----- End of picture text -----**<br> Notes: 1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting Rating tested at rated voltage with time constant < 0.8 msec. Devices designed to carry rated current for 4 hours minimum. It is recommended that devices be operated continuously at no more than 80% rated current. See “Temperature Derating Curve”for additional derating information. Devices designed to be mounted with marking code facing up. 2. Nominal Resistance measured with < 10% rated current. 3. Nominal Melting I²t measured at 1msec. opening time. 4. Nominal Voltage Drop measured at rated current after temperature has stabilized. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/01/18 Application testing is strongly recommended. **Surface Mount Fuses** Ceramic Fuse > 440A Series **==> picture [89 x 32] intentionally omitted <==** ## ~~**Temperature Rerating Curve**~~ **==> picture [243 x 200] intentionally omitted <==** **----- Start of picture text -----**<br> 140<br>120<br>100<br>80<br>60<br>40<br>-65 -45 -25 -5 15 35 55 75 95 115 135 155<br>TEMPERATURE (°C)<br>PERCENT OF RATING<br>**----- End of picture text -----**<br> Note: 1. Rerating depicted in this curve is in addition to the standard derating of 20% for continuous operation. Example: For continuous operation at 75 degrees celsius, the fuse should be derated as follows: - I = (0.80)(0.85)IRAT = (0.68)IRAT ## ~~**Average Time Current Curves**~~ **==> picture [243 x 317] 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 10 100 1000<br>CURRENT IN AMPERES<br>0.5A 0.75A 1.75A 2A 2.5A 3A 3.5A 4A 5A 7A 8A<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 – 180 seconds<br>3°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)|260+0/-5°C| |Time within 5°C of actual peak<br>Temperature (tp)|10 – 30 seconds| |Ramp-down Rate|6°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 [243 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> © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/01/18 **Surface Mount Fuses** Ceramic Fuse > 440A Series **==> picture [89 x 32] intentionally omitted <==** ## ~~**Product Characteristics**~~ **==> picture [522 x 618] intentionally omitted <==** **----- Start of picture text -----**<br> Body: Advanced Ceramic High Temperature<br>MIL-STD-202, Method 108 with exemptions<br>Materials Terminations: Ag / Ni / Sn (100% Lead-free) Storage<br>Element Cover Coating: Lead-free Glass Thermal Shock JESD22 Method JA-104,<br>Moisture Sensitivity Test Test Conditions B and N<br>IPC/JEDEC J-STD-020, Level 1<br>Level MIL-STD-202, Method 103, 85C/85% RH<br>Biased Humidity<br>Solderability IPC/ECA/JEDEC J-STD-002, Condition C with 10% operating power for 1000 hrs<br>Operational Life MIL-STD-202, Method 108, Test Condition D<br>Humidity Test MIL-STD-202, Method 103, Conditions D<br>Resistance to<br>Resistance to Solder MIL-STD-202, Method 215<br>MIL-STD-202, Method 210, Condition B Solvents<br>Heat<br>Mechanical Shock MIL-STD-202, Method 213, Test Condition C<br>Moisture Resistance MIL-STD-202, Method 106<br>High Frequency<br>MIL-STD-202, Method 204<br>Thermal Shock MIL-STD-202, Method 107, Condition B Vibration<br>Mechanical Shock MIL-STD-202, Method 213, Condition A Resistance to MIL-STD-202, Method 210, Test Condition B<br>Soldering Heat<br>Vibration MIL-STD-202, Method 201<br>Solderability JESD22-B102E Method 1<br>Vibration, MIL-STD-202, Method 204, Condition D Terminal Strength AEC Q200-006<br>High Frequency for SMD<br>Dissolution of Board Flex AEC Q200-005<br>IPC/ECA/JEDEC J-STD-002, Condition D<br>Metallization<br>Electrical<br>3 Temperature Electrical<br>Terminal Strength IEC 60127-4 Characterization<br>Dimensions Part Marking System<br>3.200 ± .1778 Amp Code Marking Code<br>[.126 ± .007] .500 F<br>.750 G<br>1.75 L<br>1.000 1.63 + .10/ -.20<br>[.039] [.064 + .004/ -.008] 002. N<br>02.5 O<br>003. P<br>03.5 R<br>004. S<br>.835 +/-.015 005. T<br>[.0329 +/-.006]<br>007. W<br>TERMINATION 008. X<br>Part Numbering System<br>0440 008. W R A<br>0.520 ± .200[.020 ± .008] SERIES<br>AMP CODE<br>1.000 1.500<br>[.039] [.059]<br>QUANTITY CODE<br>1.800 W = 3000 pcs<br>[.071]<br>PACKING CODE<br>3.500 R = Reel Pack<br>[.138]<br>AEC-Q200 QUALIFIED<br>Packaging<br>Quantity and<br>Packaging Option Packaging Specification Quantity<br> Packaging Code<br>8mm Tape and Reel EIA-481, IEC 60286, Part 3 3000 WRA<br>**----- End of picture text -----**<br> © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 11/01/18
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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