# Fuse, Surface Mount, 8 A, Fast Acting, 32 V, 32 V, 1206 [3216 Metric], 440 Series

![Product image](https://novapart.co/image/farnell:3995137/)

**URL**: https://novapart.co/products/0440008.WR/fuse-surface-mount-8-a-fast-acting-32-v-1206-3216
**SKU**: 0440008.WR
**Manufacturer**: LITTELFUSE
**Category**: Circuit Protection || Fuses & Fuse Accessories || Fuses || SMD Fuses
**Price**: €0.5340
**Stock**: 1000+
**Lead Time**: 85 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| Fuse Current | 8A |
| Product Range | 440 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 |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3995137/)

**Surface Mount Fuses** Ceramic Fuse > 440 Series 

## 440 Series, 1206 High I2t Fuse 

## **RoHS Pb** ~~[_IOQHF Ad @,~~ 

## ~~**Description**~~ 

The 440 Series is a 100% Lead-free, RoHS compliant and Halogen-free fuse series designed specifically to provide over-current protection to circuits that operate under high working ambient temperatures up to 150ºC and high inrush currents. 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 • Suitable for both leaded from -55ºC to +150ºC and lead-free reflow / wave soldering 

- • 100% Lead-free, RoHS compliant and Halogen-free • Ultra high I[2] t values 

## ~~**Agency Approvals**~~ 

## ~~**Applications**~~ 

|AGENCY<br>AGENCY FILE NUMBER<br>AMPERE RANGE<br>E10480<br>0.25A - 8A<br>~~**Applications**~~<br>• LCD Displays<br>• Servers<br>• Scanners<br>• Data Modems<br>oF<br>us||
|---|---|
|29862<br>0.25A - 8A<br>• Notebook Computers<br>• Hard Disk Drives<br>G,||
|• Printers||
|~~**Electrical Characteristics for Series**~~<br>**Additional Information**||
|||
|% of Ampere<br>Rating<br>Ampere Rating<br>Opening Time at 25ºC<br>100%<br>0.25A - 8A<br>4 hours, Minimum<br>350%<br>0.25A - 8A<br>5 secs., Maximum<br>**Datasheet**<br>**Samples**<br>**Resources**<br>~~——~~||
|~~**Electrical Specif**~~**i**~~**cations by Item**~~||
|||
|Ampere<br>Rating<br>(A)<br>Amp<br>Code<br>Max.<br>Voltage<br>Rating (V)<br>Interrupting Rating<br>(AC/DC)1<br>Nominal<br>Resistance<br>(Ohms)2<br>Nominal<br>Melting I2t<br>(A2Sec.)3<br>Nominal Voltage<br>Drop At Rated<br>Current (V)4<br>Nominal Power<br>Dissipation At<br>Rated Current (W)<br>AgencyApprovals<br>Po<br>cus<br>@.||
|0.250<br>.250<br>125<br>50 A @ 125 V AC/DC<br>2.140<br>0.00649<br>0.5260<br>0.132<br>x<br>0.375<br>.375<br>125<br>1.216<br>0.01455<br>0.4993<br>0.187<br>x<br>0.500<br>.500<br>63<br>50 A @ 63 V AC/DC<br>0.8140<br>0.02642<br>0.4831<br>0.242<br>x<br>0.750<br>.750<br>63<br>50 A @ 63 V AC/DC<br>0.4624<br>0.09312<br>0.3983<br>0.299<br>x<br>1.00<br>001.<br>50<br>50 A @ 50 V DC<br>50 A @ 50 V AC<br>0.3096<br>0.21054<br>0.3457<br>0.346<br>x<br>1.25<br>1.25<br>50<br>0.2265<br>0.379<br>0.3240<br>0.405<br>x<br>1.50<br>01.5<br>50<br>0.1759<br>0.50652<br>0.3215<br>0.482<br>x<br>1.75<br>1.75<br>32<br>50 A @ 32 V AC/DC<br>0.0450<br>0.3312<br>0.0777<br>0.136<br>x<br>2.00<br>002.<br>32<br>0.0385<br>0.4326<br>0.0792<br>0.158<br>x<br>2.50<br>02.5<br>32<br>0.02850<br>0.8191<br>0.0747<br>0.187<br>x<br>3.00<br>003.<br>32<br>0.02252<br>1.232<br>0.0742<br>0.223<br>x<br>3.50<br>03.5<br>32<br>0.01845<br>1.789<br>0.0757<br>0.265<br>x<br>4.00<br>004.<br>32<br>0.01553<br>2.601<br>0.0709<br>0.284<br>x<br>5.00<br>005.<br>32<br>0.0120<br>4.761<br>0.0654<br>0.327<br>x<br>7.00<br>007.<br>32<br>0.00753<br>8.464<br>0.0696<br>0.487<br>x<br>8.00<br>008.<br>32<br>0.00634<br>12.95<br>0.0655<br>0.524<br>x<br>~~ye~~<br>~~| |~~<br>~~a~~<br>~~es~~<br>~~Po~~<br>~~a~~<br>~~(~~<br>~~| ot~~<br>~~Ds~~<br>~~| |~~<br>~~a~~<br>~~ee~~<br>~~| |~~<br>~~a~~<br>~~ee~~<br>~~| |~~<br>~~a~~<br>~~| tT~~<br>~~Ds~~<br>~~| |~~<br>~~a~~<br>~~ee~~<br>~~| |~~<br>~~a~~<br>~~es~~<br>~~| |~~<br>~~a~~<br>~~| ot~~<br>~~a~~<br>~~| |~~<br>~~a~~<br>~~ee~~<br>~~| |~~<br>~~a~~<br>~~es~~<br>~~Le~~<br>~~aes~~|X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X<br>X|



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. 

2. Nominal Resistance measured with < 10% rated current. 

3. Contact Littelfuse if application transient surges are less than 1 ms. 

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. 

4. Nominal Voltage Drop measured at rated current after temperature has stabilized. 

© 2018 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 12/13/18 

**Surface Mount Fuses** Ceramic Fuse > 440 Series 

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**----- Start of picture text -----**<br>
Temperature Rerating Curve Average Time Current Curves<br>140 100<br>120<br>100<br>10<br>80<br>60<br>1<br>40<br>-65     -45      -25       -5        15       35       55       75       95      115     135    155<br>TEMPERATURE (°C)<br>0.1<br>PERCENT OF RATING<br>TIME IN SECONDS<br>**----- End of picture text -----**<br>


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100<br>10<br>1<br>0.1<br>0.01<br>0.001<br>0.1  1.0 10.0 100.0 1000.<br>CURRENT IN AMPERES<br>TIME IN SECONDS<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 

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**----- Start of picture text -----**<br>
Soldering Parameters<br>Reflow Condition Pb-free assembly t P<br>T P<br>Critical Zone<br>- Temperature Min (Ts(min)) 150°C  Ramp-up TL to TP<br>Pre Heat - Temperature Max (Ts(max)) 200°C T S(max) T L t L<br>- Time (Min to Max) (ts) 60 – 180 seconds<br>Average Ramp-Up Rate (Liquidus Temp  3°C/second max. Preheat Ramp-down<br>(TL) to peak) T S(min)<br>TS(max) to TL - Ramp-up Rate 5°C/second max. t S<br>Reflow - Temperature (TL) (Liquidus) 217°C  25<br>- Temperature (tL) 60 – 150 seconds time to peak temperature(t 25ºC to peak) Time<br>Peak Temperature (TP) 260 [+0/-5]  °C<br>Time within 5°C of actual peak<br>10 – 30 seconds<br>Temperature (tp)<br>Ramp-down Rate 6°C/second max.<br>Time 25°C to peak Temperature (TP) 8 minutes max.<br>Do not exceed 260°C<br>Wave Soldering 260°C, 10 seconds max.<br>Temperature<br>**----- End of picture text -----**<br>


© 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/13/18 

**Surface Mount Fuses** Ceramic Fuse > 440 Series 

**==> picture [93 x 32] intentionally omitted <==**

## ~~**Product Characteristics**~~ 

||**Body:**Advanced Ceramic|
|---|---|
|**Materials**<br>**Moisture**<br>**Sensitivity Level**|**Terminations:**Ag / Ni / Sn (100% Lead-free)<br>**Element Cover Coating:**Lead-free Glass<br>IPC/JEDEC J-STD-020, Level 1|
|**Solderability**|IPC/ECA/JEDEC J-STD-002, Condition C|
|**Humidity Test**|MIL-STD-202, Method 103, Conditions D|
|**Resistance to**<br>**Solder Heat**|MIL-STD-202, Method 210, Condition B|



|**Moisture Resistance**|MIL-STD-202, Method 106|
|---|---|
|**Thermal Shock**|MIL-STD-202, Method 107,<br>Condition B|
|**Mechanical Shock**|MIL-STD-202, Method 213,<br>Condition A|
|**Vibration**|MIL-STD-202, Method 201|
|**Vibration,**|MIL-STD-202, Method 204,|
|**High Frequency**|Condition D|
|**Dissolution of**|IPC/ECA/JEDEC J-STD-002,|
|**Metallization**|Condition D|
|**Terminal Strength**|IEC 60127-4|



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Dimensions<br>3.200 ± .1778<br>[.126 ± .007]<br>1.000 1.63 + .10/ -.20<br>[.039] [.064 + .004/ -.008]<br>X<br>.8179 +.046/ -.076<br>[.0322 +.0018/ -.003]<br>TERMINATION<br>0.520 ± .200<br>[.020 ± .008]<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
Part Marking System<br>Amp Code Marking Code Amp Code Marking Code<br>.250 D 002. N<br>.375 E 02.5 O<br>.500 F 003. P<br>.750 G 03.5 R<br>001. H 004. S<br>1.25 J 005. T<br>01.5 K 007. W<br>1.75 L 008. X<br>Part Numbering System<br>0440 008.  W   R<br>SERIES<br>AMP CODE<br>QUANTITY CODE<br>W = 3000 pcs<br>PACKING CODE<br>R = Reel Pack<br>Packaging<br>Packaging  Packaging  Quantity &<br>Quantity<br>Option Specification  Packaging Code<br>8mm Tape  EIA-481, IEC 60286,  3000 WR<br>and Reel Part 3<br>**----- End of picture text -----**<br>


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1.000 1.500<br>[.039] [.059]<br>1.800<br>[.071]<br>3.500<br>[.138]<br>**----- End of picture text -----**<br>


**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. Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications.  Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/disclaimer-electronics.** 

© 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 12/13/18 



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- [Supplier page](https://es.farnell.com/littelfuse/0440008-wr/smd-fuse-fast-acting-8a-32vac/dp/3995137)
---

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