# FUSE, SMD, 5A, 1206, FAST ACTING

![Product image](https://novapart.co/image/farnell:1822808/)

**URL**: https://novapart.co/products/0437005.WR./fuse-smd-5a-1206-fast-acting
**SKU**: 0437005.WR.
**Manufacturer**: LITTELFUSE
**Category**: Circuit Protection || Fuses & Fuse Accessories || Fuses || SMD Fuses
**Price**: €0.8870
**Stock**: 500+
**Lead Time**: 135 days (indicative)

## Description

Fuse Current:5A; Blow Characteristic:Fast Acting; Voltage Rating VAC:63VAC; Voltage Rating VDC:63VDC; Fuse Case Style:1206 ^3216 Metric]; Product Range:437 Series; Br 01P9243

## Specifications

| Parameter | Value |
|---|---|
| Voltage Rating Vac | 63VAC |
| Voltage Rating Vdc | 63V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1822808/)

**Surface Mount Fuses** Ceramic Fuse > 437 Series 

**RoHS P** ~~**b** [_IQHF Ads @,~~ 

## 437 Series – 1206 Fast-Acting Fu ~~se~~ 

## ~~**Description** [oT~~ 

This 100% Lead-free, RoHS compliant and Halogen-free fuse series has been designed specifically to provide over current protection to circuits that see high working ambient temperatures (up to 150ºC). 

The general design ensures excellent temperature stability and performance reliability. 

In addition to this, the high I²t values typical of the Littelfuse Ceramic Fuse family ensure high inrush current withstand capability. 

## ~~**Features** Lo~~ 

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

- Operating Temperature • Suitable for both leaded from -55ºC to +150ºC and lead-free reflow / wave soldering 

- • 100% Lead-free, HalogenFree and RoHS compliant 

|AGENCY<br>AGENCY FILE NUMBER|AMPERE RANGE|
|---|---|
|E10480<br>29862<br>cis<br>G,|0.250A ~ 8A<br>0.250A ~ 8A|
|||
|~~**Electrical Characteristics for Series**~~<br>% of Ampere<br>Rating<br>Ampere Rating<br>Opening Time at 25ºC<br>100%<br>250mA - 8A<br>4 hours, Minimum<br>250%<br>750mA - 8A<br>5 seconds, Maximum<br>350%<br>250mA -500mA<br>5 seconds, Maximum<br>350%<br>750mA - 8A<br>1 second, Maximum<br>~~Lo~~<br>~~oe~~||



## ~~**Applications** [Po~~ 

- LCD Displays 

   - Scanners 

- Servers • Data Modems • Printers 

- **Additional Information Datasheet Resources Samples** a 

**Samples** a 

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Additional Information<br>**----- End of picture text -----**<br>


|~~**Electrical Specif**~~**i**~~**cations by Item**~~<br>~~Lo~~|
|---|
|Ampere<br>Rating<br>(A)<br>Amp<br>Code<br>Max.<br>Voltage<br>Rating (V)<br>Interrupting Rating1<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>Agency Approvals<br>250mA<br>.250<br>125<br>50 A @ 125 V AC/DC<br>2.290<br>0.003<br>0.78<br>0.195<br>x<br>x<br>375mA<br>.375<br>125<br>1.330<br>0.010<br>0.60<br>0.225<br>x<br>x<br>500mA<br>.500<br>63<br>50 A @ 63 V AC/DC<br>0.908<br>0.018<br>0.52<br>0.260<br>x<br>x<br>750mA<br>.750<br>63<br>0.665<br>0.064<br>0.45<br>0.338<br>x<br>x<br>1A<br>001.<br>63<br>0.420<br>0.100<br>0.41<br>0.410<br>x<br>x<br>1.25A<br>1.25<br>63<br>0.318<br>0.256<br>0.40<br>0.500<br>x<br>x<br>1.5A<br>01.5<br>63<br>0.209<br>0.324<br>0.39<br>0.585<br>x<br>x<br>1.75A<br>1.75<br>63<br>0.071<br>0.075<br>0.27<br>0.473<br>x<br>x<br>2A<br>002.<br>63<br>0.058<br>0.225<br>0.20<br>0.400<br>x<br>x<br>2.5A<br>02.5<br>32<br>50 A @ 32 V AC/35 V DC<br>0.043<br>0.441<br>0.15<br>0.375<br>x<br>x<br>3A<br>003.<br>32<br>0.033<br>0.506<br>0.14<br>0.420<br>x<br>x<br>3.5A<br>03.5<br>32<br>0.027<br>0.777<br>0.13<br>0.455<br>x<br>x<br>4A<br>004.<br>32<br>0.022<br>1.024<br>0.13<br>0.520<br>x<br>x<br>5A<br>005.<br>32<br>0.0159<br>2.30<br>0.13<br>0.650<br>x<br>x<br>7A<br>007.<br>32<br>0.0100<br>5.02<br>0.13<br>0.910<br>x<br>x<br>8A<br>008.<br>32<br>0.008<br>7.23<br>0.13<br>1.040<br>x<br>x<br>~~ES ————E————~~<br>~~| |~~<br>~~a~~<br>~~a~~<br>~~a~~<br>~~|~~<br>~~|~~<br>~~a~~<br>~~|~~<br>~~|~~<br>~~a~~<br>~~|~~<br>~~|~~<br>~~a~~<br>~~== —_==>>=]~~<br>~~|~~<br>~~|~~<br>~~a~~<br>~~|~~<br>~~|~~<br>~~a~~<br>~~|~~<br>~~|~~<br>~~a~~<br>~~| |~~<br>~~a~~<br>~~|~~<br>~~|~~<br>~~a~~<br>~~| |~~<br>~~a~~<br>~~SS~~<br>~~eS S=~~<br>~~| |~~<br>~~a~~<br>~~ee~~<br>~~a~~|
|Notes:|
|1. AC Interrupting Rating tested at rated voltage with unity power factor. DC Interrupting<br>Rating tested at rated voltage with time constant < 0.8 msec.<br>Devices designed to carry rated current for 4 hours minimum. It is recommended that<br>devices be operated continuously at no more than 80% rated current. See “Temperature|
|2. Nominal Resistance measured with < 10% rated current.<br>Re-rating Curve”for additional re-rating information.|
|3. Contact Littelfuse if application transient surges are less than 1 ms.<br>Devices designed to be mounted with marking code facing up.|



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

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

© 2017 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 06/02/17 

**Surface Mount Fuses** Ceramic Fuse > 437 Series 

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Temperature Re-rating Curve<br>140<br>120<br>100 PSE EHH<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. Re-rating depicted in this curve is in addition to the standard re-rating of 20% for continuous operation. 

Example: 

For continuous operation at 75 degrees celsius, the fuse should be rerated as follows: 

- I = (0.80)(0.85)IRAT = (0.68)IRAT 

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Average Time Current Curves<br>**----- End of picture text -----**<br>


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10<br>1<br>0.1<br>0.01<br>0.001<br>0.1 1 10 100<br>CURRENT IN AMPERES<br>.250A .375A .500A .750A 1A 1.25A  1.5A 1.75A 2A 2.5A 3A3.5A 4A 5A 7A 8A<br>TIME IN SECONDS<br>**----- End of picture text -----**<br>


~~**Soldering Parameters**~~ 

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Reflow Condition Pb – free assembly<br>- Temperature Min (Ts(min)) 150°C<br>Pre Heat - Temperature Max (Ts(max)) 200°C<br>- Time (Min to Max) (ts) 60 – 180 seconds<br>Average Ramp-up Rate (Liquidus Temp<br>3°C/second max.<br>(TL) to peak)<br>TS(max) to TL - Ramp-up Rate 5°C/second max.<br>Reflow - Temperature (TL) (Liquidus) 217°C<br>- Temperature (tL) 60 – 150 seconds<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>=<br>Wave Soldering 260°C, 10 seconds max.<br>aie<br>**----- End of picture text -----**<br>


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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>


260°C, 10 seconds max. ~~ie~~ 

© 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 06/02/17 

**Surface Mount Fuses** Ceramic Fuse > 437 Series 

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Product Characteristics<br>Body:  Advanced Ceramic MIL-STD-202, Method 107,<br>Thermal Shock<br>Terminations:   Ag / Ni / Sn (100% Lead-free) Condition B<br>Materials<br>Element Cover Coating:  Ceramic/Lead-free  MIL-STD-202, Method 213,<br>Mechanical Shock<br>Glass Condition A<br>Moisture  Vibration MIL-STD-202, Method 201<br>IPC/JEDEC J-STD-020, Level 1<br>Sensitivity Level<br>Vibration,   MIL-STD-202, Method 204,<br>Solderability IPC/EIC/JEDEC J-STD-002, Condition B High Frequency Condition D<br>Humidity Test MIL-STD-202, Method 103, Condition D Dissolution of  IPC/EIC/JEDEC J-STD-002,<br>Metallization Condition D<br>Resistance to<br>MIL-STD-202, Method 210, Condition B<br>Solder Heat Terminal Strength IEC 60127-4<br>Moisture<br>MIL-STD-202, Method 106<br>Resistance Part Marking System<br>Amp Code Marking Code Amp Code Marking Code<br>Dimensions<br>.250 D 002. N<br>3.200 ± 0.1778 .375 E 02.5 O<br>[0.126 ± 0.007]<br>.500 F 003. P<br>.750 G 03.5 R<br>001. H 004. S<br>1.63 +0.10 / -0.2<br>[0.064 +0.004 / -0.008] 1.25 J 005. T<br>N 01.5 K 007. W<br>1.75 L 008. X<br>3.200 ± 0.1778<br>[0.126 ± 0.007]<br>1.000<br>[0.039] Part Numbering System<br>0437 008.  W   R<br>1.63 +0.10 / -0.2 SERIES<br>[0.064 +0.004 / -0.008]<br>H PACKING CODE<br>AMP CODE R = Reel Pack<br>QUANTITY CODE<br>W = 3000 pcs<br>0.8179 +0.046 / -0.076<br>[0.0322 +0.0018 / -0.003]<br>Packaging<br>0.520 ± 0.200<br>[0.020 ± 0.008]<br>Packaging  Packaging  Quantity &<br>Quantity<br>1.000 1.500 Option Specification Packaging Code<br>[0.039] [0.059]<br>8mm Tape  EIA-481, IEC  3000 WR<br>and Reel 60286-3<br>1.800<br>[0.071]<br>3.500<br>[0.138]<br>**----- End of picture text -----**<br>


**Disclaimer Notice - 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.** 

© 2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 06/02/17 



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- [Supplier page](https://es.farnell.com/littelfuse/0437005-wr/fuse-smd-5a-1206-fast-acting/dp/1822808)
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