# FUSE, FAST ACTING, 70A, 75VDC, SMD

![Product image](https://novapart.co/image/farnell:3223002/)

**URL**: https://novapart.co/products/0881070.URF/fuse-fast-acting-70a-75vdc-smd
**SKU**: 0881070.URF
**Manufacturer**: LITTELFUSE
**Category**: Circuit Protection || Fuses & Fuse Accessories || Fuses || SMD Fuses
**Price**: €6.2500
**Stock**: 10+
**Lead Time**: 116 days (indicative)

## Description

Fuse Current:70A; Blow Characteristic:Fast Acting; Voltage Rating VAC:-; Voltage Rating VDC:75VDC; Fuse Case Style:11.2mm x 10mm x 6mm; Product Range:881F Series; B 16AH1048

## Specifications

| Parameter | Value |
|---|---|
| Fuse Current | 70A |
| Product Range | 881F Series |
| Fuse Case Style | 11.2mm x 10mm x 6mm |
| Voltage Rating Vac | - |
| Voltage Rating Vdc | 75V |
| Blow Characteristic | Fast Acting |
| Breaking Capacity Current Ac | - |
| Breaking Capacity Current Dc | 1.5kA |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3223002/)

Fuse **Datasheet** 

## **881F Series** High-Current Fast Opening SMD Fuse 

## A(L_1@ **RoHS Pb** HF Aldus 

## **Description** 

This high-current SMD fuse is a small, square, surface mount fuse that is designed as supplemental overcurrent protection for highcurrent circuits in various applications. This faster opening version enhances protection of the product from overload and short circuit current events in the application. 

## **Features & Benefits** 

## **Additional Information** 

- Available in 70A, 80A, and ■ Single fuse solution for high 100A ratings current applications 

- ■ High interrupting rating - ■ Suitable for a wide variety 1500A @ 75Vdc of voltage requirement and application 

- With faster opening time response ■ Guaranteed protection 

- ■ Surface mountable high against overload and short current fuse circuit current events 

- Robust and solderless fuse ■ Compatible with high volume design assembly requirements 

- Lead-free, Halogen-free, and ■ Enhanced product reliability RoHS compliant and performance 

- UL Recognized to ■ Conforms to IEC/EN 60127-1 UL/CSA/NMX 248-1 and IEC/EN 60127-7 

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Resources Accessories Samples<br>**----- End of picture text -----**<br>


## **Applications** 

- Blade Servers 

- Routers 

- High-power Battery Systems 

- Power Factor Correction (PFC) in high wattage power supplies 

- Power Distribution Units (PDUs) 

## **Agency Approvals** 

## **Electrical Characteristics for Series** 

|**Agency**<br>~~cWdus~~<br>A|**Agency File Number**<br>E71611<br>J50501628|**Ampere Range**<br>70A – 100A<br>70A – 100A|
|---|---|---|



|**% of Ampere Rating**<br>100%|**Opening Time**<br>1 Hour, Min.|
|---|---|
|200%|60 Seconds, Max.|



## **Electrical Specifications by Item** 

|**Ampere**<br>**Rating (A)**<br>70|**Amp Code**<br>070.|**Max Voltage**<br>**Rating (V)**<br>75Vdc|**Interrupting**<br>**Rating**<br>1500A @75Vdc|**Nominal Cold**<br>**Resistance**<br>**(mOhms)**<br>0.82|**Nominal Voltage**<br>**Drop * (mV)**<br>89|**Nominal**<br>**Melting ****<br>**I2t (A2sec)**<br>1050|**Agency Approvals**|**Agency Approvals**|
|---|---|---|---|---|---|---|---|---|
||||||||X<br>Alu|X<br>A|
|80|080.|||0.63|86|2000|X|X|
|100|100.|||0.52|96|4800|X|X|



- Nominal Voltage Drop measured at 100% rated Current.     ** Nominal Melting I[2] t measured at 1500A. 

## **Thermal Characteristics** 

|**Ampere Rating**<br>**In (A)**<br>70|**Typical Case Temperature Rise (°C) ***|**Typical Case Temperature Rise (°C) ***|**Typical Case Temperature Rise (°C) ***|
|---|---|---|---|
||**@ 50%In**<br>16|**@ 75%In**<br>38|**@ 100%In**<br>73|
|80|25|58|88|
|100|32|60|127|



- Typical values based on tests conducted with fuse mounted on FR-4 circuit board of 0.062” (1.6 mm) thickness with 6 oz. (210 µm) Cu. 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 05/31/21 

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Fuse **Datasheet** 

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## **881F Series** High-Current Fast Opening SMD Fuse 

## **Average Time Current Curves** 

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100<br>10<br>1<br>0.1<br>0.01<br>0.001<br>10 100 1000 10000<br>Current in Amperes<br>70A 80A 00A<br>Time in second<br>**----- End of picture text -----**<br>


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## **Temperature Re-rating Curve** 

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160<br>140<br>120<br>100<br>80<br>25°C<br>60<br>40<br>-60°C -40°C -20°C 0°C 20°C 40°C 60°C 80°C 100°C 120°C<br>-76°F -40°F -4°F 32°F 68°F 104°F 140°F 176°F 212°F 248°F<br>AMBIENT TEMPERATURE<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 25% for continuous operation. Example: For continuous operation at 70°C, the fuse should be re-rated as follows: I = (0.75)(0.90)In = (0.675)In 

**2.** The temperature re-rating curve represents nominal conditions.  For questions about the temperature rerating curve, please consult Littelfuse technical support assistance. 

## **Soldering Parameters** 

|**Refow Condition**|**Refow Condition**|Pb – Free assembly|
|---|---|---|
|**Pre Heat**|**- Temperature Min (Ts(min))**|150°C|
||**- Temperature Max (Ts(max))**|200°C|
||**- Time (Min to Max) (ts)**|60 – 180 secs|
|**Average ramp**|**up rate (Liquidus Temp (TL) to peak**|5°C/second max.|
|**TS(max) to TL - Ramp-up Rate**||5°C/second max.|
|**Refow**|**- Temperature (TL) (Liquidus)**|217°C|
||**- Temperature (tL)**|60 – 150 seconds|
|**Peak Temperature (TP)**||260+0/–5°C|
|**Time within 5°C of actual peak 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|



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t P<br>T P<br>Critical Zone<br>Ramp-up TL to TP<br>T L<br>T S(max) 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>


© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 05/31/21 

**7** 

Fuse **Datasheet** 

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## **881F Series** High-Current Fast Opening SMD Fuse 

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Dimensions<br>Units in mm (inch)<br>11.2<br>(0.440“)<br>6.8<br>6.0 6.3 (0.267“)<br>(0.236“) (0.248“) 6.4<br>(0.252“)<br>1.6 10.0<br>(0.062") 12.5 (0.393“)<br>(0.492“)<br>3.0<br>(0.118")<br>10.0<br>(0.393“)<br>8.0<br>(0.314“)<br>6 oz. (210µm) minimum Cu layer<br>Recommended Pad Layout<br>**----- End of picture text -----**<br>


## **Part Numbering System** 

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## **Product Characteristics** 

Body: Thermoplastic, RTI 150°C **Materials** Terminations: Tin-plated Copper Brand logo, Voltage Rating, ‘F’ (Faster **Product Marking** Opening Time), and Ampere Rating **Operating Temperature[1  2]** -55° to +100°C with proper derating 

## **Notes:** 

**1.** Based on loading at 75% of ampere rating when mounted using recommended pad layout. 

**2.** Usage outside of stated operating temperature range requires testing in application. 

Maintain case temperature below 150°C in application. 

|**Thermal Shock**|MIL-Std 202 Method 107<br>Test Condition B (-65°C to 125°C, 5<br>cycles).|
|---|---|
|**Moisture Resistance**|MIL-Std 202 method 106<br>High Humidity (90-98%RH), Heat<br>(65°C)|
|**Vibration**|MIL-STD-202,Method 201(10-55 Hz)|
|**Mechanical Shock**|MIL-STD-202, Method 213,<br>Test Condition I<br>(100 G’s peak for 6 milliseconds)|
|**Resistance to Solder Heat**|<br>MIL-Std 202 Method 210<br>Test Condition B (10sec at 260°C)|
|**Solderability**|MIL-STD-202 Method 208|
|**MSL Test**|Level 1 J-STD-020|
|**Salt Fog**|MIL-Std 202 Method 101<br>Test Condition B (5% NaCL solution,<br>48 hours exposure)|



## **0881 100. U R   F** 

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**----- Start of picture text -----**<br>
Series<br>Amp Code [*]<br>Refer to Electrical<br>Specifications table<br>Quantity code<br>U = 500 Pieces<br>Packaging code<br>R = Tape and Reel<br>F = Faster<br>Opening time<br>*Example:<br>80 amp product is 088080.UR<br>(100 amp product shown above)<br>**----- End of picture text -----**<br>


## **Packaging** 

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Quantity &<br>Packaging Option Packaging Specification Quantity<br> Packaging Code<br>24mm Tape and Reel EIA-481 Rev. D (IEC 60286-3) 500 UR<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. 

© 2021 Littelfuse, Inc. Specifications are subject to change without notice. Revised: GD. 05/31/21 

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## Links

- [View this product on Novapart](https://novapart.co/products/0881070.URF/fuse-fast-acting-70a-75vdc-smd)
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- [Supplier page](https://es.farnell.com/littelfuse/0881070-urf/fuse-fast-acting-70a-75vdc-smd/dp/3223002)
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