BK1/TCP70-30-R

Effective October 2020 Supersedes June 2017 

Technical Data 10250 

## TCP70 

## 70 Vdc Telecom fuses 

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## **Agency information** 

- cURus Recognized Guide JDXY2, JDXY8, File E19180 

## **Part number system/ordering** 

**BK1/ TCP705 -R** 

- BK1/ = 1000 fuses packed in a cardboard carton 

- TCP70- = Fuse series 

- 5 = Amp rating 

- -R = RoHS compliant 

## **Applications** 

- Telecommunication DC voltage circuits 

## **Product features:** 

- Designed to UL 248 and UL 248-14 

- Halogen free, lead free, RoHS compliant 

- Special design telecom circuit protection devices 

- High inrush current withstanding capability reduces nuisance openings 

- Fuseclip assembly method 

- Rugged ceramic construction 

- Excellent environmental integrity 

- One time positive disconnect 

- Economical solution with breaking characteristics similar to a circuit breaker 

Discontinued effective January 12, 2022 or until inventory is depleted. 

TCP70 70 Vdc Telecom fuses 

Technical Data 10250 Effective October 2020 

## **Product specifications** 

|**Part Number**|**Voltage**<br>**Rating**<br>**(Vdc)**|**Current**<br>**Rating**<br>**(A)**|**Interrupting**<br>**Rating**<br>**(A)1**|**Typical Cold**<br>**Resistance**<br>**(m**Ω**)2**|**Typical**<br>**Voltage Drop**<br>**(mV)**|**Typical**<br>**Pre-Arcing I2t**<br>**(A2s)3**|**Fuse Marking**<br>**Color**<br>**(text)**|
|---|---|---|---|---|---|---|---|
|TCP70-5-R|70|5|2500|34.5|235|50|Black|
|TCP70-6-R|70|6|2500|20.1|165|48|Black|
|TCP70-10-R|70|10|2500|10.5|148|165|Black|
|TCP70-15-R|70|15|2500|6.3|138|460|Black|
|TCP70-30-R|70|30|2500|2.05|84|4400|Black|



1. DC Interrupting Rating (Measured at rated voltage, time constant of less than 50 microseconds, battery source). 

2. DC Cold Resistance are measured at <10% of rated current in ambient temperature of +20 °C. 

3. Typical Pre-arcing I[2] t (A[2] s) are measured at 10In and rated current. 

## **Electrical characteristics** 

|**% of Amp Rating**|**Opening Time**|
|---|---|
|100%|4 hours minimum|
|150%|<60 min|
|200%|<2 min|



## **Environmental Data** 

## Discontinued effective January 12, 2022 or until inventory is depleted. 

- Operating temperature range: -55 °C to +125 °C (see derating curve) 

- Altitude:  <2000 m above sea level 

- Humidity: 90% at +20 °C, 50% at +40 °C non-condensing 

## **Reliability** 

- Thermal shock test — MIL-STD-202G Method 107 G air-to-air, 100 cycles 

- Temperature cycling — JESD22 Method A104, Condition B, 100 cycles 

- Mechanical shock test — MIL-STD-002 Method 213B, 50g 

- Mechanical vibration test — MIL-STD-202, Method 204D, condition D, 20 g, 10-500 Hz. 

## **Packaging** 

- 1000 fuses packed into a cardboard carton. Order with part number prefix BK1/. E.g., BK1/TCP70-5-R 

## **Recommended PCB fuseclips** 

- 1Axxxx Series for 6.3 mm (1/4”) fuses - see data sheet # 2131. 

## **Dimensions - mm** 

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25.2 ± 0.3<br>6.3  [+0.2]<br>5.6 ± 0.3 - 0.0<br>**----- End of picture text -----**<br>


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Construction<br>**----- End of picture text -----**<br>


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Not to scale<br>1 2 3 4 5<br>1. Tin-plated copper cap 4. Filler<br>2. Ceramic tube 5. Eyelet<br>3. Fuse element wire<br>**----- End of picture text -----**<br>


www.eaton.com/electronics 

2 

Technical Data 10250 Effective October 2020 

TCP70 70 Vdc Telecom fuses 

## **Time-current curves** 

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100,000<br>10,000<br>1000 Discontinued effective<br>January 12, 2022 or until<br>100<br>inventory is depleted.<br>10<br>5A<br>6A<br>10A<br>1<br>15A<br>30A<br>0.1<br>0.01<br>0.001<br>0.0001<br>1 10 100 1000 10000<br>Time in Seconds<br>**----- End of picture text -----**<br>


Current in Amps 

3 

Technical Data 10250 Effective October 2020 

TCP70 70 Vdc Telecom fuses 

## **I[2] t (A[2] s) Curves** 

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100,000,000<br>10,000,000<br>1,000,000<br>Discontinued effective<br>100,000<br>January 12, 2022 or until<br>5A<br>6A<br>inventory is depleted.<br>10A<br>15A<br>10,000<br>30A<br>1000<br>100<br>10<br>0.0001 0.001 0.01 0.1 1.0 10 100 1000 10,000 100,000<br>Time in Seconds<br>s) in Seconds<br>2<br>t (A<br>2I<br>**----- End of picture text -----**<br>


www.eaton.com/electronics 

4 

TCP70 70 Vdc Telecom fuses 

Technical Data 10250 Effective October 2020 

## **Thermal derating curve** 

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## Discontinued effective January 12, 2022 or until inventory is depleted. 

Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Compan . Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant inju y to the user. 

Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. 

## **Eaton** 

**Electronics Division** 1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com/electronics © 2020 Eaton All Rights Reserved Printed in USA Publication No. 10250 October 2020 

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