# FUSE, AXIAL LEAD, FAST ACTING, 15A, 250V

![Product image](https://novapart.co/image/farnell:3618299/)

**URL**: https://novapart.co/products/BK-S520-V-15-R/fuse-axial-lead-fast-acting-15a-250v
**SKU**: BK-S520-V-15-R
**Manufacturer**: EATON ELECTRONICS
**Category**: Circuit Protection || Fuses & Fuse Accessories || Fuses || PCB Fuses
**Price**: €3.2500
**Stock**: 200+
**Lead Time**: 121 days (indicative)

## Description

Fuse Current:15A; Voltage Rating VAC:250V; Product Range:S520 Series; Voltage Rating VDC:-; Blow Characteristic:Fast Acting; Fuse Case Style:Axial Leaded; Bre 09AJ8983

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3618299/)

Technical Data **10707** Effective October 2020 

## S520 

## 5 mm x 20 mm Fast-acting ceramic tube fuses 

## **Applications** 

- Data center server power supplies 

- Intelligent commercial buildings 

- Telecom power supplies 

- High-energy and power efficient applications (3-phase power supplies, inverters, and ballasts) 

## **Agency information** 

- UR Recognition (Pending) 

- TUV (Pending) 

## **Catalog symbol** 

## **Product features** 

   - See page 4 for ordering codes 

- 5 mm x 20 mm physical size 

- Fast-acting ceramic tube 

**BK/  S520-    V-  12-5 -  R** 

- 420 Vac rating 

- Nickel/silver plated brass end construction 

- Available in cartridge and axial lead 

## **Environmental compliance** 

**==> picture [58 x 29] intentionally omitted <==**

**----- Start of picture text -----**<br>
HALOGEN<br>Pb HF<br>FREE<br>SO<br>**----- End of picture text -----**<br>


**==> picture [51 x 76] intentionally omitted <==**

**----- Start of picture text -----**<br>
Packaging prefix<br>Product code<br>Option code<br>Ampere rating<br>RoHS compliant<br>**----- End of picture text -----**<br>


## **Packaging prefix** 

- Blank   5 pieces in one case (5 in tin, only for cartridge version) 

- BK/  100 pieces packed into a cardboard carton 

- BK1/  1000 pieces packed into a polybag (only cartridge version) 

- TR2/   1500pcs in one reel (only for axial lead version) 

## **Option code** 

- -V- (Axial leads - copper tinned wire with nickel-plated brass end caps) 

S520 5 mm x 20 mm Fast-acting ceramic tube fuses 

Technical Data 10707 Effective September 2020 

## **Electrical characteristics** 

|||**1.0ln min**||**2.1ln max**||**2.75ln min**||**2.75ln max**||**4.0ln min**||**4.0lnmax**||**10ln max**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**ln**<br>~~—O3o_w~~|~~—O3o_w~~|**hours**<br>~~—O3o_w~~|~~—O3o_w~~|**minutes**<br>~~—O3o_w~~|~~—O3o_w~~|**seconds**<br>~~—O3o_w~~|~~—O3o_w~~|**seconds**<br>~~—O3o_w~~|~~—O3o_w~~|**seconds**<br>~~—O3o_w~~|~~—O3o_w~~|**seconds**<br>~~—O3o_w~~|~~—O3o_w~~|**ms**<br>~~—O3o_w~~|
|8 A to 20 A||1||30||0.04||20||0.01||1||30|



## **Product specifications** 

|||||||||||**Typical**||||**Typical**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Part number5 **||||**Current rating**||**Voltage rating**||**Interrupting rating4**||**DC cold resistance1**||**Typical melting2**||**voltage drop3**|
|**Cartridge**<br>~~SS~~|~~SS~~|**Axial lead**<br>~~SS~~|~~SS~~|**(A)**<br>~~SS~~|~~SS~~|**(Vac)**<br>~~SS~~|**at 420/250 Vac  (A)**<br>**(mΩ )**<br>~~SS~~<br>~~SSS~~||||**l2t (A2s)**<br>~~SS~~<br>~~SS~~||~~SS~~|**(mV)**<br>~~SS~~|
|S520-8-R||S520-V-8-R||8||420||200/1500||9||104||102|
|S520-10-R||S520-V-10-R||10||420||200/1500||8||155||111|
|S520-12-5-R||S520-V-12-5-R||12.5||420||300/1500||8.1||160||180|
|S520-15-R||S520-V-15-R||15||420||300/1500||6.8||220||195|
|S520-16-R||S520-V-16-R||16||420||300/1500||6.1||280||200|
|S520-20-R||S520-V-20-R||20||420||300/1500||5||420||205|



1. Typical DC cold resistance measured at <10% of rated current 

2. Typical I[2] t measured at 10In and rated voltage 

3. Typical voltage drop measured at +20 °C at rated current 

4.  PF=1 for 420 Vac, PF= 0.7 to 0.8 for 250 Vac 

5. Part Number Definition: S520--x-xxx-R 

- S520 = Product code 

- x= Use “V” code for axial lead, leave blank for cartridge 

- xxx = Ampere rating -R suffix = RoHS compliant 

## **Dimensions–mm** 

## **Dimension A (ref):** 

- 0.80 mm for 8 A to 10 A 

- 1.00 mm for 12.5 A to 16 A 

- 1.20 mm for 20 A 

## **Dimension B:** 

- (BK) packaging- 38.1± 0.38 mm 

- (TR2) packaging- 15.8 ± 2 mm 

2 

www.eaton.com/electronics 

Technical Data 10707 Effective September 2020 

S520 5 mm x 20 mm Fast-acting ceramic tube fuses 

## **Time vs. current curve** 

**I[2] t vs. time curve** 

> www.eaton.com/electronics 3 

S520 5 mm x 20 mm Fast-acting ceramic tube fuses 

Technical Data 10707 Effective September 2020 

## **Temperature derating curve** 

**==> picture [249 x 150] intentionally omitted <==**

**----- Start of picture text -----**<br>
100%<br>90%<br>80%<br>70%<br>60% | f }<br>60 40 -20 0 20 40 60 80<br>Temperature in Degrees C<br>Factor of Rated current<br>**----- End of picture text -----**<br>


## **General specifications** 

Operating temperature: -55 °C to +125 °C (with derating) 

Storage temperature: -55 °C to +125 °C Humidity Test: MIL-STD-202G Method 103B, 85% ±2% relative humidity @ +85 ±2 °C, 72 hours Thermal shock: MIL-STD-202G Method 107G air-to-air, -55 °C -125 °C, 100 cycles Mechanical shock: MIL-STD-202G Method 213 A, 50 g, 11 ms Vibration: MIL-STD-202, Method 204D, condition D, 20 g, 10 - 500 Hz Solderability: J-STD-002, Method A1 Resistance to solder: MIL-STD-202, Method 210, +260 °C, 10 s Terminal strength: 10 N 

## **Ordering Codes** 

The ordering code is the Catalog part number replacing the “/” and “.” with a “-” When using the -V option code, the parentheses  “(“ “)” are not used. 

|**Catalog part number**||**Order part number**||**Catalog part number**||**Order part number**|
|---|---|---|---|---|---|---|
|BK/S520(-V)-8-R||BK-S520(-V)-8-R||S520-8-R||S520-8-R|
|BK/S520(-V)-10-R||BK-S520(-V)-10-R||S520-10-R||S520-10-R|
|BK/S520(-V)-12.5-R||BK-S520(-V)-12-5-R||S520-12.5-R||S520-12-5-R|
|BK/S520(-V)-15-R||BK-S520(-V)-15-R||S520-15-R||S520-15-R|
|BK/S520(-V)-16-R||BK-S520(-V)-16-R||S520-16-R||S520-16-R|
|BK/S520(-V)-20-R||BK-S520(-V)-20-R||S520-20-R||S520-20-R|
|BK1/S520(-V)-8-R||BK1-S520(-V)-8-R||TR2/S520-V-8-R||TR2-S520-V-8-R|
|BK1/S520(-V)-10-R||BK1-S520(-V)-10-R||TR2/S520-V-10-R||TR2-S520-V-10-R|
|BK1/S520(-V)-12.5-R||BK1-S520(-V)-12-5-R||TR2/S520-V-12.5-R||TR2-S520-V-12-5-R|
|BK1/S520(-V)-15-R||BK1-S520(-V)-15-R||TR2/S520-V-15-R||TR2-S520-V-15-R|
|BK1/S520(-V)-16-R||BK1-S520(-V)-16-R||TR2/S520-V-16-R||TR2-S520-V-16-R|
|BK1/S520(-V)-20-R||BK1-S520(-V)-20-R||TR2/S520-V-20-R||TR2-S520-V-20-R|



4 

www.eaton.com/electronics 

S520 5 mm x 20 mm Fast-acting ceramic tube fuses 

Technical Data 10707 Effective September 2020 

## **Wave solder profile (Axial lead only)** 

||||||tp||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||Tp|||||||||||
||**Temperature**|Tsmin<br>Tsmax<br>Tstyp||First wave||Second wave|||||||
|||||Preheat area||||||Cool down area|||
|||||||**Time**|————>||||||
|**Reference EN 61760-1:2006**|**Reference EN 61760-1:2006**||||||||||||
|**Profile feature**|||||||||**Standard SnPb solder**|||**Lead (Pb) free solder**|
|Preheat                    • Temperature min. (Tsmin)|Preheat                    • Temperature min. (Tsmin)|Preheat                    • Temperature min. (Tsmin)|||||||100 °C|||100 °C|
||• Temperature typ. (Tstyp)||||||||120 °C|||120 °C|
||• Temperature max. (Tsmax)||• Temperature max. (Tsmax)||||||130 °C|||130 °C|
||• Time (Tsminto T|to Tsmax) (ts)|||||||70 seconds|||70 seconds|
|Δ preheat tomax Temperature|||||||||150 °C max.|||150 °C max.|
|Peak temperature (TP)*|||||||||235 °C – 260 °C|||250 °C – 260 °C|
|Time at peak temperature (tp)|||||||||10 seconds max<br>5 seconds max each wave|||10 seconds max<br>5 seconds max each wave|
|Ramp-down rate|||||||||~ 2 K/s min|~ 2 K/s min||~ 2 K/s min|
||||||||||~3.5 K/s typ|~3.5 K/s typ||~3.5 K/s typ|
||||||||||~5 K/s max|||~5 K/s max|
|Time 25 °C to 25 °C|||||||||4 minutes|||4 minutes|



## **Manual solder** 

+350 °C (4-5 seconds by soldering iron), generally manual/hand soldering is not recommended 

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 Company. 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 injury 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. 10707 BU-MC17042 October 2020 

Eaton is a registered trademark. All other trademarks are property of their respective owners. 

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## Links

- [View this product on Novapart](https://novapart.co/products/BK-S520-V-15-R/fuse-axial-lead-fast-acting-15a-250v)
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- [Supplier page](https://es.farnell.com/bussmann-by-eaton/bk-s520-v-15-r/fuse-axial-lead-fast-acting-15a/dp/3618299)
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