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Eaton Bussmann BKS520V125R Fast-Acting Ceramic Tube Fuse

The EATON BUSSMANN BK-S520-V-12-5-R is a fast-acting ceramic tube fuse designed for a variety of critical applications. With a current rating of 12.5A and a voltage rating of 420Vac, this fuse provides reliable overcurrent protection in data center server power supplies, intelligent commercial buildings, and telecom power supplies. Its nickel/silver plated brass end construction ensures durability, while its RoHS compliance meets environmental standards. Available in axial lead configuration, the BK-S520-V-12-5-R is a versatile solution for protecting sensitive electronic equipment.

Authorized Distributors
Source:Newark
Part No:BK-S520-V-12-5-R
Stock:386
Inv Date:06-11-2026
Price: Unit price: $1.54
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Source:Newark
Part No:BK/S520-V-12.5-R
Stock:1600
Inv Date:06-11-2026
Price: Unit price: $6.52
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Source:DigiKey
Part No:BK-S520-V-12-5-R
Stock:0
Inv Date:06-11-2026
Price: Unit price: $6.61
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Source:DigiKey
Part No:BK/S520-V-12-5-R
Stock:0
Inv Date:06-11-2026
Price: Unit price: $6.61
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Source:DigiKey
Part No:BK/S520-V-12.5-R
Stock:100
Inv Date:06-11-2026
Price: Unit price: $5.63
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Part No:BK-S520-V-12-5-R
Stock:448
Inv Date:06-12-2026
Price: Unit price: $6.03
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Part No:BK/S520-V-12.5-R
Stock:1600
Inv Date:06-12-2026
Price: Unit price: $4.02
Buy/RFQ:
Part No:BK/S520-V-12.5-R
Stock:1600
Inv Date:06-12-2026
Price: Unit price: $4.02
Buy/RFQ:

Eaton Bussmann BKS520V125R Fast-Acting Ceramic Tube Fuse Specifications:

  • Current Rating: 12.5A
  • Voltage Rating: 420 Vac
  • Interrupting Rating: 300/1500 A
  • DC Cold Resistance: 8.1 mΩ
  • Typical Melting I2t: 160 A2s
  • Typical Voltage Drop: 180 mV
  • Operating Temperature: -55 °C to +125 °C
  • Storage Temperature: -55 °C to +125 °C
  • RoHS Compliant: Yes
  • Physical Size: 5 mm x 20 mm
  • Construction: Nickel/silver plated brass end construction

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Frequently Asked Questions

Where can I buy Eaton Bussmann BKS520V125R?

You can click on the BUY or RFQ button to purchase BKS520V125R from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part BKS520V125R?

You can download the BKS520V125R datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of BKS520V125R?

Eaton Bussmann

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