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Eaton Bussmann BKS52020R Fast-Acting Ceramic Tube Fuse

The EATON BUSSMANN BK-S520-20-R is a fast-acting ceramic tube fuse offering reliable overcurrent protection in a compact 5mm x 20mm form factor. Suitable for a wide range of applications including data center server power supplies, intelligent commercial buildings, and telecom power supplies, this fuse provides robust protection for sensitive electronic equipment. Available with axial or cartridge leads and a 420 Vac rating, the BK-S520-20-R ensures efficient and safe operation. It is RoHS compliant, demonstrating a commitment to environmental responsibility. Its nickel/silver plated brass end construction enhances durability and performance.

Authorized Distributors
Source:Newark
Part No:BK-S520-20-R
Stock:92
Inv Date:06-11-2026
Price: Unit price: $6.08
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Source:DigiKey
Part No:BK-S520-20-R
Stock:111
Inv Date:06-11-2026
Price: Unit price: $5.75
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Source:DigiKey
Part No:BK/S520-20-R
Stock:111
Inv Date:06-11-2026
Price: Unit price: $5.75
Buy/RFQ:
Part No:BK-S520-20-R
Stock:0
Inv Date:06-12-2026
Price: Unit price: $4.78
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Part No:BK/S520-20-R
Stock:0
Inv Date:06-11-2026
Price: Unit price: $5.61
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Part No:BK/S520-20-R
Stock:0
Inv Date:06-12-2026
Price: Unit price: $2.84
Buy/RFQ:
Part No:BK/S520-20-R
Stock:0
Inv Date:06-12-2026
Price: Unit price: $2.84
Buy/RFQ:

Eaton Bussmann BKS52020R Fast-Acting Ceramic Tube Fuse Specifications:

  • Current Rating: 20A
  • Voltage Rating: 420 Vac
  • Interrupting Rating: 200/1500 A at 420/250 Vac
  • DC Cold Resistance: 5 mΩ
  • Typical Melting I2t: 420 A2s
  • Typical Voltage Drop: 205 mV
  • Operating Temperature: -55 °C to +125 °C
  • Storage Temperature: -55 °C to +125 °C
  • Agency Recognition: UR (Pending), TUV (Pending)
  • Physical Size: 5 mm x 20 mm
  • Lead Type: Axial/Cartridge
  • Construction: Nickel/silver plated brass end construction

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Frequently Asked Questions

Where can I buy Eaton Bussmann BKS52020R?

You can click on the BUY or RFQ button to purchase BKS52020R from an authorized Eaton Bussmann distributor.

How do I troubleshoot issues or seek technical support for part BKS52020R?

You can download the BKS52020R datasheet or visit the Eaton Bussmann website for support.

Who is the manufacturer of BKS52020R?

Eaton Bussmann

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