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BK1/S505-1-R Eaton BK1/S505-1-R is a 1A 250VAC cartridge ceramic fuse with slow blow response, in a 5x20mm package requiring a holder.
Mfr Part #:

BK1/S505-1-R

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton BK1/S505-1-R is a 1A 250VAC cartridge ceramic fuse with slow blow response, in a 5x20mm package requiring a holder.
Total Stock: 5,000 pcs
$ Price Range: $0.64 - $1.74

BK1/S505-1-R Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
5,000 pcs
5000 pcs On Request 1 On Request On Request On Request On Request On Request

BK1/S505-1-R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Breaking Capacity
Breaking Capacity @ Rated Voltage
Current Rating
Current Rating (Amps)
Fuse Type
Melting I²t
Mounting Type
Package / Case
Response Time
Size / Dimension
Voltage Rating

BK1/S505-1-R Description

Short technical summary and product information.

The Eaton BK1/S505-1-R is a 1A 250VAC cartridge ceramic fuse designed for overcurrent protection in a variety of electronic circuits. It features a slow blow (time-delay) characteristic, making it suitable for applications with inrush currents that would otherwise blow a fast-acting fuse.

 

This fuse has a breaking capacity of 1.5kA at rated voltage and a melting I²t of 1.28 A²s. It is housed in a standard 5mm x 20mm ceramic body and requires a holder for mounting. The fuse is approved by multiple agencies including BSI, CCC/CQC, CSA, cURus, IMQ, KC, PSE/JET, SEMKO, and VDE.

 

The BK1/S505-1-R is part of Eaton's S505 series and is marked as RoHS3 compliant and REACH unaffected, though these compliance statuses are unverified.

BK1/S505-1-R Quick Information

Product Type: Cartridge Ceramic Fuse
Series: S505
Canonical Name: Eaton BK1/S505-1-R Cartridge Ceramic Fuse, 1A 250VAC, Slow Blow, 5x20mm
Subcategory: Ceramic Fuse

BK1/S505-1-R Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BK1/S505-1-R Estimated Pricing

Qty Low High
1+ $1.74 $1.74
5+ $1.44 $1.44
10+ $1.33 $1.33
50+ $1.10 $1.10
100+ $1.02 $1.02
250+ $0.91 $0.91
500+ $0.84 $0.84
1,000+ $0.78 $0.78
5,000+ $0.64 $0.64

Estimated market price range - modelled values for guidance only, not live distributor offers.

BK1/S505-1-R Features

  • Rated 1A at 250VAC operation.
  • Slow blow time-delay response.
  • Ceramic cartridge 5x20mm body.
  • Breaking capacity of 1.5kA.
  • Multiple agency approvals worldwide.

BK1/S505-1-R Applications

  • Overcurrent protection in power supplies.
  • Protection for lighting and ballast circuits.
  • Used in industrial control equipment.
  • Suitable for consumer electronics with inrush.

BK1/S505-1-R FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the BK1/S505-1-R fuse?

The BK1/S505-1-R is rated for 1 A.

What is the voltage rating of this fuse?

The voltage rating is 250 VAC.

What is the breaking capacity of the BK1/S505-1-R?

The breaking capacity is 1.5 kA at rated voltage.

What is the response time of this fuse?

The fuse has a slow blow (time-delay) response.

What is the package size of the BK1/S505-1-R?

The fuse is in a 5mm x 20mm cartridge package.

What is the melting I²t value?

The melting I²t is 1.28 A²s.

Which agencies have approved this fuse?

Approved by BSI, CCC/CQC, CSA, cURus, IMQ, KC, PSE/JET, SEMKO, and VDE.

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