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BK1/S506-1-R Eaton BK1/S506-1-R is a 1A, 250VAC slow blow glass cartridge fuse in a standard 5x20mm package, requiring a holder for mounting.
Mfr Part #:

BK1/S506-1-R

Available from 2 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton BK1/S506-1-R is a 1A, 250VAC slow blow glass cartridge fuse in a standard 5x20mm package, requiring a holder for mounting.
Total Stock: 15,700 pcs
$ Price Range: $0.47 - $1.27

BK1/S506-1-R Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
13,000 pcs
13000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,700 pcs
2700 pcs On Request 1 On Request On Request On Request On Request On Request

BK1/S506-1-R Specifications Quick View

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

BK1/S506-1-R Description

Short technical summary and product information.

The Eaton BK1/S506-1-R is a 1A, 250VAC time-delay (slow blow) glass cartridge fuse in the industry-standard 5x20mm form factor. This fuse offers a breaking capacity of 35A at rated voltage and a typical melting I²t of 6.45 A²s, making it suitable for applications where temporary inrush currents must be tolerated without nuisance opening.

 

Electrical characteristics include a typical DC cold resistance of 0.0757 Ω and a typical voltage drop of 87.5 mV at rated current. The fuse is constructed with a glass tube and nickel-plated brass endcaps, with a mounting type that requires a separate fuse holder.

 

This component carries approvals from multiple international agencies including BSI, CCC, CSA, cURus, IMQ, PSE/JET, SEMKO, and VDE, indicating broad compliance for worldwide use. It is designed in accordance with IEC 60127-2/3 standards.

BK1/S506-1-R Quick Information

Product Type: Cartridge Fuse
Series: S506
Canonical Name: Eaton S506-1-R 1A 250VAC Slow Blow Glass Cartridge Fuse 5x20mm
Subcategory: Glass Tube Fuse

BK1/S506-1-R Compliance

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

BK1/S506-1-R Estimated Pricing

Qty Low High
1+ $1.27 $1.27
5+ $1.05 $1.05
10+ $0.97 $0.97
50+ $0.81 $0.81
100+ $0.74 $0.74
250+ $0.67 $0.67
500+ $0.62 $0.62
1,000+ $0.57 $0.57
5,000+ $0.47 $0.47

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

BK1/S506-1-R Features

  • Slow blow time-delay response characteristic.
  • Rated 1A at 250VAC with 35A breaking capacity.
  • Glass tube with nickel-plated brass endcaps.
  • 5x20mm standard cartridge fuse size.
  • Multiple international safety agency approvals.

BK1/S506-1-R Applications

  • Protection of power supply input circuits.
  • Overcurrent protection in lighting and appliances.
  • Industrial control panel fuse holder applications.

BK1/S506-1-R FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the BK1/S506-1-R fuse?

The fuse is rated for 1 A continuous current.

What is the voltage rating of this fuse?

The voltage rating is 250 VAC.

What is the breaking capacity of the BK1/S506-1-R?

The breaking capacity is 35 A at the rated voltage.

Is this a fast-acting or slow blow fuse?

This is a slow blow (time-delay) fuse.

What is the package size of this fuse?

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

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