BK1/S505-6.3-R Eaton BK1/S505-6.3-R is a 6.3A, 250VAC slow-blow ceramic cartridge fuse in a 5x20mm package requiring a holder.
Mfr Part #:

BK1/S505-6.3-R

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton BK1/S505-6.3-R is a 6.3A, 250VAC slow-blow ceramic cartridge fuse in a 5x20mm package requiring a holder.
Total Stock: 1,338 pcs
$ Price Range: $0.67 - $1.81

BK1/S505-6.3-R Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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1,338 pcs
1338 pcs On Request 1 On Request On Request On Request On Request On Request

BK1/S505-6.3-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)
Fuse Type
Melting I²t
Mounting Type
Response Time
Voltage Rating

BK1/S505-6.3-R Description

Short technical summary and product information.

The Eaton BK1/S505-6.3-R is a 6.3A, 250VAC slow-blow (time-delay) ceramic cartridge fuse designed for overcurrent protection in a wide range of electronic applications. It features a 1.5kA interrupting rating at 250VAC and a melting I²t of 111 A²s, providing reliable performance under surge conditions.

 

The fuse is housed in a standard 5mm x 20mm ceramic body and requires a holder for installation. It is approved by multiple international agencies including BSI, CCC/CQC, CSA, cURus, IMQ, KC, PSE/JET, SEMKO, and VDE, ensuring broad compliance for global designs.

 

This slow-blow characteristic makes it suitable for circuits with high inrush currents, such as power supplies, motors, and capacitive loads, where the fuse must tolerate temporary current spikes without nuisance opening.

BK1/S505-6.3-R Quick Information

Product Type: Cartridge Fuse
Series: BK1/S505
Canonical Name: Eaton BK1/S505-6.3-R 6.3A 250VAC 5x20mm Ceramic Cartridge Fuse
Subcategory: Ceramic Fuse

BK1/S505-6.3-R Compliance

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

BK1/S505-6.3-R Estimated Pricing

Qty Low High
1+ $1.81 $1.81
5+ $1.50 $1.50
10+ $1.39 $1.39
50+ $1.15 $1.15
100+ $1.06 $1.06
250+ $0.95 $0.95
500+ $0.88 $0.88
1,000+ $0.81 $0.81
5,000+ $0.67 $0.67

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

BK1/S505-6.3-R Features

  • Rated 6.3A at 250VAC operation.
  • Slow-blow time-delay characteristic.
  • 1.5kA interrupting rating at 250VAC.
  • Standard 5x20mm ceramic cartridge package.
  • Multiple international safety agency approvals.

BK1/S505-6.3-R Applications

  • Overcurrent protection in power supply circuits.
  • Protection for motor and transformer circuits.
  • Suitable for capacitive inrush current applications.
  • Used in industrial and consumer electronics equipment.

BK1/S505-6.3-R FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the Eaton BK1/S505-6.3-R?

The current rating is 6.3 A.

What is the voltage rating of this fuse?

The voltage rating is 250 VAC.

What is the breaking capacity of the BK1/S505-6.3-R?

The breaking capacity is 1.5 kA at 250 VAC.

Is this a fast-acting or slow-blow fuse?

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

What is the package size of this fuse?

The fuse is a 5mm x 20mm cartridge.

What is the melting I²t value?

The melting I²t is 111 A²s.

What safety agency approvals does this fuse have?

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

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