BK/GDB-4A Eaton BK/GDB-4A is a 4A, 250VAC fast blow glass cartridge fuse in a 5mm x 20mm package. It is UL and VDE approved.
Mfr Part #:

BK/GDB-4A

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton BK/GDB-4A is a 4A, 250VAC fast blow glass cartridge fuse in a 5mm x 20mm package. It is UL and VDE approved.
Total Stock: 100 pcs
$ Price Range: $0.35 - $0.96

BK/GDB-4A 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
100 pcs
100 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

BK/GDB-4A 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

BK/GDB-4A Description

Short technical summary and product information.

The Eaton BK/GDB-4A is a 4 amp, 250 volt AC fast blow glass cartridge fuse. It features a 5mm x 20mm cylindrical body with end caps for use in a standard fuse holder. The fuse is designed for overcurrent protection in a variety of electronic and electrical circuits.

 

Key electrical specifications include a nominal current rating of 4A, a voltage rating of 250VAC, and a breaking capacity of 40A at rated voltage. The fast blow response time provides rapid interruption during overcurrent events. The melting I²t is rated at 22 A²s.

 

The fuse is constructed with a glass tube and requires a holder for mounting. It carries approvals from UL and VDE, indicating compliance with recognized safety standards.

BK/GDB-4A Quick Information

Product Type: Cartridge Fuse
Series: GDB
Canonical Name: Eaton BK/GDB-4A 4A 250V Fast Blow Cartridge Fuse
Subcategory: Glass Tube Fuse

BK/GDB-4A Compliance

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

BK/GDB-4A Estimated Pricing

Qty Low High
1+ $0.96 $0.96
5+ $0.79 $0.79
10+ $0.73 $0.73
50+ $0.61 $0.61
100+ $0.56 $0.56
300+ $0.49 $0.49
500+ $0.46 $0.46
1,000+ $0.43 $0.43
5,000+ $0.35 $0.35

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

BK/GDB-4A Features

  • Rated 4A at 250VAC operation.
  • Fast blow response for overcurrent protection.
  • 40A breaking capacity at rated voltage.
  • 5mm x 20mm glass cartridge package.
  • UL and VDE safety agency approved.

BK/GDB-4A Applications

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

BK/GDB-4A FAQs

5 frequently asked questions generated from this part’s specifications.
What is the current rating of the BK/GDB-4A?

The nominal current rating is 4A.

What is the voltage rating of this fuse?

The voltage rating is 250VAC.

What is the breaking capacity of the BK/GDB-4A?

The breaking capacity is 40A at rated voltage.

Is the BK/GDB-4A a fast blow or slow blow fuse?

It is a fast blow fuse.

What is the package size of this fuse?

The package is a 5mm x 20mm glass cartridge.

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