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BK/MDL-1/2-R Eaton BK/MDL-1/2-R is a 500mA, 250VAC slow-blow glass cartridge fuse in a 3AB 3AG package. It features a 35A breaking capacity at 250V and is approved by CE, CSA, and UL.
Mfr Part #:

BK/MDL-1/2-R

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton BK/MDL-1/2-R is a 500mA, 250VAC slow-blow glass cartridge fuse in a 3AB 3AG package. It features a 35A breaking capacity at 250V and is approved by CE, CSA, and UL.
Total Stock: 387 pcs
$ Price Range: $0.48 - $1.31

BK/MDL-1/2-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
387 pcs
387 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

BK/MDL-1/2-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

BK/MDL-1/2-R Description

Short technical summary and product information.

The Eaton BK/MDL-1/2-R is a 500mA, 250VAC slow-blow (time-delay) glass cartridge fuse. It is designed for overcurrent protection in circuits that experience temporary inrush currents, allowing the fuse to tolerate these surges without nuisance opening while still protecting against sustained faults.

 

Electrical specifications include a current rating of 500 mA, a voltage rating of 250 VAC, and a breaking capacity of 35A at rated voltage. The fuse element is housed in a standard 3AB, 3AG, 1/4" x 1-1/4" glass tube, offering visual indication of the fuse state. The response time is slow-blow, which makes it suitable for applications with capacitive or inductive loads where start-up currents exceed normal operating levels.

 

The fuse requires a holder for mounting. It is compliant with CE, CSA, and UL approval agencies. The package size is 0.250" Dia x 1.250" L (6.35mm x 31.75mm).

BK/MDL-1/2-R Quick Information

Product Type: Cartridge, Glass Fuse
Series: MDL
Canonical Name: Eaton BK/MDL-1/2-R 500mA 250VAC Slow-Blow Glass Cartridge Fuse
Subcategory: Glass Tube Fuse

BK/MDL-1/2-R Compliance

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

BK/MDL-1/2-R Estimated Pricing

Qty Low High
1+ $1.31 $1.31
5+ $1.09 $1.09
10+ $1.00 $1.00
50+ $0.83 $0.83
100+ $0.77 $0.77
300+ $0.67 $0.67
500+ $0.64 $0.64
1,000+ $0.59 $0.59
5,000+ $0.48 $0.48

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

BK/MDL-1/2-R Features

  • 500mA current rating with slow-blow response.
  • 250VAC voltage rating with 35A breaking capacity.
  • CE, CSA, and UL approved for safety.
  • Standard 3AB 3AG glass cartridge package.
  • Melting I²t of 1.656 A²s for design integration.

BK/MDL-1/2-R Applications

  • Overcurrent protection in power supply circuits.
  • Motor and transformer inrush current protection.
  • Lighting ballasts and capacitive load circuits.
  • General-purpose industrial and consumer electronics.

BK/MDL-1/2-R FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the Eaton BK/MDL-1/2-R?

The current rating is 500 mA (0.5 A).

What is the voltage rating of this fuse?

The voltage rating is 250 VAC.

What is the breaking capacity of the BK/MDL-1/2-R?

The breaking capacity is 35A at 250 VAC.

What is the response time of this fuse?

The response time is slow-blow (time-delay).

What package size does the BK/MDL-1/2-R come in?

It uses the 3AB, 3AG, 1/4" x 1-1/4" (6.35mm x 31.75mm) package.

What approvals does this fuse have?

It is approved by CE, CSA, and UL.

What is the melting I²t of the BK/MDL-1/2-R?

The melting I²t is 1.656 A²s.

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