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

BK/MDQ-1/2

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
Eaton BK/MDQ-1/2 is a 500mA 250VAC slow blow glass cartridge fuse in a 3AB 3AG package. It features a 35A breaking capacity and is CSA and UL approved.
Total Stock: 1,000 pcs
$ Price Range: $8.97 - $15.33

BK/MDQ-1/2 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
Non-Authorised Inventory information
1,000 pcs
1000 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

BK/MDQ-1/2 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
Mounting Type
Response Time
SVHC Present
Voltage Rating

BK/MDQ-1/2 Description

Short technical summary and product information.

The Eaton BK/MDQ-1/2 is a 500mA, 250VAC slow blow glass cartridge fuse designed for overcurrent protection in a variety of electronic and electrical applications. It is housed in the industry-standard 3AB 3AG package, measuring 0.250 inches in diameter and 1.250 inches in length (6.35mm x 31.75mm).

 

This fuse offers a breaking capacity of 35A at rated voltage, providing reliable fault interruption. The slow blow (time-delay) characteristic makes it suitable for circuits with inrush currents or transient surges, such as those found in power supplies and motor drives.

 

The BK/MDQ-1/2 requires a separate holder for mounting and is approved by CSA and UL, ensuring compliance with North American safety standards. It is commonly used in industrial control panels, instrumentation, and general-purpose electronic equipment.

BK/MDQ-1/2 Quick Information

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

BK/MDQ-1/2 Compliance

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

BK/MDQ-1/2 Estimated Pricing

Qty Low High
1+ $15.33 $15.33
5+ $12.72 $12.72
10+ $11.74 $11.74
50+ $9.73 $9.73
100+ $8.97 $8.97

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

BK/MDQ-1/2 Features

  • 500mA current rating for overcurrent protection.
  • 250VAC voltage rating for line voltage applications.
  • Slow blow response time for inrush tolerance.
  • 35A breaking capacity for reliable fault clearing.
  • CSA and UL approved safety certifications.

BK/MDQ-1/2 Applications

  • Used in industrial control panel protection.
  • Ideal for power supply input protection.
  • Suitable for motor drive circuit protection.
  • Applied in instrumentation and test equipment.

BK/MDQ-1/2 FAQs

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

The BK/MDQ-1/2 has a current rating of 500 mA.

What is the voltage rating of the BK/MDQ-1/2 fuse?

The voltage rating is 250 VAC.

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

The breaking capacity is 35A at rated voltage.

What is the response time of the BK/MDQ-1/2 fuse?

The BK/MDQ-1/2 is a slow blow (time-delay) fuse.

What package size is the BK/MDQ-1/2 fuse?

It comes in a 3AB, 3AG package, also known as 1/4 inch x 1-1/4 inch (6.35mm x 31.75mm).

What approvals does the BK/MDQ-1/2 fuse have?

It is approved by CSA and UL.

What type of fuse is the BK/MDQ-1/2?

It is a cartridge, glass fuse.

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