BK/MDA-4 The BK/MDA-4 is a 4A, 250VAC ceramic cartridge fuse with slow blow response. It comes in a standard 3AB/3AG (1/4" x 1-1/4") package and requires a holder for mounting.
Mfr Part #:

BK/MDA-4

Available from 1 distributors
Mfr Name: Eaton - Electronics Division
Eaton - Electronics Division
The BK/MDA-4 is a 4A, 250VAC ceramic cartridge fuse with slow blow response. It comes in a standard 3AB/3AG (1/4" x 1-1/4") package and requires a holder for mounting.
Total Stock: 30 pcs
$ Price Range: $1.75 - $4.08

BK/MDA-4 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
30 pcs
30 pcs On Request 1 On Request On Request On Request On Request On Request

BK/MDA-4 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/MDA-4 Description

Short technical summary and product information.

The BK/MDA-4 is a ceramic cartridge fuse manufactured by Eaton - Electronics Division. It is rated for 4A at 250VAC with a slow blow (time-delay) response characteristic, making it suitable for applications with inrush currents. The breaking capacity is 200A at 250VAC. The fuse has a melting I²t of 134 A²s. It is constructed with a ceramic body and comes in the standard 3AB/3AG package size (1/4" x 1-1/4"). This fuse requires a separate holder for mounting, as it is a cartridge type. The BK/MDA-4 is approved by CSA and UL. It is intended for overcurrent protection in various circuits, including power supplies, motors, and lighting ballasts.

BK/MDA-4 Quick Information

Product Type: Cartridge Fuse
Canonical Name: Eaton BK/MDA-4 Ceramic Cartridge Fuse, 4A, 250VAC, Slow Blow, 3AB/3AG (1/4" x 1-1/4")
Subcategory: Ceramic Cartridge Fuse

BK/MDA-4 Compliance

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

BK/MDA-4 Estimated Pricing

Qty Low High
20+ $4.08 $4.08
80+ $4.01 $4.01
100+ $3.77 $3.77
500+ $1.75 $1.75

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

BK/MDA-4 Features

  • Rated 4A at 250VAC.
  • Slow blow response for inrush currents.
  • Ceramic cartridge construction.
  • Breaking capacity of 200A.
  • CSA and UL approved.

BK/MDA-4 Applications

  • Overcurrent protection in power supplies.
  • Motor and transformer protection.
  • Lighting ballast protection.
  • General purpose circuit protection.

BK/MDA-4 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the current rating of the BK/MDA-4 fuse?

The current rating is 4A.

What is the voltage rating?

250VAC.

What is the breaking capacity?

200A at 250VAC.

What is the response time?

Slow blow (time-delay).

What package size is the BK/MDA-4?

3AB, 3AG (1/4" x 1-1/4").

What is the melting I²t value?

134 A²s.

What approvals does the BK/MDA-4 have?

CSA and UL.

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