Equivalent & Substitute Parts for BK/MDL-2/10-R

Part Overview

The BK/MDL-2/10-R is a 200 mA, 250 V AC/DC slow-blow glass cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for use in 3AB and 3AG holders with dimensions of 1/4" x 1-1/4" (6.35mm x 31.75mm). The part is currently active in production with 980 pieces in stock. Equivalent substitute parts are available from Littelfuse Inc. to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

BK/MDL-2/10-R

Eaton - Electronics DivisionIn Stock: 1075BK/MDL-2/10-R Datasheet

Current PartRFQ

0313.200MXP

Littelfuse Inc.In Stock: 15020313.200MXP Datasheet

Parametric EquivalentRFQ

0313.200VXP

Littelfuse Inc.In Stock: 8140313.200VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/MDL-2/10-R are determined by strict equivalence across the following electrical and mechanical parameters:

Current Rating: 200 mA Voltage Rating (AC): 250 V Fuse Type: Cartridge, Glass Response Time: Slow Blow Package / Case: 3AB, 3AG, 1/4" x 1-1/4" Breaking Capacity @ Rated Voltage: 35 A Mounting Type: Requires Holder Approval Agencies: CE, CSA, UL RoHS Status: ROHS3 Compliant

All substitute parts listed below meet these exact specifications and are therefore electrically and mechanically interchangeable with the main part number.

Parameter Comparison

Engineering Selection Recommendations

All three fuse cartridges listed are active products with full regulatory compliance. The BK/MDL-2/10-R (Eaton) and both Littelfuse alternatives (0313.200MXP and 0313.200VXP) carry identical electrical ratings, mechanical dimensions, and approval certifications (CE, CSA, UL). All parts are ROHS3 compliant and REACH unaffected.

The Littelfuse 313 series parts (0313.200MXP and 0313.200VXP) provide documented operating temperature ranges of -55°C to 125°C, whereas the Eaton part does not specify an operating temperature range in the provided data. Both Littelfuse alternatives exhibit slightly lower melting I²t values (0.27 versus 0.314) and higher DC cold resistance (6.59 versus 5.234 Ohms) compared to the Eaton part, though all parameters remain within the functional equivalence criteria for this fuse category.

Selection between these three parts may be based on manufacturer preference, inventory availability, or supply chain requirements, as all meet the specified electrical and mechanical substitution criteria.

Frequently Asked Questions (FAQ)

Q: Are the Littelfuse 0313.200MXP and 0313.200VXP parts truly interchangeable with the Eaton BK/MDL-2/10-R?

A: Yes. All three parts share identical current ratings (200 mA), voltage ratings (250 V AC), fuse types (cartridge, glass), response times (slow blow), package designations (3AB, 3AG), physical dimensions (1/4" x 1-1/4"), breaking capacities (35 A), and regulatory approvals (CE, CSA, UL). They are mechanically and electrically equivalent for direct substitution in 3AB and 3AG holders.

Q: What is the difference between the two Littelfuse substitute parts?

A: The 0313.200MXP and 0313.200VXP are both from the Littelfuse 313 series and share identical electrical and mechanical specifications. Both have the same current rating, voltage rating, dimensions, breaking capacity, and operating temperature range (-55°C to 125°C). No functional distinction exists between these two parts based on the provided parameters.

Q: Do these fuses require a specific holder type?

A: Yes. All three fuses are cartridge-type glass fuses that require a holder. They are designed for use in 3AB and 3AG holders with 1/4" x 1-1/4" dimensions. Direct installation without an appropriate holder is not possible.

Q: Are all three parts RoHS and REACH compliant?

A: Yes. The Eaton BK/MDL-2/10-R and both Littelfuse alternatives (0313.200MXP and 0313.200VXP) are ROHS3 compliant and REACH unaffected.

Q: What is the significance of the melting I²t and DC cold resistance differences?

A: The Eaton part exhibits a melting I²t of 0.314 and DC cold resistance of 5.234 Ohms, while both Littelfuse parts show a melting I²t of 0.27 and DC cold resistance of 6.59 Ohms. These minor variations reflect manufacturing differences between suppliers but do not affect functional equivalence for the specified 200 mA, 250 V slow-blow cartridge fuse application.

Q: What inventory levels are available for each part?

A: The Eaton BK/MDL-2/10-R has 980 pieces in stock. The Littelfuse 0313.200MXP has 1396 pieces in stock. The Littelfuse 0313.200VXP has 771 pieces in stock.