Equivalent & Substitute Parts for MDQ-1/10

Part Overview

The MDQ-1/10 is a 100 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 maintains active product status and carries CSA and UL approvals. Equivalent substitute parts are available from multiple manufacturers to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

MDQ-1/10

Eaton - Electronics DivisionIn Stock: 778MDQ-1/10 Datasheet

Current PartRFQ

BK/MDL-1/10-R

Eaton - Electronics DivisionIn Stock: 1204BK/MDL-1/10-R Datasheet

Parametric EquivalentRFQ

0313.100HXP

Littelfuse Inc.In Stock: 10630313.100HXP Datasheet

Parametric EquivalentRFQ

0313.100MXP

LittelfuseIn Stock: 24110313.100MXP Datasheet

Parametric EquivalentRFQ

0313.100VXP

Littelfuse Inc.In Stock: 8810313.100VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MDQ-1/10 is determined by strict equivalence across the following parameters:

• Current Rating: 100 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Breaking Capacity @ Rated Voltage: 35 A (exact match required)
• Mounting Type: Requires Holder (exact match required)

All substitute parts listed below meet these criteria and are therefore electrically and mechanically interchangeable with the MDQ-1/10 in applications requiring this specific fuse configuration.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with established regulatory approvals. The MDQ-1/10 carries CSA and UL certifications. Substitute parts BK/MDL-1/10-R, 0313.100HXP, 0313.100MXP, and 0313.100VXP carry CE, CSA, and UL certifications, providing equivalent or expanded compliance coverage.

Selection between the main part and substitutes may be based on:

• Manufacturer preference: Eaton - Electronics Division (MDQ-1/10, BK/MDL-1/10-R) or Littelfuse (0313.100HXP, 0313.100MXP, 0313.100VXP)
• Inventory availability: Stock levels vary across part numbers
• Regulatory requirements: All parts meet CSA and UL standards; Littelfuse parts and BK/MDL-1/10-R include CE certification
• RoHS and REACH compliance: Littelfuse parts and BK/MDL-1/10-R provide documented RoHS3 compliance and REACH unaffected status

Frequently Asked Questions (FAQ)

Q: Can the MDQ-1/10 be directly replaced with BK/MDL-1/10-R?

A: Yes. Both parts are manufactured by Eaton - Electronics Division and share identical electrical and mechanical specifications: 100 mA current rating, 250 V AC voltage rating, slow-blow response, 3AB/3AG package, and 35 A breaking capacity. Physical dimensions and holder requirements are identical.

Q: Are Littelfuse parts 0313.100HXP, 0313.100MXP, and 0313.100VXP interchangeable with the MDQ-1/10?

A: Yes. All three Littelfuse parts meet the same electrical and mechanical specifications as the MDQ-1/10. They are rated for 100 mA at 250 V AC, feature slow-blow response, fit 3AB/3AG holders, and have identical physical dimensions of 0.250" Dia x 1.250" L.

Q: What is the difference between the Littelfuse substitute parts 0313.100HXP, 0313.100MXP, and 0313.100VXP?

A: These three Littelfuse parts share identical electrical and mechanical specifications. Differences, if any, relate to internal construction characteristics or manufacturing variants not specified in the provided parameters. All three are functionally equivalent for the MDQ-1/10 application.

Q: Do all substitute parts require the same holder as the MDQ-1/10?

A: Yes. All substitute parts are specified for 3AB and 3AG holders with dimensions of 1/4" x 1-1/4". No holder modifications or changes are required when substituting between these parts.

Q: What certifications do the substitute parts carry?

A: BK/MDL-1/10-R carries CE, CSA, and UL certifications. All Littelfuse parts (0313.100HXP, 0313.100MXP, 0313.100VXP) carry CE, CSA, and UL certifications. The original MDQ-1/10 carries CSA and UL certifications.

Q: Are there any DC voltage considerations for these fuses?

A: The MDQ-1/10 is rated for 250 V AC/DC operation. All substitute parts are similarly rated for AC/DC operation at 250 V, making them suitable for both AC and DC circuit applications.

Q: Can these fuses be used in applications requiring different current ratings?

A: No. All parts in this equivalency group are rated for 100 mA only. Applications requiring different current ratings require different fuse part numbers.