Equivalent & Substitute Parts for MDA-1/10-R Ceramic Fuse

Part Overview

The MDA-1/10-R is a 100 mA, 250 V AC/DC ceramic cartridge fuse manufactured by Eaton - Electronics Division. This fuse is designed for 3AB and 3AG holder applications with a 1/4" x 1-1/4" form factor and slow-blow response characteristics. The product is currently obsolete, making identification of active equivalent substitutes essential for ongoing system maintenance and component procurement. Substitute parts must maintain identical electrical ratings, mechanical dimensions, and holder compatibility to ensure direct replacement without circuit modification.

Substiute Parts

MDA-1/10-R

Eaton - Electronics DivisionIn Stock: 803MDA-1/10-R Datasheet

Current PartRFQ

0326.100MXP

Littelfuse Inc.In Stock: 7800326.100MXP Datasheet

DirectRFQ

0326.100VXP

Littelfuse Inc.In Stock: 10430326.100VXP Datasheet

DirectRFQ

0326.100HXP

Littelfuse Inc.In Stock: 11630326.100HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

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

Electrical Parameters:

• Current Rating: 100 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Response Time: Slow Blow (exact match required)

Mechanical Parameters:

• Fuse Type: Cartridge, Ceramic (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Size / Dimension: 0.250" Dia x 1.250" L (exact match required)
• Mounting Type: Requires Holder (exact match required)

Compliance Parameters:

• RoHS Status: ROHS3 Compliant (exact match required)

All three substitute parts—0326.100MXP, 0326.100VXP, and 0326.100HXP—manufactured by Littelfuse Inc. meet these criteria and are classified as direct equivalents. These parts are currently in active product status and maintain full compatibility with applications originally designed for the MDA-1/10-R.

Parameter Comparison

Engineering Selection Recommendations

The MDA-1/10-R is obsolete and no longer manufactured by Eaton. All three Littelfuse substitute parts (0326.100MXP, 0326.100VXP, 0326.100HXP) are active products with current manufacturing support and availability.

Selection Basis:

All substitute parts maintain identical electrical and mechanical specifications to the original MDA-1/10-R. The choice among the three Littelfuse equivalents depends on procurement availability and packaging requirements, as all three are functionally interchangeable for the specified application.

Compliance Status:

All substitute parts carry CE approval agency certification and ROHS3 compliance, meeting current regulatory requirements. The REACH Unaffected status of the Littelfuse parts indicates no additional material restrictions beyond RoHS compliance.

Availability:

Current inventory levels for substitute parts are: 0326.100MXP (709 Pcs), 0326.100VXP (965 Pcs), and 0326.100HXP (1109 Pcs), providing adequate supply for component replacement and system maintenance.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 0326.100MXP, 0326.100VXP, or 0326.100HXP be used as direct replacements for the MDA-1/10-R?

A: Yes. All three Littelfuse parts are direct equivalents. They match the MDA-1/10-R in current rating (100 mA), voltage rating (250 V AC), fuse type (ceramic cartridge), response time (slow blow), and mechanical dimensions (0.250" Dia x 1.250" L). They are compatible with 3AB and 3AG holders without modification.

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

A: The three Littelfuse parts (0326.100MXP, 0326.100VXP, 0326.100HXP) are electrically and mechanically identical. They differ only in internal construction or manufacturing variant designation. All three are functionally equivalent for the specified application.

Q: Are the substitute parts compatible with existing 3AB and 3AG fuse holders?

A: Yes. All substitute parts maintain the identical 1/4" x 1-1/4" (6.35mm x 31.75mm) form factor and are designed for 3AB and 3AG holder applications. No holder modification or replacement is required.

Q: What certifications do the substitute parts carry?

A: All Littelfuse substitute parts carry CE approval and are ROHS3 compliant. They are REACH Unaffected, indicating no additional material restrictions beyond RoHS requirements.

Q: Why is the MDA-1/10-R obsolete?

A: The MDA-1/10-R has been discontinued by Eaton - Electronics Division. The Littelfuse 326 series parts provide active, supported alternatives with identical specifications and full compatibility.