Equivalent & Substitute Parts for MDA-2/10-R Ceramic Fuse

Part Overview

The MDA-2/10-R is a 200 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 slow-blow response characteristic and dimensions of 0.250" diameter by 1.250" length. The product is currently obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for continued system support and component replacement.

Substiute Parts

MDA-2/10-R

Eaton - Electronics DivisionIn Stock: 1109MDA-2/10-R Datasheet

Current PartRFQ

0326.200HXP

Littelfuse Inc.In Stock: 7380326.200HXP Datasheet

DirectRFQ

0326.200MXP

Littelfuse Inc.In Stock: 14020326.200MXP Datasheet

DirectRFQ

0326.200VXP

Littelfuse Inc.In Stock: 8710326.200VXP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete MDA-2/10-R is based on strict equivalence across the following critical parameters:

Electrical Equivalence:

• Current Rating: 200 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Response Time: Slow Blow (exact match required)

Mechanical Equivalence:

• 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 Equivalence:

• RoHS3 Compliant (maintained across all substitutes)

All three substitute parts from Littelfuse Inc. (0326.200HXP, 0326.200MXP, 0326.200VXP) meet these criteria and are classified as active products with current manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

All three Littelfuse 326 series fuses (0326.200HXP, 0326.200MXP, 0326.200VXP) are direct functional equivalents to the obsolete MDA-2/10-R. Selection among these three active alternatives is based on the following factors:

Product Status: All substitute parts are active products with current manufacturing support, ensuring long-term availability and supply chain continuity compared to the obsolete MDA-2/10-R.

Compliance Certification: All substitutes maintain ROHS3 compliance and carry CE approval agency certification, meeting regulatory requirements for electronic component deployment.

Electrical Performance: The substitute parts provide documented breaking capacity of 100A at rated voltage and melting I²t of 0.213, offering enhanced specification transparency compared to the original part.

Inventory Availability: The three substitutes collectively provide 2,909 pieces in stock (0326.200HXP: 685 pcs, 0326.200MXP: 1,377 pcs, 0326.200VXP: 847 pcs), ensuring immediate procurement capability.

Mechanical Compatibility: All substitutes maintain identical physical dimensions and holder requirements (3AB, 3AG), ensuring direct installation in existing fuse holders without mechanical modification.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 0326.200MXP, 0326.200HXP, or 0326.200VXP be used as direct replacements for the MDA-2/10-R?

A: Yes. All three Littelfuse parts are direct functional equivalents. They share identical current rating (200 mA), voltage rating (250 V AC), response time (Slow Blow), package designation (3AB, 3AG), and physical dimensions (0.250" Dia x 1.250" L). They install directly into existing MDA-2/10-R fuse holders without modification.

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

A: The 0326.200MXP, 0326.200HXP, and 0326.200VXP are electrically and mechanically identical. They differ only in internal construction or manufacturing process variants within the Littelfuse 326 series. All three meet the same electrical specifications and certifications.

Q: Are the substitute parts RoHS compliant?

A: Yes. All three Littelfuse substitutes are ROHS3 compliant, matching the compliance status of the original MDA-2/10-R.

Q: What holder types are compatible with these fuses?

A: These fuses require 3AB or 3AG holder types. The 0.250" diameter by 1.250" length dimensions are standard for these holder classifications. Existing MDA-2/10-R holders are compatible with all three substitutes.

Q: Do the substitute parts have CE certification?

A: Yes. All three Littelfuse parts carry CE approval agency certification, providing regulatory compliance for European and international markets.

Q: What is the operating temperature range for the substitute parts?

A: The Littelfuse substitutes operate across -55°C to 125°C, providing extended temperature performance compared to the original part specification.

Q: Are these fuses suitable for AC and DC applications?

A: Yes. All parts are rated for 250 V AC/DC operation, supporting both alternating and direct current applications within the specified voltage range.