MDA-6/10-R Ceramic Fuse Cartridge: Equivalent & Substitute Parts

Part Overview

The MDA-6/10-R is a 600 mA, 250 V AC ceramic fuse cartridge manufactured by Eaton - Electronics Division. This slow-blow fuse is designed for applications requiring overcurrent protection in AC/DC circuits and operates within the 3AB, 3AG form factor (1/4" x 1-1/4"). The part maintains Active product status with 723 units in current inventory. Substitute parts are identified to support supply chain continuity, design flexibility, and regional availability requirements while maintaining equivalent electrical and mechanical performance.

Substiute Parts

MDA-6/10-R

Eaton - Electronics DivisionIn Stock: 812MDA-6/10-R Datasheet

Current PartRFQ

BK/MDA-6/10-R

Eaton - Electronics DivisionIn Stock: 964BK/MDA-6/10-R Datasheet

Parametric EquivalentRFQ

0326.600HXP

Littelfuse Inc.In Stock: 12200326.600HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MDA-6/10-R are qualified based on the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 600 mA
• Voltage Rating - AC: 250 V
• Fuse Type: Cartridge, Ceramic
• Response Time: Slow Blow
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4"
• Physical Dimensions: 0.250" Dia x 1.250" L (6.35mm x 31.75mm)
• Mounting Type: Requires Holder

Acceptable Variation Parameters:

• Manufacturer identity (Eaton vs. Littelfuse)
• Approval agency certifications (provided equivalent or superior coverage)
• DC voltage rating (when AC rating is maintained)
• Melting I²t characteristics (within application tolerance)
• DC cold resistance (minor variations acceptable)

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

MDA-6/10-R (Primary Part): Use as the primary selection when Eaton sourcing is preferred and full CE, CSA, UL certification is required. Current inventory of 723 units supports immediate availability.

BK/MDA-6/10-R (Eaton Equivalent): This part is electrically and mechanically identical to MDA-6/10-R with identical current rating, voltage rating, and physical dimensions. It is manufactured by the same supplier (Eaton - Electronics Division) and carries ROHS3 compliance. Higher inventory (950 units) provides improved availability. Use when Eaton continuity is required and approval agency certifications are not specified in the application requirement.

0326.600HXP (Littelfuse Alternative): This part meets all mandatory electrical parameters (600 mA, 250 V AC, slow-blow ceramic cartridge) and physical form factor requirements (3AB, 3AG, 1/4" x 1-1/4"). It carries CE, CSA, UL certification equivalent to the primary part. The 125 V DC rating provides additional capability for dual-voltage applications. Highest inventory availability (1157 units) supports supply chain resilience. Use when multi-source qualification is required or when Littelfuse supplier relationships are preferred. Note: Melting I²t of 3.9 differs from the primary part (0.2); verify application tolerance for thermal response characteristics.

Frequently Asked Questions (FAQ)

Q: Can BK/MDA-6/10-R be used as a direct replacement for MDA-6/10-R?

A: Yes. Both parts are manufactured by Eaton - Electronics Division and share identical electrical specifications (600 mA, 250 V AC), fuse type (ceramic cartridge), response time (slow-blow), and physical dimensions (0.250" Dia x 1.250" L). Both are ROHS3 compliant and Active products. The primary difference is inventory availability.

Q: What is the key difference between the Eaton MDA-6/10-R and the Littelfuse 0326.600HXP?

A: Both parts meet the core requirements: 600 mA current rating, 250 V AC voltage rating, ceramic cartridge type, slow-blow response, and 3AB/3AG form factor. The Littelfuse part adds a 125 V DC rating and carries equivalent CE, CSA, UL certifications. The melting I²t value differs (3.9 vs. 0.2), which affects thermal response time. Verify your application's thermal response requirements before substitution.

Q: Are all three parts compatible with the same holder?

A: Yes. All three parts conform to the 3AB, 3AG package specification with identical physical dimensions (0.250" Dia x 1.250" L / 6.35mm x 31.75mm). They are mechanically interchangeable in any holder designed for this form factor.

Q: Which part should I select for a new design?

A: Selection depends on application requirements: (1) If Eaton sourcing is mandatory, use MDA-6/10-R or BK/MDA-6/10-R. (2) If multi-source qualification is required, use 0326.600HXP (Littelfuse). (3) If DC voltage protection is needed, use 0326.600HXP (125 V DC rated). (4) If thermal response time is critical, verify melting I²t requirements against the application specification before selecting between the 0.2 I²t (Eaton) or 3.9 I²t (Littelfuse) options.

Q: Do all parts carry the same regulatory certifications?

A: MDA-6/10-R and 0326.600HXP both carry CE, CSA, and UL certifications. BK/MDA-6/10-R does not list approval agencies in the provided data. Confirm certification requirements with your application specification before selecting BK/MDA-6/10-R.

Q: What is the significance of the melting I²t value?

A: Melting I²t characterizes the thermal energy required to melt the fuse element and is a measure of thermal response. MDA-6/10-R and BK/MDA-6/10-R have a melting I²t of 0.2, while 0326.600HXP has a melting I²t of 3.9. This indicates different thermal response profiles. Verify your circuit's inrush current and thermal tolerance specifications to ensure compatibility.