BK/MDA-10-R-TC Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The BK/MDA-10-R-TC is a 10 A, 250 V AC/DC ceramic cartridge fuse manufactured by Eaton - Electronics Division. This slow-blow fuse is designed for applications requiring circuit protection in the MDA series and operates within the 3AB, 3AG form factor (1/4" x 1-1/4"). The part is currently active in production with 830 pieces in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications with identical electrical and mechanical requirements.

Substiute Parts

BK/MDA-10-R-TC

Eaton - Electronics DivisionIn Stock: 842BK/MDA-10-R-TC Datasheet

Current PartRFQ

BK/MDA-10-R

Eaton - Electronics DivisionIn Stock: 3158BK/MDA-10-R Datasheet

Parametric EquivalentRFQ

0326010.HXP

Littelfuse Inc.In Stock: 19270326010.HXP Datasheet

Parametric EquivalentRFQ

0326010.MXP

Littelfuse Inc.In Stock: 161170326010.MXP Datasheet

Parametric EquivalentRFQ

0326010.VXP

Littelfuse Inc.In Stock: 8780326010.VXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/MDA-10-R-TC is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 10 A
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Ceramic
• Response Time: Slow Blow
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4"
• Size / Dimension: 0.250" Dia x 1.250" L (6.35mm x 31.75mm)
• Mounting Type: Requires Holder

All identified substitute parts meet these mandatory parameters. Variations in breaking capacity, melting I²t, DC cold resistance, and approval agencies do not disqualify substitution when the above criteria are satisfied. The BK/MDA-10-R variant from Eaton differs only in packaging (Bulk vs. Tape/Reel), making it a direct parametric equivalent. Littelfuse 326 series parts (0326010.HXP, 0326010.MXP, 0326010.VXP) are cross-manufacturer equivalents meeting all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Eaton MDA Series (BK/MDA-10-R-TC and BK/MDA-10-R): Both Eaton parts are active products with identical electrical and mechanical specifications. The BK/MDA-10-R-TC is supplied in tape/reel packaging, while BK/MDA-10-R is supplied in bulk packaging. Selection between these two depends on procurement and assembly requirements. Both carry CSA and UL approvals.

Littelfuse 326 Series (0326010.HXP, 0326010.MXP, 0326010.VXP): All three Littelfuse variants are parametric equivalents meeting the mandatory electrical and mechanical criteria. These parts are supplied in bulk packaging and carry expanded approval certifications (CE, CSA, K-MARK, PSE, UL for HXP and MXP; CE, CSA, KC, PSE, UL for VXP). The Littelfuse parts feature higher breaking capacity (400 A vs. 200 A) and extended operating temperature range (-55°C to 125°C). Inventory availability is significantly higher for 0326010.MXP (16,029 pieces) compared to other variants.

Selection among substitute parts is based on packaging requirements, approval certifications needed for the application, and inventory availability. All parts are ROHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can BK/MDA-10-R-TC be directly replaced with BK/MDA-10-R?

A: Yes. Both parts are Eaton MDA series fuses with identical electrical ratings (10 A, 250 V AC), fuse type (ceramic cartridge), response time (slow blow), and mechanical form factor (3AB, 3AG, 1/4" x 1-1/4"). The difference is packaging: BK/MDA-10-R-TC is tape/reel; BK/MDA-10-R is bulk. Electrical performance and holder compatibility are identical.

Q: Are Littelfuse 326 series fuses (0326010.HXP, 0326010.MXP, 0326010.VXP) compatible with applications designed for BK/MDA-10-R-TC?

A: Yes. All Littelfuse 326 series parts meet the mandatory electrical and mechanical parameters: 10 A current rating, 250 V AC voltage rating, ceramic cartridge type, slow-blow response, and 3AB/3AG form factor (1/4" x 1-1/4"). They are mechanically and electrically interchangeable in holder assemblies designed for the BK/MDA-10-R-TC.

Q: What are the differences between 0326010.HXP, 0326010.MXP, and 0326010.VXP?

A: All three parts are identical in electrical and mechanical specifications. Differences exist only in approval certifications: 0326010.HXP and 0326010.MXP carry K-MARK approval; 0326010.VXP carries KC approval. Selection depends on regional regulatory requirements. Inventory levels differ: 0326010.MXP has the highest availability (16,029 pieces).

Q: Does the higher breaking capacity of Littelfuse parts (400 A vs. 200 A) affect substitution suitability?

A: No. Breaking capacity is not a substitution-limiting parameter when all mandatory electrical and mechanical criteria are met. Higher breaking capacity does not compromise performance in applications designed for 200 A breaking capacity. The Littelfuse parts remain valid substitutes.

Q: Are there temperature operating range differences between the main part and substitutes?

A: Yes. The BK/MDA-10-R-TC does not specify an operating temperature range. Littelfuse 326 series parts specify -55°C to 125°C. This extended range in Littelfuse parts does not disqualify substitution; it indicates broader environmental capability. Applications operating within standard industrial temperature ranges will experience no functional difference.

Q: Which substitute part should be selected for maximum inventory availability?

A: 0326010.MXP (Littelfuse) offers the highest inventory level at 16,029 pieces. This part meets all mandatory substitution criteria and carries CE, CSA, K-MARK, PSE, and UL approvals.