3ABP 10-R Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The 3ABP 10-R is a 10 A, 250 V AC ceramic cartridge fuse manufactured by Bel Fuse Inc., designed for through-hole mounting in 3AB/3AG form factor (1/4" x 1-1/4" axial). This part is classified as obsolete. Equivalent substitute parts from Littelfuse Inc. are available to maintain circuit protection functionality in applications requiring 10 A fast-blow ceramic fuses with 250 V AC rating and compatible mechanical dimensions.

Substiute Parts

3ABP 10-R

Bel Fuse Inc.In Stock: 15263ABP 10-R Datasheet

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0324010.HXP

Littelfuse Inc.In Stock: 11810324010.HXP Datasheet

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0324010.MXF47P

Littelfuse Inc.In Stock: 7020324010.MXF47P Datasheet

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0324010.MXP

Littelfuse Inc.In Stock: 62970324010.MXP Datasheet

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0324010.VXP

Littelfuse Inc.In Stock: 9240324010.VXP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

• Current Rating: 10 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Through Hole (exact match required)

All substitute parts listed below meet these core electrical and mechanical parameters. Additional parameters such as breaking capacity, melting I²t, and DC voltage rating may vary but do not affect substitution eligibility for AC-only applications.

Parameter Comparison

Engineering Selection Recommendations

All four Littelfuse substitute parts (0324010.HXP, 0324010.MXF47P, 0324010.MXP, 0324010.VXP) are functionally equivalent to the 3ABP 10-R for 250 V AC applications. Selection among these substitutes should be based on the following criteria:

Product Status: All substitute parts are classified as active, ensuring long-term availability and supply chain continuity compared to the obsolete 3ABP 10-R.

Compliance & Certifications: All substitutes maintain ROHS3 compliance and REACH unaffected status. The Littelfuse parts carry expanded approval agencies (UL certification included on all substitutes), providing broader regulatory acceptance across markets.

DC Voltage Capability: The 0324010.HXP, 0324010.MXP, and 0324010.VXP offer 125 V DC rating, providing enhanced functionality for mixed AC/DC applications. The 0324010.MXF47P does not specify DC voltage rating and is suitable for AC-only circuits.

Dimensional Tolerance: Littelfuse substitutes exhibit slightly larger dimensions (0.275" Dia x 1.288" L versus 0.272" Dia x 1.280" L). Verify mechanical clearance in existing fuse holders before selection.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 3ABP 10-R with any of the Littelfuse substitutes?

A: Yes, all four Littelfuse parts (0324010.HXP, 0324010.MXF47P, 0324010.MXP, 0324010.VXP) are direct substitutes for 250 V AC applications. They share identical current rating (10 A), voltage rating (250 V AC), fuse type (ceramic cartridge), response time (fast blow), and package form factor (3AB/3AG, 1/4" x 1-1/4" axial).

Q: What is the difference between 0324010.MXF47P and the other Littelfuse substitutes?

A: The 0324010.MXF47P does not specify a DC voltage rating, making it suitable for AC-only circuits. The 0324010.HXP, 0324010.MXP, and 0324010.VXP all carry 125 V DC rating, enabling use in applications with both AC and DC voltage exposure.

Q: Are there dimensional differences between the 3ABP 10-R and Littelfuse substitutes?

A: Yes. The 3ABP 10-R measures 0.272" Dia x 1.280" L (6.90mm x 32.50mm), while all Littelfuse substitutes measure 0.275" Dia x 1.288" L (6.99mm x 32.72mm). These differences are within typical mechanical tolerances for 3AB/3AG fuse holders but should be verified in applications with tight mechanical constraints.

Q: Do all substitutes carry the same regulatory approvals?

A: All substitutes are ROHS3 compliant and REACH unaffected. Littelfuse parts carry broader approval agency coverage (CE, CSA, PSE, UL) compared to the original 3ABP 10-R (CE, CSA, cURus, PSE). The 0324010.HXP and 0324010.MXP include K-MARK certification; 0324010.VXP includes KC certification; 0324010.MXF47P includes KTL certification.

Q: What is the melting I²t difference, and does it affect substitution?

A: The 3ABP 10-R has melting I²t of 316, while all Littelfuse substitutes have melting I²t of 206. This indicates faster thermal response in the Littelfuse parts. For standard 10 A fast-blow applications, this difference does not prevent substitution but may affect nuanced circuit protection timing in sensitive applications.

Q: Which substitute should I choose for new designs?

A: For new designs, select based on application voltage requirements. Use 0324010.MXP or 0324010.HXP for mixed AC/DC environments (both offer 250 V AC / 125 V DC). Use 0324010.MXF47P for AC-only circuits. All are active products with established supply chains.