3ABP 10 Ceramic Fuse Equivalent & Substitute Parts

Part Overview

The 3ABP 10 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. Identifying equivalent substitute parts is necessary to maintain circuit protection functionality in applications where the original 3ABP 10 is no longer available or when design requirements call for active product alternatives with enhanced compliance status.

Substiute Parts

3ABP 10

Bel Fuse Inc.In Stock: 7693ABP 10 Datasheet

Current PartRFQ

3ABP 10-R

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

DirectRFQ

0324010.HXP

Littelfuse Inc.In Stock: 11810324010.HXP Datasheet

SimilarRFQ

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3ABP 10 is determined by the following mandatory parameters:

• Current Rating: 10 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in breaking capacity, melting I²t, DC cold resistance, and compliance certifications are secondary considerations that do not disqualify substitution but may influence selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

3ABP 10-R (Bel Fuse Inc.): Direct equivalent from the same manufacturer with identical electrical specifications and dimensions. Achieves ROHS3 compliance status, addressing the non-compliance limitation of the original 3ABP 10. Maintains the same melting I²t (316) and breaking capacity (200 A). Suitable for direct replacement in existing designs where manufacturer continuity is preferred.

0324010.HXP, 0324010.MXP, 0324010.VXP (Littelfuse Inc.): Active product alternatives with enhanced breaking capacity (750 A AC, 10 kA DC) and DC voltage rating (125 V). All achieve ROHS3 compliance. Dimensional variation is minimal (0.275" Dia x 1.288" L versus 0.272" Dia x 1.280" L). Melting I²t is lower (206 versus 316), indicating faster response characteristics. Suitable for applications requiring higher breaking capacity and DC circuit protection.

0324010.MXF47P (Littelfuse Inc.): Active product alternative with AC-only voltage rating (250 V AC, no DC rating specified). Breaking capacity is 750 A AC. ROHS3 compliant. Melting I²t is 206. Suitable for AC-only applications where DC protection is not required.

All substitute parts maintain the mandatory 10 A current rating, 250 V AC voltage rating, fast-blow response time, 3AB/3AG form factor, and through-hole mounting configuration. Selection should be based on application voltage requirements (AC-only versus AC/DC), breaking capacity needs, and compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 3ABP 10-R be used as a direct replacement for the 3ABP 10?

A: Yes. The 3ABP 10-R is electrically and mechanically equivalent to the 3ABP 10, with identical current rating (10 A), AC voltage rating (250 V), fuse type (ceramic cartridge), response time (fast blow), package (3AB/3AG), and dimensions. The primary difference is improved RoHS3 compliance status.

Q: What is the difference between the Bel Fuse 3ABP 10-R and the Littelfuse 0324010 series substitutes?

A: The 3ABP 10-R maintains the original melting I²t specification (316) and breaking capacity (200 A). The Littelfuse 0324010 series (HXP, MXP, VXP, MXF47P) offer higher breaking capacity (750 A AC or higher) and lower melting I²t (206), resulting in faster response characteristics. The Littelfuse parts also include DC voltage ratings (125 V DC) on most variants, whereas the original 3ABP 10 does not specify DC rating.

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

A: Minor dimensional variation exists. The 3ABP 10 measures 0.272" Dia x 1.280" L (6.90mm x 32.50mm). The Littelfuse 0324010 series measures 0.275" Dia x 1.288" L (6.99mm x 32.72mm). These differences are within typical mechanical tolerances for 3AB/3AG form factor fuses and do not prevent physical interchangeability in standard fuse holders.

Q: Which substitute should I select for an AC-only application?

A: For AC-only circuits, the 0324010.MXF47P is suitable, as it is rated for 250 V AC without a specified DC rating. Alternatively, any of the other substitutes (3ABP 10-R, 0324010.HXP, 0324010.MXP, 0324010.VXP) are also acceptable for AC-only use, as they all meet or exceed the AC voltage requirement.

Q: Which substitute should I select for an AC/DC application?

A: For applications requiring both AC and DC protection, select from the Littelfuse 0324010 series variants that specify DC voltage rating: 0324010.HXP, 0324010.MXP, or 0324010.VXP. All three are rated for 250 V AC and 125 V DC. The 3ABP 10-R does not specify a DC rating and should not be used in DC circuits.

Q: What does melting I²t indicate, and why does it differ between substitutes?

A: Melting I²t is a measure of the thermal energy required to melt the fuse element, expressed in ampere-squared seconds. The original 3ABP 10 has a melting I²t of 316, while Littelfuse substitutes have 206. A lower I²t indicates faster response to overcurrent conditions. Selection should be based on circuit protection requirements; faster-responding fuses (lower I²t) provide more sensitive protection, while slower-responding fuses (higher I²t) tolerate brief inrush currents.

Q: Are all substitute parts RoHS compliant?

A: The original 3ABP 10 is RoHS non-compliant. All identified substitutes (3ABP 10-R, 0324010.HXP, 0324010.MXF47P, 0324010.MXP, 0324010.VXP) are ROHS3 compliant, meeting current environmental and material restriction standards.

Q: What is the significance of product status (Obsolete versus Active)?

A: The original 3ABP 10 is classified as obsolete, indicating it is no longer manufactured or supported by Bel Fuse Inc. Active substitutes (all Littelfuse 0324010 series and 3ABP 10-R) are currently manufactured and supported, ensuring long-term availability and technical support. For new designs or long-term production requirements, active alternatives are recommended.