OTM10 Equivalent & Substitute Parts Reference

Part Overview

The OTM10 is a 250V 10A midget fuse manufactured by Mersen USA Newburyport-MA L.L.C., designed for electrical and industrial applications requiring fast-blow protection. This active product is ROHS3 compliant and maintains 1173 units in current inventory. Equivalent substitute parts are necessary to ensure supply chain continuity, support procurement flexibility across multiple manufacturers, and maintain operational availability when primary stock is depleted.

Substiute Parts

OTM10

Mersen USA Newburyport-MA L.L.C.In Stock: 1278OTM10 Datasheet

Current PartRFQ

0BLF010.T

Littelfuse Inc.In Stock: 11720BLF010.T Datasheet

DirectRFQ

BAF-10

Eaton - Bussmann Electrical DivisionIn Stock: 787BAF-10 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the OTM10 are qualified based on the following critical parameters:

• Current Rating: 10A (exact match required)
• Voltage Rating - AC: 250VAC (exact match required)
• Fuse Type: Cartridge (exact match required)
• Package / Case: 5AG midget format (exact match required)
• Response Time: Fast Blow (exact match required)

The substitute parts 0BLF010.T (Littelfuse Inc.) and BAF-10 (Eaton - Bussmann Electrical Division) meet all electrical and mechanical specifications for direct substitution with the OTM10. Both are active products with established inventory availability.

Parameter Comparison

Engineering Selection Recommendations

All three fuses meet the core electrical and mechanical requirements for 10A 250VAC fast-blow cartridge protection in 5AG midget format. Selection should be based on the following compliance and certification criteria:

For applications requiring ROHS3 compliance, the OTM10 (Mersen) and 0BLF010.T (Littelfuse) are suitable. Both maintain active product status with current inventory availability.

For applications requiring CE certification in addition to CSA and UR approvals, the BAF-10 (Eaton) provides the broadest regulatory coverage, though it does not meet ROHS3 compliance requirements.

The 0BLF010.T (Littelfuse) provides the highest breaking capacity specification at 10kA and maintains ROHS3 compliance, making it suitable for applications requiring both regulatory compliance and enhanced fault protection.

Frequently Asked Questions (FAQ)

Q: Can the 0BLF010.T and BAF-10 be used interchangeably with the OTM10?

A: Yes, both substitute parts meet the electrical and mechanical specifications for direct substitution. All three fuses are 10A 250VAC fast-blow cartridges in 5AG midget format requiring a holder for installation.

Q: What is the difference in breaking capacity between these fuses?

A: The 0BLF010.T (Littelfuse) specifies 10kA breaking capacity, while the BAF-10 (Eaton) specifies 200A. The OTM10 breaking capacity is not provided in the available data. Breaking capacity determines the maximum fault current the fuse can safely interrupt.

Q: Are there RoHS compliance differences I should consider?

A: The OTM10 and 0BLF010.T are both ROHS3 compliant. The BAF-10 is RoHS non-compliant. For applications subject to RoHS requirements, select either the OTM10 or 0BLF010.T.

Q: Do all three fuses require the same holder?

A: All three fuses are 5AG midget cartridges with identical physical dimensions (approximately 10mm diameter x 38mm length). They require a compatible 5AG fuse holder for installation.

Q: What certifications apply to each fuse?

A: The 0BLF010.T carries CSA and UR approvals. The BAF-10 carries CE, CSA, and UR approvals. Certification requirements for the OTM10 are not specified in the available data.