BAF-3 Equivalent & Substitute Parts Reference

Part Overview

The BAF-3 is a 3A 250VAC fast-blow cartridge fuse manufactured by Eaton - Bussmann Electrical Division. This component is classified as an active product and is designed for electrical and industrial applications requiring overcurrent protection in AC circuits. The fuse operates at 250VAC with a breaking capacity of 100A at rated voltage and requires a compatible fuse holder for installation. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and functional characteristics align with the original specification, enabling direct replacement in applications where component availability or supply chain considerations necessitate alternative sourcing.

Substiute Parts

BAF-3

Eaton - Bussmann Electrical DivisionIn Stock: 1010BAF-3 Datasheet

Current PartRFQ

0BLF003.T

Littelfuse Inc.In Stock: 12010BLF003.T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BAF-3 is determined by strict alignment of the following parameters:

• Current Rating: 3A (exact match required)
• Voltage Rating: 250VAC (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 5AG, 10mm x 38mm Midget (exact match required)
• Physical Dimensions: 0.406" Dia x 1.500" L (exact match required)
• Fuse Type: Cartridge (exact match required)

The substitute part 0BLF003.T manufactured by Littelfuse Inc. meets all mandatory electrical and mechanical parameters. Both components are cartridge fuses with identical current and voltage ratings, fast-blow response characteristics, and 5AG package specifications with matching physical dimensions. Both require a compatible fuse holder for installation.

Parameter Comparison

Engineering Selection Recommendations

Both the BAF-3 and 0BLF003.T are active products with current manufacturing status. The BAF-3 carries CE, CSA, and UL approvals, while the 0BLF003.T carries CSA and UR approvals. The 0BLF003.T offers ROHS3 compliance, whereas the BAF-3 is RoHS non-compliant. The 0BLF003.T provides a higher breaking capacity of 10kA compared to the BAF-3's 100A at rated voltage. Selection between these components should be based on specific regulatory requirements, compliance mandates applicable to the end application, and approval agency certifications required by the system design or regional standards.

Frequently Asked Questions (FAQ)

Q: Can the 0BLF003.T directly replace the BAF-3 in existing installations?

A: Yes, the 0BLF003.T meets all mandatory electrical and mechanical specifications for direct substitution. Both components are 3A 250VAC fast-blow cartridge fuses in the 5AG package with identical physical dimensions and mounting requirements.

Q: What is the significance of the different breaking capacities (100A vs. 10kA)?

A: Breaking capacity indicates the maximum fault current the fuse can safely interrupt. The 0BLF003.T's higher breaking capacity of 10kA provides enhanced performance in high-fault-current environments. The BAF-3's 100A breaking capacity is suitable for applications with lower fault current levels.

Q: Are there differences in regulatory compliance between these parts?

A: Yes. The BAF-3 holds CE, CSA, and UL certifications and is RoHS non-compliant. The 0BLF003.T holds CSA and UR certifications and is ROHS3 compliant. Selection should align with the specific regulatory requirements of your application and target markets.

Q: Do both fuses require the same holder?

A: Both components are 5AG cartridge fuses with matching physical dimensions (0.406" Dia x 1.500" L). They require compatible 5AG fuse holders. Verify holder compatibility with the specific fuse holder model in your application.

Q: What is the DC cold resistance specification for the 0BLF003.T?

A: The 0BLF003.T has a DC cold resistance of 0.0696 Ohms. This specification is not provided for the BAF-3 in the available data.