ATM-7-1/2 Equivalent & Substitute Parts

Part Overview

The ATM-7-1/2 is a 7.5 A automotive blade fuse rated for 32 V DC operation with fast-blow response characteristics. Manufactured by Eaton - Bussmann Electrical Division, this miniature blade fuse is designed for automotive electrical circuits requiring holder-based mounting. The part maintains active product status with robust inventory availability. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical specifications for direct circuit compatibility.

Substiute Parts

ATM-7-1/2

Eaton - Bussmann Electrical DivisionIn Stock: 907ATM-7-1/2 Datasheet

Current PartRFQ

BK/ATM-7-1/2

Eaton - Bussmann Electrical DivisionIn Stock: 13609BK/ATM-7-1/2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ATM-7-1/2 are qualified based on strict parametric equivalence across the following critical specifications:

• Current Rating: 7.5 A (exact match required)
• Voltage Rating - DC: 32 V (exact match required)
• Fuse Type: Automotive (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: Blade, Miniature (exact match required)
• Breaking Capacity @ Rated Voltage: 1 kA (exact match required)
• Physical Dimensions: 0.430" L x 0.150" W x 0.347" H (exact match required)
• Mounting Type: Requires Holder (exact match required)

The substitute part BK/ATM-7-1/2 meets all parametric requirements for direct substitution in circuits currently utilizing the ATM-7-1/2.

Parameter Comparison

Engineering Selection Recommendations

Both the ATM-7-1/2 and BK/ATM-7-1/2 maintain active product status and are manufactured by the same supplier. The BK/ATM-7-1/2 variant carries ROHS3 compliance certification, providing enhanced regulatory alignment for applications subject to stricter environmental standards. Both parts are classified under identical ECCN and HTSUS codes, confirming equivalent trade and export compliance profiles. Selection between these parts may be determined by specific regulatory requirements or supply chain availability, as all electrical and mechanical parameters are identical.

Frequently Asked Questions (FAQ)

Q: Can BK/ATM-7-1/2 be used as a direct replacement for ATM-7-1/2?

A: Yes. Both parts are parametrically equivalent across all critical specifications including current rating, voltage rating, fuse type, response time, package configuration, breaking capacity, and physical dimensions. Direct substitution is supported without circuit modification.

Q: What does the "BK/" prefix indicate on the substitute part number?

A: The BK/ prefix is a manufacturer designation within the Eaton - Bussmann Electrical Division product line. It does not alter the electrical or mechanical performance of the fuse. Both variants belong to the ATM series and maintain identical functional characteristics.

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

A: The ATM-7-1/2 is RoHS Compliant, while the BK/ATM-7-1/2 is ROHS3 Compliant. ROHS3 represents an updated compliance standard. Both parts meet environmental regulatory requirements; the choice depends on specific application or customer compliance mandates.

Q: Do these fuses require a specific holder type?

A: Both parts require a holder for installation. The miniature blade configuration is standardized, and either fuse will function in any automotive miniature blade fuse holder designed for this package type.

Q: What is the significance of the 1 kA breaking capacity rating?

A: The 1 kA breaking capacity indicates the maximum fault current the fuse can safely interrupt at its rated voltage (32 V DC). This specification ensures the fuse will reliably open under overcurrent conditions without component damage or safety hazard.