ATM-25 Equivalent & Substitute Parts

Part Overview

The ATM-25 is a 25A automotive blade fuse rated for 32V DC operation with fast-blow response characteristics. Manufactured by Eaton - Bussmann Electrical Division, this miniature blade fuse is designed for automotive electrical systems requiring holder-based mounting. The part maintains active product status with robust inventory availability. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when procurement from different inventory channels is required.

Substiute Parts

ATM-25

Eaton - Bussmann Electrical DivisionIn Stock: 1057ATM-25 Datasheet

Current PartRFQ

BK/ATM-25

Eaton - Bussmann Electrical DivisionIn Stock: 1018BK/ATM-25 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ATM-25 are qualified based on strict parametric equivalence across the following critical specifications:

• Current Rating: 25 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)
• Mounting Type: Requires Holder (exact match required)
• Breaking Capacity @ Rated Voltage: 1kA (exact match required)
• Physical Dimensions: 0.430" L x 0.150" W x 0.347" H (exact match required)

The identified substitute BK/ATM-25 meets all parametric requirements for direct substitution. Additional cross-reference part numbers listed under the BK/ATM-25 entry represent alternative manufacturer designations or internal catalog variations that maintain identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The BK/ATM-25 is a direct parametric equivalent to the ATM-25 and qualifies as a primary substitute. Both parts are manufactured by Eaton - Bussmann Electrical Division and maintain active product status. The BK/ATM-25 carries ROHS3 compliance designation, representing an updated RoHS standard compliance level compared to the base RoHS Compliant status of the ATM-25. Both parts are classified under ECCN EAR99 and share identical HTSUS coding, confirming regulatory and trade classification equivalence.

Selection between ATM-25 and BK/ATM-25 may be determined by inventory availability, procurement channel preference, or specific compliance documentation requirements for ROHS3 certification. Both parts are suitable for direct substitution in automotive electrical systems requiring 25A fast-blow fuse protection at 32V DC.

Frequently Asked Questions (FAQ)

Q: Can BK/ATM-25 be used as a direct replacement for ATM-25?

A: Yes. The BK/ATM-25 meets all parametric requirements for direct substitution, including current rating, voltage rating, response time, package type, and physical dimensions.

Q: What is the difference between RoHS Compliant and ROHS3 Compliant?

A: ROHS3 represents an updated RoHS standard compliance designation. Both designations confirm the part meets RoHS environmental compliance requirements. The ROHS3 designation on BK/ATM-25 indicates compliance with the current RoHS standard iteration.

Q: Are the physical dimensions identical between ATM-25 and BK/ATM-25?

A: Yes. Both parts share identical dimensions of 0.430" L x 0.150" W x 0.347" H (10.92mm x 3.81mm x 8.81mm), ensuring compatibility with existing holder-based mounting systems.

Q: What does "Requires Holder" mean for mounting type?

A: Both parts are designed for use with automotive fuse holders. The fuse blade inserts into a compatible holder assembly; the fuse itself does not mount directly to circuit boards or chassis.

Q: Are there any electrical performance differences between ATM-25 and BK/ATM-25?

A: No. Both parts are specified with identical electrical characteristics: 25A current rating, 32V DC voltage rating, fast-blow response time, and 1kA breaking capacity at rated voltage.