ATM-2 Equivalent & Substitute Parts Reference

Part Overview

The ATM-2 is a 2A automotive blade fuse rated for 32V DC operation, manufactured by Eaton - Bussmann Electrical Division. This fast-blow fuse is designed for automotive electrical systems requiring miniature blade-type fuse holders. The part is currently active in production with 678 units in stock. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the same product series, ensuring direct interchangeability in automotive fuse applications.

Substiute Parts

ATM-2

Eaton - Bussmann Electrical DivisionIn Stock: 735ATM-2 Datasheet

Current PartRFQ

BK/ATM-2

Eaton - Bussmann Electrical DivisionIn Stock: 1647BK/ATM-2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATM-2 is based on strict equivalence across the following critical parameters:

• Current Rating: 2 A (exact match required)
• Voltage Rating: 32 V DC (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: 1 kA @ Rated Voltage (exact match required)
• Physical Dimensions: 0.430" L x 0.150" W x 0.347" H (exact match required)

The substitute part BK/ATM-2 meets all these criteria and is therefore a direct parametric equivalent. Both parts are manufactured by the same supplier within the same ATM series and maintain identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both ATM-2 and BK/ATM-2 are active production parts manufactured by Eaton - Bussmann Electrical Division. Both parts are RoHS compliant, with BK/ATM-2 meeting the ROHS3 standard. Selection between these parts may be based on inventory availability: ATM-2 has 678 units in stock, while BK/ATM-2 has 1572 units in stock. From an engineering compliance perspective, either part is suitable for automotive 2A 32V DC fuse applications requiring miniature blade-type holders. The BK/ATM-2 variant includes REACH Unaffected status documentation.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts are parametric equivalents with identical current rating (2A), voltage rating (32V DC), fuse type (automotive), response time (fast blow), package type (blade, miniature), breaking capacity (1kA), and physical dimensions (0.430" L x 0.150" W x 0.347" H). Direct substitution is supported.

Q: Are there any differences in compliance or certification between ATM-2 and BK/ATM-2?

A: Both parts are RoHS compliant. BK/ATM-2 carries ROHS3 Compliant status and includes REACH Unaffected documentation. Both parts carry the same ECCN (EAR99) and HTSUS (8536.10.0040) classifications.

Q: What mounting requirements apply to both parts?

A: Both ATM-2 and BK/ATM-2 require a miniature blade fuse holder for installation. They are not standalone components and must be inserted into an appropriate automotive fuse holder rated for miniature blade fuses.

Q: Do these parts have any temperature or environmental operating limitations?

A: Operating temperature specifications are not provided in the technical data for either part. Moisture Sensitivity Level (MSL) is listed as Not Applicable for both parts.

Q: What is the difference between "fast blow" and other fuse response types?

A: Fast blow fuses are designed to open quickly when current exceeds the rated value, providing rapid circuit protection. Both ATM-2 and BK/ATM-2 employ fast-blow characteristics suitable for automotive electrical system protection.