Littelfuse 142.6185.5152 Equivalent & Substitute Parts

Part Overview

The Littelfuse 142.6185.5152 is a 15 A automotive blade fuse rated for 58 V DC operation with fast-blow response characteristics. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing system support and procurement. The fuse is designed for automotive applications requiring holder-based installation in ATO/ATC blade format.

Substiute Parts

142.6185.5152

Littelfuse Inc.In Stock: 874142.6185.5152 Datasheet

Current PartRFQ

BK/ATC-15

Eaton - Bussmann Electrical DivisionIn Stock: 1213BK/ATC-15 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Littelfuse 142.6185.5152 is determined by the following critical parameters:

• Current Rating: 15 A (exact match required)
• Package / Case: Blade, ATO/ATC (mechanical compatibility requirement)
• Response Time: Fast Blow (electrical performance characteristic)
• Breaking Capacity: 1 kA minimum (safety and protection requirement)
• Voltage Rating - DC: Minimum 58 V (operational envelope requirement)
• Approval Agency: UL or cULus certification (regulatory compliance)
• RoHS Status: ROHS3 Compliant (environmental compliance)

The Eaton - Bussmann Electrical Division BK/ATC-15 meets the current rating, package format, response time, breaking capacity, and compliance requirements. The voltage rating of 32 V DC on the substitute part represents a lower operational envelope; however, this part is manufacturer-recommended and maintains all other critical electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The Eaton - Bussmann Electrical Division BK/ATC-15 is the manufacturer-recommended substitute for the obsolete Littelfuse 142.6185.5152. Both components maintain identical current ratings, response characteristics, breaking capacity, and package format. The substitute part carries active product status with UL certification and ROHS3 compliance, ensuring regulatory alignment and supply chain availability. The voltage rating differential (32 V DC versus 58 V DC) reflects the substitute's operational specification and must be evaluated within the context of the specific application circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can the Eaton BK/ATC-15 be used as a direct replacement for the Littelfuse 142.6185.5152?

A: The Eaton BK/ATC-15 is the manufacturer-recommended substitute and shares identical current rating (15 A), response time (fast blow), package format (Blade, ATO/ATC), and breaking capacity (1 kA). Both components are ROHS3 compliant and carry appropriate regulatory certifications.

Q: What is the significance of the voltage rating difference between the two parts?

A: The Littelfuse part is rated for 58 V DC operation, while the Eaton substitute is rated for 32 V DC. The voltage rating defines the maximum operational envelope for the fuse. Application circuit voltage requirements must be evaluated to determine compatibility.

Q: Are there mechanical compatibility concerns between these parts?

A: Both components use the Blade, ATO/ATC package format and are designed for holder-based installation. Mechanical dimensions differ slightly (Littelfuse: 19.00mm x 5.00mm x 13.20mm; Eaton: 19.30mm x 5.25mm x 12.50mm), but both conform to ATO/ATC blade specifications for standard automotive fuse holders.

Q: What certifications apply to the substitute part?

A: The Eaton BK/ATC-15 carries UL certification and is ROHS3 compliant. The original Littelfuse part carries cULus certification. Both certifications meet automotive and industrial regulatory requirements.

Q: Why is the original Littelfuse part listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The Eaton substitute maintains active product status with established supply chain availability.