MCAS020.V Automotive Fuse - Equivalent & Substitute Parts

Part Overview

The MCAS020.V is a 20A automotive fuse manufactured by Littelfuse, designed for 32V DC applications with slow-blow response characteristics. This component is part of the MCASE™ series and requires a dedicated fuse holder for installation. The part is currently active in production with full RoHS3 compliance and REACH unaffected status. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the same product family, enabling flexible sourcing while preserving circuit protection performance.

Substiute Parts

MCAS020.V

LittelfuseIn Stock: 1216MCAS020.V Datasheet

Current PartRFQ

0695020.L

Littelfuse Inc.In Stock: 7750695020.L Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCAS020.V is determined by strict equivalence across the following critical parameters:

• Current Rating: 20 A (exact match required)
• Voltage Rating - DC: 32 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Fuse Type: Automotive (exact match required)
• Package / Case: Auto Link (exact match required)
• Breaking Capacity @ Rated Voltage: 1kA (exact match required)
• Operating Temperature Range: -40°C ~ 125°C (exact match required)
• Physical Dimensions: 0.421" L x 0.244" W x 0.689" H (exact match required)

The substitute part 0695020.L maintains identical electrical and mechanical specifications, differing only in packaging quantity (50-piece box versus 1-piece card) and series designation within the MCASE™ family. Both parts are manufactured by Littelfuse Inc. and carry equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both MCAS020.V and 0695020.L are active production components from Littelfuse with full RoHS3 compliance and REACH unaffected status. Selection between these parts should be based on packaging requirements: MCAS020.V is supplied in single-piece card packaging, while 0695020.L is supplied in 50-piece box packaging. Both parts maintain identical electrical performance, mechanical fit, and environmental operating specifications. The choice between these equivalents depends on procurement volume and inventory management requirements rather than technical performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can 0695020.L be used as a direct replacement for MCAS020.V in automotive circuits?

A: Yes. Both parts are electrically and mechanically identical, with matching 20A current rating, 32V DC voltage rating, slow-blow response, 1kA breaking capacity, and Auto Link package configuration. The only difference is packaging quantity.

Q: What determines whether a fuse can substitute for MCAS020.V?

A: Substitution requires exact equivalence across current rating, voltage rating, response time, fuse type, package case, breaking capacity, operating temperature range, and physical dimensions. Any deviation in these parameters disqualifies a part from substitution.

Q: Does packaging quantity affect electrical performance?

A: No. Packaging quantity (1-piece card versus 50-piece box) does not affect the electrical or mechanical performance of individual fuse elements. Both MCAS020.V and 0695020.L deliver identical circuit protection.

Q: Are both parts suitable for the same automotive applications?

A: Yes. Both parts carry identical compliance certifications (RoHS3 Compliant, REACH Unaffected) and operate across the same temperature range (-40°C ~ 125°C), making them suitable for equivalent automotive applications.

Q: What is the significance of the Auto Link package case?

A: Auto Link is the mechanical package configuration that determines physical fit within automotive fuse holders. Both MCAS020.V and 0695020.L use identical Auto Link dimensions (0.421" L x 0.244" W x 0.689" H), ensuring mechanical compatibility with the same holder assemblies.