MCAS020.XP Automotive Fuse - Equivalent & Substitute Parts

Part Overview

The MCAS020.XP is a 20A automotive fuse rated for 32V DC operation, manufactured by Littelfuse under the MCASE™ series. This slow-blow fuse is designed for automotive applications requiring a holder and features an Auto Link package configuration. The part is currently active in production with 815 units in stock. Substitute parts are identified when they maintain identical electrical and mechanical specifications, enabling direct replacement in automotive fuse holder applications without circuit redesign.

Substiute Parts

MCAS020.XP

LittelfuseIn Stock: 854MCAS020.XP Datasheet

Current PartRFQ

0695020.U

LittelfuseIn Stock: 11870695020.U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MCAS020.XP 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)
• Package / Case: Auto Link (exact match required)
• Breaking Capacity @ Rated Voltage: 1 kA (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)
• RoHS Compliance: ROHS3 Compliant (exact match required)

The substitute part 0695020.U meets all these criteria and is therefore classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both MCAS020.XP and 0695020.U are active production parts manufactured by Littelfuse with identical electrical and mechanical specifications. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for automotive applications. Selection between these parts may be based on inventory availability: MCAS020.XP has 815 units in stock, while 0695020.U has 1117 units in stock. Both parts are suitable for direct substitution in automotive fuse holder applications requiring 20A, 32V DC slow-blow protection.

Frequently Asked Questions (FAQ)

Q: Can 0695020.U replace MCAS020.XP in existing automotive circuits?

A: Yes. Both parts are parametric equivalents with identical current rating (20A), voltage rating (32V DC), response time (slow blow), package type (Auto Link), breaking capacity (1kA), and physical dimensions. Direct substitution is supported without circuit modification.

Q: Are there any differences in the Auto Link package between these parts?

A: No. Both parts use the identical Auto Link package configuration with matching physical dimensions of 0.421" L x 0.244" W x 0.689" H (10.70mm x 6.20mm x 17.50mm), ensuring compatibility with the same fuse holders.

Q: Do both parts meet the same compliance standards?

A: Yes. Both MCAS020.XP and 0695020.U are ROHS3 compliant and REACH unaffected, meeting current automotive regulatory requirements.

Q: What is the difference between MCASE™ and MCASE™ 695 series designations?

A: Both designations refer to Littelfuse MCASE™ automotive fuse series. The series designation does not affect electrical or mechanical compatibility for these parametric equivalents.

Q: Are there any temperature operating range differences?

A: No. Both parts operate across the identical temperature range of -40°C to 125°C, suitable for automotive underhood and interior applications.