Littelfuse 0232001.MXP Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0232001.MXP is a 1 A, 250 V AC/DC glass cartridge fuse with a 5mm x 20mm form factor. This medium-blow fuse is designed for applications requiring overcurrent protection in electrical circuits and requires a compatible fuse holder for installation. The part is active in production with full RoHS3 compliance and international approvals. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same fuse category and package specifications.

Substiute Parts

0232001.MXP

Littelfuse Inc.In Stock: 12330232001.MXP Datasheet

Current PartRFQ

0234001.MXP

Littelfuse Inc.In Stock: 18700234001.MXP Datasheet

Parametric EquivalentRFQ

MSC-1A

OptiFuseIn Stock: 1961MSC-1A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0232001.MXP are qualified based on strict equivalence across the following critical parameters:

• Current Rating: 1 A (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Medium Blow (exact match required)
• Breaking Capacity: 100 A (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

All identified substitutes maintain these core electrical and mechanical specifications, ensuring direct compatibility in applications designed for the 0232001.MXP. Variations in secondary parameters such as melting I²t, DC cold resistance, and manufacturer-specific certifications do not affect substitutability within the defined scope.

Parameter Comparison

Engineering Selection Recommendations

Both 0234001.MXP and MSC-1A are direct substitutes for the 0232001.MXP based on matching electrical and mechanical specifications. Selection between alternatives should be based on the following factors:

0234001.MXP (Littelfuse Series 234): Maintains the same manufacturer as the primary part with expanded approval certifications including CSA, K-MARK, and UL. This option is suitable for applications requiring broader regulatory compliance across North American and international markets.

MSC-1A (OptiFuse Series MSC): Provides equivalent functionality with cULus and UL 248 certifications. This option is suitable for applications where OptiFuse qualification is acceptable and inventory availability is a consideration.

All three parts are active products with full RoHS3 compliance and REACH unaffected status, ensuring regulatory compliance in current manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can the 0234001.MXP be used as a direct replacement for the 0232001.MXP?

A: Yes. Both parts share identical current rating (1 A), voltage rating (250 V AC), package dimensions (5mm x 20mm), fuse type (cartridge, glass), response time (medium blow), and breaking capacity (100 A). They are mechanically and electrically interchangeable.

Q: Can the MSC-1A be used as a direct replacement for the 0232001.MXP?

A: Yes. The MSC-1A meets all critical electrical and mechanical specifications: 1 A current rating, 250 V AC voltage rating, 5mm x 20mm package, cartridge glass fuse type, medium blow response, and 100 A breaking capacity. It is a direct substitute.

Q: What is the difference between these substitute parts?

A: The primary differences are manufacturer identity and approval certifications. The 0234001.MXP is a Littelfuse product with CE, CSA, K-MARK, PSE, and UL approvals. The MSC-1A is an OptiFuse product with cULus and UL 248 approvals. Electrical performance parameters such as melting I²t and DC cold resistance vary slightly but do not affect substitutability within the defined application scope.

Q: Do these fuses require a specific holder?

A: All three parts are cartridge fuses that require a compatible 5mm x 20mm fuse holder for installation. The holder must be rated for 250 V AC and 1 A minimum.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The 0232001.MXP, 0234001.MXP, and MSC-1A are all RoHS3 compliant with MSL rating of 1 (unlimited moisture sensitivity level).