Littelfuse 0232002.MXP Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0232002.MXP is a 2A 250VAC glass cartridge fuse in 5mm x 20mm form factor, designed for circuit protection in AC and DC applications. This Active product requires a fuse holder for installation and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, and functional performance characteristics within the glass cartridge fuse category.

Substiute Parts

0232002.MXP

Littelfuse Inc.In Stock: 20730232002.MXP Datasheet

Current PartRFQ

0234002.MXBP

Littelfuse Inc.In Stock: 17750234002.MXBP Datasheet

Parametric EquivalentRFQ

0234002.MXP

Littelfuse Inc.In Stock: 24090234002.MXP Datasheet

Parametric EquivalentRFQ

MSC-2A

OptiFuseIn Stock: 3537MSC-2A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0232002.MXP is determined by the following mandatory parameters:

• Current Rating: 2 A (exact match required)
• Voltage Rating (AC): 250 V (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 @ Rated Voltage: 100A (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

All identified substitute parts meet these mandatory electrical and mechanical parameters. Variations in secondary parameters such as Melting I²t, DC Cold Resistance, and specific approval agencies do not disqualify substitution when primary parameters align.

Parameter Comparison

Engineering Selection Recommendations

All four parts—0232002.MXP, 0234002.MXBP, 0234002.MXP, and MSC-2A—are Active products meeting identical electrical and mechanical specifications for 2A 250VAC 5mm x 20mm glass cartridge fuses with medium blow response and 100A breaking capacity.

Selection between Littelfuse variants (0232002.MXP, 0234002.MXBP, 0234002.MXP) depends on regional compliance requirements. The 0234002.MXBP and 0234002.MXP variants carry broader approval coverage (CE, CSA, K-MARK, PSE, UL) compared to 0232002.MXP (CE, KC, PSE), making them suitable for applications requiring CSA or UL certification.

The OptiFuse MSC-2A variant meets cULus and UL 248 standards and is suitable for applications where UL certification is the primary requirement. Inventory availability should be considered: MSC-2A (3495 pcs), 0234002.MXP (2351 pcs), 0232002.MXP (1967 pcs), and 0234002.MXBP (1749 pcs).

Frequently Asked Questions (FAQ)

Q: Can 0234002.MXP be used as a direct replacement for 0232002.MXP?

A: Yes. Both parts share identical current rating (2A), voltage rating (250VAC), package dimensions (5mm x 20mm), response time (medium blow), and breaking capacity (100A). The primary difference is expanded approval agency coverage on the 0234002.MXP variant.

Q: What is the difference between 0234002.MXBP and 0234002.MXP?

A: Both parts are electrically and mechanically identical with matching current, voltage, package, and response characteristics. The designation difference reflects packaging or distribution channel variations within the Littelfuse 234 series.

Q: Is MSC-2A from OptiFuse compatible with Littelfuse fuse holders?

A: Yes. The MSC-2A maintains the same 5mm x 20mm physical dimensions and electrical specifications, ensuring mechanical and electrical compatibility with standard 5mm x 20mm fuse holders.

Q: Are there differences in response time between these substitutes?

A: No. All four parts are specified as medium blow fuses with identical response characteristics.

Q: Which substitute should be selected for UL-certified applications?

A: For UL certification requirements, select either 0234002.MXBP or 0234002.MXP (both carry UL approval), or MSC-2A (carries cULus and UL 248 approval).

Q: Do all substitutes meet RoHS3 compliance?

A: Yes. All four parts are RoHS3 compliant and REACH unaffected.