Littelfuse 023201.6MXF5P Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 023201.6MXF5P is a 1.6 A, 250 V AC/DC glass cartridge fuse in 5mm x 20mm form factor, designed for circuit protection in applications requiring medium-blow response characteristics. This Active product is held in stock with 676 units available. Equivalent and substitute parts are identified when identical electrical ratings, mechanical dimensions, and functional performance parameters are maintained across different manufacturers or product series.

Substiute Parts

023201.6MXF5P

Littelfuse Inc.In Stock: 713023201.6MXF5P Datasheet

Current PartRFQ

023401.6MXP

Littelfuse Inc.In Stock: 1879023401.6MXP Datasheet

Parametric EquivalentRFQ

MSC-1.6A

OptiFuseIn Stock: 1635MSC-1.6A Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 023201.6MXF5P is determined by strict equivalence across the following parameters:

• Current Rating: 1.6 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Response Time: Medium Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 100 A (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)
• Mounting Type: Requires Holder (exact match required)

Two substitute parts meet all substitution criteria: the Littelfuse 023401.6MXP (Series 234) and the OptiFuse MSC-1.6A (Series MSC). Both maintain identical electrical performance, mechanical compatibility, and functional characteristics as the primary part.

Parameter Comparison

Engineering Selection Recommendations

All three parts—023201.6MXF5P, 023401.6MXP, and MSC-1.6A—are Active products with ROHS3 compliance and identical electrical and mechanical specifications. Selection between these parts is based on regulatory approval requirements and inventory availability:

The Littelfuse 023401.6MXP provides the broadest regulatory coverage with CE, CSA, K-MARK, PSE, and UL certifications, making it suitable for applications requiring North American (UL/CSA) compliance in addition to international standards.

The OptiFuse MSC-1.6A carries cULus and UL 248 certifications, appropriate for applications requiring UL-listed component verification.

The Littelfuse 023201.6MXF5P holds CE, KC, and PSE certifications, suitable for applications requiring Korean (KC) and Japanese (PSE) market compliance.

Frequently Asked Questions (FAQ)

Q: Can the 023401.6MXP be used as a direct replacement for the 023201.6MXF5P?

A: Yes. Both parts share identical current rating (1.6 A), voltage rating (250 V AC), fuse type (cartridge, glass), package dimensions (5mm x 20mm), response time (medium blow), breaking capacity (100 A), and operating temperature range (-55°C to 125°C). Both require a fuse holder for mounting.

Q: What is the difference between the Littelfuse Series 232 and Series 234?

A: The 023201.6MXF5P (Series 232) and 023401.6MXP (Series 234) are functionally equivalent for the 1.6 A, 250 V rating. The primary differences are in regulatory certifications and DC cold resistance values (0.0537 Ohms vs. 0.0884 Ohms). Series 234 includes UL and CSA certifications, while Series 232 includes KC certification.

Q: Is the OptiFuse MSC-1.6A mechanically compatible with the same fuse holder?

A: Yes. The MSC-1.6A maintains the identical 5mm x 20mm form factor and requires the same holder type as both Littelfuse parts.

Q: What are the melting I²t differences, and do they affect substitution?

A: Melting I²t values are 6.96 (023201.6MXF5P), 6.14 (023401.6MXP), and 7.795 (MSC-1.6A). All three parts maintain medium-blow response characteristics and 100 A breaking capacity at rated voltage. These variations fall within acceptable tolerance for equivalent 1.6 A cartridge fuses and do not prevent substitution.

Q: Which part should I select for UL-compliant applications?

A: Both the Littelfuse 023401.6MXP (UL certified) and OptiFuse MSC-1.6A (cULus, UL 248 certified) are suitable for UL-compliant applications. The 023401.6MXP additionally carries CSA certification for North American use.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts—023201.6MXF5P, 023401.6MXP, and MSC-1.6A—are ROHS3 compliant.