Littelfuse 0233002.MXW Glass Cartridge Fuse 2A 125VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0233002.MXW is a 2A 125VAC glass cartridge fuse with 5mm x 20mm dimensions, rated for medium blow response. This part is classified as obsolete and requires a holder for installation. Due to its obsolete status, equivalent and substitute parts from active product lines are necessary for ongoing circuit protection applications and design continuity.

Key Parameters

Parameter	Value
Current Rating	2 A
Voltage Rating (AC)	125 V
Fuse Type	Cartridge, Glass
Package / Case	5mm x 20mm
Response Time	Medium Blow
Breaking Capacity @ Rated Voltage	10kA
Operating Temperature Range	-55°C ~ 125°C
Mounting Type	Requires Holder

Substitute Part Grouping Explanation

Substitution for the 0233002.MXW is determined by strict equivalence across the following parameters:

Current Rating: 2 A (exact match required)
Voltage Rating: 125 V AC (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: 10kA (exact match required)
Operating Temperature: -55°C ~ 125°C (exact match required)

All substitute parts listed maintain these core electrical and mechanical parameters. Differences in DC cold resistance, melting I²t values, and approval certifications do not affect functional substitutability within the specified electrical envelope.

Parameter Comparison

Part Number	Manufacturer	Current (A)	Voltage (V AC)	Package	Response Time	Breaking Capacity (kA)	Mounting Type	Product Status	RoHS Status
0233002.MXW	Littelfuse Inc.	2	125	5mm x 20mm	Medium Blow	10	Requires Holder	Obsolete	RoHS non-compliant
0233002.MXEP	Littelfuse	2	125	5mm x 20mm (Axial)	Medium Blow	10	Through Hole	Active	ROHS3 Compliant
0232002.MX125P	Littelfuse Inc.	2	125	5mm x 20mm	Medium Blow	10	Requires Holder	Active	ROHS3 Compliant
0232002.MXF22125P	Littelfuse Inc.	2	125	5mm x 20mm	Medium Blow	10	Requires Holder	Active	ROHS3 Compliant
0233002.MXBP	Littelfuse Inc.	2	125	5mm x 20mm	Medium Blow	10	Requires Holder	Active	ROHS3 Compliant
0233002.MXF34P	Littelfuse Inc.	2	125	5mm x 20mm	Medium Blow	10	Requires Holder	Active	ROHS3 Compliant
0233002.MXP	Littelfuse Inc.	2	125	5mm x 20mm	Medium Blow	10	Requires Holder	Active	ROHS3 Compliant

Engineering Selection Recommendations

For applications currently using the obsolete 0233002.MXW, the following selection criteria apply:

Holder-Based Mounting (Requires Holder): Parts 0232002.MX125P, 0232002.MXF22125P, 0233002.MXBP, 0233002.MXF34P, and 0233002.MXP are direct mechanical and electrical replacements. All are active products with ROHS3 compliance and expanded approval certifications (CE, CSA, KC, PSE, UL). These parts maintain identical electrical performance within the 2A 125VAC envelope.

Through-Hole Mounting Alternative: Part 0233002.MXEP offers an alternative mounting configuration with through-hole design. This part is suitable for applications where axial lead mounting is preferred or required by PCB layout constraints. It maintains all core electrical parameters and is ROHS3 compliant with CE, CSA, KC, PSE, and UL certifications.

Compliance Consideration: All substitute parts are ROHS3 compliant, addressing regulatory requirements that the original obsolete part does not meet. Selection should prioritize active product status and required mounting configuration for the target application.

Frequently Asked Questions (FAQ)

Q: Can 0233002.MXEP replace 0233002.MXW directly?

A: Electrically, yes. The 0233002.MXEP maintains all core electrical parameters (2A, 125VAC, 10kA breaking capacity, medium blow response). However, it uses through-hole mounting instead of requiring a holder. Physical installation compatibility depends on the circuit design and holder availability.

Q: What is the difference between Series 232 and Series 233 parts?

A: Both series maintain identical electrical ratings (2A, 125VAC, 10kA breaking capacity, medium blow response) and physical dimensions (5mm x 20mm). Series designation reflects internal design variations. All listed parts are functionally equivalent within the specified electrical envelope.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All active substitute parts (0233002.MXEP, 0232002.MX125P, 0232002.MXF22125P, 0233002.MXBP, 0233002.MXF34P, 0233002.MXP) are ROHS3 compliant. The original 0233002.MXW is RoHS non-compliant.

Q: What certifications do the substitute parts carry?

A: Holder-based parts carry CE, CSA, KC, PSE, and UL certifications. The through-hole part (0233002.MXEP) carries the same certifications. The original part carried CSA, K-MARK, METI, and UL certifications.

Q: Can I use these parts interchangeably in the same circuit?

A: Yes, provided the mounting configuration (holder-based or through-hole) is compatible with your circuit design. All parts maintain identical electrical performance within the 2A 125VAC specification.

Q: What is the difference in DC cold resistance between parts?

A: The original part has 0.068 Ohms. Series 232 parts have 0.037 Ohms. Series 233 parts have 0.0684 Ohms. These variations do not affect circuit protection performance within the specified electrical ratings.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message