Littelfuse 0332002.MXP Ceramic Fuse Cartridge Equivalent & Substitute Parts

Part Overview

The Littelfuse 0332002.MXP is a 2 A, 250 V AC / 125 V DC ceramic fuse cartridge designed for fast-blow applications in 3AB, 3AG holder configurations. This part operates across a temperature range of -55°C to 125°C and carries CE, cULus, and PSE approvals. The 0332002.MXP is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and procurement continuity.

Key Parameters

Parameter	Value
Current Rating	2 A
Voltage Rating (AC)	250 V
Voltage Rating (DC)	125 V
Fuse Type	Cartridge, Ceramic
Response Time	Fast Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4" (6.35mm x 31.75mm)
Mounting Type	Requires Holder
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 0332002.MXP is determined by strict equivalence across the following electrical and mechanical parameters:

Current Rating: 2 A (exact match required)
Voltage Rating AC: 250 V (exact match required)
Voltage Rating DC: 125 V (exact match required)
Fuse Type: Cartridge, Ceramic (exact match required)
Response Time: Fast Blow (exact match required)
Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
Mounting Type: Requires Holder (exact match required)

The substitute parts 0314002.MXP, 0314002.HXP, and 0314002.VXP are all members of the Littelfuse 314 series and meet all electrical and mechanical requirements for direct substitution. These parts are classified as active products, ensuring long-term availability and supply chain stability compared to the obsolete 0332002.MXP.

Parameter Comparison

Parameter	0332002.MXP (Main)	0314002.MXP	0314002.HXP	0314002.VXP
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.
Series	332	314	314	314
Product Status	Obsolete	Active	Active	Active
Current Rating (Amps)	2 A	2 A	2 A	2 A
Voltage Rating - AC	250 V	250 V	250 V	250 V
Voltage Rating - DC	125 V	125 V	125 V	125 V
Response Time	Fast Blow	Fast Blow	Fast Blow	Fast Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"	3AB, 3AG, 1/4" x 1-1/4"
Size / Dimension	0.250" Dia x 1.250" L (6.35mm x 31.75mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
Mounting Type	Requires Holder	Requires Holder	Requires Holder	Requires Holder
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Breaking Capacity @ Rated Voltage	100A	100A AC, 10kA DC	100A AC, 10kA DC	100A AC, 10kA DC
Melting I²t	0.56	11	11	11
DC Cold Resistance	0.0416 Ohms	0.07 Ohms	0.07 Ohms	0.07 Ohms
Approval Agency	CE, cULus, PSE	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	Not specified	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three substitute parts—0314002.MXP, 0314002.HXP, and 0314002.VXP—are direct functional equivalents to the obsolete 0332002.MXP. Selection among these active alternatives should be based on the following factors:

Product Status & Availability: The 314 series parts are classified as active products, ensuring sustained manufacturing and supply chain availability. The 0332002.MXP is obsolete and subject to discontinuation.

Regulatory Compliance: The substitute parts carry expanded approval certifications (CE, CSA, PSE, UL) compared to the main part (CE, cULus, PSE). The 314 series parts also include REACH Unaffected status, providing additional regulatory clarity for international applications.

Electrical Performance: All parts meet identical electrical specifications for current, voltage, and response time. The 314 series parts provide enhanced breaking capacity at DC ratings (10kA DC versus unspecified for the 332 series) and higher melting I²t values (11 versus 0.56), indicating improved thermal performance characteristics.

Mechanical Compatibility: All substitute parts maintain identical physical dimensions and holder requirements, ensuring direct mechanical interchangeability without modification to existing holder assemblies.

Frequently Asked Questions (FAQ)

Q: Can 0314002.MXP, 0314002.HXP, and 0314002.VXP be used interchangeably with 0332002.MXP?

A: Yes. All three substitute parts meet identical electrical and mechanical specifications for current rating (2 A), voltage ratings (250 V AC / 125 V DC), fuse type (ceramic cartridge), response time (fast blow), and physical dimensions (3AB, 3AG, 1/4" x 1-1/4"). Direct substitution is supported without circuit modification.

Q: What is the difference between 0314002.MXP, 0314002.HXP, and 0314002.VXP?

A: These three parts are parametric equivalents with identical electrical and mechanical specifications. The designations MXP, HXP, and VXP represent different internal construction or material variants within the 314 series, but all meet the same performance requirements for this application.

Q: Why should I transition from 0332002.MXP to the 314 series?

A: The 0332002.MXP is classified as obsolete. The 314 series parts are active products with confirmed long-term availability. Additionally, the 314 series provides enhanced regulatory certifications (CSA, UL in addition to CE and PSE) and improved DC breaking capacity (10kA DC), supporting broader application requirements.

Q: Are there any compatibility concerns with existing holder assemblies?

A: No. All substitute parts maintain the same physical dimensions (0.250" Dia x 1.250" L) and holder requirements (3AB, 3AG). Existing holder assemblies require no modification.

Q: What certifications do the substitute parts carry?

A: The 314 series parts carry CE, CSA, PSE, and UL approvals. All parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for industrial and consumer applications.

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