Littelfuse 0332005.VXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0332005.VXP is a 5 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation with fast-blow response characteristics. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system maintenance and new design implementations. The fuse is designed for applications requiring reliable overcurrent protection in industrial and commercial equipment where ceramic construction provides superior arc suppression and thermal stability.

Key Parameters

Parameter	Value
Current Rating	5 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 to 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 0332005.VXP is determined by strict equivalence across the following critical parameters:

Current Rating: 5 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)
Operating Temperature Range: -55°C to 125°C (exact match required)

All substitute parts listed below meet these core electrical and mechanical parameters. Differences in breaking capacity, melting I²t values, approval agencies, and product status are noted but do not affect functional substitution within the specified parameter envelope.

Parameter Comparison

Parameter	0332005.VXP (Main)	0314005.VXP	0314005.HXP	0314005.MXP	0332005.HXP
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.
Current Rating (Amps)	5 A	5 A	5 A	5 A	5 A
Voltage Rating - AC	250 V	250 V	250 V	250 V	250 V
Voltage Rating - DC	125 V	125 V	125 V	125 V	125 V
Fuse Type	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic
Response Time	Fast Blow	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"	3AB, 3AG, 1/4" x 1-1/4"
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
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)	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Obsolete
Breaking Capacity @ Rated Voltage	100A	750A AC, 10kA DC	750A AC, 10kA DC	750A AC, 10kA DC	100A
Melting I²t	6.25	26	26	26	6.25
DC Cold Resistance	0.0128 Ohms	0.03 Ohms	0.03 Ohms	0.03 Ohms	0.0128 Ohms
Approval Agency	CE, cULus, PSE	CE, CSA, KC, PSE, UL	CE, CSA, K-MARK, PSE, UL	CE, CSA, K-MARK, PSE, UL	CE, cULus, PSE

Engineering Selection Recommendations

For applications currently using the obsolete 0332005.VXP, the active Series 314 parts (0314005.VXP, 0314005.HXP, 0314005.MXP) are the primary substitution path. These parts maintain full electrical and mechanical compatibility while offering enhanced breaking capacity specifications and broader regulatory approvals including UL and CSA certifications.

The 0314005.MXP variant is recommended as the preferred substitute due to highest inventory availability (6627 pcs) and active product status. The 0314005.VXP and 0314005.HXP provide equivalent functionality with comparable inventory levels.

The 0332005.HXP remains available as an alternative but shares obsolete status with the original part, making it unsuitable for long-term supply chain planning.

All substitute parts maintain ROHS3 compliance and identical operating temperature specifications, ensuring direct functional replacement within the specified parameter envelope.

Frequently Asked Questions (FAQ)

Q: Can the 0314005.VXP, 0314005.HXP, and 0314005.MXP be used interchangeably with the 0332005.VXP?

A: Yes. All three parts meet the core substitution criteria: 5 A current rating, 250 V AC / 125 V DC voltage ratings, ceramic cartridge construction, fast-blow response, and identical physical dimensions (1/4" x 1-1/4"). The differences in breaking capacity and melting I²t do not affect compatibility within the specified electrical and mechanical parameter envelope.

Q: What is the difference between the Series 314 and Series 332 fuses?

A: Both series meet the specified electrical and mechanical parameters for this application. Series 314 parts are active products with enhanced breaking capacity (750A AC, 10kA DC) compared to Series 332 (100A). Series 332 is classified as obsolete. For new designs and ongoing supply, Series 314 is the appropriate selection.

Q: Are there differences in approval certifications between substitute parts?

A: Yes. The 0314005.VXP includes KC approval; 0314005.HXP and 0314005.MXP include K-MARK and UL approvals. The original 0332005.VXP carries CE, cULus, and PSE certifications. Selection should be based on the specific regulatory requirements of the target application and end market.

Q: Does the difference in DC Cold Resistance affect substitution?

A: The DC cold resistance values (0.0128 Ohms for Series 332 vs. 0.03 Ohms for Series 314) reflect design differences but do not prevent functional substitution. Both values are within acceptable ranges for ceramic fuse cartridge construction and do not affect the fuse's overcurrent protection function within the specified parameter envelope.

Q: What packaging options are available for the substitute parts?

A: The 0314005.VXP, 0314005.HXP, and 0314005.MXP are supplied in bulk packaging. All maintain the same 3AB, 3AG holder compatibility and 1/4" x 1-1/4" physical dimensions as the original 0332005.VXP.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message