Littelfuse 0313010.MXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0313010.MXP is a 10 A, 32 V AC/DC glass cartridge fuse with slow-blow response characteristics, designed for applications requiring overcurrent protection in industrial and commercial equipment. This fuse operates within the 313 series and requires a compatible holder (3AB, 3AG format). The part maintains active product status with full UL approval and ROHS3 compliance. Equivalent and substitute parts are identified based on identical electrical ratings, mechanical dimensions, and performance characteristics to ensure direct interchangeability in circuit protection applications.

Key Parameters

Parameter	Value
Current Rating	10 A
Voltage Rating (AC)	32 V
Fuse Type	Cartridge, Glass
Response Time	Slow Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4"
Size / Dimension	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
Breaking Capacity @ Rated Voltage	300 A
Melting I²t	760
DC Cold Resistance	0.0083 Ohms
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Approval Agency	UL

Substitute Part Grouping Explanation

Substitute parts for the 0313010.MXP are identified through strict parametric equivalence. All substitute parts maintain identical electrical specifications: 10 A current rating, 32 V AC voltage rating, slow-blow response, and 300 A breaking capacity. Mechanical compatibility is ensured through matching package designation (3AB, 3AG) and physical dimensions (0.250" Dia x 1.250" L). All substitute parts share the same melting I²t value (760), DC cold resistance (0.0083 Ohms), and operating temperature range (-55°C ~ 125°C). Substitution is valid only when all these parameters match exactly. Differences in approval agency certifications and packaging variants do not affect electrical or mechanical interchangeability.

Parameter Comparison

Parameter	0313010.MXP	0313010.HXP	0313010.HXIDP	0313010.VXP
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.
Current Rating (Amps)	10 A	10 A	10 A	10 A
Voltage Rating - AC	32 V	32 V	32 V	32 V
Fuse Type	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow 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)
Breaking Capacity @ Rated Voltage	300 A	300 A	300 A	300 A
Melting I²t	760	760	760	760
DC Cold Resistance	0.0083 Ohms	0.0083 Ohms	0.0083 Ohms	0.0083 Ohms
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active
Approval Agency	UL	UL	UL	CE, CSA, PSE, UL

Engineering Selection Recommendations

All four parts (0313010.MXP, 0313010.HXP, 0313010.HXIDP, and 0313010.VXP) are electrically and mechanically equivalent and maintain active product status. Selection between these parts should be based on availability and approval agency requirements for the target application. The 0313010.VXP variant provides extended certification coverage with CE, CSA, and PSE approvals in addition to UL, making it suitable for applications requiring multi-regional compliance. The 0313010.MXP, 0313010.HXP, and 0313010.HXIDP variants carry UL approval and are appropriate for applications with UL-only requirements. All parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Frequently Asked Questions (FAQ)

Q: Can 0313010.HXP be used as a direct replacement for 0313010.MXP? A: Yes. Both parts share identical electrical ratings (10 A, 32 V AC), response characteristics (slow-blow), mechanical dimensions (0.250" Dia x 1.250" L), and package designation (3AB, 3AG). They are direct equivalents.

Q: What is the difference between 0313010.HXIDP and 0313010.VXP? A: Both parts are parametrically equivalent with identical electrical and mechanical specifications. The primary difference is approval agency certification: 0313010.HXIDP carries UL approval, while 0313010.VXP carries CE, CSA, PSE, and UL approvals. Selection depends on regional compliance requirements.

Q: Are these fuses interchangeable in the same holder? A: Yes. All substitute parts conform to the 3AB, 3AG package designation and 0.250" Dia x 1.250" L physical dimensions, ensuring mechanical compatibility with the same holder assembly.

Q: What does "slow-blow" response mean for these fuses? A: Slow-blow response indicates the fuse tolerates temporary current surges without opening, responding only to sustained overcurrent conditions. This characteristic is consistent across all four equivalent parts.

Q: Are there any inventory considerations when selecting a substitute? A: Current inventory levels are: 0313010.MXP (1692 pcs), 0313010.HXP (767 pcs), 0313010.HXIDP (857 pcs), and 0313010.VXP (890 pcs). Selection may be influenced by availability requirements and lead time considerations.

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