Littelfuse 0275025.M Board Mount Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0275025.M is a 25A 32VAC/32VDC board mount axial fuse with fast blow response characteristics, designed for through-hole PCB applications. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for seamless circuit board integration.

Key Parameters

Parameter	Value
Current Rating	25 A
Voltage Rating (AC)	32 V
Voltage Rating (DC)	32 V
Response Time	Fast Blow
Mounting Type	Through Hole
Package / Case	Axial
Breaking Capacity @ Rated Voltage	100A AC, 300A DC
Melting I²t	192
Size / Dimension	0.133" Dia x 0.310" L (3.38mm x 7.87mm)
DC Cold Resistance	0.0026 Ohms
Operating Temperature Range	-55°C ~ 125°C
Approval Agency	UL
Series	PICO® 275

Substitute Part Grouping Explanation

Substitution eligibility for the 0275025.M is determined by strict equivalence across the following critical parameters:

Current Rating: 25 A (exact match required)
Voltage Rating: 32 V AC and 32 V DC (exact match required)
Response Time: Fast Blow (exact match required)
Mounting Type: Through Hole (exact match required)
Package / Case: Axial (exact match required)
Breaking Capacity: 100A AC, 300A DC (exact match required)
Melting I²t: 192 (exact match required)
Physical Dimensions: 0.133" Dia x 0.310" L (exact match required)
DC Cold Resistance: 0.0026 Ohms (exact match required)
Operating Temperature: -55°C ~ 125°C (exact match required)

Both identified substitutes—0275025.MXL and 0275025.VXL—satisfy all electrical and mechanical equivalence criteria and are manufactured by Littelfuse Inc. within the PICO® 275 series.

Parameter Comparison

Parameter	0275025.M (Main)	0275025.MXL (Substitute)	0275025.VXL (Substitute)
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.
Current Rating (Amps)	25 A	25 A	25 A
Voltage Rating - AC	32 V	32 V	32 V
Voltage Rating - DC	32 V	32 V	32 V
Response Time	Fast Blow	Fast Blow	Fast Blow
Mounting Type	Through Hole	Through Hole	Through Hole
Fuse Type	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)	Board Mount (Cartridge Style Excluded)
Package / Case	Axial	Axial	Axial
Breaking Capacity @ Rated Voltage	100A AC, 300A DC	100A AC, 300A DC	100A AC, 300A DC
Melting I²t	192	192	192
Size / Dimension	0.133" Dia x 0.310" L (3.38mm x 7.87mm)	0.133" Dia x 0.310" L (3.38mm x 7.87mm)	0.133" Dia x 0.310" L (3.38mm x 7.87mm)
DC Cold Resistance	0.0026 Ohms	0.0026 Ohms	0.0026 Ohms
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Approval Agency	UL	UL	UL
Series	PICO® 275	PICO® 275	PICO® 275
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Both 0275025.MXL and 0275025.VXL are direct functional equivalents to the obsolete 0275025.M. Selection between these two active alternatives should be based on the following factors:

0275025.MXL is designated as the manufacturer-recommended substitute. This part carries ROHS3 compliance certification and is available in bulk packaging with higher inventory levels (3,581 pcs), supporting production volume requirements.

0275025.VXL is a parametric equivalent offering identical electrical and mechanical performance. This part also carries ROHS3 compliance and REACH unaffected status, with availability in bulk packaging (691 pcs).

Both substitutes are manufactured by Littelfuse Inc. and maintain UL approval agency certification. The choice between them depends on supply chain availability, packaging requirements, and compliance documentation needs for your specific application.

Frequently Asked Questions (FAQ)

Q: Can 0275025.MXL and 0275025.VXL be used interchangeably with 0275025.M?

A: Yes. Both substitutes are electrically and mechanically equivalent. They share identical current ratings (25A), voltage ratings (32VAC/32VDC), response characteristics (fast blow), physical dimensions (0.133" Dia x 0.310" L), and breaking capacity specifications (100A AC, 300A DC). Direct PCB substitution is supported without circuit modification.

Q: What is the difference between 0275025.MXL and 0275025.VXL?

A: Both parts are parametrically identical across all electrical and mechanical specifications. The primary distinction is product designation: 0275025.MXL is the manufacturer-recommended substitute, while 0275025.VXL is classified as a parametric equivalent. Both carry ROHS3 compliance and are actively manufactured.

Q: Why is the original 0275025.M classified as obsolete?

A: The 0275025.M is marked obsolete in the product lifecycle. The active alternatives 0275025.MXL and 0275025.VXL provide continued access to this fuse specification with improved compliance status (ROHS3 compliant versus RoHS non-compliant).

Q: Are there any compliance differences between the main part and substitutes?

A: Yes. The 0275025.M is RoHS non-compliant, while both 0275025.MXL and 0275025.VXL are ROHS3 compliant. Both substitutes also carry REACH unaffected status. For applications requiring RoHS compliance, the substitutes are the appropriate selection.

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

A: Both 0275025.MXL and 0275025.VXL are supplied in bulk packaging. The 0275025.M was supplied with standard packaging designation. Confirm packaging requirements with your procurement specification.

Q: Are the substitutes UL approved?

A: Yes. Both 0275025.MXL and 0275025.VXL carry UL approval agency certification, maintaining the same regulatory qualification as the original 0275025.M.

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