Littelfuse 0325015.MXDP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0325015.MXDP is a 15 A, 250 V AC / 60 V DC ceramic cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in 3AB/3AG form factor (1/4" x 1-1/4" axial). This component is classified as Active product status and carries multiple international approvals including CE, CSA, and UL certification. Equivalent and substitute parts are identified when identical electrical ratings, mechanical dimensions, and mounting configurations are maintained across manufacturers or product variants.

Key Parameters

Parameter	Specification
Current Rating	15 A
Voltage Rating - AC	250 V
Voltage Rating - DC	60 V
Fuse Type	Cartridge, Ceramic
Response Time	Slow Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4" (Axial)
Mounting Type	Through Hole
Operating Temperature Range	-55°C ~ 125°C
Breaking Capacity @ Rated Voltage	400A AC, 500A DC
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 0325015.MXDP is determined by strict equivalence across the following critical parameters:

Current Rating: 15 A (exact match required)
Voltage Rating - AC: 250 V (exact match required)
Voltage Rating - DC: 60 V (exact match required)
Fuse Type: Cartridge, Ceramic (exact match required)
Response Time: Slow Blow (exact match required)
Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
Mounting Type: Through Hole (exact match required)

Two substitute parts meet these criteria: the Littelfuse 0325015.MXP (parametric equivalent from the same manufacturer) and the SCHURTER 8020.0604.PT (manufacturer-recommended equivalent from an alternative supplier).

Parameter Comparison

Parameter	0325015.MXDP (Main)	0325015.MXP (Littelfuse)	8020.0604.PT (SCHURTER)
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	SCHURTER Inc.
Current Rating (Amps)	15 A	15 A	15 A
Voltage Rating - AC	250 V	250 V	250 V
Voltage Rating - DC	60 V	60 V	Not specified
Fuse Type	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic
Response Time	Slow Blow	Slow Blow	Slow Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4" (Axial)	3AB, 3AG, 1/4" x 1-1/4" (Axial)	3AB, 3AG, 1/4" x 1-1/4" (Axial)
Mounting Type	Through Hole	Through Hole	Through Hole
Breaking Capacity @ Rated Voltage	400A AC, 500A DC	400A AC, 500A DC	500A
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 85°C
DC Cold Resistance	0.0083 Ohms	0.005 Ohms	0.0047 Ohms
Melting I²t	760	245	152
Approval Agency	CE, CSA, UL	CE, CSA, K-MARK, PSE, UL	cURus
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

Littelfuse 0325015.MXP: This part is a parametric equivalent manufactured by Littelfuse Inc. and carries Active product status. It maintains identical electrical ratings (15 A, 250 V AC, 60 V DC) and mechanical form factor as the primary part. Approval certifications include CE, CSA, K-MARK, PSE, and UL, providing broader international compliance coverage than the main part. This substitute is suitable for direct replacement in applications where Littelfuse product continuity is preferred.

SCHURTER 8020.0604.PT: This part is a manufacturer-recommended equivalent from SCHURTER Inc. and carries Active product status. It maintains the required electrical ratings (15 A, 250 V AC) and identical mechanical form factor. The part holds cURus certification (combined UL and CSA approval). The operating temperature range (-40°C ~ 85°C) is narrower than the main part (-55°C ~ 125°C), and DC voltage rating is not specified in the provided data. This substitute is suitable for applications operating within the specified temperature range and where cross-manufacturer sourcing is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 0325015.MXP be used as a direct replacement for the 0325015.MXDP?

A: Yes. Both parts are manufactured by Littelfuse Inc., share identical current ratings (15 A), voltage ratings (250 V AC, 60 V DC), fuse type (ceramic cartridge), response time (slow blow), and mechanical form factor (3AB/3AG, 1/4" x 1-1/4" axial). Both are Active product status with ROHS3 compliance.

Q: What are the key differences between the Littelfuse 0325015.MXP and SCHURTER 8020.0604.PT?

A: Both parts meet the core electrical and mechanical substitution criteria. Differences include: manufacturer (Littelfuse vs. SCHURTER), approval certifications (Littelfuse includes K-MARK and PSE; SCHURTER holds cURus), operating temperature range (Littelfuse: -55°C ~ 125°C; SCHURTER: -40°C ~ 85°C), and DC cold resistance values (Littelfuse: 0.005 Ohms; SCHURTER: 0.0047 Ohms).

Q: Is the SCHURTER 8020.0604.PT suitable for all applications using the 0325015.MXDP?

A: The SCHURTER part is suitable for applications operating within its specified temperature range (-40°C ~ 85°C). Applications requiring operation below -40°C or above 85°C should use the Littelfuse variants, which support -55°C ~ 125°C.

Q: Are all three parts ROHS3 compliant?

A: Yes. The 0325015.MXDP, 0325015.MXP, and 8020.0604.PT are all ROHS3 compliant and REACH unaffected.

Q: What is the significance of the different Melting I²t values?

A: The Melting I²t values (0325015.MXDP: 760; 0325015.MXP: 245; 8020.0604.PT: 152) indicate the thermal energy required to melt the fuse element. These differences reflect internal design variations while maintaining the same current rating and response time classification. All three parts are rated for 15 A slow-blow operation.

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