Littelfuse 0325.062H Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0325.062H is a 62 mA, 250 V AC/DC ceramic cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in 3AB/3AG package format (1/4" x 1-1/4" axial). This part is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement. Direct manufacturer alternatives and parametric equivalents from Littelfuse are available with active product status and improved compliance certifications.

Key Parameters

Parameter	Value
Current Rating	62 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Ceramic
Response Time	Slow Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4" (Axial)
Mounting Type	Through Hole
Breaking Capacity @ Rated Voltage	100 A
Melting I²t	0.0276
Size / Dimension	0.275" Dia x 1.288" L (6.99mm x 32.72mm)
DC Cold Resistance	91 Ohms

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Current Rating: 62 mA (exact match required)
Voltage Rating (AC): 250 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)
Breaking Capacity @ Rated Voltage: 100 A (exact match required)
Melting I²t: 0.0276 (exact match required)

All substitute parts listed below meet these criteria. The Littelfuse 0325.062HXP, 0325.062MXP, and 0325.062VXP are direct parametric equivalents with identical electrical and mechanical specifications. The Eaton BK/MDA-V-1/16 does not meet substitution criteria due to a different current rating (31 mA vs. 62 mA) and is excluded from the equivalency table.

Parameter Comparison

Parameter	0325.062H	0325.062HXP	0325.062MXP	0325.062VXP
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.
Current Rating (Amps)	62 mA	62 mA	62 mA	62 mA
Voltage Rating - AC	250 V	250 V	250 V	250 V
Fuse Type	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic
Response Time	Slow Blow	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)	3AB, 3AG, 1/4" x 1-1/4" (Axial)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Breaking Capacity @ Rated Voltage	100 A	100 A	100 A	100 A
Melting I²t	0.0276	0.0276	0.0276	0.0276
Size / Dimension	0.275" Dia x 1.288" L (6.99mm x 32.72mm)	0.275" Dia x 1.288" L (6.99mm x 32.72mm)	0.275" Dia x 1.288" L (6.99mm x 32.72mm)	0.275" Dia x 1.288" L (6.99mm x 32.72mm)
DC Cold Resistance	91 Ohms	91.7 Ohms	91.7 Ohms	91.7 Ohms
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	-	CE	CE	CE
Operating Temperature	-	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C

Engineering Selection Recommendations

The Littelfuse 0325.062HXP, 0325.062MXP, and 0325.062VXP are direct functional equivalents to the obsolete 0325.062H. All three substitute parts are active products with identical electrical and mechanical specifications, including current rating, voltage rating, response time, package format, and breaking capacity.

The substitute parts offer improved compliance status compared to the original part. All three alternatives are ROHS3 compliant and carry CE approval, whereas the 0325.062H is RoHS non-compliant with no listed approval agency. The substitute parts also specify an operating temperature range of -55°C to 125°C, providing defined thermal performance boundaries.

DC cold resistance values for the substitute parts (91.7 Ohms) are marginally higher than the original part (91 Ohms), representing a negligible difference within typical component tolerance ranges and does not affect functional equivalency.

Selection among the three active Littelfuse alternatives may be based on packaging format (all listed as Bulk) and inventory availability. The 0325.062MXP offers the highest inventory level at 2300 pieces.

Frequently Asked Questions (FAQ)

Q: Can the 0325.062HXP, 0325.062MXP, or 0325.062VXP be used as direct replacements for the 0325.062H?

A: Yes. All three parts are parametric equivalents with identical current rating (62 mA), voltage rating (250 V), fuse type (ceramic cartridge), response time (slow blow), package format (3AB/3AG, 1/4" x 1-1/4"), mounting type (through hole), breaking capacity (100 A), and melting I²t (0.0276). Physical dimensions and DC cold resistance are equivalent within acceptable tolerances.

Q: What is the difference between the three substitute part numbers?

A: The 0325.062HXP, 0325.062MXP, and 0325.062VXP are functionally identical. Differences are limited to packaging designation and inventory levels. All three are active products with ROHS3 compliance and CE approval.

Q: Why is the Eaton BK/MDA-V-1/16 not listed as an equivalent?

A: The Eaton BK/MDA-V-1/16 has a current rating of 31 mA, which does not match the required 62 mA specification. Fuse current rating is a critical parameter that cannot be substituted. This part is not functionally equivalent.

Q: Are there any compliance differences between the original 0325.062H and the substitute parts?

A: Yes. The original 0325.062H is RoHS non-compliant with no listed approval agency. The substitute parts (0325.062HXP, 0325.062MXP, 0325.062VXP) are ROHS3 compliant and carry CE approval. The substitute parts also specify an operating temperature range of -55°C to 125°C.

Q: Will the substitute parts fit in the same PCB footprint and through-hole mounting positions?

A: Yes. All substitute parts share identical package specifications (3AB, 3AG, 1/4" x 1-1/4" axial) and physical dimensions (0.275" Dia x 1.288" L / 6.99mm x 32.72mm). Through-hole mounting compatibility is maintained.

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