Littelfuse 0225003.H Glass Cartridge Fuse 3A 250VAC Equivalent & Substitute Parts

Part Overview

The Littelfuse 0225003.H is a 3 A, 250 V AC fast-blow glass cartridge fuse in 2AG package format (5mm x 15mm). This component is classified as obsolete, requiring identification of active equivalent alternatives for continued system support and procurement. Substitute parts must maintain identical electrical ratings, mechanical dimensions, and holder compatibility to ensure direct functional replacement without circuit redesign.

Key Parameters

Parameter	Value
Current Rating	3 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Package / Case	2AG, 5mm x 15mm
Response Time	Fast Blow
Breaking Capacity @ Rated Voltage	100 A
Melting I²t	4.62
Operating Temperature Range	-55°C to 125°C
DC Cold Resistance	0.031 Ohms
Size / Dimension	0.177" Dia x 0.570" L (4.50mm x 14.48mm)

Substitute Part Grouping Explanation

Substitution of the obsolete 0225003.H is based on strict equivalence of the following electrical and mechanical parameters:

Current Rating: 3 A (exact match required)
Voltage Rating (AC): 250 V (exact match required)
Package / Case: 2AG, 5mm x 15mm (exact match required for holder compatibility)
Response Time: Fast Blow (exact match required)
Melting I²t: 4.62 (exact match required)
Operating Temperature Range: -55°C to 125°C (exact match required)
Physical Dimensions: 0.177" Dia x 0.570" L (exact match required)

All three substitute parts—0225003.HXP, 0225003.MXP, and 0225003.VXP—meet these criteria. These active alternatives provide enhanced compliance certifications and DC voltage ratings not present in the obsolete original part.

Parameter Comparison

Parameter	0225003.H (Original)	0225003.HXP	0225003.MXP	0225003.VXP
Current Rating (Amps)	3 A	3 A	3 A	3 A
Voltage Rating - AC	250 V	250 V	250 V	250 V
Voltage Rating - DC	Not specified	125 V	125 V	125 V
Response Time	Fast Blow	Fast Blow	Fast Blow	Fast Blow
Package / Case	2AG, 5mm x 15mm	2AG, 5mm x 15mm	2AG, 5mm x 15mm	2AG, 5mm x 15mm
Breaking Capacity @ Rated Voltage	100 A	100 A AC, 10 kA DC	100 A AC, 10 kA DC	100 A AC, 10 kA DC
Melting I²t	4.62	4.62	4.62	4.62
Operating Temperature	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
DC Cold Resistance	0.031 Ohms	0.0317 Ohms	0.0317 Ohms	0.0317 Ohms
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	CSA, METI, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL

Engineering Selection Recommendations

All three substitute parts—0225003.HXP, 0225003.MXP, and 0225003.VXP—are functionally equivalent for direct replacement of the 0225003.H in AC-only applications. Selection among these three active alternatives should be based on:

Product Status & Compliance: All substitutes are active products with ROHS3 compliance and expanded certification coverage (CE, CSA, PSE, UL) compared to the obsolete original part (CSA, METI, UL).

DC Voltage Capability: All substitutes provide 125 V DC rating, extending application scope beyond the original part's AC-only specification.

Inventory Availability: 0225003.MXP offers the highest stock level (4253 pcs), followed by 0225003.HXP (2168 pcs) and 0225003.VXP (1077 pcs).

Packaging: All substitutes are supplied in bulk packaging, consistent with modern procurement practices.

For AC 250 V applications requiring the 3 A, 2AG fast-blow fuse specification, any of the three substitutes provides equivalent electrical performance and enhanced regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can 0225003.HXP, 0225003.MXP, or 0225003.VXP be used as direct replacements for 0225003.H?

A: Yes. All three parts maintain identical current rating (3 A), AC voltage rating (250 V), package format (2AG, 5mm x 15mm), response time (fast blow), and melting I²t (4.62). They are mechanically and electrically compatible with existing 2AG fuse holders.

Q: What is the difference between the three substitute parts?

A: 0225003.HXP, 0225003.MXP, and 0225003.VXP are parametrically equivalent. All share identical electrical specifications, physical dimensions, and certifications. Differences exist only in packaging designation and inventory levels.

Q: Does the DC voltage rating on the substitute parts affect AC-only applications?

A: No. The 125 V DC rating on substitute parts is an additional capability that does not impact AC circuit operation. For AC 250 V applications, this parameter is not active.

Q: Are the substitute parts RoHS compliant?

A: Yes. All three substitute parts (0225003.HXP, 0225003.MXP, 0225003.VXP) are ROHS3 compliant, whereas the original 0225003.H is RoHS non-compliant.

Q: Will the substitute parts fit existing 2AG fuse holders?

A: Yes. All substitute parts maintain the 2AG package format with identical physical dimensions (0.177" Dia x 0.570" L / 4.50mm x 14.48mm), ensuring compatibility with all standard 2AG holders.

Q: What certifications do the substitute parts carry?

A: All three substitutes carry CE, CSA, PSE, and UL certifications, providing broader regulatory coverage than the original part (CSA, METI, UL).

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