Littelfuse 0225002.H Glass Cartridge Fuse 2A 250VAC Equivalent & Substitute Parts

Part Overview

The Littelfuse 0225002.H is a 2 A, 250 V AC fast-blow glass cartridge fuse in 2AG package format (5mm x 15mm). This part is classified as obsolete. Due to its obsolete status, equivalent substitute parts with active product status are available from the same manufacturer series, offering improved availability and compliance with current regulatory standards while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Current Rating	2 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Package / Case	2AG, 5mm x 15mm
Response Time	Fast Blow
Mounting Type	Requires Holder
Operating Temperature Range	-55°C ~ 125°C
Melting I²t	1.5
Breaking Capacity @ Rated Voltage	100 A

Substitute Part Grouping Explanation

Substitute parts for the 0225002.H are determined by strict equivalence across the following critical parameters:

Current Rating: 2 A (exact match required)
Voltage Rating (AC): 250 V (exact match required)
Package / Case: 2AG, 5mm x 15mm (exact match required)
Fuse Type: Cartridge, Glass (exact match required)
Response Time: Fast Blow (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)
Melting I²t: 1.5 (exact match required)

The substitute parts 0225002.HXP, 0225002.MXP, and 0225002.VXP meet all these criteria. These parts additionally provide DC voltage rating (125 V DC) and enhanced breaking capacity specifications (10 kA DC), representing functional improvements while maintaining full AC compatibility with the original part.

Parameter Comparison

Parameter	0225002.H	0225002.HXP	0225002.MXP	0225002.VXP
Current Rating (Amps)	2 A	2 A	2 A	2 A
Voltage Rating - AC	250 V	250 V	250 V	250 V
Voltage Rating - DC	Not specified	125 V	125 V	125 V
Fuse Type	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass
Package / Case	2AG, 5mm x 15mm	2AG, 5mm x 15mm	2AG, 5mm x 15mm	2AG, 5mm x 15mm
Response Time	Fast Blow	Fast Blow	Fast Blow	Fast Blow
Mounting Type	Requires Holder	Requires Holder	Requires Holder	Requires Holder
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Melting I²t	1.5	1.5	1.5	1.5
Breaking Capacity @ Rated Voltage	100 A	100 A AC, 10 kA DC	100 A AC, 10 kA DC	100 A AC, 10 kA DC
DC Cold Resistance	0.049 Ohms	0.0497 Ohms	0.0497 Ohms	0.0497 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 (0225002.HXP, 0225002.MXP, 0225002.VXP) are direct functional equivalents for AC applications. Selection among these three parts should be based on availability and supply chain requirements, as they are electrically and mechanically identical.

The substitute parts offer the following advantages over the original 0225002.H:

Active product status ensures ongoing availability and supply chain continuity
ROHS3 compliance meets current environmental and regulatory requirements
Enhanced approval agency certifications (CE, PSE added) provide broader market acceptance
DC voltage rating (125 V) and enhanced DC breaking capacity (10 kA) enable use in mixed AC/DC applications
Negligible resistance variation (0.0497 Ohms vs. 0.049 Ohms) maintains thermal performance equivalence

Frequently Asked Questions (FAQ)

Q: Can 0225002.HXP, 0225002.MXP, or 0225002.VXP be used as direct replacements for 0225002.H in AC-only circuits?

A: Yes. All three substitute parts are electrically and mechanically equivalent for AC applications at 2 A, 250 V. They are identical in current rating, voltage rating, package format, response time, and thermal characteristics.

Q: What is the difference between 0225002.HXP, 0225002.MXP, and 0225002.VXP?

A: These three parts are parametrically identical. They differ only in packaging designation and supply chain sourcing. All three meet the same electrical specifications, certifications, and compliance standards.

Q: Why do the substitute parts have a DC voltage rating when the original part does not?

A: The substitute parts are rated for both AC and DC applications (250 V AC, 125 V DC). The original 0225002.H is specified for AC only. This additional DC rating does not affect AC performance and allows the substitute parts to be used in applications requiring DC protection.

Q: Are the substitute parts compatible with existing 2AG fuse holders?

A: Yes. All parts use the 2AG package format (5mm x 15mm) and require a standard 2AG fuse holder. Physical and electrical compatibility is maintained.

Q: What is the significance of the RoHS3 compliance on the substitute parts?

A: ROHS3 compliance indicates the substitute parts meet current European Union Restriction of Hazardous Substances regulations. The original 0225002.H is RoHS non-compliant. For applications subject to RoHS requirements, the substitute parts are the appropriate choice.

Q: Is there a performance difference due to the slight resistance variation (0.049 Ohms vs. 0.0497 Ohms)?

A: No. The resistance difference is negligible (0.0007 Ohms) and does not affect thermal performance, trip characteristics, or circuit operation.

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