Littelfuse 022901.5H Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 022901.5H is a 1.5 A, 250 V AC glass cartridge fuse in 2AG package format (5mm x 15mm). This fuse is classified as obsolete, requiring identification of active equivalent alternatives for continued circuit protection applications. The part requires a dedicated fuse holder for installation and operates across a temperature range of -55°C to 125°C with slow-blow response characteristics.

Key Parameters

Parameter	Value
Current Rating	1.5 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Glass
Package / Case	2AG, 5mm x 15mm
Response Time	Slow Blow
Mounting Type	Requires Holder
Operating Temperature	-55°C ~ 125°C
Melting I²t	15
DC Cold Resistance	0.107 Ohms

Substitute Part Grouping Explanation

Substitution eligibility for the 022901.5H is determined by the following critical parameters:

Current Rating: Must be 1.5 A
Voltage Rating (AC): Must be 250 V
Fuse Type: Must be Cartridge, Glass
Package / Case: Must be 2AG, 5mm x 15mm
Response Time: Must be Slow Blow
Mounting Type: Must require Holder
Operating Temperature Range: Must support -55°C ~ 125°C
Melting I²t: Must be 15

All substitute parts listed below meet these core electrical and mechanical parameters. Additional parameters such as DC voltage rating, breaking capacity, and compliance certifications may vary between substitutes and should be evaluated based on specific application requirements.

Parameter Comparison

Parameter	022901.5H	022901.5HXP	022901.5HXSP	022901.5MXP	022901.5MXSP	022901.5VXP	022901.5VXSP
Current Rating (A)	1.5	1.5	1.5	1.5	1.5	1.5	1.5
Voltage Rating - AC (V)	250	250	250	250	250	250	250
Voltage Rating - DC (V)	—	125	125	125	125	125	125
Fuse Type	Cartridge, Glass	Cartridge, Glass	Cartridge, Glass	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	2AG, 5mm x 15mm	2AG, 5mm x 15mm	2AG, 5mm x 15mm
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Breaking Capacity @ Rated Voltage	100A	35A AC, 10kA DC	35A AC, 10kA DC	35A AC, 10kA DC	35A AC, 10kA DC	100A AC, 10kA DC	100A AC, 10kA DC
Melting I²t	15	15	15	15	15	15	15
DC Cold Resistance (Ohms)	0.107	0.1077	0.1077	0.1077	0.1077	0.1077	0.1077
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	CSA, METI, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL	CE, CSA, PSE, UL

Engineering Selection Recommendations

All substitute parts listed are active products with current manufacturing status, addressing the obsolescence of the 022901.5H. Selection among substitutes should be based on the following criteria:

For applications requiring AC-only operation with standard breaking capacity: 022901.5HXP, 022901.5HXSP, 022901.5MXP, and 022901.5MXSP are suitable. These parts provide 35A AC breaking capacity and are appropriate for standard AC circuit protection circuits.

For applications requiring enhanced breaking capacity: 022901.5VXP and 022901.5VXSP provide 100A AC breaking capacity, matching the original 022901.5H specification. These parts are recommended when higher fault current withstand capability is required.

For applications requiring DC circuit protection: All substitute parts include 125V DC rating and 10kA DC breaking capacity, providing expanded functionality beyond the original part's AC-only specification.

For regulatory compliance: All substitute parts are ROHS3 compliant and carry CE, CSA, PSE, and UL certifications, providing broader international regulatory coverage compared to the original part's CSA, METI, and UL approvals.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the 022901.5H with any of the listed substitutes? A: Yes, all listed substitutes are mechanically and electrically compatible. They share identical current rating (1.5 A), AC voltage rating (250 V), package format (2AG, 5mm x 15mm), response time (Slow Blow), and operating temperature range (-55°C to 125°C). Physical installation in existing fuse holders is identical.

Q: What is the difference between the substitute parts? A: The primary differences are breaking capacity and packaging designation. Parts 022901.5VXP and 022901.5VXSP provide 100A AC breaking capacity, matching the original part. Parts 022901.5HXP, 022901.5HXSP, 022901.5MXP, and 022901.5MXSP provide 35A AC breaking capacity. All substitutes include 125V DC rating and 10kA DC breaking capacity. Packaging designations (HXP, HXSP, MXP, MXSP, VXP, VXSP) indicate different distribution channels and certifications but do not affect electrical performance.

Q: Does the addition of DC voltage rating on substitute parts affect AC-only applications? A: No. The 125V DC rating on substitute parts is an additional capability that does not impact AC circuit operation. AC applications will function identically to the original part.

Q: Are all substitutes RoHS compliant? A: Yes. All substitute parts are ROHS3 compliant, whereas the original 022901.5H is RoHS non-compliant. This provides improved environmental and regulatory compliance for new designs and replacements.

Q: Which substitute should I select for maximum compatibility with the original part? A: 022901.5VXP or 022901.5VXSP are recommended for maximum compatibility, as they maintain the 100A AC breaking capacity of the original 022901.5H while providing active product status and enhanced compliance certifications.

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