Littelfuse 0225.375HXP Glass Cartridge Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0225.375HXP is a 375 mA fast-blow glass cartridge fuse rated for 250 V AC and 125 V DC operation. This component is designed for use in 2AG holder assemblies and provides circuit protection in applications requiring fast response characteristics. The part maintains Active product status with full compliance to CE, CSA, and UL approval agencies. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity.

Substiute Parts

0225.375HXP

Littelfuse Inc.In Stock: 9980225.375HXP Datasheet

Current PartRFQ

0225.375MXP

Littelfuse Inc.In Stock: 15250225.375MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse 0225.375MXP qualifies as a parametric equivalent to the 0225.375HXP based on the following substitution criteria:

Electrical Parameters (Identical):

• Current Rating: 375 mA
• Voltage Rating - AC: 250 V
• Voltage Rating - DC: 125 V
• Response Time: Fast Blow
• Breaking Capacity @ Rated Voltage: 35A AC, 10kA DC
• Melting I²t: 0.171

Mechanical Parameters (Identical):

• Fuse Type: Cartridge, Glass
• Package / Case: 2AG, 5mm x 15mm
• Size / Dimension: 0.177" Dia x 0.570" L (4.50mm x 14.48mm)
• Mounting Type: Requires Holder

Compliance & Environmental (Identical):

• Approval Agencies: CE, CSA, UL
• Operating Temperature Range: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• DC Cold Resistance: 0.395 Ohms

Parameter Comparison

Engineering Selection Recommendations

Both the 0225.375HXP and 0225.375MXP maintain Active product status and carry identical certifications from CE, CSA, and UL approval agencies. Selection between these parts may be based on inventory availability, supply chain lead times, or procurement preferences, as all electrical, mechanical, and compliance parameters are equivalent. Both parts satisfy ROHS3 compliance requirements and REACH unaffected status, making them suitable for applications requiring environmental regulatory adherence.

Frequently Asked Questions (FAQ)

Q: Can the 0225.375MXP be used as a direct replacement for the 0225.375HXP?

A: Yes. Both parts share identical current ratings (375 mA), voltage ratings (250 V AC / 125 V DC), response characteristics (fast blow), and mechanical dimensions (2AG, 5mm x 15mm). They are electrically and mechanically interchangeable.

Q: Are there any differences in holder compatibility?

A: No. Both parts require the same 2AG holder assembly. The physical dimensions (0.177" Dia x 0.570" L) are identical, ensuring compatibility with existing holder installations.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the 0225.375HXP and 0225.375MXP carry CE, CSA, and UL approvals. Both are ROHS3 compliant and REACH unaffected.

Q: What is the significance of the melting I²t value?

A: The melting I²t of 0.171 defines the thermal energy required to melt the fuse element. This value is identical for both parts, confirming equivalent protection characteristics and response time behavior.

Q: Are there temperature operating range differences?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C, with the same DC cold resistance of 0.395 Ohms.

Q: Which part should be selected for new designs?

A: Selection should be based on current inventory availability and supply chain considerations. Both parts are Active and fully equivalent for all technical and compliance requirements.