Littelfuse 0225007.H Glass Cartridge Fuse 7A 125VAC 2AG Equivalent & Substitute Parts

Part Overview

The Littelfuse 0225007.H is a 7A 125VAC 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. The part requires a dedicated fuse holder for installation and operates across a temperature range of -55°C to 125°C with a breaking capacity of 10kA at rated voltage.

Substiute Parts

0225007.H

Littelfuse Inc.In Stock: 9910225007.H Datasheet

Current PartRFQ

0225007.HXUP

LittelfuseIn Stock: 8850225007.HXUP Datasheet

DirectRFQ

0225007.MXUP

Littelfuse Inc.In Stock: 12970225007.MXUP Datasheet

Parametric EquivalentRFQ

0225007.VXUP

Littelfuse Inc.In Stock: 7330225007.VXUP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 0225007.H is based on strict electrical and mechanical parameter matching across the Littelfuse 225 series. The following criteria determine valid equivalency:

Critical Matching Parameters:

• Current Rating: 7 A (exact match required)
• Voltage Rating: 125 V AC (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 2AG, 5mm x 15mm (exact match required)
• Response Time: Fast Blow (exact match required)
• Melting I²t: 40 (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

All three substitute parts (0225007.HXUP, 0225007.MXUP, 0225007.VXUP) meet these criteria and are classified as parametric equivalents within the Littelfuse 225 series. These parts are currently in active production status, distinguishing them from the obsolete main part number.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (0225007.HXUP, 0225007.MXUP, 0225007.VXUP) provide direct functional equivalency to the obsolete 0225007.H across all critical electrical and mechanical parameters. Selection among these active alternatives should be based on the following factors:

Product Status: All substitute parts are in active production, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Compliance Posture: The substitute parts carry ROHS3 compliance certification, whereas the main part is RoHS non-compliant. This distinction is significant for applications subject to environmental regulations. The substitute parts also include PSE certification in addition to the CSA, UL, and CE certifications present on the main part.

Inventory Availability: Current stock levels are 0225007.MXUP (1283 pcs), 0225007.VXUP (709 pcs), and 0225007.HXUP (860 pcs), providing multiple sourcing options.

Breaking Capacity Difference: The substitute parts specify 500A breaking capacity compared to 10kA for the main part. This represents a reduction in fault current handling capability and must be evaluated against circuit protection requirements.

DC Cold Resistance: Substitute parts exhibit 0.013 Ohms compared to 0.0123 Ohms for the main part, representing a marginal increase in resistance.

Frequently Asked Questions (FAQ)

Q: Can 0225007.HXUP, 0225007.MXUP, and 0225007.VXUP be used interchangeably with 0225007.H?

A: Yes, these parts are parametric equivalents meeting identical electrical and mechanical specifications for current rating (7A), voltage rating (125V AC), fuse type (cartridge glass), package format (2AG, 5mm x 15mm), response time (fast blow), and operating temperature range (-55°C to 125°C). All require the same fuse holder for installation.

Q: What is the significance of the breaking capacity difference between the main part and substitutes?

A: The main part specifies 10kA breaking capacity while substitutes specify 500A. Breaking capacity defines the maximum fault current the fuse can safely interrupt. Circuit protection design must account for this parameter based on available fault current in the application.

Q: Are the substitute parts RoHS compliant?

A: Yes, all three substitute parts (0225007.HXUP, 0225007.MXUP, 0225007.VXUP) carry ROHS3 compliance certification. The main part 0225007.H is RoHS non-compliant.

Q: Do the substitute parts carry the same certifications as the main part?

A: The substitute parts carry expanded certification including CE, CSA, PSE, and UL. The main part carries CSA, METI, and UL certifications. All substitute parts maintain UL and CSA certifications present on the main part.

Q: What is the difference in DC cold resistance between the main part and substitutes?

A: The main part exhibits 0.0123 Ohms while substitutes exhibit 0.013 Ohms. This represents a 5.7% increase in resistance and may be relevant in low-voltage, high-current applications where fuse resistance contributes to circuit performance.

Q: Are all substitute parts currently available?

A: Yes, all three substitute parts are in active production status with current inventory: 0225007.MXUP (1283 pcs), 0225007.VXUP (709 pcs), and 0225007.HXUP (860 pcs).

Q: Can I use these fuses without a holder?

A: No, all parts including the main part and substitutes require a dedicated fuse holder for installation. The mounting type is specified as "Requires Holder" for all variants.