Littelfuse 0325003.VXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0325003.VXP is a 3 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation. This through-hole mounted component is designed for slow-blow response characteristics and is housed in a 3AB/3AG package format (1/4" x 1-1/4" axial). The part maintains active product status with full compliance to international safety standards including UL, CSA, CE, KC, and PSE certifications. Substitute parts are identified when they maintain identical electrical ratings, mechanical dimensions, response characteristics, and approval certifications.

Substiute Parts

0325003.VXP

Littelfuse Inc.In Stock: 7750325003.VXP Datasheet

Current PartRFQ

0325003.HXP

Littelfuse Inc.In Stock: 12150325003.HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0325003.VXP is determined by strict equivalence across the following critical parameters:

• Current Rating: 3 A (exact match required)
• Voltage Ratings: 250 V AC and 125 V DC (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Characteristic: Slow Blow (exact match required)
• Package Format: 3AB/3AG, 1/4" x 1-1/4" axial (exact match required)
• Mounting Configuration: Through Hole (exact match required)
• Breaking Capacity: 100A AC, 10kA DC (exact match required)
• Thermal Operating Range: -55°C ~ 125°C (exact match required)
• Physical Dimensions: 0.275" Dia x 1.288" L (exact match required)
• DC Cold Resistance: 0.0605 Ohms (exact match required)
• Melting I²t: 200 (exact match required)
• Regulatory Compliance: All approval agencies must be present or equivalent

The substitute part 0325003.HXP meets all these criteria and is therefore a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the 0325003.VXP and 0325003.HXP are active products manufactured by Littelfuse Inc. with identical electrical and mechanical specifications. The substitute part 0325003.HXP carries equivalent regulatory approvals, with K-MARK certification providing equivalent coverage to KC certification for the same markets. Both parts maintain full ROHS3 compliance and are suitable for applications requiring 3 A protection at 250 V AC / 125 V DC with slow-blow response characteristics. Selection between these parts may be based on inventory availability or supply chain considerations, as they are functionally and mechanically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can 0325003.HXP be used as a direct replacement for 0325003.VXP?

A: Yes. Both parts are identical in all critical electrical parameters (current rating, voltage ratings, response time, breaking capacity, and melting I²t), mechanical dimensions (3AB/3AG package, 1/4" x 1-1/4" axial), and regulatory compliance. They are direct parametric equivalents.

Q: Are there differences in the approval certifications between these parts?

A: The main part carries CE, CSA, KC, PSE, and UL certifications. The substitute carries CE, CSA, K-MARK, PSE, and UL certifications. K-MARK is equivalent to KC for the same geographic markets. Both parts meet the same international safety standards.

Q: What determines if a fuse can substitute for the 0325003.VXP?

A: A substitute must match all of the following: 3 A current rating, 250 V AC and 125 V DC voltage ratings, ceramic cartridge construction, slow-blow response, 3AB/3AG package format, 1/4" x 1-1/4" dimensions, through-hole mounting, 100A AC / 10kA DC breaking capacity, 0.0605 Ohms DC cold resistance, 200 melting I²t, and -55°C to 125°C operating temperature range.

Q: Can fuses with different response times (fast-blow vs. slow-blow) be substituted?

A: No. Response time is a critical parameter that determines circuit protection behavior. Only slow-blow fuses are equivalent to the 0325003.VXP.

Q: Are there any dimensional compatibility concerns with the 3AB/3AG package?

A: No. Both parts share identical dimensions of 0.275" diameter by 1.288" length (6.99mm x 32.72mm) and are designed for the same through-hole mounting footprint.