Littelfuse 0315.500VXP Equivalent & Substitute Parts

Part Overview

The Littelfuse 0315.500VXP is a 500 mA, 250 V AC/DC slow-blow glass cartridge fuse in 3AB/3AG package format (1/4" x 1-1/4" axial). This component is designed for circuit protection in applications requiring controlled response time characteristics. The part maintains Active product status with full compliance to CE, CSA, and UL approval agencies. Substitute parts are identified when inventory constraints or supply chain requirements necessitate alternative sourcing while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

0315.500VXP

Littelfuse Inc.In Stock: 9410315.500VXP Datasheet

Current PartRFQ

0315.500HXP

Littelfuse Inc.In Stock: 11900315.500HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse 0315.500HXP qualifies as a parametric equivalent to the 0315.500VXP based on identical specifications across all critical electrical and mechanical parameters. Substitution validity is determined by the following criteria:

• Current Rating: 500 mA (identical)
• Voltage Rating (AC): 250 V (identical)
• Response Time: Slow Blow (identical)
• Fuse Type: Cartridge, Glass (identical)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (identical)
• Breaking Capacity @ Rated Voltage: 35 A (identical)
• Melting I²t: 2.55 (identical)
• Operating Temperature Range: -55°C ~ 125°C (identical)
• DC Cold Resistance: 1.26 Ohms (identical)
• Mounting Type: Through Hole (identical)

Both parts are manufactured by Littelfuse Inc., belong to the 315 series, maintain Active product status, and carry identical regulatory approvals (CE, CSA, UL). The substitute part is suitable for direct replacement in applications where the original part number is unavailable.

Parameter Comparison

Engineering Selection Recommendations

Both the 0315.500VXP and 0315.500HXP maintain Active product status with identical regulatory compliance certifications (CE, CSA, UL). Selection between these parts should be based on availability and supply chain requirements. Both parts satisfy ROHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental and regulatory standards. The electrical and mechanical specifications are identical, permitting direct substitution without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the 0315.500HXP replace the 0315.500VXP in existing designs?

A: Yes. The 0315.500HXP is a parametric equivalent with identical current rating (500 mA), voltage rating (250 V AC), response time (Slow Blow), package format (3AB, 3AG, 1/4" x 1-1/4" axial), and all electrical characteristics. Direct substitution is permissible.

Q: Are there any differences in regulatory approvals between these parts?

A: No. Both parts carry identical approvals: CE, CSA, and UL. Both are ROHS3 compliant and REACH unaffected.

Q: What determines whether a fuse can be substituted for the 0315.500VXP?

A: Substitution validity requires matching specifications across current rating, voltage rating, response time classification, fuse type (cartridge, glass), package format (3AB, 3AG, 1/4" x 1-1/4" axial), breaking capacity, melting I²t, operating temperature range, and DC cold resistance.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical dimensions: 0.275" diameter x 1.275" length (6.99 mm x 32.39 mm).

Q: Can these fuses be used in AC and DC applications?

A: Yes. Both parts are rated for 250 V AC/DC operation with identical DC cold resistance (1.26 Ohms) and operating temperature range (-55°C ~ 125°C).