Littelfuse 0315003.VXP Glass Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0315003.VXP is a 3 A, 250 V AC/DC slow-blow glass cartridge fuse designed for through-hole mounting in 3AB and 3AG package configurations. This fuse is classified as Active product status and is widely used in industrial and consumer electronics applications requiring overcurrent protection. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and approval certifications match the original specification, ensuring direct interchangeability without circuit redesign.

Substiute Parts

0315003.VXP

Littelfuse Inc.In Stock: 9550315003.VXP Datasheet

Current PartRFQ

0315003.HXP

Littelfuse Inc.In Stock: 9100315003.HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0315003.VXP are identified based on strict equivalence across the following critical parameters:

• Current Rating: 3 A (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity: 100 A (exact match required)
• Melting I²t: 200 (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Physical Dimensions: 0.275" Dia x 1.275" L (exact match required)
• DC Cold Resistance: 0.0593 Ohms (exact match required)
• Approval Certifications: CE, CSA, PSE, UL (minimum required)

Only parts meeting all these criteria are classified as direct substitutes. Deviations in any parameter disqualify a part from this category.

Parameter Comparison

Engineering Selection Recommendations

The 0315003.HXP is a direct parametric equivalent to the 0315003.VXP. Both parts are manufactured by Littelfuse Inc., carry Active product status, and meet identical electrical and mechanical specifications. Both parts maintain ROHS3 compliance and hold equivalent international approval certifications (CE, CSA, PSE, UL). The substitution is valid for all applications where the 0315003.VXP is specified. Selection between these parts may be based on inventory availability or lead time considerations, as no technical differentiation exists between them.

Frequently Asked Questions (FAQ)

Q: Can the 0315003.HXP be used as a direct replacement for the 0315003.VXP?

A: Yes. Both parts are identical in all critical electrical parameters (3 A, 250 V AC, slow-blow response), mechanical dimensions (0.275" Dia x 1.275" L), and approval certifications. Direct substitution is valid without circuit modification.

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

A: Both parts hold CE, CSA, PSE, and UL certifications. The 0315003.VXP includes KC approval, while the 0315003.HXP includes K-MARK approval. Both certifications are equivalent for international compliance purposes.

Q: What parameters must match for a fuse to be considered a substitute for the 0315003.VXP?

A: Current rating (3 A), voltage rating (250 V AC), fuse type (cartridge, glass), response time (slow blow), package configuration (3AB, 3AG, 1/4" x 1-1/4"), mounting type (through hole), breaking capacity (100 A), melting I²t (200), operating temperature range (-55°C ~ 125°C), and physical dimensions (0.275" Dia x 1.275" L) must all match exactly.

Q: Can I use a fast-blow fuse as a substitute?

A: No. The 0315003.VXP is specified as slow-blow. Fast-blow fuses have different thermal characteristics and will not provide equivalent circuit protection.

Q: Are both parts RoHS compliant?

A: Yes. Both the 0315003.VXP and 0315003.HXP are ROHS3 compliant.