Littelfuse 0313030.VXP Glass Cartridge Fuse 30A 32VAC Equivalent & Substitute Parts

Part Overview

The Littelfuse 0313030.VXP is a 30A 32VAC slow-blow glass cartridge fuse designed for AC/DC applications requiring holder-mounted protection. This fuse is classified as Active product status and is UL-approved for industrial and commercial circuit protection. Equivalent and substitute parts are identified when identical electrical ratings, mechanical dimensions, and performance characteristics are maintained across the product line.

Substiute Parts

0313030.VXP

Littelfuse Inc.In Stock: 8190313030.VXP Datasheet

Current PartRFQ

0313030.HXP

Littelfuse Inc.In Stock: 10590313030.HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 0313030.VXP is determined by strict equivalence across the following critical parameters:

• Current Rating: 30 A (exact match required)
• Voltage Rating (AC): 32 V (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" (exact match required)
• Breaking Capacity @ Rated Voltage: 300A (exact match required)
• Melting I²t: 26900 (exact match required)
• DC Cold Resistance: 0.0012 Ohms (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Approval Agency: UL (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

The substitute part 0313030.HXP meets all these criteria and is therefore a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The Littelfuse 0313030.HXP is a direct parametric equivalent to the 0313030.VXP. Both parts are manufactured by Littelfuse Inc., maintain Active product status, and carry identical electrical, mechanical, and thermal specifications. Both parts are UL-approved and ROHS3 compliant, meeting the same regulatory and environmental standards. Selection between these two part numbers may be based on inventory availability or supply chain considerations, as no technical differentiation exists between them.

Frequently Asked Questions (FAQ)

Q: Can the 0313030.HXP be used as a direct replacement for the 0313030.VXP?

A: Yes. The 0313030.HXP is a direct parametric equivalent with identical current rating (30A), voltage rating (32VAC), fuse type (cartridge glass), response time (slow blow), package dimensions (3AB, 3AG, 1/4" x 1-1/4"), breaking capacity (300A), melting I²t (26900), and operating temperature range (-55°C ~ 125°C). Both parts are UL-approved and ROHS3 compliant.

Q: Are there any mechanical compatibility differences between these parts?

A: No. Both parts share identical package specifications (3AB, 3AG, 1/4" x 1-1/4") and physical dimensions (0.250" Dia x 1.250" L / 6.35mm x 31.75mm). Both require the same holder type and mount identically in circuit protection applications.

Q: What determines substitution eligibility for this fuse?

A: Substitution is determined by exact equivalence across current rating, voltage rating, fuse type, response time, package case, breaking capacity, melting I²t, DC cold resistance, operating temperature range, and regulatory approvals. Any deviation in these parameters disqualifies a part from substitution.

Q: Are both parts suitable for the same temperature operating range?

A: Yes. Both the 0313030.VXP and 0313030.HXP operate across the identical temperature range of -55°C to 125°C, ensuring equivalent thermal performance in all specified environments.

Q: What is the significance of the different part number suffixes (VXP vs. HXP)?

A: The suffix designations reflect internal Littelfuse product line variations. However, the parametric specifications, electrical performance, and mechanical compatibility are identical, making them interchangeable for circuit protection applications.