Littelfuse 0312007.VXP Glass Cartridge Fuse 7A 250VAC Equivalent & Substitute Parts

Part Overview

The Littelfuse 0312007.VXP is a 7 A, 250 V AC/DC fast-blow glass cartridge fuse in the 312 series, designed for 3AB and 3AG holder applications with dimensions of 1/4" × 1-1/4" (6.35mm × 31.75mm). The part is currently active in production with 992 units in stock. Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative sourcing is required for supply chain optimization, or when design flexibility permits selection from multiple qualified manufacturers meeting identical electrical and mechanical specifications.

Substiute Parts

0312007.VXP

Littelfuse Inc.In Stock: 10110312007.VXP Datasheet

Current PartRFQ

0312007.HXP

Littelfuse Inc.In Stock: 11190312007.HXP Datasheet

Parametric EquivalentRFQ

0312007.MXP

Littelfuse Inc.In Stock: 25680312007.MXP Datasheet

Parametric EquivalentRFQ

0034.5143

SCHURTER Inc.In Stock: 8800034.5143 Datasheet

MFR RecommendedRFQ

AGC-7-R

Eaton - Electronics DivisionIn Stock: 862AGC-7-R Datasheet

Parametric EquivalentRFQ

BK/AGC-7-R

Eaton - Electronics DivisionIn Stock: 3031BK/AGC-7-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0312007.VXP is determined by strict equivalence across the following critical parameters:

• Current Rating: 7 A (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" × 1-1/4" (exact match required)
• Breaking Capacity: 200 A (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Operating Temperature Range: -55°C to 125°C (exact match required)

All substitute parts listed below meet these criteria without exception. Substitutes are classified as parametric equivalents (identical electrical and mechanical specifications from different manufacturers) or manufacturer-recommended equivalents (parts designated by the original manufacturer as direct replacements).

Parameter Comparison

Engineering Selection Recommendations

Littelfuse Series 312 (0312007.HXP, 0312007.MXP): These parts are parametric equivalents from the same manufacturer and series as the primary part. Both are active products with full compliance to CE, CSA, KC, PSE, and UL certifications. Selection from this group provides continuity with the original design source and maintains identical electrical characteristics. Inventory availability is higher for 0312007.MXP (2472 units).

SCHURTER 0034.5143: This part meets all electrical and mechanical substitution criteria with CSA and UL certifications. However, the product status is listed as obsolete, indicating discontinued production. While 820 units remain in stock, this part should be considered only when other active alternatives are unavailable, as future sourcing may become impossible.

Eaton AGC Series (AGC-7-R, BK/AGC-7-R): Both Eaton parts are active products meeting all critical parameters with CSA and UL certifications. The BK/AGC-7-R variant offers the highest inventory availability (3021 units) and ROHS3 compliance. These parts represent cross-manufacturer equivalents suitable for applications where multi-source qualification is required.

Frequently Asked Questions (FAQ)

Q: Can 0312007.HXP and 0312007.MXP be used interchangeably with 0312007.VXP?

A: Yes. All three Littelfuse parts share identical electrical ratings (7 A, 250 V AC), response time (fast blow), package designation (3AB, 3AG), physical dimensions (6.35mm × 31.75mm), breaking capacity (200 A), and operating temperature range (-55°C to 125°C). They are parametric equivalents within the same manufacturer's 312 series.

Q: What is the difference between the Littelfuse and Eaton fuses?

A: The Littelfuse 0312007 series and Eaton AGC series are parametric equivalents meeting identical electrical and mechanical specifications. The primary differences are manufacturer source and approval agency coverage. Littelfuse parts carry CE, CSA, KC, PSE, and UL certifications, while Eaton parts carry CSA and UL certifications. Both are suitable for 3AB and 3AG holder applications.

Q: Why is SCHURTER 0034.5143 listed as obsolete?

A: The 0034.5143 is no longer in active production by SCHURTER. While it meets all electrical and mechanical substitution criteria and inventory is currently available (820 units), the obsolete status indicates that future sourcing from the manufacturer is not guaranteed. This part should be used only when other active alternatives are unavailable.

Q: Are there any dimensional differences between substitute parts?

A: The SCHURTER 0034.5143 has a length specification of 31.80mm compared to 31.75mm for all other parts. This 0.05mm difference is within typical manufacturing tolerance for glass cartridge fuses and does not affect holder compatibility or electrical performance.

Q: Which substitute part has the highest inventory availability?

A: BK/AGC-7-R from Eaton has the highest inventory with 3021 units in stock, followed by 0312007.MXP from Littelfuse with 2472 units.

Q: Can I mix different manufacturers' fuses in the same application?

A: Yes, provided all substitute parts meet the identical electrical and mechanical specifications required by your application. All listed substitutes are qualified for 3AB and 3AG holder applications with 7 A, 250 V AC ratings and fast-blow response characteristics.