Littelfuse 0324012.VXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0324012.VXP is a 12 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation. This through-hole mounted component is designed for fast-blow response in circuit protection applications. The part maintains active product status with full compliance to international safety standards including CE, CSA, KC, PSE, and UL certifications. Substitute parts are identified based on identical electrical ratings, mechanical dimensions, and approval agency compliance to ensure direct interchangeability in existing circuit designs.

Substiute Parts

0324012.VXP

Littelfuse Inc.In Stock: 11440324012.VXP Datasheet

Current PartRFQ

0324012.HXP

Littelfuse Inc.In Stock: 11410324012.HXP Datasheet

Parametric EquivalentRFQ

0324012.MXP

Littelfuse Inc.In Stock: 108730324012.MXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0324012.VXP are qualified based on the following critical parameters that determine direct interchangeability:

• Current Rating: 12 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Voltage Rating - DC: 125 V (exact match required)
• Fuse Type: Cartridge, Ceramic (exact match required)
• Response Time: Fast 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 @ Rated Voltage: 750 A AC, 10 kA DC (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• DC Cold Resistance: 0.0076 Ohms (exact match required)
• Melting I²t: 570 (exact match required)

The substitute parts 0324012.HXP and 0324012.MXP meet all these criteria and are manufactured by Littelfuse Inc. within the same 324 series. Both maintain active product status and comply with applicable international safety standards.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0324012.VXP, 0324012.HXP, and 0324012.MXP—are direct parametric equivalents suitable for interchangeable use in circuit protection applications requiring 12 A ceramic cartridge fuses at 250 V AC / 125 V DC ratings.

The 0324012.VXP maintains certifications for CE, CSA, KC, PSE, and UL. The 0324012.HXP and 0324012.MXP maintain certifications for CE, CSA, K-MARK, and UL. Selection between these parts should be based on regional compliance requirements and certification scope needed for the end application.

All parts are manufactured by Littelfuse Inc., maintain active product status, and comply with ROHS3 and REACH requirements. Inventory availability varies: 0324012.VXP (1091 pcs), 0324012.HXP (1089 pcs), and 0324012.MXP (10781 pcs).

Frequently Asked Questions (FAQ)

Q: Can 0324012.HXP and 0324012.MXP be used interchangeably with 0324012.VXP?

A: Yes. All three parts share identical electrical ratings (12 A, 250 V AC, 125 V DC), mechanical dimensions (0.275" Dia x 1.288" L), response characteristics (Fast Blow), and breaking capacity (750 A AC, 10 kA DC). They are direct parametric equivalents.

Q: What is the difference between these substitute parts?

A: The primary difference is in approval agency certifications. The 0324012.VXP includes KC and PSE certifications in addition to CE, CSA, and UL. The 0324012.HXP and 0324012.MXP include K-MARK certification instead. All parts maintain CE, CSA, and UL compliance.

Q: Are the physical dimensions identical across all three parts?

A: Yes. All three parts use the 3AB, 3AG package format with dimensions of 0.275" Dia x 1.288" L (6.99 mm x 32.72 mm). They are mechanically interchangeable in through-hole mounting applications.

Q: Do all substitute parts meet the same environmental and compliance standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and rated for operation across -55°C to 125°C. All maintain MSL 1 (Unlimited) moisture sensitivity classification.

Q: Which part should I select based on availability?

A: The 0324012.MXP has the highest inventory level at 10781 pcs. The 0324012.VXP and 0324012.HXP have comparable inventory levels at 1091 pcs and 1089 pcs respectively. Selection should prioritize application-specific certification requirements over availability unless supply constraints exist.