Littelfuse 0325020.VXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0325020.VXP is a 20 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation with slow-blow response characteristics. This through-hole component is designed for circuit protection in applications requiring reliable overcurrent interruption. The part maintains active product status with full regulatory compliance across multiple approval agencies including UL, CSA, and CE certification. Substitute parts are identified to provide alternative sourcing options when the primary component becomes unavailable or when inventory constraints require qualified alternatives.

Substiute Parts

0325020.VXP

Littelfuse Inc.In Stock: 8680325020.VXP Datasheet

Current PartRFQ

8020.0605.PT

SCHURTER Inc.In Stock: 20438020.0605.PT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Littelfuse 0325020.VXP is determined by strict equivalence across the following critical parameters:

• Current Rating: 20 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Fuse Type: Cartridge, Ceramic (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)
• RoHS Status: ROHS3 Compliant (compliance requirement)

The SCHURTER 8020.0605.PT meets all primary substitution criteria with identical current rating, AC voltage rating, ceramic cartridge construction, slow-blow response, and standard 3AB/3AG package dimensions. Both components are through-hole mounted and maintain ROHS3 compliance. The substitute part is qualified as a direct functional equivalent for circuit protection applications requiring these specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Littelfuse 0325020.VXP and SCHURTER 8020.0605.PT are active products with current regulatory compliance. The Littelfuse component carries broader approval agency certifications (CE, CSA, KC, PSE, UL) compared to the SCHURTER part (cURus). The Littelfuse part specifies a wider operating temperature range (-55°C to 125°C) and explicit DC voltage rating of 125 V, while the SCHURTER substitute operates within -40°C to 85°C. Both components meet ROHS3 compliance requirements and maintain equivalent current ratings, AC voltage ratings, and package specifications. Selection between these parts should be based on application-specific temperature requirements and required regulatory certifications for the end-use market.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 8020.0605.PT be used as a direct replacement for the Littelfuse 0325020.VXP?

A: The SCHURTER part meets the primary functional substitution criteria: identical 20 A current rating, 250 V AC voltage rating, ceramic cartridge construction, slow-blow response, and 3AB/3AG package dimensions. Both are through-hole mounted and ROHS3 compliant. However, the Littelfuse part specifies explicit 125 V DC rating and broader temperature range (-55°C to 125°C) versus the SCHURTER part (-40°C to 85°C). Substitution is appropriate when application requirements fall within the SCHURTER operating parameters.

Q: What are the key differences in breaking capacity between these fuses?

A: The Littelfuse 0325020.VXP provides 400 A AC and 600 A DC breaking capacity at rated voltage. The SCHURTER 8020.0605.PT specifies 500 A breaking capacity. Both exceed typical circuit protection requirements for 20 A rated applications.

Q: Are the physical dimensions identical?

A: Both components use the standard 3AB/3AG package with 1/4" x 1-1/4" (Axial) dimensions. The Littelfuse part measures 0.275" Dia x 1.288" L (6.99mm x 32.72mm), while the SCHURTER part measures 0.270" Dia x 1.291" L (6.85mm x 32.80mm). These minor dimensional variations remain within standard package tolerances for through-hole mounting compatibility.

Q: Which certifications should I verify for my application?

A: The Littelfuse 0325020.VXP carries CE, CSA, KC, PSE, and UL certifications. The SCHURTER 8020.0605.PT carries cURus certification. Verify that the selected part's certification portfolio aligns with your target market and application requirements.

Q: What is the significance of the melting I²t values?

A: The Littelfuse part specifies 575 melting I²t, while the SCHURTER part specifies 750 melting I²t. These values indicate the thermal energy required to melt the fuse element. The higher value for the SCHURTER part reflects slightly different thermal characteristics but does not affect functional equivalence for standard 20 A circuit protection applications.