SCHURTER 0034.5204 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.5204 is a 63 mA, 250 V AC/DC slow-blow glass cartridge fuse in 3AB/3AG package format (1/4" x 1-1/4"). This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and repair applications. The fuse requires a compatible holder for installation and is designed for circuit protection in low-current applications with extended response characteristics.

Substiute Parts

0034.5204

SCHURTER Inc.In Stock: 8640034.5204 Datasheet

Current PartRFQ

0313.062HXP

Littelfuse Inc.In Stock: 10460313.062HXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 0034.5204 is determined by the following critical parameters:

• Current Rating: 62–63 mA (tolerance within standard fuse rating bands)
• Voltage Rating: 250 V AC minimum
• Fuse Type: Cartridge, Glass construction
• Response Time: Slow Blow characteristic
• Package / Case: 3AB, 3AG format, 1/4" x 1-1/4" physical dimensions
• Breaking Capacity: 35 A @ rated voltage
• Operating Temperature: -55°C ~ 125°C range
• Approval Certifications: CSA and/or UL compliance

The Littelfuse 0313.062HXP meets all substitution criteria, with a current rating of 62 mA (within acceptable tolerance of the 63 mA original specification) and identical electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Littelfuse 0313.062HXP is a direct functional equivalent to the obsolete SCHURTER 0034.5204. Selection is based on the following engineering criteria:

• Current Rating Tolerance: The 62 mA rating of the Littelfuse component falls within the acceptable tolerance band for the 63 mA specification, consistent with standard fuse rating practices.
• Electrical Specifications: Voltage rating, breaking capacity, and response time are identical across both components.
• Physical Compatibility: Both fuses share identical package dimensions and 3AB/3AG holder compatibility, ensuring direct mechanical substitution without modification to existing fuse holders or circuit board layouts.
• Regulatory Compliance: The Littelfuse part maintains CSA and UL certifications (with additional CE approval), satisfying all original approval requirements. Both components are ROHS3 compliant and REACH unaffected.
• Product Status: The Littelfuse 0313.062HXP is active in production, ensuring long-term availability and supply chain continuity compared to the obsolete SCHURTER part.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 0313.062HXP be used as a direct replacement for the SCHURTER 0034.5204?

A: Yes. Both components share identical voltage ratings, fuse type, response characteristics, package format, and physical dimensions. The 1 mA difference in current rating (62 mA vs. 63 mA) is within standard fuse rating tolerances and does not affect functional compatibility.

Q: Are there any holder compatibility issues when substituting these fuses?

A: No. Both the SCHURTER 0034.5204 and Littelfuse 0313.062HXP use the 3AB/3AG package format with identical 1/4" x 1-1/4" dimensions. They are mechanically interchangeable in any holder designed for this package specification.

Q: Does the Littelfuse part meet the same regulatory certifications?

A: Yes. The Littelfuse 0313.062HXP carries CSA and UL certifications, matching the original SCHURTER part's approval agencies. The Littelfuse component also includes CE approval, providing additional regulatory coverage.

Q: What is the significance of the current rating difference (63 mA vs. 62 mA)?

A: Fuse current ratings are standardized in discrete bands. A 1 mA difference between 62 mA and 63 mA falls within the normal tolerance range for fuse specifications and does not constitute a functional difference for circuit protection purposes.

Q: Is the Littelfuse part actively manufactured?

A: Yes. The Littelfuse 0313.062HXP is classified as active product status, ensuring ongoing availability and supply chain reliability for future procurement and replacement needs.