SCHURTER 0034.7313 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.7313 is a 630 mA, 250 V AC/DC board mount fuse with slow blow response characteristics, designed for through hole radial mounting in vertical orientation. This component belongs to the MSTU 250 series and is currently in active production status. Substitute parts are identified when equivalent electrical ratings, mechanical compatibility, and regulatory compliance can be maintained across different manufacturers.

Substiute Parts

0034.7313

SCHURTER Inc.In Stock: 19040034.7313 Datasheet

Current PartRFQ

37406300000

Littelfuse Inc.In Stock: 192937406300000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 0034.7313 is determined by strict equivalence across the following critical parameters:

• Current Rating: 630 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Mounting Type: Through Hole (exact match required)
• Package / Case: Radial, Can, Vertical (exact match required)
• Breaking Capacity @ Rated Voltage: 50A (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

The Littelfuse 37406300000 meets all substitution criteria. Minor dimensional variations in height (0.315" vs 0.335") remain within acceptable mechanical tolerances for board mount applications. Both parts carry equivalent regulatory approvals and maintain identical electrical performance specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the SCHURTER 0034.7313 and Littelfuse 37406300000 are active production components with equivalent electrical specifications and regulatory compliance. The SCHURTER part carries cULus approval, while the Littelfuse equivalent carries both CSA and cULus approvals, providing broader certification coverage. Both components maintain ROHS3 compliance and identical operating temperature ranges. Selection between these parts may be based on supply availability, lead time, or existing manufacturer qualification requirements within your design documentation.

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 37406300000 directly replace the SCHURTER 0034.7313 in existing designs?

A: Yes. Both parts share identical electrical ratings (630 mA, 250 V AC/DC), response characteristics (Slow Blow), mounting configuration (Through Hole, Radial, Can, Vertical), and breaking capacity (50A). The height difference of 0.020" (0.50mm) is within acceptable mechanical tolerances for board mount fuse applications.

Q: Are there any compliance differences between these parts?

A: The SCHURTER 0034.7313 carries cULus approval. The Littelfuse 37406300000 carries both CSA and cULus approvals. Both maintain ROHS3 compliance and REACH Unaffected status. The additional CSA certification on the Littelfuse part may provide expanded market acceptance in certain regions.

Q: What is the significance of the Melting I²t difference between these parts?

A: The Melting I²t values (2.24 for SCHURTER vs 0.75 for Littelfuse) reflect internal thermal characteristics of each fuse design. Both parts maintain identical current ratings, voltage ratings, and response time classifications. These values are manufacturer-specific design parameters and do not affect substitution eligibility when all electrical and mechanical specifications match.

Q: Are packaging and inventory considerations relevant to substitution?

A: Both parts are supplied in Cut Tape (CT) packaging and are available in active inventory. Packaging format does not affect electrical or mechanical compatibility. Inventory levels may influence procurement decisions but do not determine substitution eligibility.