SCHURTER 0034.7323 Board Mount Fuse - Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.7323 is a 6.3 A, 250 V AC/DC board mount fuse with slow blow response characteristics, designed for through-hole radial mounting in vertical orientation. This fuse is classified as active product status and is ROHS3 compliant. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives meeting identical or enhanced electrical and mechanical specifications.

Substiute Parts

0034.7323

SCHURTER Inc.In Stock: 16280034.7323 Datasheet

Current PartRFQ

0034.6983

SCHURTER Inc.In Stock: 15840034.6983 Datasheet

Parametric EquivalentRFQ

37416300000

Littelfuse Inc.In Stock: 721437416300000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCHURTER 0034.7323 are qualified based on the following critical parameters that must remain constant or be enhanced:

• Current Rating: 6.3 A (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)
• Size / Dimension: 8.50mm diameter (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match or wider range acceptable)

Substitutes are categorized as follows:

Parametric Equivalent: SCHURTER 0034.6983 matches all critical electrical and mechanical parameters with enhanced breaking capacity (100A vs. 50A) and expanded approval certifications.

Similar Manufacturer Part: Littelfuse 37416300000 matches all critical electrical and mechanical parameters with identical breaking capacity (50A) and equivalent certifications, with minor height variation (8.00mm vs. 8.50mm).

Parameter Comparison

Engineering Selection Recommendations

SCHURTER 0034.6983 is the primary parametric equivalent. This part maintains identical electrical specifications (6.3 A, 250 V, slow blow response) and mechanical form factor while providing enhanced breaking capacity (100A vs. 50A). The expanded approval certifications (CQC, cURus, PSE/JET, VDE) provide broader regulatory acceptance across international markets. This part is suitable for direct substitution in applications where the original specification is met or exceeded.

Littelfuse 37416300000 is a qualified alternative from a different manufacturer. This part meets all critical electrical parameters and maintains the same breaking capacity as the original part (50A). The height dimension is reduced by 0.5mm (8.00mm vs. 8.50mm), which may require mechanical clearance verification in space-constrained PCB layouts. Approval certifications (CSA, cULus) cover North American and UL standards. This part is suitable for substitution in applications where the minor height reduction does not conflict with mechanical constraints.

All three parts maintain active product status, ROHS3 compliance, and identical operating temperature ranges, ensuring long-term supply chain stability and regulatory consistency.

Frequently Asked Questions (FAQ)

Q: Can SCHURTER 0034.6983 be used as a direct replacement for SCHURTER 0034.7323?

A: Yes. The 0034.6983 is a parametric equivalent with identical current rating (6.3 A), voltage rating (250 V), response time (slow blow), mounting type (through hole), and package dimensions (8.50mm x 8.50mm). The enhanced breaking capacity (100A vs. 50A) and expanded certifications make it suitable for direct substitution.

Q: What is the significance of the breaking capacity difference between the SCHURTER 0034.7323 (50A) and SCHURTER 0034.6983 (100A)?

A: Breaking capacity defines the maximum fault current the fuse can safely interrupt without rupturing or creating a hazard. The 0034.6983 with 100A breaking capacity provides enhanced protection in circuits with higher available fault currents. Both parts are rated for the same 6.3 A nominal current and will operate identically under normal conditions.

Q: Can Littelfuse 37416300000 be used in place of SCHURTER 0034.7323?

A: Yes, with mechanical clearance verification. The Littelfuse part matches all critical electrical specifications and maintains the same 50A breaking capacity. The height dimension is 0.5mm shorter (8.00mm vs. 8.50mm). Confirm that the reduced height does not conflict with PCB layout, component spacing, or enclosure constraints before implementation.

Q: Are there differences in melting I²t values between these parts?

A: Yes. Melting I²t values differ: SCHURTER 0034.7323 (287), SCHURTER 0034.6983 (262), and Littelfuse 37416300000 (110). These values characterize the thermal energy required to melt the fuse element. All three parts are rated for identical 6.3 A nominal current and slow blow response, ensuring consistent circuit protection behavior under normal operating conditions.

Q: Which certifications apply to each part?

A: SCHURTER 0034.7323 carries cULus certification. SCHURTER 0034.6983 carries CQC, cURus, PSE/JET, and VDE certifications. Littelfuse 37416300000 carries CSA and cULus certifications. Select the part whose certifications align with your target market and regulatory requirements.

Q: Are all three parts ROHS3 compliant?

A: Yes. All three parts are ROHS3 compliant and suitable for applications requiring lead-free and restricted substance compliance.