SCHURTER 0034.6821 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.6821 is a 4 A 250 V AC / 125 V DC board mount fuse with slow blow response time, designed for through-hole radial mounting in a vertical can configuration. This component is classified as Active product status with full RoHS3 compliance and international regulatory approvals including CCC, cURus, KC, PSE/JET, and VDE. Substitute parts are identified when equivalent electrical ratings, mechanical compatibility, and regulatory certifications align with the original specification.

Substiute Parts

0034.6821

SCHURTER Inc.In Stock: 14860034.6821 Datasheet

Current PartRFQ

7100.1019.13

SCHURTER Inc.In Stock: 13047100.1019.13 Datasheet

DirectRFQ

37214000001

Littelfuse Inc.In Stock: 546337214000001 Datasheet

DirectRFQ

MRT 4-AMMO

Bel Fuse Inc.In Stock: 9883MRT 4-AMMO Datasheet

DirectRFQ

SR-5-4A-AP

Eaton - Electronics DivisionIn Stock: 5414SR-5-4A-AP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 0034.6821 is determined by the following critical parameters:

• Current Rating: 4 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)
• Fuse Type: Board Mount (Cartridge Style Excluded)

Parts meeting all these criteria are classified as direct electrical and mechanical equivalents. The substitute parts listed below satisfy these core requirements and maintain compatibility with the original design specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance. Selection among equivalent parts should be based on the following factors:

Littelfuse 37214000001: Matches core electrical specifications with 40 A breaking capacity. Regulatory approvals include CCC, cURus, PSE, SEMKO, and VDE. Operating temperature range is -40°C ~ 85°C, which is narrower than the original specification.

Bel Fuse MRT 4-AMMO: Provides 50 A breaking capacity and maintains the full operating temperature range of -55°C ~ 125°C, matching the original part's thermal envelope. Regulatory approvals include AEC-Q200, CCC, CE, CSA, cURus, PSE, SEMKO, and VDE, offering the broadest certification coverage.

Eaton SR-5-4A-AP: Matches 40 A breaking capacity with regulatory approvals including CCC, cULus, KC-MARK, PSE, SEMKO, and VDE. Operating temperature range is -40°C ~ 85°C.

Physical dimensions vary slightly across all parts. Verification of PCB footprint compatibility is necessary prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can SCHURTER 0034.6821 be replaced with SCHURTER 7100.1019.13?

A: No. The 7100.1019.13 has a current rating of 2.5 A, which does not meet the 4 A requirement of the original specification. Current rating is a critical parameter that must match exactly for substitution.

Q: What is the primary difference between the substitute parts?

A: All substitute parts share the same 4 A current rating, 250 V AC voltage rating, slow blow response time, and through-hole radial mounting configuration. Differences exist in breaking capacity, melting I²t values, operating temperature ranges, and physical dimensions. The Bel Fuse MRT 4-AMMO maintains the widest operating temperature range (-55°C ~ 125°C) matching the original part.

Q: Are all substitute parts physically interchangeable?

A: Physical dimensions vary between manufacturers. While all parts use radial, can, vertical packaging, specific diameter and height measurements differ. PCB footprint compatibility must be verified before implementation.

Q: Which substitute part has the highest regulatory approval coverage?

A: The Bel Fuse MRT 4-AMMO includes AEC-Q200 certification in addition to CCC, CE, CSA, cURus, PSE, SEMKO, and VDE approvals, providing the most comprehensive regulatory coverage.

Q: Can operating temperature range differences affect substitution decisions?

A: Yes. The original SCHURTER 0034.6821 operates from -55°C ~ 125°C. Littelfuse 37214000001 and Eaton SR-5-4A-AP are limited to -40°C ~ 85°C. Applications requiring the full temperature envelope must use either the original part or the Bel Fuse MRT 4-AMMO.