SCHURTER 0034.6070 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.6070 is a 400 mA, 250 V AC/DC board mount fuse with fast blow response time, designed for through-hole radial mounting in vertical orientation. This component is part of the MSF 250 series and maintains active product status with full RoHS3 compliance. Equivalent and substitute parts are identified when identical electrical ratings and mechanical compatibility are maintained across the specified parameter set.

Substiute Parts

0034.6070

SCHURTER Inc.In Stock: 14460034.6070 Datasheet

Current PartRFQ

SR-5-5A-BK

Eaton - Electronics DivisionIn Stock: 1282SR-5-5A-BK Datasheet

DirectRFQ

37004000000

Littelfuse Inc.In Stock: 102237004000000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCHURTER 0034.6070 are classified based on electrical and mechanical compatibility within the following criteria:

Direct Equivalent (Identical Current Rating): Part 37004000000 (Littelfuse TR5® 370) maintains the same 400 mA current rating, 250 V AC voltage rating, fast blow response, and through-hole radial mounting configuration. Physical dimensions remain within acceptable tolerance (8.50mm diameter, height variance of 0.50mm maximum). This part is suitable for direct replacement in applications requiring identical electrical performance.

Functional Substitute (Different Current Rating): Part SR-5-5A-BK (Eaton Electronics Division) operates at 5 A current rating with slow blow response time. This part shares the same 250 V AC voltage rating, through-hole radial mounting type, and operating temperature range. Selection of this substitute requires circuit-level verification that the higher current rating and slow blow characteristic are compatible with the application's protection requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The Littelfuse 37004000000 is the primary equivalent substitute. It maintains identical current rating (400 mA), voltage rating (250 V AC), response time (fast blow), and mounting configuration. All three parts carry active product status and ROHS3 compliance. The Littelfuse part includes higher breaking capacity (50 A vs. 35 A), which provides additional safety margin. Approval agencies include CCC, cURus, SEMKO, and VDE, matching the regulatory requirements of the original SCHURTER component.

For Functional Substitution: The Eaton SR-5-5A-BK may be considered only when circuit design permits a higher current rating (5 A vs. 400 mA) and slow blow response characteristic. This part is not interchangeable for applications requiring fast blow protection at 400 mA. The Eaton part carries broader regulatory approval (CCC, cULus, KC-MARK, PSE, SEMKO, VDE) and higher breaking capacity (50 A).

Frequently Asked Questions (FAQ)

Q: Can the Littelfuse 37004000000 be used as a direct replacement for the SCHURTER 0034.6070?

A: Yes. Both parts share identical current rating (400 mA), voltage rating (250 V AC), response time (fast blow), and through-hole radial mounting configuration. Physical dimensions are compatible within standard PCB layout tolerances. All regulatory certifications are maintained.

Q: What is the key difference between the SCHURTER 0034.6070 and the Eaton SR-5-5A-BK?

A: The primary difference is current rating: SCHURTER operates at 400 mA with fast blow response, while Eaton operates at 5 A with slow blow response. These are not interchangeable without circuit-level verification. The Eaton part is suitable only for applications designed to accept higher current protection and slower response characteristics.

Q: Are all three parts available in the same packaging format?

A: No. SCHURTER 0034.6070 is supplied in Cut Tape (CT) packaging. Littelfuse 37004000000 is supplied in Tape & Box (TB) packaging. Eaton SR-5-5A-BK is supplied in Bulk packaging. Packaging selection depends on procurement and assembly requirements.

Q: Do all substitute parts meet the same regulatory standards?

A: All three parts are ROHS3 compliant and carry CCC and VDE certifications. Littelfuse adds SEMKO certification. Eaton includes additional certifications (cULus, KC-MARK, PSE, SEMKO). The core regulatory requirements are met by all parts.

Q: What is the melting I²t specification, and why does it differ between parts?

A: Melting I²t indicates the thermal energy required to melt the fuse element. SCHURTER 0034.6070 specifies 0.044, Littelfuse 37004000000 specifies 0.025, and Eaton SR-5-5A-BK specifies 95.4. These values reflect different fuse element designs and response characteristics. For direct replacement, the Littelfuse value (0.025) indicates faster thermal response, which is acceptable for fast blow applications.