SCHURTER 0034.3105 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0034.3105 is a 63 mA, 250 V AC/DC slow-blow glass cartridge fuse in 5mm x 20mm form factor. This fuse is designed for circuit protection in applications requiring slow-blow response characteristics and operates across a temperature range of -55°C to 125°C. The part is active in production status and holds multiple international certifications including CCC, cURus, and VDE approval. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

0034.3105

SCHURTER Inc.In Stock: 9570034.3105 Datasheet

Current PartRFQ

0218.063HXP

Littelfuse Inc.In Stock: 10580218.063HXP Datasheet

DirectRFQ

0218.063MXP

Littelfuse Inc.In Stock: 19930218.063MXP Datasheet

DirectRFQ

5ST 63-R

Bel Fuse Inc.In Stock: 566535ST 63-R Datasheet

DirectRFQ

BK/S506-63-R

Eaton - Electronics DivisionIn Stock: 839BK/S506-63-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 0034.3105 is determined by strict alignment of the following parameters:

• Current Rating: 63 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Slow Blow (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Breaking Capacity @ Rated Voltage: 35 A (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)
• RoHS Status: ROHS3 Compliant (exact match required)

All substitute parts listed below meet these criteria and are manufactured by recognized component suppliers: Littelfuse Inc., Bel Fuse Inc., and Eaton - Electronics Division.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active production status and comply with ROHS3 requirements. Selection among equivalent parts should be based on:

1. Certification alignment with application requirements. The Littelfuse 0218.063HXP and 0218.063MXP offer the broadest certification coverage including UL and K-MARK. The Bel Fuse 5ST 63-R includes cURus certification matching the original SCHURTER part. The Eaton BK/S506-63-R provides BSI and UR certifications.

2. Inventory availability. Bel Fuse 5ST 63-R maintains the highest stock level at 56,609 pieces. Littelfuse 0218.063MXP provides 1,899 pieces, Littelfuse 0218.063HXP provides 1,045 pieces, and Eaton BK/S506-63-R provides 775 pieces.

3. Physical dimensions. The Bel Fuse 5ST 63-R has a slightly reduced diameter of 5.10mm compared to 5.20mm for other parts. This minor variation remains within mechanical compatibility for standard 5mm x 20mm fuse holders.

4. Electrical characteristics. Melting I²t values and DC cold resistance vary among substitutes. These variations reflect different internal fuse element designs while maintaining identical rated performance at 63 mA, 250 V AC/DC.

Frequently Asked Questions (FAQ)

Q: Can I substitute the SCHURTER 0034.3105 with any of the listed parts?

A: Yes. All listed parts meet the mandatory substitution criteria: 63 mA current rating, 250 V AC voltage rating, slow-blow response, 5mm x 20mm package, 35 A breaking capacity, and ROHS3 compliance. Physical and electrical compatibility is confirmed.

Q: Does the slight diameter difference in the Bel Fuse 5ST 63-R affect compatibility?

A: The Bel Fuse 5ST 63-R has a diameter of 5.10mm compared to 5.20mm for other parts. This 0.10mm difference remains within standard mechanical tolerances for 5mm x 20mm fuse holders and does not affect functional compatibility.

Q: What is the significance of different Melting I²t values?

A: Melting I²t values reflect the internal fuse element design and thermal characteristics. All parts maintain identical rated performance at 63 mA, 250 V AC/DC. Variations in I²t do not affect substitution eligibility when all other electrical parameters match.

Q: Which substitute part has the best certification coverage?

A: The Littelfuse 0218.063HXP and 0218.063MXP both carry the broadest certification set including CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE. The Bel Fuse 5ST 63-R includes cURus certification, matching the original SCHURTER part's certification profile.

Q: Are all substitute parts currently in production?

A: Yes. All substitute parts maintain active production status. Inventory levels vary by manufacturer and distributor.