SCHURTER 0031.8472 Glass Fuse 4A 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The SCHURTER 0031.8472 is a 4A 250VAC glass cartridge fuse in 5mm x 20mm form factor, designed for surface mount applications requiring a holder. This fast-blow fuse is part of the OGN-SMD series and is currently active in production. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the product line, ensuring functional interchangeability in circuit protection applications.

Substiute Parts

0031.8472

SCHURTER Inc.In Stock: 12500031.8472 Datasheet

Current PartRFQ

0031.8373

SCHURTER Inc.In Stock: 15190031.8373 Datasheet

Parametric EquivalentRFQ

0031.8422

SCHURTER Inc.In Stock: 12450031.8422 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCHURTER 0031.8472 are identified based on strict equivalence of the following critical parameters:

• Current Rating: 4 A
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Glass
• Response Time: Fast Blow
• Package / Case: 5mm x 20mm w/Holder
• Mounting Type: Requires Holder, Surface Mount
• Breaking Capacity @ Rated Voltage: 40A
• Operating Temperature Range: -40°C ~ 85°C
• Approval Agencies: cURus, VDE
• RoHS Status: ROHS3 Compliant

All substitute parts listed maintain these core electrical and mechanical specifications, ensuring direct functional replacement in circuit protection applications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0031.8472, 0031.8373, and 0031.8422—are active production components from SCHURTER Inc. with identical electrical ratings, mechanical form factors, and regulatory certifications. Selection among these equivalents may be based on inventory availability and melting I²t characteristics. Parts 0031.8472 and 0031.8422 share identical melting I²t values (25.6), while 0031.8373 has a higher melting I²t value (68.3). All parts maintain cURus and VDE approval and ROHS3 compliance, confirming suitability for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can 0031.8373 be used as a direct replacement for 0031.8472?

A: Yes. Both parts maintain identical current rating (4A), voltage rating (250VAC), fuse type (cartridge glass), response time (fast blow), package dimensions (5mm x 20mm), and regulatory certifications. The difference in melting I²t (68.3 vs. 25.6) does not prevent substitution; it reflects a design variation within the same electrical class.

Q: What is the significance of the melting I²t parameter in fuse selection?

A: Melting I²t indicates the thermal energy required to melt the fuse element. While all three parts are rated for 4A at 250VAC, the melting I²t difference may affect response characteristics under specific fault conditions. Selection should align with circuit protection requirements.

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

A: Yes. All three parts are supplied in Tape & Reel (TR) packaging and require a surface mount holder for installation.

Q: Do all substitute parts carry the same regulatory approvals?

A: Yes. All parts are certified by cURus and VDE, and all are ROHS3 compliant, meeting the same regulatory requirements for circuit protection applications.