SCHURTER 0031.8320 Glass Fuse 2A 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The SCHURTER 0031.8320 is a 2 A 250 V AC/DC fast-blow glass fuse cartridge in 5mm x 20mm form factor, designed for surface mount applications requiring a holder. This component is classified as Active product status and carries full regulatory compliance including cURus, VDE, ROHS3, and REACH certifications. Substitute parts are identified when equivalent electrical ratings and mechanical specifications align with the original design requirements.

Substiute Parts

0031.8320

SCHURTER Inc.In Stock: 12200031.8320 Datasheet

Current PartRFQ

0031.8370

SCHURTER Inc.In Stock: 11450031.8370 Datasheet

Parametric EquivalentRFQ

0031.8419

SCHURTER Inc.In Stock: 13750031.8419 Datasheet

Parametric EquivalentRFQ

0031.8469

SCHURTER Inc.In Stock: 14930031.8469 Datasheet

Parametric EquivalentRFQ

0031.8516

SCHURTER Inc.In Stock: 10890031.8516 Datasheet

Parametric EquivalentRFQ

0031.8566

SCHURTER Inc.In Stock: 16590031.8566 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCHURTER 0031.8320 are qualified based on strict electrical and mechanical parameter alignment:

Qualifying Criteria:

• Current Rating: 2 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 5mm x 20mm w/Holder (exact match required)
• Mounting Type: Requires Holder, Surface Mount (exact match required)
• Breaking Capacity @ Rated Voltage: 35 A (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Approval Agencies: cURus, VDE (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

All five substitute parts (0031.8370, 0031.8419, 0031.8469, 0031.8516, 0031.8566) meet these criteria. Variation exists only in the Melting I²t parameter, which reflects different thermal response characteristics within the fast-blow classification.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts carry identical Active product status and full regulatory compliance (cURus, VDE, ROHS3, REACH Unaffected). Selection between 0031.8320 and its substitutes is determined by Melting I²t requirements specific to the application circuit design:

• Melting I²t = 16: Parts 0031.8320 and 0031.8370 provide identical thermal response characteristics
• Melting I²t = 5.28: Parts 0031.8419 and 0031.8469 offer faster thermal response
• Melting I²t = 124: Parts 0031.8516 and 0031.8566 provide slower thermal response

All parts maintain the same 2 A current rating, 250 V voltage rating, 35 A breaking capacity, and -40°C to 85°C operating temperature range. Mechanical compatibility is assured across all substitutes due to identical 5mm x 20mm package specifications and surface mount holder requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute 0031.8320 with any of the listed parts? A: Yes, all listed parts are parametric equivalents meeting the same electrical and mechanical specifications. Selection depends on the Melting I²t requirement of your specific circuit design.

Q: What is the significance of different Melting I²t values? A: Melting I²t defines the thermal energy threshold at which the fuse element melts. Lower values (5.28) indicate faster response to overcurrent; higher values (124) indicate slower response. The original 0031.8320 has a Melting I²t of 16, placing it in the mid-range of the available options.

Q: Are all substitute parts surface mount compatible? A: Yes, all parts require a surface mount holder and are classified as Requires Holder, Surface Mount. Mechanical dimensions are identical at 5mm x 20mm.

Q: Do all parts carry the same regulatory certifications? A: Yes, all parts are cURus and VDE approved, ROHS3 compliant, and REACH unaffected.

Q: What is the operating temperature range for these fuses? A: All parts operate within -40°C to 85°C, ensuring consistent performance across standard industrial and commercial temperature ranges.

Q: Can I use these fuses in AC and DC applications? A: Yes, all parts are rated for 250 V AC/DC operation.