SCHURTER 0031.8308 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0031.8308 is a 125 mA, 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 is manufactured to meet cURus and VDE approval standards. Equivalent and substitute parts are identified when identical electrical ratings, mechanical dimensions, and approval certifications are maintained across the OGN-SMD series.

Substiute Parts

0031.8308

SCHURTER Inc.In Stock: 13480031.8308 Datasheet

Current PartRFQ

0031.8358

SCHURTER Inc.In Stock: 15480031.8358 Datasheet

Parametric EquivalentRFQ

0031.8504

SCHURTER Inc.In Stock: 11950031.8504 Datasheet

Parametric EquivalentRFQ

0031.8554

SCHURTER Inc.In Stock: 15440031.8554 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCHURTER 0031.8308 are qualified based on strict electrical and mechanical parameter matching within the OGN-SMD series. The following criteria determine substitution eligibility:

Critical Matching Parameters:

• Current Rating: 125 mA (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)
• Approval Agency: cURus, VDE (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

All three substitute parts (0031.8358, 0031.8504, 0031.8554) meet these criteria and are classified as parametric equivalents within the same product series.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (0031.8358, 0031.8504, 0031.8554) are qualified equivalents to the SCHURTER 0031.8308 based on matching electrical specifications, mechanical dimensions, and regulatory compliance. Each part maintains Active product status and carries identical cURus and VDE approvals, ensuring compliance with the same safety and performance standards.

The primary distinction among these parts is the Melting I²t value. Parts 0031.8308 and 0031.8358 share a Melting I²t of 0.064, while parts 0031.8504 and 0031.8554 have a Melting I²t of 0.259. This parameter affects the thermal energy dissipation characteristics of the fuse element but does not alter the fundamental electrical or mechanical compatibility for direct substitution within applications designed for the 125 mA, 250 V AC/DC rating.

All parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Frequently Asked Questions (FAQ)

Q: Can parts 0031.8504 and 0031.8554 be used interchangeably with 0031.8308?

A: Yes. All three parts meet identical electrical ratings (125 mA, 250 V AC/DC), mechanical dimensions (5mm x 20mm), and approval certifications (cURus, VDE). The difference in Melting I²t does not prevent direct substitution in applications designed for this fuse specification.

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

A: Melting I²t is a thermal energy parameter that characterizes the fuse element's response to overcurrent conditions. Parts 0031.8308 and 0031.8358 have a Melting I²t of 0.064, while parts 0031.8504 and 0031.8554 have a Melting I²t of 0.259. Both values are within the OGN-SMD series specification and do not affect compatibility for the stated 125 mA current rating and 250 V voltage rating.

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

A: Yes. All four parts (0031.8308, 0031.8358, 0031.8504, 0031.8554) 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, ensuring compliance with the same safety standards. All parts are ROHS3 compliant and REACH unaffected.

Q: What is the operating temperature range for these fuses?

A: All parts operate within the range of -40°C to 85°C, providing consistent thermal performance across the substitute group.

Q: Are there any differences in product status among these parts?

A: No. All four parts maintain Active product status, indicating current manufacturing and availability.