SCHURTER 3404.2468.22 Equivalent & Substitute Parts

Part Overview

The SCHURTER 3404.2468.22 is a surface mount board-mounted fuse rated at 1.6 A, 250 V AC / 125 V DC with fast-blow response characteristics. This component belongs to the UMK 250 series and is designed for circuit protection in compact electronic assemblies requiring SMD integration. The part maintains active product status with cURus and VDE approvals, ensuring compliance with international safety standards. Substitute parts are identified to provide alternatives when the primary part is unavailable or when application requirements permit operation at higher voltage ratings while maintaining identical current ratings and form factors.

Substiute Parts

3404.2468.22

SCHURTER Inc.In Stock: 10473404.2468.22 Datasheet

Current PartRFQ

TR-1245UMFF1-6-R

Eaton - Electronics DivisionIn Stock: 3897TR-1245UMFF1-6-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 3404.2468.22 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 1.6 A (exact match required)
• Mounting Type: Surface Mount
• Fuse Type: Board Mount (Cartridge Style Excluded)
• Package / Case: 2-SMD configuration
• Response Time: Fast Blow

Allowable Variation Parameters:

• Voltage Rating - AC: May exceed 250 V (higher ratings provide backward compatibility)
• Voltage Rating - DC: May exceed 125 V (higher ratings provide backward compatibility)
• Operating Temperature Range: May exceed -40°C ~ 85°C
• Approval Agency: Alternative certifications acceptable if meeting equivalent safety standards
• Physical Dimensions: Minor variations acceptable within SMD assembly constraints

The Eaton TR-1245UMFF1-6-R qualifies as a substitute because it maintains identical current rating (1.6 A), mounting type (Surface Mount), fuse type (Board Mount), package configuration (2-SMD), and response time (Fast Blow), while offering enhanced voltage ratings (350 V AC / 250 V DC) and extended operating temperature range (-40°C ~ 125°C).

Parameter Comparison

Engineering Selection Recommendations

The Eaton TR-1245UMFF1-6-R serves as a direct functional substitute for the SCHURTER 3404.2468.22 in applications where the following conditions are met:

• Circuit design operates at or below 350 V AC and 250 V DC
• PCB assembly accommodates the slightly larger physical dimensions (12.00mm x 4.50mm x 4.50mm versus 11.30mm x 4.20mm x 4.00mm)
• System operating environment does not exceed 125°C
• UL certification satisfies regulatory requirements in place of cURus/VDE certification

The substitute part provides enhanced voltage margin and extended temperature operating range, making it suitable for applications requiring greater environmental tolerance. Both parts maintain identical current ratings and fast-blow response characteristics, ensuring equivalent circuit protection performance at the specified 1.6 A threshold.

Frequently Asked Questions (FAQ)

Q: Can the Eaton TR-1245UMFF1-6-R be used in place of the SCHURTER 3404.2468.22?

A: Yes, provided the application circuit operates within 350 V AC / 250 V DC limits and the PCB layout accommodates the substitute part's slightly larger dimensions (12.00mm x 4.50mm x 4.50mm). Both parts share identical current ratings (1.6 A) and fast-blow response characteristics.

Q: What is the primary difference between these two fuses?

A: The Eaton substitute offers higher voltage ratings (350 V AC / 250 V DC versus 250 V AC / 125 V DC) and extended operating temperature range (-40°C ~ 125°C versus -40°C ~ 85°C). Physical dimensions are slightly larger, and certification is UL-based rather than cURus/VDE.

Q: Are there dimensional compatibility concerns?

A: The Eaton part is approximately 0.5mm larger in length and width, and 0.2mm larger in height. PCB footprint and component placement must be verified to ensure assembly compatibility.

Q: Do both parts have identical breaking capacity?

A: The SCHURTER part specifies 200A AC / 100A DC breaking capacity. The Eaton part specifies 100A breaking capacity. Verify that the application's fault current requirements do not exceed the substitute part's rating.

Q: What certifications apply to each part?

A: The SCHURTER 3404.2468.22 carries cURus and VDE approvals. The Eaton TR-1245UMFF1-6-R carries UL certification. Regulatory requirements for the target application determine certification acceptability.