ICP-S1.0TN Equivalent & Substitute Parts

Part Overview

The ICP-S1.0TN is a 1 A, 50 V AC/DC board mount surface mount fuse manufactured by Rohm Semiconductor. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The part is housed in a 2-SMD, J-Lead package with fast-blow response characteristics and operates across a temperature range of -55°C to 125°C.

Substiute Parts

ICP-S1.0TN

Rohm SemiconductorIn Stock: 19443ICP-S1.0TN Datasheet

Current PartRFQ

3402.0009.24

SCHURTER Inc.In Stock: 15183402.0009.24 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICP-S1.0TN is determined by the following critical parameters:

• Current Rating: Must be 1 A
• Fuse Type: Board Mount (Cartridge Style Excluded)
• Mounting Type: Surface Mount
• Package / Case: 2-SMD, J-Lead
• Response Time: Fast Blow
• Operating Temperature Range: -55°C ~ 125°C minimum
• RoHS Compliance: ROHS3 Compliant

The substitute part 3402.0009.24 (SCHURTER Inc.) meets these core requirements. While the voltage rating is elevated to 63 V AC/DC compared to the original 50 V specification, this represents an uprated alternative suitable for applications where the circuit voltage does not exceed the substitute's rating. The package geometry, mounting method, and electrical response characteristics remain compatible with the original design footprint and functional requirements.

Parameter Comparison

Engineering Selection Recommendations

The 3402.0009.24 substitute part is suitable for applications currently using the ICP-S1.0TN where circuit voltage does not exceed 63 V AC/DC. The substitute maintains active product status with cURus approval certification, ensuring continued availability and regulatory compliance. Both parts are ROHS3 compliant and operate within the same temperature range, supporting direct functional replacement in surface mount applications requiring 1 A fast-blow fuse protection.

The elevated voltage rating of the substitute part does not compromise circuit protection in applications designed for 50 V operation, as the fuse will respond identically to overcurrent conditions at the specified 1 A threshold.

Frequently Asked Questions (FAQ)

Q: Can the 3402.0009.24 be used as a direct replacement for the ICP-S1.0TN?

A: Yes, provided the circuit voltage does not exceed 63 V AC/DC. The current rating, package type, mounting method, and response characteristics are identical. PCB footprint compatibility should be verified, as the substitute part dimensions differ slightly (7.40mm x 3.10mm x 2.60mm versus 3.00mm x 2.50mm x 2.00mm).

Q: What is the primary difference between these two fuse parts?

A: The primary difference is the voltage rating. The ICP-S1.0TN is rated for 50 V AC/DC, while the 3402.0009.24 is rated for 63 V AC/DC. Both maintain identical current ratings and response characteristics.

Q: Are there any compliance or certification differences?

A: The substitute part carries cURus approval certification, whereas the original part does not specify an approval agency. Both parts are ROHS3 compliant and REACH unaffected.

Q: Will the substitute part fit the existing PCB footprint?

A: Physical dimensions differ between the two parts. The ICP-S1.0TN measures 3.00mm x 2.50mm x 2.00mm, while the 3402.0009.24 measures 7.40mm x 3.10mm x 2.60mm. PCB layout verification is required before implementation.

Q: What is the breaking capacity of the substitute part?

A: The 3402.0009.24 has a breaking capacity of 50 A at rated voltage, with a melting I²t value of 0.078.