ICO-183-S8A-T Equivalent & Substitute Parts

Part Overview

The ICO-183-S8A-T is an 18-position DIP socket manufactured by 3M, designed for through-hole mounting of integrated circuits and transistors. This component features a 0.3" (7.62mm) row spacing with tin-plated phosphor bronze contacts and polyester glass-filled housing. The part is currently classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

ICO-183-S8A-T

3MIn Stock: 776ICO-183-S8A-T Datasheet

Current PartRFQ

4818-3004-CP

3MIn Stock: 72824818-3004-CP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ICO-183-S8A-T is determined by the following critical parameters that must remain constant:

• Number of Positions: 18 (2 x 9) configuration
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing: 0.3" (7.62mm)
• Contact Finish - Mating: Tin
• Contact Material - Mating: Phosphor Bronze
• Mounting Type: Through Hole
• Termination: Solder
• Housing Material: Polyester, Glass Filled
• Material Flammability Rating: UL94 V-0
• Current Rating: 1 A

The substitute part 4818-3004-CP meets all these critical parameters. Variations in operating temperature range, product status, and RoHS compliance do not affect mechanical or electrical interchangeability for socket applications.

Parameter Comparison

Engineering Selection Recommendations

The 4818-3004-CP serves as the direct substitute for the obsolete ICO-183-S8A-T. Both components are manufactured by 3M and share identical mechanical and electrical specifications for socket functionality. The substitute part is currently in active production status with full inventory availability.

For applications requiring RoHS3 compliance, the 4818-3004-CP is the appropriate selection. The operating temperature range of the substitute (-25°C ~ 85°C) is narrower than the original part (-65°C ~ 105°C); applications operating outside this range require evaluation against specific system requirements.

Frequently Asked Questions (FAQ)

Q: Are ICO-183-S8A-T and 4818-3004-CP mechanically interchangeable?

A: Yes. Both components feature identical 18-position DIP configuration, 0.100" (2.54mm) mating pitch, 0.3" (7.62mm) row spacing, and through-hole solder termination. Direct substitution is supported for PCB mounting.

Q: What is the difference in operating temperature range?

A: The ICO-183-S8A-T operates from -65°C to 105°C, while the 4818-3004-CP operates from -25°C to 85°C. Applications requiring operation below -25°C or above 85°C must confirm compatibility with the substitute part's thermal specifications.

Q: Does the RoHS compliance difference affect substitution?

A: RoHS compliance status does not affect electrical or mechanical interchangeability. Selection between RoHS-compliant and non-compliant parts depends on regulatory requirements for the end application.

Q: Are the contact materials identical?

A: Yes. Both parts use tin-plated phosphor bronze contacts for both mating and post surfaces, ensuring equivalent electrical performance and contact resistance characteristics.

Q: What packaging is available for the substitute part?

A: The 4818-3004-CP is supplied in tube packaging, whereas the original ICO-183-S8A-T packaging specification was not provided.