ICO-203-S8A-T Equivalent & Substitute Parts

Part Overview

The ICO-203-S8A-T is a 20-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 functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

ICO-203-S8A-T

3MIn Stock: 918ICO-203-S8A-T Datasheet

Current PartRFQ

4820-3004-CP

3MIn Stock: 77174820-3004-CP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 4820-3004-CP qualifies as a direct substitute for the ICO-203-S8A-T based on the following critical parameters:

• Position Count & Spacing: Both parts feature 20 positions in a 2 x 10 configuration with identical 0.3" (7.62mm) row spacing
• Pitch Specifications: Mating and post pitch both match at 0.100" (2.54mm)
• Contact System: Both utilize tin-plated phosphor bronze contacts for mating and post connections
• Mounting & Termination: Through-hole solder termination is identical
• Housing Material: Polyester glass-filled construction matches
• Current Rating: Both rated for 1 A
• Flammability: Both meet UL94 V-0 standard

The 4820-3004-CP is manufactured by 3M and maintains active product status, providing a viable replacement path for the obsolete ICO-203-S8A-T.

Parameter Comparison

Engineering Selection Recommendations

The 4820-3004-CP is the direct functional equivalent for the obsolete ICO-203-S8A-T. All critical electrical and mechanical parameters align precisely, ensuring pin-for-pin compatibility and identical performance characteristics in DIP socket applications.

The 4820-3004-CP offers the additional advantage of active product status, ensuring continued availability and supply chain stability. The part is ROHS3 compliant, meeting current environmental and regulatory requirements, whereas the original ICO-203-S8A-T is RoHS non-compliant.

Operating temperature ranges differ between the parts: the ICO-203-S8A-T operates from -65°C to 105°C, while the 4820-3004-CP operates from -25°C to 85°C. Component selection should account for specific application temperature requirements.

Frequently Asked Questions (FAQ)

Q: Can the 4820-3004-CP be used as a direct replacement for the ICO-203-S8A-T?

A: Yes. Both parts share identical pin counts (20 positions), row spacing (0.3"), contact pitch (0.100"), contact materials (tin-plated phosphor bronze), and current ratings (1 A). They are mechanically and electrically interchangeable for DIP socket applications.

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

A: The ICO-203-S8A-T is obsolete, while the 4820-3004-CP maintains active product status. Additionally, the 4820-3004-CP is ROHS3 compliant, whereas the original part is RoHS non-compliant. Operating temperature ranges also differ.

Q: Are there packaging differences between these parts?

A: The ICO-203-S8A-T packaging is not specified in available data. The 4820-3004-CP is supplied in tube packaging.

Q: Do both parts meet the same flammability standards?

A: Yes. Both the ICO-203-S8A-T and 4820-3004-CP meet UL94 V-0 material flammability requirements.

Q: What are the operating temperature considerations for substitution?

A: The ICO-203-S8A-T operates across -65°C to 105°C, while the 4820-3004-CP operates across -25°C to 85°C. Applications requiring operation below -25°C or above 85°C should evaluate temperature compatibility before substitution.