ICO-628-CGT 28-Position DIP Socket Equivalent & Substitute Parts

Part Overview

The ICO-628-CGT is a 28-position DIP socket manufactured by Samtec Inc., designed for through-hole mounting of dual inline package integrated circuits. This socket features gold-plated beryllium copper mating contacts with 0.100" (2.54mm) pitch and 0.6" (15.24mm) row spacing. The part is currently active in production with 771 units in stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when inventory constraints require alternative sourcing, or when design specifications allow for functionally compatible alternatives that meet the same electrical and mechanical requirements.

Substiute Parts

ICO-628-CGT

Samtec Inc.In Stock: 863ICO-628-CGT Datasheet

Current PartRFQ

115-43-628-41-003000

Mill-Max Manufacturing Corp.In Stock: 1161115-43-628-41-003000 Datasheet

SimilarRFQ

115-93-628-41-003000

Mill-Max Manufacturing Corp.In Stock: 1335115-93-628-41-003000 Datasheet

SimilarRFQ

28-650000-11-RC-P

Aries ElectronicsIn Stock: 88528-650000-11-RC-P Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ICO-628-CGT is determined by the following critical parameters:

• Position Count & Configuration: 28 positions in 2 x 14 arrangement
• Row Spacing: 0.6" (15.24mm) between rows
• Mating Pitch: 0.100" (2.54mm) center-to-center spacing
• Mating Contact Finish: Gold plating
• Mounting Method: Through-hole solder termination
• Operating Temperature: -55°C ~ 125°C range

Parts meeting these core specifications are functionally equivalent for standard DIP socket applications. Variations in post finish thickness, post material composition, and current rating do not affect basic socket functionality when the mating interface and mechanical envelope remain identical.

Parameter Comparison

Engineering Selection Recommendations

115-43-628-41-003000 (Mill-Max Manufacturing Corp.)

This part is a direct functional equivalent to the ICO-628-CGT. It maintains identical mating pitch, row spacing, position count, and gold contact finish. Both parts are ROHS3 compliant and actively produced. The higher current rating (3 A vs. 1 A) and increased post finish thickness provide additional margin for applications with higher current demands. This part is recommended as the primary substitute when ICO-628-CGT availability is constrained.

115-93-628-41-003000 (Mill-Max Manufacturing Corp.)

This part shares identical mechanical and electrical specifications with the ICO-628-CGT except for post finish composition (Tin-Lead vs. Tin) and RoHS compliance status. The part is not ROHS3 compliant, which restricts its use in applications subject to RoHS regulations. Selection of this part is appropriate only for non-RoHS applications where Tin-Lead termination is acceptable and cost considerations justify the substitution.

28-650000-11-RC-P (Aries Electronics)

This part is a SOIC-to-DIP adapter socket with a different mating pitch (0.050" vs. 0.100") and is designed for converting surface-mount SOIC packages to DIP form factor. It is not a direct socket replacement for standard DIP integrated circuits. This part is discontinued at DiGi Electronics and should not be selected for new designs requiring a standard 28-position DIP socket. It is applicable only in specialized adapter applications where SOIC-to-DIP conversion is the design requirement.

Frequently Asked Questions (FAQ)

Q: Can the Mill-Max 115-43-628-41-003000 be used as a direct replacement for the Samtec ICO-628-CGT?

A: Yes. Both parts have identical mating pitch (0.100"), row spacing (0.6"), position count (28), and gold contact finish. The mechanical envelope and electrical interface are compatible. Both are ROHS3 compliant and rated for -55°C to 125°C operation.

Q: What is the difference between the two Mill-Max substitutes (115-43 and 115-93)?

A: The primary difference is RoHS compliance status and post finish composition. The 115-43-628-41-003000 is ROHS3 compliant with Tin post finish. The 115-93-628-41-003000 is RoHS non-compliant with Tin-Lead post finish. Both have identical mating contact specifications and mechanical dimensions.

Q: Why is the Aries 28-650000-11-RC-P listed as a substitute if it has a different mating pitch?

A: The Aries part is listed because it appears in the original substitute reference data. However, the 0.050" (1.27mm) mating pitch makes it incompatible with standard 0.100" pitch DIP packages. This part is a specialized adapter for SOIC packages and is not a functional substitute for direct DIP socket applications.

Q: Does the higher current rating of the Mill-Max parts affect compatibility?

A: No. A higher current rating (3 A vs. 1 A) indicates greater current-carrying capacity and does not affect mechanical or electrical compatibility. The part can be used in applications requiring up to 3 A without derating.

Q: Are there any temperature or environmental differences between these parts?

A: The Samtec ICO-628-CGT and both active Mill-Max substitutes operate across the same temperature range (-55°C to 125°C). The discontinued Aries adapter does not specify an operating temperature range.

Q: What should be considered when selecting between available substitutes?

A: Selection should prioritize: (1) RoHS compliance requirements for the application, (2) current rating adequacy, (3) product status (active vs. discontinued), and (4) inventory availability. For new designs, the ROHS3-compliant Mill-Max 115-43-628-41-003000 is the recommended primary substitute.