ICO-628-STT Equivalent & Substitute Parts

Part Overview

The ICO-628-STT is a 28-position DIP socket manufactured by Samtec Inc., designed for through-hole mounting applications requiring low-profile screw machine construction. This socket accommodates dual inline package (DIP) integrated circuits with 0.6" row spacing and 0.100" pitch contacts. The part is currently active in production with 916 units in stock. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when specific application requirements necessitate alternative contact finishes, temperature ratings, or current handling capabilities.

Substiute Parts

ICO-628-STT

Samtec Inc.In Stock: 934ICO-628-STT Datasheet

Current PartRFQ

110-99-628-41-001000

Mill-Max Manufacturing Corp.In Stock: 1353110-99-628-41-001000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ICO-628-STT is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Type: DIP with 0.6" (15.24mm) row spacing
• Number of Positions: 28 (2 x 14)
• Pitch - Mating: 0.100" (2.54mm)
• Pitch - Post: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Contact Material - Mating: Beryllium Copper
• Contact Material - Post: Brass or Brass Alloy
• Termination: Solder
• Features: Open Frame

Allowable Variations:

• Contact Finish - Mating: Tin or Tin-Lead
• Operating Temperature Range: Equal to or exceeding -55°C ~ 105°C
• Current Rating: Equal to or exceeding 1 A
• Housing Material: Polyester variants (Glass Filled or PCT)
• RoHS Compliance Status: May differ based on application requirements

The substitute part 110-99-628-41-001000 (Mill-Max Manufacturing Corp.) meets all mandatory matching parameters and is therefore classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (ICO-628-STT): The ICO-628-STT is the preferred choice for applications requiring ROHS3 compliance. This part is actively produced and maintains adequate inventory levels. The tin contact finish and specified 10mOhm contact resistance provide defined electrical performance characteristics.

Substitute Selection (110-99-628-41-001000): The Mill-Max 110-99-628-41-001000 serves as a functional equivalent for applications where RoHS compliance is not mandated. This substitute offers enhanced current handling capacity (3 A versus 1 A) and an extended operating temperature range (-55°C ~ 125°C versus -55°C ~ 105°C). The tin-lead contact finish differs from the primary part. Higher inventory availability (1304 units) may support expedited procurement requirements.

Compliance Considerations: Selection between these parts must account for regulatory requirements. The ICO-628-STT meets ROHS3 standards; the 110-99-628-41-001000 does not. Applications subject to RoHS directives must use the ICO-628-STT or equivalent RoHS-compliant alternatives.

Frequently Asked Questions (FAQ)

Q: Can the 110-99-628-41-001000 be used as a direct replacement for the ICO-628-STT in all applications?

A: The 110-99-628-41-001000 is mechanically and electrically compatible for socket functionality. However, RoHS compliance status differs. Applications requiring ROHS3 certification must use the ICO-628-STT. Applications without RoHS requirements may use the substitute.

Q: What is the significance of the contact finish difference (Tin versus Tin-Lead)?

A: Both tin and tin-lead finishes provide adequate contact performance for DIP socket applications. The tin finish on the ICO-628-STT supports RoHS3 compliance. The tin-lead finish on the 110-99-628-41-001000 is a legacy finish. Selection depends on application compliance requirements and soldering process compatibility.

Q: Does the higher current rating of the substitute part (3 A versus 1 A) affect compatibility?

A: The higher current rating of the 110-99-628-41-001000 indicates enhanced current-carrying capability. This does not create incompatibility; it represents an improved specification. Applications requiring currents up to 1 A function identically with either part.

Q: Are the housing materials interchangeable?

A: Both housing materials (Polyester Glass Filled and PCT Polyester) are suitable for DIP socket applications. Material selection does not affect electrical or mechanical compatibility for standard through-hole mounting.

Q: What is the impact of the extended temperature range on the substitute part?

A: The 110-99-628-41-001000 operates to 125°C versus 105°C for the ICO-628-STT. This extended range does not create incompatibility for applications operating within the lower temperature limit. Selection should be based on actual application temperature requirements.

Q: How do I verify physical compatibility before substitution?

A: Both parts share identical pitch specifications (0.100" mating and post), identical position count (28), and identical row spacing (0.6"). Physical compatibility is confirmed by these matching parameters. Verify PCB footprint design accommodates 0.100" pitch DIP socket mounting.