ICO-632-SST Equivalent & Substitute Parts

Part Overview

The ICO-632-SST is a 32-position DIP socket manufactured by Samtec Inc., designed for through-hole mounting applications requiring gold-plated mating contacts. This socket accommodates dual inline package (DIP) integrated circuits with 0.6" row spacing and 0.100" pitch. The part is currently in active production status with 955 units available in inventory.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in circuit board designs without functional degradation.

Substiute Parts

ICO-632-SST

Samtec Inc.In Stock: 1026ICO-632-SST Datasheet

Current PartRFQ

110-91-632-41-001000

Mill-Max Manufacturing Corp.In Stock: 1018110-91-632-41-001000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ICO-632-SST is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 32 (2 x 16)
• Row Spacing: 0.6" (15.24mm)
• Pitch - Mating: 0.100" (2.54mm)
• Contact Finish - Mating: Gold
• Mounting Type: Through Hole
• Operating Temperature Range: -55°C to 125°C minimum
• Termination: Solder

Allowable Variation Parameters:

• Contact Material - Post: Brass or Brass Alloy
• Contact Finish - Post: Tin or Tin-Lead
• Housing Material: Polyester variants or equivalent polymers
• Current Rating: Equal to or greater than 1 A

The substitute part 110-91-632-41-001000 (Mill-Max Manufacturing Corp.) satisfies all mandatory matching parameters and falls within allowable variation ranges for post-side specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: ICO-632-SST (Samtec Inc.)

The ICO-632-SST is the specified original part and remains the preferred selection when:

• RoHS3 compliance is a design requirement
• Contact resistance specification of 10mOhm is critical to circuit performance
• Original equipment manufacturer (OEM) specifications mandate Samtec components

Substitute Selection: 110-91-632-41-001000 (Mill-Max Manufacturing Corp.)

The 110-91-632-41-001000 is functionally equivalent for applications where:

• All 32 positions, 0.6" row spacing, and 0.100" pitch requirements are met
• Gold-plated mating contacts with beryllium copper springs are required
• Operating temperature range of -55°C to 125°C is maintained
• Through-hole solder termination is the assembly method

Compliance Consideration:

The substitute part (110-91-632-41-001000) is RoHS non-compliant, while the original part (ICO-632-SST) is ROHS3 compliant. Design teams must verify whether RoHS compliance is mandated by end-use application, regional regulations, or customer specifications before selecting the substitute.

Current Rating Difference:

The substitute part carries a 3 A current rating compared to the original 1 A rating. This represents a performance enhancement and does not restrict substitution for applications designed around the original 1 A specification.

Frequently Asked Questions (FAQ)

Q: Can the 110-91-632-41-001000 be used as a direct replacement for the ICO-632-SST on existing PCBs?

A: Yes, from a physical and electrical standpoint. Both parts share identical pin counts (32), row spacing (0.6"), pitch (0.100"), mating contact finish (gold), and operating temperature range (-55°C to 125°C). PCB footprints designed for the ICO-632-SST will accommodate the 110-91-632-41-001000 without modification. However, RoHS compliance status differs between the two parts and must be evaluated against project requirements.

Q: What is the significance of the different post-side contact finishes (Tin vs. Tin-Lead)?

A: Both finishes are solder-compatible and suitable for wave soldering and reflow assembly processes. Tin-Lead finish (110-91-632-41-001000) provides enhanced wetting characteristics and is widely used in industrial applications. Tin finish (ICO-632-SST) aligns with RoHS3 compliance requirements. Selection depends on assembly process specifications and regulatory compliance mandates.

Q: Why does the substitute part have a higher current rating (3 A vs. 1 A)?

A: The 3 A rating of the 110-91-632-41-001000 reflects the contact and spring design capabilities of the Mill-Max part. This higher rating does not affect substitution suitability for circuits designed around the original 1 A specification. The substitute part will perform safely in all applications where the original part was specified.

Q: Are there any differences in housing material that affect performance?

A: The ICO-632-SST uses polyester with glass filler, while the 110-91-632-41-001000 uses polycyclohexylenedimethylene terephthalate (PCT) polyester. Both materials provide equivalent mechanical strength, thermal stability, and electrical insulation properties within the specified operating temperature range. Material selection does not impact functional compatibility.

Q: What is the inventory status for both parts?

A: The ICO-632-SST has 955 units in stock, and the 110-91-632-41-001000 has 948 units in stock. Both parts are classified as active products with current manufacturing support.

Q: How do I determine which part to specify for a new design?

A: Evaluate your design requirements against these criteria: (1) RoHS compliance mandate—select ICO-632-SST if ROHS3 compliance is required; (2) Contact resistance specification—select ICO-632-SST if 10mOhm contact resistance is a design parameter; (3) Assembly process—both parts are compatible with standard through-hole solder assembly; (4) Cost and availability—consult current pricing and lead time data from authorized distributors.