ICA-422-STT Equivalent & Substitute Parts

Part Overview

The ICA-422-STT is a 22-position DIP socket manufactured by Samtec Inc., designed for through-hole mounting applications requiring 0.4" row spacing and 0.100" pitch contact spacing. This socket accommodates standard dual-in-line integrated circuits and transistor packages with tin-plated beryllium copper mating contacts and brass post contacts. The product is currently active in production with 765 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required for component procurement, inventory management, or design flexibility across manufacturing sources.

Substiute Parts

ICA-422-STT

Samtec Inc.In Stock: 869ICA-422-STT Datasheet

Current PartRFQ

110-99-422-41-001000

Mill-Max Manufacturing Corp.In Stock: 1023110-99-422-41-001000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ICA-422-STT is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 22 (2 x 11)
• Row Spacing: 0.4" (10.16mm)
• Pitch - Mating: 0.100" (2.54mm)
• Pitch - Post: 0.100" (2.54mm)
• Mounting Type: Through Hole
• Contact Material - Mating: Beryllium Copper
• Termination: Solder
• Features: Open Frame

Allowable Variations:

• Contact Finish - Mating: Tin or Tin-Lead
• Contact Material - Post: Brass or Brass Alloy
• Housing Material: Polyester variants (Polyester Glass Filled or Polycyclohexylenedimethylene Terephthalate)
• Operating Temperature Range: Equal or extended upper limit
• Current Rating: Equal or higher
• Contact Resistance: Equal or lower

The substitute part 110-99-422-41-001000 from Mill-Max Manufacturing Corp. meets all mandatory matching parameters and falls within allowable variations for contact finish and housing material composition.

Parameter Comparison

Engineering Selection Recommendations

ICA-422-STT Selection Criteria:

• Primary choice when RoHS3 compliance is required for end applications
• Specified when tin-only contact finish is mandated by design or procurement standards
• Preferred for applications operating within -55°C to 105°C temperature envelope
• Suitable for circuits with 1 A maximum current requirements per contact

110-99-422-41-001000 Selection Criteria:

• Acceptable substitute when RoHS compliance is not a project requirement
• Applicable for designs tolerating tin-lead contact finish
• Specified for applications requiring extended operating temperature range up to 125°C
• Suitable for circuits with current requirements up to 3 A per contact
• Moisture Sensitivity Level 1 (Unlimited) provides flexibility in storage and handling

Both parts share identical mechanical footprint, pin count, pitch specifications, and mounting configuration, ensuring direct interchangeability at the PCB assembly level. Selection between these parts depends on compliance requirements, temperature operating range, and current capacity specifications of the target application.

Frequently Asked Questions (FAQ)

Q: Can the 110-99-422-41-001000 be used as a direct replacement for the ICA-422-STT on existing PCB designs?

A: Yes. Both parts have identical row spacing (0.4"), pitch specifications (0.100"), position count (22), and through-hole mounting configuration. PCB footprints are mechanically interchangeable.

Q: What is the significance of the tin-lead contact finish on the Mill-Max part versus tin-only on the Samtec part?

A: Contact finish affects solderability and environmental resistance. Tin-lead provides different wetting characteristics during solder reflow. Tin-only finish is preferred in RoHS3-compliant applications. Selection depends on soldering process parameters and compliance requirements.

Q: Why does the Mill-Max part have a higher current rating (3 A versus 1 A)?

A: Current rating reflects the maximum continuous current the contact can safely carry without exceeding temperature rise limits. The Mill-Max part is rated for higher current capacity. Applications requiring only 1 A can use either part; applications exceeding 1 A require the Mill-Max substitute.

Q: Is the extended temperature range of the Mill-Max part (-55°C to 125°C versus -55°C to 105°C) a significant advantage?

A: The extended upper temperature limit provides margin for applications operating at elevated ambient temperatures or with high-power dissipation. For applications within -55°C to 105°C, both parts perform equivalently.

Q: What does RoHS3 compliance mean for the Samtec part?

A: RoHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. This is required for many consumer and industrial applications sold in regulated markets.

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

A: Both use polyester-based housing materials. The Samtec part specifies glass-filled polyester; the Mill-Max part specifies polycyclohexylenedimethylene terephthalate (PCT) polyester. Both materials provide equivalent mechanical and thermal performance for DIP socket applications.

Q: Can I mix these two part numbers on the same PCB?

A: Yes. Both parts have identical mechanical and electrical interfaces. Mixed usage is permissible if design and procurement specifications allow component substitution.

Q: What is the Moisture Sensitivity Level (MSL) significance for the Mill-Max part?

A: MSL 1 (Unlimited) indicates the component has no moisture sensitivity restrictions. It can be stored and handled without special humidity controls, simplifying logistics and inventory management compared to parts with higher MSL ratings.