ICO-640-AGT Equivalent & Substitute Parts

Part Overview

The ICO-640-AGT is a 40-position DIP socket manufactured by Samtec Inc., designed for through-hole mounting applications requiring gold-plated mating contacts. This component is classified as an IC socket with 0.6" row spacing and operates across the industrial temperature range of -55°C to 125°C. The part maintains Active product status with 662 units in current inventory.

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

Substiute Parts

ICO-640-AGT

Samtec Inc.In Stock: 735ICO-640-AGT Datasheet

Current PartRFQ

111-93-640-41-001000

Mill-Max Manufacturing Corp.In Stock: 1009111-93-640-41-001000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ICO-640-AGT is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 40 (2 x 20)
• 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 Variations:

• Contact Finish Thickness - Post: May vary within industry tolerance
• Contact Material - Post: Brass or Brass Alloy acceptable
• Housing Material: Polyester or equivalent thermoplastic polymers
• Current Rating: Equal to or greater than 1 A
• Contact Resistance: Equal to or lower than 10mOhm

The substitute part 111-93-640-41-001000 (Mill-Max Manufacturing Corp.) satisfies all mandatory matching parameters and operates within allowable variation ranges for post-side specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: ICO-640-AGT

The ICO-640-AGT maintains ROHS3 compliance, which is required for applications subject to European Union Restriction of Hazardous Substances regulations. This part is recommended for new designs and applications where RoHS compliance is mandatory.

Substitute Selection: 111-93-640-41-001000

The Mill-Max 111-93-640-41-001000 is electrically and mechanically compatible with the ICO-640-AGT across all critical mating parameters. The substitute provides higher current rating capacity (3 A versus 1 A) and thicker post-side plating (200.0µin versus 10.0µin), which may extend contact life in high-cycle insertion applications.

Compliance Consideration:

The substitute part is RoHS non-compliant. Selection of the 111-93-640-41-001000 is appropriate only for applications where RoHS compliance is not required or where legacy system maintenance permits non-compliant components.

Inventory Availability:

Mill-Max 111-93-640-41-001000 inventory (991 units) exceeds Samtec ICO-640-AGT inventory (662 units), providing supply chain flexibility for high-volume procurement.

Frequently Asked Questions (FAQ)

Q: Can the 111-93-640-41-001000 be used as a direct replacement for the ICO-640-AGT in new product designs?

A: The 111-93-640-41-001000 is mechanically and electrically compatible with the ICO-640-AGT. However, the substitute is RoHS non-compliant while the original is ROHS3 compliant. Use of the substitute in new designs is restricted to applications where RoHS compliance is not a design requirement.

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

A: Both finishes are acceptable for solder termination. The Tin-Lead finish on the substitute provides enhanced wetting characteristics during wave soldering. The Tin finish on the original part aligns with RoHS requirements that restrict lead content.

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

A: No. Higher current rating indicates the substitute can safely handle greater electrical loads. This represents a performance enhancement rather than a compatibility issue. The substitute remains suitable for applications designed for the 1 A rating of the original part.

Q: Are the housing materials functionally equivalent?

A: Yes. Both polyester glass-filled and polycyclohexylenedimethylene terephthalate (PCT) polyester materials provide equivalent mechanical and thermal properties for DIP socket applications within the specified operating temperature range of -55°C to 125°C.

Q: What does the difference in post-side plating thickness mean for long-term reliability?

A: The thicker plating on the substitute (200.0µin versus 10.0µin) provides greater corrosion resistance and may extend contact life in high-cycle insertion environments. Both thicknesses meet industry standards for solder-terminated through-hole connections.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes, provided the assembly does not require RoHS compliance documentation. The mechanical footprint, electrical performance, and thermal characteristics are equivalent between the two parts.