ICO-624-LGT Equivalent & Substitute Parts

Part Overview

The ICO-624-LGT is a 24-position DIP socket manufactured by Samtec Inc., designed for through-hole mounting applications requiring gold-plated mating contacts and tin-plated brass posts. This component is classified as an active product with full inventory availability. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in circuit designs without functional compromise.

Substiute Parts

ICO-624-LGT

Samtec Inc.In Stock: 1247ICO-624-LGT Datasheet

Current PartRFQ

115-93-624-41-001000

Mill-Max Manufacturing Corp.In Stock: 1122115-93-624-41-001000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ICO-624-LGT is determined by strict alignment of the following critical parameters:

Position Count and Spacing: The substitute part must maintain 24 positions in a 2 x 12 configuration with 0.6" row spacing to ensure mechanical compatibility with PCB layouts and component packages.

Pitch Specifications: Both mating pitch (0.100") and post pitch (0.100") must match exactly to guarantee proper insertion and electrical connection.

Contact Finish - Mating Surface: Gold plating on mating contacts is required for corrosion resistance and reliable electrical contact in the specified operating environment.

Mounting and Termination: Through-hole mounting with solder termination is mandatory for PCB assembly compatibility.

Operating Temperature Range: The substitute must support the full -55°C to 125°C operating window.

The identified substitute part, 115-93-624-41-001000 from Mill-Max Manufacturing Corp., meets all critical substitution criteria across these parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - ICO-624-LGT (Samtec Inc.):

The ICO-624-LGT is the specified original component and remains the preferred selection for new designs. This part carries ROHS3 compliance certification, UL94 V-0 flammability rating, and is actively manufactured with confirmed inventory of 1163 units. The 1 A current rating aligns with typical DIP socket applications in standard logic and analog circuits.

Substitute Selection - 115-93-624-41-001000 (Mill-Max Manufacturing Corp.):

The 115-93-624-41-001000 qualifies as a functional substitute based on mechanical and primary electrical parameters. This part maintains identical position count, spacing, pitch, and mating contact specifications. However, the following differences require engineering evaluation:

RoHS Compliance Difference: The Mill-Max part is RoHS non-compliant, whereas the Samtec part is ROHS3 compliant. Applications subject to RoHS regulations must use the ICO-624-LGT.

Flammability Rating: The Mill-Max part does not specify a UL94 flammability rating. Applications requiring UL94 V-0 certification must use the ICO-624-LGT.

Current Rating: The Mill-Max part is rated for 3 A versus 1 A for the Samtec part. This higher rating does not create incompatibility but indicates different design margins.

Post Contact Finish: The Mill-Max part uses Tin-Lead finish with 200.0µin thickness versus Tin finish with 10.0µin thickness on the Samtec part. Both finishes are suitable for solder termination; the thicker Mill-Max finish provides additional corrosion protection.

Housing Material: The Mill-Max part uses PCT polyester versus glass-filled polyester in the Samtec part. Both materials support the -55°C to 125°C operating range.

Substitution is permissible only when RoHS compliance and UL94 V-0 certification are not design requirements.

Frequently Asked Questions (FAQ)

Q: Can the 115-93-624-41-001000 be used as a direct replacement for the ICO-624-LGT in all applications?

A: Direct replacement is possible only when the design does not require ROHS3 compliance or UL94 V-0 flammability certification. Both parts maintain identical mechanical footprints and mating contact specifications. Applications subject to regulatory compliance requirements must use the ICO-624-LGT.

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

A: Both finishes are compatible with solder termination processes. The Tin-Lead finish on the Mill-Max part (200.0µin thickness) provides thicker corrosion protection compared to the Tin finish on the Samtec part (10.0µin thickness). This difference does not affect electrical performance or mechanical compatibility.

Q: Does the higher current rating of the Mill-Max part (3 A versus 1 A) indicate superior performance?

A: The higher current rating reflects different design margins and manufacturing specifications. Both parts are suitable for standard DIP socket applications. The current rating difference does not indicate performance superiority but rather different design criteria. Selection should be based on actual circuit current requirements and regulatory compliance needs.

Q: Are the housing materials interchangeable?

A: Both housing materials (glass-filled polyester and PCT polyester) support the full -55°C to 125°C operating temperature range and are suitable for through-hole PCB mounting. The materials are functionally interchangeable for standard applications. Material selection may be relevant only for specific environmental or mechanical stress conditions not specified in this comparison.

Q: What packaging considerations apply to both parts?

A: Both the ICO-624-LGT and 115-93-624-41-001000 are supplied in tube packaging, ensuring compatibility with standard component handling and assembly processes. Tube packaging is suitable for both manual and automated PCB assembly workflows.

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

A: Selection should prioritize the ICO-624-LGT as the original specified component. Use the 115-93-624-41-001000 only when supply constraints exist and the design does not require ROHS3 compliance or UL94 V-0 certification. Verify that actual circuit current requirements do not exceed the specifications of either part.