D3924-42 Equivalent & Substitute Parts

Part Overview

The D3924-42 is a 24-position DIP socket manufactured by Harwin Inc., designed for IC and transistor applications with 0.3" (7.62mm) row spacing. This component features gold-plated beryllium copper mating contacts, tin-plated brass posts, and a closed-frame polycyclohexylenedimethylene terephthalate housing rated UL94 V-0. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing procurement and design requirements.

Substiute Parts

D3924-42

Harwin Inc.In Stock: 1148D3924-42 Datasheet

Current PartRFQ

D2924-42

Harwin Inc.In Stock: 2051D2924-42 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the D3924-42 is determined by the following critical parameters:

• Socket Configuration: 24-position DIP format with 0.3" (7.62mm) row spacing and 0.100" (2.54mm) pitch
• Electrical Characteristics: 1 A current rating and 10mOhm contact resistance
• Contact System: Gold-plated mating surface with beryllium copper contact material
• Mounting Interface: Through-hole solder termination with 0.126" (3.20mm) post length
• Environmental Rating: -55°C to 125°C operating temperature range and UL94 V-0 flammability classification

The D2924-42 qualifies as a substitute based on matching all critical electrical and mechanical parameters. Differences in frame design (closed versus open), housing material specification, and compliance status do not affect functional interchangeability in applications where the socket configuration and electrical performance are the primary selection criteria.

Parameter Comparison

Engineering Selection Recommendations

The D2924-42 is the designated substitute for the obsolete D3924-42. Both parts maintain identical electrical performance specifications, including current rating, contact resistance, and operating temperature range. The D2924-42 is currently in active production status with 2005 units available in inventory, ensuring supply continuity.

The D2924-42 carries RoHS non-compliant status, whereas the D3924-42 is ROHS3 compliant. Design teams requiring RoHS3 compliance must evaluate this distinction against application requirements. Both parts are REACH unaffected and classified under ECCN EAR99.

Mechanical differences between the parts—specifically the closed-frame design of the D3924-42 versus the open-frame design of the D2924-42—do not affect electrical interchangeability. Housing material differs (polycyclohexylenedimethylene terephthalate with glass filler versus plastic), but both materials meet the UL94 V-0 flammability requirement.

Frequently Asked Questions (FAQ)

Q: Can the D2924-42 directly replace the D3924-42 in existing designs?

A: Yes. Both parts share identical socket configuration (24-position DIP with 0.3" row spacing), electrical ratings (1 A current, 10mOhm contact resistance), contact materials (gold-plated beryllium copper), and operating temperature range (-55°C to 125°C). The parts are mechanically and electrically interchangeable.

Q: What is the difference between the closed-frame and open-frame designs?

A: The D3924-42 features a closed-frame housing, while the D2924-42 uses an open-frame design. This structural difference does not affect electrical performance or contact integrity. Frame design selection depends on mechanical assembly requirements and PCB layout constraints specific to the application.

Q: Does the housing material difference impact performance?

A: Both housing materials meet UL94 V-0 flammability requirements. The D3924-42 uses polycyclohexylenedimethylene terephthalate with glass filler, while the D2924-42 uses plastic. Material selection does not affect electrical characteristics or thermal performance within the specified operating range.

Q: What is the compliance difference between these parts?

A: The D3924-42 is ROHS3 compliant, while the D2924-42 is RoHS non-compliant. Both parts are REACH unaffected. Applications subject to RoHS3 regulatory requirements must account for this distinction during component selection.

Q: Are there packaging differences?

A: The D3924-42 packaging is not specified in available data. The D2924-42 is supplied in tube packaging. Confirm packaging requirements with your procurement team when transitioning between parts.