D01-9500542 Equivalent & Substitute Parts

Part Overview

The D01-9500542 is a 5-position SIP (Single In-line Package) socket manufactured by Harwin Inc., designed for through-hole mounting applications. This component features gold-plated mating contacts and tin-plated brass posts, suitable for IC and transistor socket applications with a 0.100" (2.54mm) pitch. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure ongoing component availability for production and repair applications.

Substiute Parts

D01-9500542

Harwin Inc.In Stock: 748D01-9500542 Datasheet

Current PartRFQ

D01-9970542

Harwin Inc.In Stock: 2839D01-9970542 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The D01-9500542 has been superseded by the D01-9970542, which maintains functional equivalence through identical electrical and mechanical specifications. Substitution is valid based on the following critical parameters:

• Position Count & Pitch: Both parts feature 5 positions in a 1 x 5 configuration with 0.100" (2.54mm) mating and post pitch
• Contact System: Identical beryllium copper mating contacts with gold finish and brass posts with tin finish
• Electrical Performance: Matching 1 A current rating and 10mOhm contact resistance
• Mounting & Termination: Both use through-hole solder termination
• Environmental Compliance: Identical operating temperature range (-55°C ~ 125°C), UL94 V-0 flammability rating, and ROHS3 compliance
• Series Transition: D01-950 series (obsolete) to D01-997 series (active)

The D01-9970542 is the manufacturer-recommended replacement, currently in active production with significantly higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The D01-9970542 is the direct equivalent replacement for the obsolete D01-9500542. Both components meet identical electrical and mechanical specifications, with the substitute part offering the advantage of active production status and improved component availability. The D01-9970542 maintains full compliance with ROHS3 and REACH requirements, matching the environmental and regulatory standards of the original part. The minor variation in mating contact finish thickness (flash vs. 29.5µin) and post finish thickness (196.9µin vs. unspecified) does not affect functional equivalence, as both configurations deliver the specified 10mOhm contact resistance and 1 A current rating. The negligible difference in termination post length (0.125" vs. 0.126") is within standard manufacturing tolerances and does not impact PCB compatibility. Selection of the D01-9970542 is appropriate for new designs, production continuity, and repair applications requiring the D01-9500542 specification.

Frequently Asked Questions (FAQ)

Q: Can the D01-9970542 be used as a direct replacement for the D01-9500542 in existing designs?

A: Yes. Both parts share identical electrical ratings (1 A current, 10mOhm contact resistance), mechanical configuration (5-position SIP, 0.100" pitch), contact materials (beryllium copper mating, brass posts), and environmental specifications (-55°C ~ 125°C operating range, UL94 V-0 flammability). The termination post length difference (0.125" vs. 0.126") is within standard manufacturing tolerance and does not affect PCB hole compatibility.

Q: What is the difference in contact finish between these parts?

A: The D01-9500542 specifies 29.5µin (0.75µm) gold plating on mating contacts, while the D01-9970542 uses flash gold plating. Both finishes provide equivalent contact resistance (10mOhm) and corrosion protection. Flash plating is a standard industry practice for SIP sockets and does not compromise electrical performance or reliability.

Q: Are there packaging differences between these parts?

A: The D01-9500542 packaging is not specified in available documentation. The D01-9970542 is supplied in tube packaging, which is standard for SIP socket distribution. This difference does not affect component functionality or PCB mounting.

Q: Why is the D01-9500542 classified as obsolete?

A: The D01-9500542 belongs to the D01-950 series, which has been superseded by the D01-997 series. The D01-9970542 represents the active production equivalent within the current product line. Harwin Inc. recommends the D01-9970542 for all new applications and ongoing production requirements.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the D01-9500542 and D01-9970542 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: What is the inventory status for these parts?

A: The D01-9500542 has 697 pieces available as new original stock. The D01-9970542 has significantly higher availability with 2,769 pieces in stock, reflecting its active production status and suitability for ongoing procurement.