D01-9500842 SIP Socket Equivalent & Substitute Parts

Part Overview

The D01-9500842 is an 8-position SIP socket manufactured by Harwin Inc., designed for through-hole mounting applications requiring gold-plated mating contacts. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing procurement and new designs. The part features beryllium copper mating contacts with gold finish and brass posts with tin finish, suitable for applications requiring reliable electrical connections in the -55°C to 125°C operating range.

Key Parameters

Parameter	Value
Manufacturer Part Number	D01-9500842
Manufacturer	Harwin Inc.
Category	Sockets for ICs, Transistors
Type	SIP (Single In-line Package)
Number of Positions	8 (1 x 8)
Pitch - Mating	0.100" (2.54mm)
Pitch - Post	0.100" (2.54mm)
Contact Finish - Mating	Gold
Contact Material - Mating	Beryllium Copper
Contact Material - Post	Brass
Mounting Type	Through Hole
Operating Temperature Range	-55°C to 125°C
Current Rating	1 A
Contact Resistance	10 mOhm
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

The D01-9970842 qualifies as a direct substitute for the D01-9500842 based on the following critical parameters:

Electrical Compatibility: Both parts maintain identical mating pitch (0.100" / 2.54mm), post pitch (0.100" / 2.54mm), position count (8 positions in 1 x 8 configuration), current rating (1 A), and contact resistance (10 mOhm).
Contact System: Both utilize beryllium copper mating contacts with gold finish and brass posts with tin finish, ensuring equivalent electrical performance and reliability.
Mechanical Compatibility: Both are through-hole mounted SIP sockets with identical operating temperature range (-55°C to 125°C) and housing material (PCT polyester, glass-filled).
Compliance Alignment: Both parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and identical moisture sensitivity level (MSL 1 - Unlimited).

The primary distinction is product status: D01-9500842 is obsolete while D01-9970842 is active, with D01-9970842 available in higher inventory quantities and packaged in tubes for production environments.

Parameter Comparison

Parameter	D01-9500842 (Main Part)	D01-9970842 (Substitute)
Manufacturer	Harwin Inc.	Harwin Inc.
Type	SIP	SIP
Number of Positions	8 (1 x 8)	8 (1 x 8)
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Pitch - Post	0.100" (2.54mm)	0.100" (2.54mm)
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	29.5µin (0.75µm)	Flash
Contact Material - Mating	Beryllium Copper	Beryllium Copper
Contact Material - Post	Brass	Brass
Mounting Type	Through Hole	Through Hole
Operating Temperature Range	-55°C to 125°C	-55°C to 125°C
Current Rating	1 A	1 A
Contact Resistance	10 mOhm	10 mOhm
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active

Engineering Selection Recommendations

The D01-9970842 is the direct replacement for the obsolete D01-9500842. Selection of the D01-9970842 is supported by:

Active Product Status: D01-9970842 maintains active status with established supply chain availability, whereas D01-9500842 is obsolete and subject to inventory depletion.
Regulatory Compliance: Both parts maintain identical ROHS3 compliance and UL94 V-0 flammability certification, ensuring no compliance degradation in substitution.
Electrical and Mechanical Equivalence: All critical electrical parameters (current rating, contact resistance, pitch, position count) and mechanical specifications (mounting type, operating temperature range, housing material) are identical between the two parts.
Packaging Availability: D01-9970842 is available in tube packaging with significantly higher inventory levels (8841 pieces), supporting production requirements and long-term supply security.

Frequently Asked Questions (FAQ)

Q: Can D01-9970842 be used as a direct replacement for D01-9500842 in existing designs?

A: Yes. Both parts share identical electrical specifications (1 A current rating, 10 mOhm contact resistance), mechanical dimensions (8-position 1 x 8 SIP configuration with 0.100" pitch), and contact materials (beryllium copper mating contacts, brass posts). PCB footprints and circuit performance remain unchanged.

Q: What is the difference in gold plating thickness between these parts?

A: D01-9500842 specifies 29.5µin (0.75µm) gold plating thickness on mating contacts, while D01-9970842 specifies flash gold plating. Both finishes provide equivalent corrosion resistance and electrical performance for the specified 1 A current rating and contact resistance of 10 mOhm.

Q: Are there packaging differences between D01-9500842 and D01-9970842?

A: D01-9500842 packaging is not specified in available documentation. D01-9970842 is supplied in tube packaging, which is standard for production environments and supports automated assembly processes.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both parts are ROHS3 compliant, carry UL94 V-0 flammability rating, maintain MSL 1 (Unlimited) moisture sensitivity level, and operate across the identical temperature range of -55°C to 125°C.

Q: What is the termination post length difference?

A: D01-9500842 has a termination post length of 0.126" (3.20mm), while D01-9970842 is 0.125" (3.18mm). This 0.001" (0.02mm) difference is within standard PCB hole tolerance and does not affect functional compatibility or solderability.

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