Equivalent & Substitute Parts for M20-8763642

Part Overview

The Harwin M20-8763642 is a surface mount rectangular connector header with 72 positions at 0.100" (2.54mm) pitch, configured as a 2-row board-to-board or cable connector. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

The M20-8763642 features male pins with gold-plated mating contacts, tin-plated posts, and brass contact material. It operates across -40°C to 105°C and carries 3A per contact at 250V. The connector is UL94 V-0 rated, ROHS3 compliant, and has unlimited moisture sensitivity (MSL 1).

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Number of Positions	72
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Contact Type	Male Pin
Mounting Type	Surface Mount
Termination	Solder
Current Rating	3A per Contact
Voltage Rating	250V
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the M20-8763642 is determined by the following critical parameters:

Position Count: 72 positions (exact match required)
Pitch: 0.100" (2.54mm) mating pitch and row spacing
Contact Type: Male pin configuration
Mounting: Surface mount technology
Electrical Performance: 3A per contact minimum, 250V minimum voltage rating
Temperature Range: Operating range of -40°C to 105°C or broader
Compliance: UL94 V-0 flammability rating, RoHS compliance

The substitute parts listed are functionally equivalent when these parameters align. The M20-8762042 is a reduced-position variant (40 positions) and serves as a design alternative when fewer positions are acceptable. The Amphenol ICC BERGSTIK® series parts (95278 base number) provide direct 72-position equivalents with identical pitch, contact configuration, and electrical ratings, though with different contact materials and finish specifications.

Parameter Comparison

Parameter	M20-8763642	M20-8762042	95278-101-72LF	95278-101B72LF	95278-401-72LF	95278-801-72LF	95278-801B72LF
Manufacturer	Harwin Inc.	Harwin Inc.	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Number of Positions	72	40	72	72	72	72	72
Number of Rows	2	2	2	2	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Connector Type	Header, Cuttable	Header, Cuttable	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (Amps)	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Material	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Gold	Gold	Gold, GXT™	Gold, GXT™	Tin	Gold, GXT™	Gold, GXT™
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
Packaging	-	Bulk	Bag	Tube	Bag	Bag	Tube

Engineering Selection Recommendations

For direct replacement of the M20-8763642 in active designs, the Amphenol ICC BERGSTIK® 72-position series (95278-101-72LF, 95278-101B72LF, 95278-801-72LF, 95278-801B72LF) provides full electrical and mechanical compatibility. All substitute parts maintain the required 3A per contact rating, UL94 V-0 flammability compliance, and RoHS certification. The extended operating temperature range (-65°C to 125°C) of the BERGSTIK® series exceeds the original specification, providing additional thermal margin.

Contact finish selection between the BERGSTIK® variants depends on application requirements. The gold-plated options (95278-101-72LF, 95278-101B72LF, 95278-801-72LF, 95278-801B72LF) provide enhanced corrosion resistance. The tin-plated variant (95278-401-72LF) is suitable for applications where cost optimization is prioritized and corrosion resistance requirements are less stringent.

Packaging format selection (Bag or Tube) and Pick and Place feature availability (95278-101B72LF, 95278-801B72LF) should align with manufacturing process requirements.

The M20-8762042 is a design alternative when circuit requirements permit reduction to 40 positions, offering the same pitch and electrical performance with reduced footprint.

Frequently Asked Questions (FAQ)

Q: Can the M20-8762042 (40-position) be used as a direct replacement for the M20-8763642 (72-position)?

A: No. The M20-8762042 has 40 positions versus 72 positions in the original part. It is a design alternative only when the application can accommodate fewer connection points. All other electrical and mechanical parameters are compatible.

Q: What is the difference between the BERGSTIK® variants (95278-101-72LF, 95278-801-72LF, 95278-401-72LF)?

A: The primary differences are contact finish specifications and gold plating thickness. The 95278-101-72LF and 95278-801-72LF feature gold-plated mating contacts with GXT™ finish at different thicknesses (30.0µin and 15.0µin respectively). The 95278-401-72LF uses tin plating on mating contacts. All three maintain identical pitch, position count, and electrical ratings.

Q: Are the Amphenol ICC BERGSTIK® parts fully compatible with the Harwin M20-8763642 footprint?

A: Yes. Both the original and substitute parts share identical pitch (0.100" / 2.54mm), row spacing (0.100" / 2.54mm), position count (72), and surface mount termination. PCB footprints are compatible.

Q: What is the difference between Bag and Tube packaging for the BERGSTIK® series?

A: Packaging format does not affect electrical or mechanical performance. Bag packaging (95278-101-72LF, 95278-401-72LF, 95278-801-72LF) is standard. Tube packaging (95278-101B72LF, 95278-801B72LF) includes Pick and Place features for automated assembly processes.

Q: Does the extended operating temperature range of the BERGSTIK® series (-65°C to 125°C) affect compatibility?

A: No. The extended range is a performance enhancement. Applications designed for the original -40°C to 105°C range operate within the BERGSTIK® specification and benefit from additional thermal margin.

Q: Are all substitute parts RoHS compliant?

A: Yes. The M20-8762042 is ROHS3 compliant. The Amphenol ICC BERGSTIK® series parts are RoHS compliant. All parts meet regulatory requirements for lead-free construction.

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