M20-9700945 Equivalent & Substitute Parts

Part Overview

The Harwin M20-9700945 is a rectangular connector header, right-angle configuration, with 18 positions at 2.54mm pitch. This through-hole component features male pins, solder termination, and unshrouded design for board-to-board or cable applications. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and field replacement requirements.

Key Parameters

Parameter	M20-9700945
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	18
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Shrouding	Unshrouded
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Current Rating	3A per Contact
Operating Temperature	-40°C ~ 105°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following critical parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 18
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole, Right Angle
Contact Type: Male Pin
Termination: Solder
Fastening Type: Push-Pull
Shrouding: Unshrouded
Material Flammability Rating: UL94 V-0
Insulation Color: Black

All identified substitute parts meet these core electrical and mechanical parameters. Variations in contact length, contact finish, contact material, insulation material, and operating temperature ranges are secondary considerations that do not preclude functional substitution within the specified mating interface.

Parameter Comparison

Parameter	M20-9700945 (Harwin)	0717640118 (Molex)	0717640218 (Molex)	68695-418HLF (Amphenol ICC)	77317-112-18LF (Amphenol ICC)	77317-412-18LF (Amphenol ICC)	77317-812-18LF (Amphenol ICC)	961218-5804-AR (3M)	A1-18PA-2.54DS(71) (Hirose)
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)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	18	18	18	18	18	18	18	18	18
Number of Rows	2	2	2	2	2	2	2	2	2
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)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black	Black
Contact Length - Mating	0.276" (7.00mm)	0.240" (6.10mm)	0.240" (6.10mm)	0.230" (5.84mm)	0.268" (6.80mm)	0.268" (6.80mm)	0.268" (6.80mm)	0.272" (6.90mm)	0.236" (6.00mm)
Contact Length - Post	0.118" (3.00mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.090" (2.29mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.130" (3.30mm)	0.118" (3.00mm)
Insulation Height	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.197" (5.00mm)	0.236" (6.00mm)
Contact Finish - Mating	Gold	Gold	Gold	Tin	Gold, GXT™	Tin	Gold, GXT™	Gold	Gold
Contact Material	Brass	Copper Alloy	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Brass
Operating Temperature	-40°C ~ 105°C	Not specified	Not specified	Not specified	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-25°C ~ 105°C	-55°C ~ 85°C
Current Rating	3A per Contact	Not specified	Not specified	5A	3A per Contact	3A per Contact	3A per Contact	2A	3A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed maintain active product status with current manufacturer support, ensuring long-term availability and supply chain continuity. Selection among equivalents should prioritize parts with ROHS3 compliance where applicable, as the original M20-9700945 specifies ROHS3 Compliant status.

The Molex C-Grid 71764 series (0717640118, 0717640218) and Amphenol ICC BERGSTIK® series (77317-112-18LF, 77317-412-18LF, 77317-812-18LF) represent the most direct functional equivalents, with all critical mating parameters aligned to the original specification. The Amphenol ICC BERGSTIK® II series (68695-418HLF) and 3M 961 series (961218-5804-AR) provide alternative solutions with verified UL94 V-0 compliance and active product status.

For applications requiring extended operating temperature range, the Amphenol ICC BERGSTIK® series offers -65°C to 130°C capability, exceeding the original -40°C to 105°C specification. The Hirose A1 series (A1-18PA-2.54DS(71)) provides an alternative with brass contact material matching the original design.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the M20-9700945?

A: All listed substitute parts share the critical mating parameters: 0.100" (2.54mm) pitch, 18 positions, 2 rows, through-hole right-angle mounting, male pins, solder termination, and push-pull fastening. Physical board layout compatibility depends on contact length and post length variations. Verify mechanical fit within your specific PCB design before production implementation.

Q: What is the difference between the Molex 0717640118 and 0717640218?

A: Both parts are Molex C-Grid 71764 series headers with identical mating parameters. The primary difference is contact finish thickness on the mating surface: 0717640118 specifies 15.0µin (0.38µm) gold finish, while 0717640218 specifies 30.0µin (0.76µm) gold finish. Both meet ROHS3 compliance and UL94 V-0 flammability requirements.

Q: How do the Amphenol ICC BERGSTIK® variants differ?

A: The three BERGSTIK® variants (77317-112-18LF, 77317-412-18LF, 77317-812-18LF) differ in contact finish specifications. The 77317-112-18LF and 77317-812-18LF feature gold finish (GXT™) with 30.0µin and 15.0µin thickness respectively. The 77317-412-18LF features tin finish with 78.7µin thickness. All three share identical mating pitch, position count, row spacing, and operating temperature range (-65°C ~ 130°C).

Q: Does operating temperature range affect substitution eligibility?

A: Operating temperature range is a secondary parameter. The original M20-9700945 specifies -40°C to 105°C. Substitute parts with extended ranges (such as Amphenol ICC BERGSTIK® at -65°C to 130°C) are compatible for applications within the original temperature specification. Parts with narrower ranges (such as 3M 961 at -25°C to 105°C) are suitable only if your application does not require operation below -25°C.

Q: What packaging options are available?

A: Substitute parts are supplied in multiple packaging formats: Tube (Molex 0717640118, 0717640218), Bag (Amphenol ICC 68695-418HLF, 77317-412-18LF), Bulk (Amphenol ICC 77317-112-18LF, 77317-812-18LF), and Tray (Hirose A1-18PA-2.54DS(71)). Packaging selection should align with your procurement and assembly process requirements.

Q: Are all substitute parts RoHS compliant?

A: All substitute parts listed are RoHS compliant. The original M20-9700945 specifies ROHS3 compliance. Molex parts (0717640118, 0717640218) maintain ROHS3 status. Amphenol ICC and 3M parts specify RoHS compliance. Hirose A1-18PA-2.54DS(71) is RoHS compliant. Verify specific RoHS revision requirements for your application and regulatory jurisdiction.

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