M20-9722346 Equivalent & Substitute Parts

Part Overview

The M20-9722346 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole mounting with 46 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This vertical header connector features male pins with solder termination and push-pull fastening, suitable 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 new designs or production continuity.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	46
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Material	Brass
Insulation Material	Polyamide (PA6T), Nylon 6T
Operating Temperature	-40°C ~ 105°C
Current Rating	3A per Contact
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the M20-9722346 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Compatibility Criteria:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 46
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Material Flammability Rating: UL94 V-0
Current Rating: 3A per Contact
Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed maintain these core electrical and mechanical parameters. Variations in contact length, contact finish, insulation material, and operating temperature range are secondary parameters that do not prevent substitution when the primary criteria are met. Parts are grouped by manufacturer and series, with active product status preferred for new designs.

Parameter Comparison

Parameter	M20-9722346 (Harwin)	0901310783 (Molex)	2346-6221-TG (3M)	68491-446HLF (Amphenol ICC)	77313-122-46LF (Amphenol ICC)	77313-124-46LF (Amphenol ICC)	77313-127-46LF (Amphenol ICC)	77313-422-46LF (Amphenol ICC)	77313-424-46LF (Amphenol ICC)	77313-427-46LF (Amphenol ICC)	77313-822-46LF (Amphenol ICC)
Manufacturer	Harwin Inc.	Molex	3M	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Connector Type	Header, Cuttable	Header, Breakaway	Header	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	46	46	46	46	46	46	46	46	46	46	46
Number of Rows	2	2	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)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	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	Push-Pull	Push-Pull
Contact Length - Mating	0.276" (7.00mm)	0.266" (6.75mm)	0.318" (8.08mm)	0.255" (6.48mm)	0.305" (7.75mm)	0.266" (6.75mm)	0.260" (6.60mm)	0.305" (7.75mm)	0.266" (6.75mm)	0.260" (6.60mm)	0.305" (7.75mm)
Contact Length - Post	0.122" (3.10mm)	0.114" (2.90mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.114" (2.90mm)	0.105" (2.67mm)	0.120" (3.05mm)	0.114" (2.90mm)	0.105" (2.67mm)	0.120" (3.05mm)
Overall Contact Length	0.496" (12.60mm)	0.478" (12.15mm)	0.538" (13.67mm)	0.475" (12.07mm)	0.526" (13.35mm)	0.480" (12.19mm)	0.465" (11.81mm)	0.526" (13.35mm)	0.480" (12.19mm)	0.465" (11.81mm)	0.526" (13.35mm)
Insulation Height	0.100" (2.54mm)	0.098" (2.50mm)	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)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Tin	Gold	Gold	Tin	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold or Gold, GXT™	Tin	Tin	Tin	Gold or Gold, GXT™
Contact Material	Brass	Brass	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Operating Temperature	-40°C ~ 105°C	Not specified	-55°C ~ 105°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C
Current Rating	3A per Contact	Not specified	3A	3A	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact
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	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For RoHS3 Compliant Applications: The following active substitutes maintain ROHS3 compliance equivalent to the M20-9722346: 0901310783 (Molex C-Grid III 90131), 68491-446HLF (Amphenol ICC BERGSTIK® II), 77313-122-46LF, 77313-124-46LF, 77313-127-46LF, 77313-422-46LF, 77313-424-46LF, 77313-427-46LF, and 77313-822-46LF (Amphenol ICC BERGSTIK® series). The 3M 2346-6221-TG is RoHS non-compliant and is not suitable for applications requiring RoHS compliance.

For REACH Unaffected Status: Parts with REACH Unaffected status include 0901310783 (Molex), 68491-446HLF (Amphenol ICC), and 77313-427-46LF (Amphenol ICC). Parts with REACH Affected status are 2346-6221-TG (3M), 77313-124-46LF, 77313-127-46LF, 77313-422-46LF, 77313-424-46LF, and 77313-822-46LF (Amphenol ICC).

For Extended Operating Temperature Range: All Amphenol ICC BERGSTIK® and BERGSTIK® II parts operate from -65°C to 130°C, exceeding the original M20-9722346 range of -40°C to 105°C. The Molex 0901310783 does not specify an operating temperature range. The 3M 2346-6221-TG operates from -55°C to 105°C.

For Active Product Status: All listed substitutes except the M20-9722346 are active products. For new designs and production continuity, active substitutes are preferred.

Frequently Asked Questions (FAQ)

Q: Can I substitute the M20-9722346 with any of the listed parts? A: Yes, all listed parts are electrically and mechanically compatible based on core parameters: 46 positions, 2 rows, 0.100" (2.54mm) pitch, male pins, through-hole solder termination, push-pull fastening, and 3A per contact current rating. Variations in contact length, contact finish, and operating temperature do not prevent substitution.

Q: What is the difference between the Amphenol ICC BERGSTIK® and BERGSTIK® II series? A: The BERGSTIK® II (68491-446HLF) is a distinct series with different contact materials (Phosphor Bronze vs. Brass in the original) and operating temperature range (-65°C to 130°C). The BERGSTIK® series (77313-xxx-46LF variants) offers multiple contact finish and length options within the same series platform.

Q: Why do some parts have different contact lengths? A: Contact length variations (ranging from 0.255" to 0.318" mating length) accommodate different PCB thicknesses and application requirements. All variants maintain the same pitch and position count, ensuring mechanical compatibility with standard 0.100" (2.54mm) spacing.

Q: What is the significance of contact finish (Tin vs. Gold)? A: Contact finish affects corrosion resistance and mating force characteristics. Tin-finished contacts (M20-9722346, 68491-446HLF, 77313-422-46LF, 77313-424-46LF, 77313-427-46LF) provide standard performance. Gold-finished contacts (0901310783, 2346-6221-TG, 77313-122-46LF, 77313-124-46LF, 77313-127-46LF, 77313-822-46LF) offer enhanced corrosion resistance and lower contact resistance.

Q: Are there packaging differences among the substitutes? A: Yes. Packaging options include Tray (0901310783), Bulk (2346-6221-TG, 77313-124-46LF, 77313-127-46LF), and Bag (68491-446HLF, 77313-122-46LF, 77313-422-46LF, 77313-424-46LF, 77313-427-46LF, 77313-822-46LF). Packaging does not affect electrical or mechanical performance but may influence procurement and handling procedures.

Q: Which substitute is recommended for new designs? A: For new designs requiring RoHS3 compliance and active product status, the Amphenol ICC BERGSTIK® series (77313-xxx-46LF variants) or Molex C-Grid III 90131 (0901310783) are recommended. The Amphenol ICC BERGSTIK® II (68491-446HLF) is also suitable and offers extended operating temperature range.

Q: What is the inventory status of these substitutes? A: All listed substitutes have new original stock available, ranging from 621 to 1082 pieces depending on the specific part number.

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