M20-8761942P Equivalent & Substitute Parts

Part Overview

The M20-8761942P is a rectangular connector header manufactured by Harwin Inc., designed for surface mount applications with 38 positions at 2.54mm pitch. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The connector features a cuttable header design with male pins, suitable for board-to-board or cable applications with a current rating of 3A per contact and 250V voltage rating.

Key Parameters

Parameter	Value
Manufacturer Part Number	M20-8761942P
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Connector Type	Header, Cuttable
Contact Type	Male Pin
Number of Positions	38
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Surface Mount
Termination	Solder
Contact Length - Mating	0.228" (5.80mm)
Insulation Height	0.100" (2.54mm)
Contact Shape	Square
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Contact Material	Brass
Insulation Material	Polyamide (PA6T), Nylon 6T
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
Current Rating	3A per Contact
Voltage Rating	250V
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the M20-8761942P is determined by the following critical parameters that must remain consistent:

Primary Matching Criteria:

Number of Positions: 38
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header, Cuttable
Contact Type: Male Pin
Mounting Type: Surface Mount
Termination: Solder
Fastening Type: Push-Pull
Insulation Height: 0.100" (2.54mm)
Contact Shape: Square
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Secondary Considerations:

Contact Length - Mating (may vary within mechanical compatibility)
Contact Finish specifications (mating and post finishes)
Contact Material composition
Insulation Material type
Operating Temperature range
Packaging format

The M20-8762042 from Harwin Inc. serves as the primary direct substitute with 40 positions, representing a position count increase. Samtec Inc. TSM series connectors (TSM-119-02-F-DV, TSM-119-02-F-DV-A, TSM-119-02-FM-DV, TSM-119-02-G-DV, TSM-119-02-G-DV-A, TSM-119-02-H-DV, TSM-119-02-LM-DV, TSM-119-02-S-DV-A-P-TR, and TSM-119-02-S-DV-LC) provide equivalent 38-position configurations with variations in contact finish specifications and packaging options.

Parameter Comparison

Parameter	M20-8761942P (Main)	M20-8762042	TSM-119-02-F-DV	TSM-119-02-G-DV	TSM-119-02-H-DV	TSM-119-02-S-DV-A-P-TR
Manufacturer	Harwin Inc.	Harwin Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Number of Positions	38	40	38	38	38	38
Number of Rows	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)
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)
Connector Type	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable	Header, Cuttable
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.228" (5.80mm)	0.228" (5.80mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)	0.320" (8.13mm)
Insulation Height	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
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin	Tin	Tin	Gold	Gold	Tin
Contact Material	Brass	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active	Active	Active	Active	Active

Engineering Selection Recommendations

M20-8762042 (Harwin Inc.): This part maintains manufacturer continuity with the original M20-8761942P while offering active product status. The 40-position configuration provides additional contact capacity. Both parts share identical electrical and thermal specifications, with the same insulation material (Polyamide PA6T/Nylon 6T) and operating temperature range (-40°C to 105°C). Selection of this part is appropriate when design flexibility allows for the increased position count and when maintaining the Harwin product line is preferred.

TSM-119 Series (Samtec Inc.): The Samtec TSM-119-02 variants provide equivalent 38-position configurations with extended operating temperature range (-55°C to 125°C) and improved contact material composition (Phosphor Bronze vs. Brass). These parts are suitable for applications requiring higher temperature performance or when Samtec supply chain integration is advantageous. The TSM series offers multiple contact finish options to accommodate specific application requirements:

TSM-119-02-F-DV and TSM-119-02-F-DV-A: Standard gold mating finish with tin post finish
TSM-119-02-G-DV and TSM-119-02-G-DV-A: Enhanced gold finishes on both mating and post surfaces
TSM-119-02-H-DV: Premium gold finish thickness (30.0µin) on mating surface with gold post finish
TSM-119-02-LM-DV: Gold mating finish with tin post finish
TSM-119-02-S-DV-A-P-TR: Tape & Reel packaging with board guide and pick-and-place features
TSM-119-02-S-DV-LC: Board lock feature variant

All substitute parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity level, ensuring regulatory and environmental compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can M20-8762042 be used as a direct replacement for M20-8761942P?

A: M20-8762042 is functionally compatible as a substitute. Both parts share identical pitch (2.54mm), row spacing (2.54mm), mounting type (surface mount), and electrical ratings (3A per contact, 250V). The primary difference is the position count: M20-8762042 provides 40 positions versus 38 positions in the original part. Design verification is required to confirm that the additional two positions do not conflict with board layout or mating connector specifications.

Q: What are the key differences between Harwin M20 and Samtec TSM-119 series connectors?

A: The primary differences are contact material (Brass vs. Phosphor Bronze), insulation material (Polyamide PA6T vs. Liquid Crystal Polymer), and operating temperature range (-40°C to 105°C vs. -55°C to 125°C). Samtec TSM-119 parts offer extended temperature performance and multiple contact finish options. Both maintain identical pitch, position count (38), and core mechanical specifications. Selection depends on application temperature requirements and supply chain preferences.

Q: Does contact length variation affect mechanical compatibility?

A: Contact length differences between M20-8761942P (0.228" / 5.80mm) and TSM-119 series (0.320" / 8.13mm) may affect mating depth and stacking height. Design verification with mating connector specifications is required before substitution. The increased contact length in TSM-119 parts provides extended engagement depth, which may be beneficial in high-vibration or high-reliability applications.

Q: What packaging options are available for the substitute parts?

A: M20-8762042 is supplied in bulk packaging. Samtec TSM-119 series offers multiple packaging formats: standard bulk, tube packaging (TSM-119-02-F-DV-A, TSM-119-02-G-DV-A), and tape & reel with pick-and-place features (TSM-119-02-S-DV-A-P-TR). Tape & reel packaging is recommended for automated assembly processes.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (M20-8762042 and all TSM-119-02 variants) maintain ROHS3 compliance status, matching the original M20-8761942P specification. All parts are also UL94 V-0 rated and MSL 1 classified.

Q: What is the significance of contact finish variations in the TSM-119 series?

A: Contact finish variations (F, G, H, LM designations) specify different gold plating thicknesses and post-contact finishes. TSM-119-02-G-DV and TSM-119-02-H-DV feature gold post finishes (3.00µin and 3.00µin respectively) with enhanced mating finishes (10.0µin and 30.0µin), providing superior corrosion resistance and contact reliability compared to tin post finishes. Selection depends on environmental exposure and contact durability requirements.

Q: Can TSM-119-02-S-DV-A-P-TR be used in manual assembly applications?

A: TSM-119-02-S-DV-A-P-TR is optimized for automated pick-and-place assembly with tape & reel packaging and board guide features. While it can be used in manual assembly, the tape & reel format and board guide design are specifically engineered for high-volume automated processes. For manual assembly, standard bulk or tube packaging variants (TSM-119-02-F-DV or TSM-119-02-G-DV-A) may be more practical.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message