M20-8763542 Equivalent & Substitute Parts

Part Overview

The M20-8763542 is a rectangular connector header manufactured by Harwin Inc., designed for surface mount applications with 70 positions at 2.54mm pitch. This component is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The connector features a cuttable, unshrouded header configuration with male pins, suitable for board-to-board or cable interconnection applications.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Number of Positions	70
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
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

The GBC35DABN-M30 from Sullins Connector Solutions qualifies as a functional substitute based on the following critical parameters:

Matching Parameters:

Number of Positions: 70
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
Fastening Type: Push-Pull
Style: Board to Board or Cable
Shrouding: Unshrouded
Insulation Height: 0.100" (2.54mm)
Contact Shape: Square
Contact Finish - Mating: Gold
Contact Finish - Post: Tin
Insulation Material: Polyamide (PA9T), Nylon 9T
Material Flammability Rating: UL94 V-0
Insulation Color: Black
Current Rating: 3A
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected
ECCN: EAR99
HTSUS: 8536.69.4040

The substitute maintains electrical and mechanical compatibility through identical mating pitch, position count, row configuration, and contact specifications. Both components meet the same regulatory compliance standards and flammability requirements.

Parameter Comparison

Parameter	M20-8763542 (Harwin)	GBC35DABN-M30 (Sullins)
Manufacturer	Harwin Inc.	Sullins Connector Solutions
Product Status	Obsolete	Active
Number of Positions	70	70
Number of Rows	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Contact Type	Male Pin	Male Pin
Mounting Type	Surface Mount	Surface Mount
Termination	Solder	Solder
Contact Length - Mating	0.228" (5.80mm)	0.230" (5.84mm)
Contact Material	Brass	Phosphor Bronze
Insulation Material	Polyamide (PA6T), Nylon 6T	Polyamide (PA9T), Nylon 9T
Operating Temperature	-40°C ~ 105°C	-65°C ~ 150°C
Current Rating	3A per Contact	3A
Voltage Rating	250V	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The GBC35DABN-M30 is suitable as a direct substitute for the obsolete M20-8763542 based on product status and compliance alignment. The Sullins component is currently in active production, ensuring supply chain continuity. Both parts maintain ROHS3 compliance and UL94 V-0 flammability certification, meeting regulatory requirements for equivalent applications.

The GBC35DABN-M30 offers an extended operating temperature range (-65°C ~ 150°C versus -40°C ~ 105°C), providing additional thermal margin for applications operating at temperature extremes. The contact length variance (0.230" versus 0.228") falls within acceptable mechanical tolerance for standard mating applications. The phosphor bronze contact material in the substitute provides equivalent electrical performance to the brass contacts in the original component.

Frequently Asked Questions (FAQ)

Q: Can the GBC35DABN-M30 be used as a direct replacement for the M20-8763542 in existing designs?

A: Yes. Both connectors share identical mating pitch (2.54mm), position count (70), row configuration (2 rows), and contact specifications. The mechanical and electrical parameters align for direct substitution in board-to-board and cable applications.

Q: What are the key differences between these two connectors?

A: The primary differences are contact material (brass versus phosphor bronze), insulation polymer grade (PA6T versus PA9T), and operating temperature range. The GBC35DABN-M30 supports a wider temperature range (-65°C to 150°C) compared to the M20-8763542 (-40°C to 105°C). Contact length differs by 0.04mm (5.80mm versus 5.84mm), which is within standard mechanical tolerance.

Q: Are both connectors RoHS compliant?

A: Yes. Both the M20-8763542 and GBC35DABN-M30 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing.

Q: What is the difference between "Cuttable" and "Breakaway" connector types?

A: Both designations refer to headers that can be separated into individual or smaller groups of pins. The M20-8763542 is specified as cuttable, while the GBC35DABN-M30 is specified as breakaway. Both configurations support the same functional capability for modular pin separation.

Q: Does the voltage rating difference affect substitution?

A: The M20-8763542 specifies 250V, while the GBC35DABN-M30 does not specify a voltage rating in the provided data. For applications requiring explicit voltage rating confirmation, contact the manufacturer. For standard logic-level and low-voltage applications, both connectors are suitable.

Q: What is the current rating for each connector?

A: Both connectors are rated for 3A per contact, providing equivalent current-carrying capacity for interconnection applications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message