M20-8762846 Equivalent & Substitute Parts

Part Overview

The M20-8762846 is a rectangular connector header manufactured by Harwin Inc., designed for surface mount applications with 56 positions at 0.100" (2.54mm) pitch. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement planning. The cuttable header configuration with unshrouded design serves board-to-board or cable interconnection applications requiring push-pull fastening.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	56
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Surface Mount
Termination	Solder
Fastening Type	Push-Pull
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 eligibility for the M20-8762846 is determined by strict alignment with the following critical parameters:

Connector pitch of 0.100" (2.54mm)
56-position configuration with 2-row layout
Surface mount termination with solder connection
Male pin contact type
Push-pull fastening mechanism
Unshrouded header design
Board-to-board or cable style application
UL94 V-0 flammability compliance
ROHS3 compliance status

The GEC28DABN-M30 from Sullins Connector Solutions meets these substitution criteria. While the substitute part exhibits differences in connector type classification (breakaway versus cuttable), contact material (phosphor bronze versus brass), and insulation material composition (PA9T versus PA6T), these variations remain within acceptable tolerance for functional equivalence in the specified application context.

Parameter Comparison

Parameter	M20-8762846 (Harwin)	GEC28DABN-M30 (Sullins)
Manufacturer	Harwin Inc.	Sullins Connector Solutions
Product Status	Obsolete	Active
Connector Type	Header, Cuttable	Header, Breakaway
Contact Type	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	56	56
Number of Rows	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Surface Mount	Surface Mount
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.228" (5.80mm)	0.230" (5.84mm)
Insulation Height	0.100" (2.54mm)	0.100" (2.54mm)
Contact Shape	Square	Square
Contact Finish - Mating	Tin	Tin
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
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Current Rating	3A per Contact	3A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The GEC28DABN-M30 serves as the primary substitute for the obsolete M20-8762846. Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current procurement. The substitute part carries active product status, ensuring ongoing availability and manufacturer support.

The GEC28DABN-M30 demonstrates an extended operating temperature range (-65°C ~ 150°C) compared to the original part (-40°C ~ 105°C), providing thermal margin for applications requiring broader environmental tolerance. Contact length variance of 0.002" (0.04mm) between the two parts remains within standard manufacturing tolerances for connector applications.

Material composition differences—phosphor bronze contacts in the substitute versus brass in the original, and PA9T insulation versus PA6T—do not compromise functional equivalence for the specified electrical and mechanical requirements. Both materials maintain the required current rating of 3A and voltage rating specifications.

Frequently Asked Questions (FAQ)

Q: Can the GEC28DABN-M30 directly replace the M20-8762846 in existing designs?

A: Yes. Both components share identical pitch (0.100"), position count (56), row configuration (2), mounting type (surface mount), and termination method (solder). Mechanical and electrical compatibility is maintained across the specified parameter set.

Q: What is the significance of the "cuttable" versus "breakaway" connector type designation?

A: Both designations describe header configurations that allow individual pin removal or section separation. The functional outcome—ability to customize the connector to application-specific requirements—remains equivalent between the two part types.

Q: Does the extended operating temperature range of the GEC28DABN-M30 affect compatibility?

A: No. The substitute part's wider temperature range (-65°C ~ 150°C) is a superset of the original specification (-40°C ~ 105°C). Applications operating within the original temperature envelope experience no compatibility issues.

Q: Are there any contact material considerations when substituting phosphor bronze for brass?

A: Both materials provide adequate conductivity and contact reliability for the 3A per contact current rating. Phosphor bronze offers enhanced spring characteristics and wear resistance, making it suitable for push-pull fastening applications.

Q: What packaging format is available for the GEC28DABN-M30?

A: The substitute part is supplied in bulk packaging, differing from the original part's unspecified packaging format. Verify bulk packaging compatibility with your procurement and assembly processes.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the M20-8762846 and GEC28DABN-M30 maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and hazardous substance regulations.

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