M20-9743142 Rectangular Connector Header Right Angle 62 Position 2.54mm Equivalent & Substitute Parts

Part Overview

The Harwin M20-9743142 is a through-hole rectangular connector header with right-angle mounting, 62 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and component sourcing. The part features male pins with gold-plated mating contacts and tin-plated posts, designed for board-to-board or cable applications with push-pull fastening.

Key Parameters

Parameter	Value
Connector Type	Header, Right Angle
Contact Type	Male Pin
Number of Positions	62
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Current Rating	3A per Contact
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the M20-9743142 is determined by strict alignment of the following critical parameters:

Core Electrical & Mechanical Compatibility:

Connector type: Header, right-angle mounting
Contact configuration: Male pin, 62 positions in 2 rows
Pitch specification: 0.100" (2.54mm) mating pitch and row spacing
Termination method: Solder
Fastening mechanism: Push-Pull
Current rating: 3A per contact minimum
Mounting style: Through hole, board-to-board or cable compatible

Environmental & Compliance Requirements:

Operating temperature range: Must support -40°C minimum and 105°C maximum
Flammability rating: UL94 V-0
RoHS compliance: ROHS3 or equivalent
Moisture sensitivity: MSL 1 (Unlimited)

The substitute parts listed below meet all core compatibility criteria. Variations in contact material (phosphor bronze vs. brass), contact finish specifications (gold thickness, tin plating), insulation material (thermoplastic vs. polyamide), and packaging format do not affect functional interchangeability in standard applications where the M20-9743142 was specified.

Parameter Comparison

Parameter	M20-9743142 (Harwin)	77317-103-62LF (Amphenol ICC)	77317-104-62LF (Amphenol ICC)	77317-403-62LF (Amphenol ICC)	77317-404-62LF (Amphenol ICC)	77317-803-62LF (Amphenol ICC)	77317-804-62LF (Amphenol ICC)	PBC31DBBN (Sullins)
Manufacturer	Harwin Inc.	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Sullins Connector Solutions
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
Connector Type	Header, Cuttable	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Number of Positions	62	62	62	62	62	62	62	62
Number of Rows	2	2	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)	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)	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
Termination	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
Contact Length - Mating	0.228" (5.80mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.118" (3.00mm)	0.100" (2.54mm)	0.120" (3.05mm)	0.100" (2.54mm)	0.120" (3.05mm)	0.100" (2.54mm)	0.120" (3.05mm)	0.200" (5.08mm)
Insulation Height	0.200" (5.08mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.190" (4.83mm)	0.240" (6.10mm)
Contact Material	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Gold	Gold, GXT™	Gold, GXT™	Tin	Tin	Gold, GXT™	Gold, GXT™	Gold
Contact Finish - Post	Tin	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Insulation Material	Polyamide (PA6T), Nylon 6T	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Polybutylene Terephthalate (PBT)
Operating Temperature	-40°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 ~ 125°C
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
Current Rating	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A per Contact	3A
RoHS Status	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable

Engineering Selection Recommendations

All listed substitute parts are functionally compatible with the M20-9743142 for applications requiring a 62-position, 2-row, 0.100" pitch right-angle header connector with solder termination and push-pull fastening.

Active Product Status: All substitute parts from Amphenol ICC (77317 series) and Sullins (PBC31DBBN) maintain active product status, ensuring long-term availability and manufacturing support. The original M20-9743142 is obsolete and should be replaced in new designs.

Compliance & Certifications: All substitute parts meet UL94 V-0 flammability requirements and RoHS compliance standards. The Amphenol ICC parts carry RoHS Compliant status, while the Harwin original and Sullins part are ROHS3 Compliant. All parts maintain MSL 1 (Unlimited) moisture sensitivity classification, indicating no special handling requirements during storage or assembly.

Temperature Operating Range: Substitute parts from Amphenol ICC and Sullins provide extended operating temperature ranges (-65°C to 130°C and -65°C to 125°C respectively) compared to the original part (-40°C to 105°C), offering improved performance margin in thermal extremes.

Contact Post Length Variations: The 77317-103-62LF, 77317-403-62LF, and 77317-803-62LF feature 0.100" (2.54mm) post length, while 77317-104-62LF, 77317-404-62LF, and 77317-804-62LF provide 0.120" (3.05mm) post length. The PBC31DBBN offers 0.200" (5.08mm) post length. Selection depends on PCB thickness and solder joint requirements in the target application.

Contact Finish Options: Amphenol ICC parts 77317-103-62LF, 77317-104-62LF, 77317-803-62LF, and 77317-804-62LF feature gold-plated mating contacts with varying thickness specifications. Parts 77317-403-62LF and 77317-404-62LF provide tin-plated mating contacts. The Sullins PBC31DBBN includes gold-plated mating contacts. Selection should align with existing connector socket specifications and contact wear requirements.

Frequently Asked Questions (FAQ)

Q: Can the 77317-103-62LF directly replace the M20-9743142 in existing designs?

A: Yes. The 77317-103-62LF meets all core compatibility requirements: 62 positions, 2 rows, 0.100" pitch, right-angle through-hole mounting, solder termination, and push-pull fastening. The primary difference is the contact post length (0.100" vs. 0.118"), which is compatible with standard PCB thicknesses. Verify PCB hole sizing and solder joint clearance for your specific application.

Q: What is the difference between the 77317-103-62LF and 77317-104-62LF?

A: Both parts are electrically and mechanically identical except for contact post length. The 77317-103-62LF has 0.100" (2.54mm) posts, while the 77317-104-62LF has 0.120" (3.05mm) posts. Select based on PCB thickness: use the 0.100" version for standard 1.6mm PCBs and the 0.120" version for thicker boards or applications requiring additional solder joint length.

Q: Are the Amphenol ICC 77317 series parts interchangeable with the Sullins PBC31DBBN?

A: All parts are functionally compatible for the same 62-position, 2-row, 0.100" pitch header application. However, the PBC31DBBN has a longer contact post (0.200" vs. 0.100-0.120") and taller insulation height (0.240" vs. 0.190"), which may affect PCB layout and mating connector clearance. Verify mechanical fit before substitution.

Q: What is the difference between gold-plated and tin-plated mating contacts?

A: Gold-plated contacts (77317-103-62LF, 77317-104-62LF, 77317-803-62LF, 77317-804-62LF, PBC31DBBN) provide superior corrosion resistance and lower contact resistance, suitable for high-reliability applications. Tin-plated contacts (77317-403-62LF, 77317-404-62LF) are cost-effective for standard industrial applications. Both meet the 3A per contact current rating and UL94 V-0 flammability requirement.

Q: Does the extended operating temperature range of substitute parts affect compatibility?

A: No. The substitute parts' extended temperature ranges (-65°C to 130°C or -65°C to 125°C) are backward compatible with the original specification (-40°C to 105°C). Applications operating within the original temperature range will function identically with substitute parts.

Q: What packaging formats are available for these substitute parts?

A: Amphenol ICC 77317 series parts are available in Bag or Bulk packaging. The Sullins PBC31DBBN is supplied in Bulk packaging. Packaging format does not affect electrical or mechanical performance; selection depends on inventory management and procurement requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts meet RoHS compliance requirements. Amphenol ICC parts carry RoHS Compliant status, while the Sullins PBC31DBBN is ROHS3 Compliant. Both standards are acceptable for current design requirements.

Q: What is the significance of the GXT™ gold finish on Amphenol ICC parts?

A: GXT™ is Amphenol's proprietary gold plating specification providing enhanced durability and contact reliability. Parts with GXT™ finish (77317-103-62LF, 77317-104-62LF, 77317-803-62LF, 77317-804-62LF) offer improved performance in high-cycle mating applications compared to standard gold plating.

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