M20-9950446 Equivalent & Substitute Parts

Part Overview

The M20-9950446 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole, right-angle mounting with 8 positions at 0.100" (2.54mm) pitch. This connector features male pins with tin contact finish and is rated for 3A per contact across an operating temperature range of -40°C to 105°C. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	M20-9950446 Specification
Manufacturer	Harwin Inc.
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	8
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Contact Finish - Mating	Tin
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
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the M20-9950446 is determined by the following critical parameters:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 8
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole, Right Angle
Contact Type: Male Pin
Termination: Solder
Fastening Type: Push-Pull
Shrouding: Unshrouded
Style: Board to Board or Cable

Substitute parts must maintain these core electrical and mechanical parameters to ensure physical and functional compatibility. Variations in contact finish, contact material, insulation material, and operating temperature ranges are permissible provided the connector maintains the same mating interface and pin configuration.

Parameter Comparison

Parameter	M20-9950446	M20-9950445	0717640208	77317-112-08LF	77317-812-08LF	802-10-008-20-001101	861400082LO1332LF	892-18-008-20-002101	961208-5804-AR
Manufacturer	Harwin	Harwin	Molex	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Preci-Dip	Amphenol ICC (FCI)	Preci-Dip	3M
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)
Number of Positions	8	8	8	8	8	8	8	8	8
Number of Rows	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)
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	Through Hole, Right Angle
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Termination	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
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Style	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board	Board to Board
Contact Finish - Mating	Tin	Gold	Gold	Gold, GXT™	Gold, GXT™	Gold	Tin	Gold	Gold
Contact Material	Brass	Brass	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Brass	Copper Alloy	Brass	Copper Alloy
Insulation Material	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T	Thermoplastic	Thermoplastic	Thermoplastic	Polycyclohexylenedimethylene Terephthalate (PCT), Polyester, Glass Filled	Thermoplastic	Polyamide (PA), Nylon, Glass Filled	Thermoplastic
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	Not Specified	-65°C ~ 130°C	-65°C ~ 130°C	-55°C ~ 125°C	-40°C ~ 100°C	-55°C ~ 125°C	-25°C ~ 105°C
Current Rating	3A per Contact	3A per Contact	Not Specified	3A per Contact	3A per Contact	3A	3A	3A	2A
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
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS non-compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

M20-9950445 is the manufacturer-recommended direct replacement from Harwin Inc. This part maintains identical electrical and mechanical specifications while offering active product status and improved availability. Both parts are ROHS3 compliant and share the same operating temperature range.

For applications requiring extended temperature performance, 77317-112-08LF, 77317-812-08LF, 892-18-008-20-002101, and 802-10-008-20-001101 support operating ranges of -55°C to 125°C or -55°C to 130°C. These alternatives maintain the core 8-position, 2.54mm pitch configuration and are all UL94 V-0 rated.

The 0717640208 from Molex (C-Grid 71764 series) provides an active alternative with identical pitch and position count, though operating temperature is not specified in available documentation.

961208-5804-AR from 3M is functionally compatible but features a reduced current rating of 2A per contact compared to the 3A specification of the original part. This should be evaluated against application requirements.

77317-812-08LF carries RoHS non-compliant status and should be avoided in applications requiring RoHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can M20-9950445 be used as a direct replacement for M20-9950446?

A: Yes. M20-9950445 is the manufacturer-recommended equivalent from Harwin Inc. Both parts share identical pitch (0.100"), position count (8), row configuration (2 rows), mounting type (through-hole right-angle), and current rating (3A per contact). The primary difference is product status: M20-9950446 is obsolete while M20-9950445 is active.

Q: What are the key compatibility criteria for substituting these connectors?

A: Substitution requires matching the following parameters: 0.100" (2.54mm) mating pitch, 8 positions in 2 rows with 0.100" row spacing, through-hole right-angle mounting, male pin contact type, solder termination, push-pull fastening, and unshrouded design. Variations in contact finish, contact material, and insulation material are acceptable provided the mating interface remains unchanged.

Q: Are there current rating differences among the substitute parts?

A: Most substitutes maintain the 3A per contact rating. The exception is 961208-5804-AR from 3M, which is rated for 2A per contact. Applications requiring 3A per contact should avoid this part.

Q: Which substitutes offer the widest operating temperature range?

A: 77317-112-08LF, 77317-812-08LF, and 892-18-008-20-002101 support -65°C to 130°C, providing the broadest temperature coverage among available alternatives.

Q: Are all substitute parts RoHS3 compliant?

A: No. M20-9950445, 0717640208, 802-10-008-20-001101, 892-18-008-20-002101, and 861400082LO1332LF are ROHS3 compliant or RoHS compliant. 77317-812-08LF is explicitly RoHS non-compliant and should not be used in applications requiring RoHS3 compliance.

Q: What is the difference between cuttable and breakaway connector types?

A: M20-9950446 features a cuttable design, allowing individual positions to be separated. Most substitutes use breakaway designs, which also allow position separation but through a different mechanical approach. Both designs maintain the same mating interface and are functionally interchangeable.

Q: Do packaging differences affect compatibility?

A: No. Packaging (bulk, tube, bag) affects handling and storage but does not impact electrical or mechanical compatibility. Select packaging based on procurement and assembly requirements.

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