M22-2024005 Equivalent & Substitute Parts

Part Overview

The Harwin M22-2024005 is a rectangular connector header with 80 positions at 2.00mm pitch, designed for through-hole board-to-board applications. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The connector features male pins with gold-plated mating contacts, phosphor bronze material, and operates across -40°C to 105°C. Active alternatives from Harwin, Samtec, and 3M provide functional equivalence with varying mechanical and electrical specifications.

Key Parameters

Parameter	M22-2024005
Manufacturer	Harwin Inc.
Number of Positions	80
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Contact Type	Male Pin
Mounting Type	Through Hole
Termination	Solder
Contact Finish - Mating	Gold
Contact Material	Phosphor Bronze
Insulation Material	Polyamide (PA6T), Nylon 6T
Operating Temperature	-40°C ~ 105°C
Current Rating	1A per Contact
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution logic is based on the following critical parameters that must align for functional equivalence:

Number of Positions: 80 (primary requirement)
Pitch - Mating: 0.079" (2.00mm) (mandatory for PCB compatibility)
Number of Rows: 2 (mechanical fit requirement)
Row Spacing - Mating: 0.079" (2.00mm) (board layout constraint)
Contact Type: Male Pin (connector interface requirement)
Mounting Type: Through Hole (assembly process requirement)
Termination: Solder (assembly compatibility)
Fastening Type: Push-Pull (mechanical engagement)
Style: Board to Board (application requirement)

Substitute parts are grouped into two categories:

Category A - Direct Position Match (80 Positions): Parts maintaining identical position count with matching pitch and row configuration. These include Samtec TMM-140 series variants and 3M 951280-8622-AR.

Category B - Position Upgrade (100 Positions): Harwin M22-2025005 provides increased position capacity while maintaining identical pitch and row spacing, suitable for designs requiring additional contact points on the same footprint spacing.

Parameter Comparison

Parameter	M22-2024005	M22-2025005	951280-8622-AR	TMM-140-01-F-D	TMM-140-02-F-D	TMM-140-02-S-D	TMM-140-01-G-D-003	TMM-140-01-LM-D	TMM-140-01-TM-D	TMM-140-06-L-D	TW-40-06-G-D-125-190
Manufacturer	Harwin	Harwin	3M	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec	Samtec
Number of Positions	80	100	80	80	80	80	80	80	80	80	80
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)	0.079" (2.00mm)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	N/A
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Tin	Gold	Gold
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	N/A
Insulation Material	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T	Thermoplastic	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)	N/A
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	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 125°C	N/A
Current Rating	1A per Contact	1A per Contact	1A	3.2A per Contact	3.2A per Contact	3.2A per Contact	3.2A per Contact	3.2A per Contact	3.2A per Contact	3.2A per Contact	N/A
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Recommendation: M22-2025005 (Harwin)

The M22-2025005 is the preferred substitute from the same manufacturer series. It maintains identical pitch, row spacing, and electrical characteristics while offering 100 positions. This part is active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Selection of this part ensures design continuity within the Harwin M22 family and simplifies supply chain management.

Secondary Recommendation: TMM-140-02-F-D or TMM-140-02-S-D (Samtec)

Both Samtec TMM-140 variants provide 80-position equivalence with identical pitch and row configuration. These parts feature higher current rating (3.2A per Contact versus 1A), extended operating temperature range (-55°C to 125°C), and ROHS3 compliance. The TMM-140-02-S-D offers increased gold plating thickness (30.0µin versus 3.00µin) for enhanced contact durability. Both are active products with established supply availability.

Alternative: 951280-8622-AR (3M)

The 3M part maintains 80-position configuration with matching pitch and row spacing. It provides extended temperature range (-55°C to 125°C) and active product status. Contact material differs (Copper Alloy versus Phosphor Bronze) and insulation material is thermoplastic rather than LCP. This option is suitable when 3M supply chain integration is preferred.

Upgrade Path: TMM-140-06-L-D (Samtec)

For applications requiring extended post length (0.192" versus 0.138"), this variant provides identical electrical and mechanical compatibility with increased mating contact length. It maintains 80-position configuration, ROHS3 compliance, and 3.2A current rating.

Spacer Application: TW-40-06-G-D-125-190 (Samtec)

This part functions as a board stacking connector for 80-position 2.00mm pitch applications. It is not a direct substitute but serves specialized board-to-board stacking requirements with defined stack height (0.125") and tail length (0.190").

Frequently Asked Questions (FAQ)

Q: Can M22-2025005 be used as a direct replacement for M22-2024005?

A: M22-2025005 provides functional equivalence for 80-position applications. The 100-position capacity allows use in the same footprint with identical pitch and row spacing. Designs utilizing only 80 positions experience no functional difference. Designs requiring all 100 positions gain additional contact capacity.

Q: What is the primary difference between Samtec TMM-140 variants?

A: TMM-140 variants differ in contact length specifications and finish thickness. TMM-140-01-F-D and TMM-140-02-F-D differ in mating contact length (0.126" versus 0.146") and post length (0.138" versus 0.118"). TMM-140-02-S-D provides thicker gold plating (30.0µin) compared to TMM-140-02-F-D (3.00µin). TMM-140-01-G-D-003 loads 79 positions instead of all 80. TMM-140-01-LM-D and TMM-140-01-TM-D offer reduced gold plating thickness and tin mating finish respectively.

Q: Are Samtec TMM-140 parts compatible with M22-2024005 PCB layouts?

A: Yes. All TMM-140 variants maintain 0.079" (2.00mm) pitch and 2-row configuration with identical row spacing. Through-hole solder termination and push-pull fastening are identical. PCB footprints designed for M22-2024005 accommodate TMM-140 series without modification.

Q: What is the current rating difference between M22-2024005 and substitute parts?

A: M22-2024005 is rated at 1A per contact. Samtec TMM-140 series parts are rated at 3.2A per contact, providing higher current capacity. 3M 951280-8622-AR maintains 1A rating. This difference does not affect compatibility but allows higher current applications with Samtec alternatives.

Q: Does operating temperature range affect substitution?

A: M22-2024005 operates -40°C to 105°C. Samtec TMM-140 variants and 3M 951280-8622-AR extend to -55°C to 125°C, providing wider temperature margin. TMM-140-01-TM-D operates -55°C to 105°C. All parts meet or exceed the original specification. Temperature range differences do not prevent substitution in applications within the original -40°C to 105°C window.

Q: What is the significance of contact finish differences?

A: M22-2024005 features gold-plated mating contacts. Most TMM-140 variants maintain gold finish with varying thickness (3.00µin to 30.0µin). TMM-140-01-TM-D uses tin mating finish. Gold plating provides superior corrosion resistance and contact reliability. Tin finish is acceptable for standard applications but offers reduced corrosion protection compared to gold.

Q: Can TW-40-06-G-D-125-190 replace M22-2024005?

A: No. TW-40-06-G-D-125-190 is a board stacking spacer connector, not a header. It functions as an intermediate connector for board-to-board stacking applications with defined stack height. It is not suitable as a direct replacement for M22-2024005 header applications.

Q: What packaging options are available for substitute parts?

A: M22-2025005 is supplied in bulk packaging. Samtec TMM-140-01-F-D and TMM-140-02-F-D are bulk packaged. TMM-140-02-S-D is bulk packaged. TMM-140-01-G-D-003 and TMM-140-01-LM-D have unspecified packaging. TMM-140-01-TM-D is tube packaged. 3M 951280-8622-AR is bulk packaged. Packaging selection depends on assembly process requirements and inventory management.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. M22-2024005, M22-2025005, all Samtec TMM-140 variants, and 3M 951280-8622-AR are ROHS3 compliant. All parts have moisture sensitivity level 1 (unlimited). All meet REACH unaffected status and EAR99 export classification.

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