M22-2741046 Equivalent & Substitute Parts

Part Overview

The M22-2741046 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole, right-angle board-to-board or cable applications. This connector features a 20-position, 2-row configuration with 0.079" (2.00mm) pitch and is rated for 2A current at operating temperatures from -40°C to 105°C. The part is classified as obsolete, making identification of active equivalent components essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	M22-2741046
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Series	M22
Connector Type	Header, Cuttable
Contact Type	Male Pin
Number of Positions	20
Number of Rows	2
Pitch - Mating	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Current Rating	2A
Operating Temperature	-40°C ~ 105°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the M22-2741046 is based on strict electrical and mechanical compatibility within the M22 series. The following parameters define acceptable substitutes:

Connector type: Header, cuttable
Contact type: Male pin
Number of positions and rows: 20 positions, 2 rows
Pitch and row spacing: 0.079" (2.00mm)
Mounting configuration: Through hole, right angle
Termination method: Solder
Current rating: 2A minimum
Operating temperature range: -40°C to 105°C minimum
Material compliance: UL94 V-0, ROHS3 Compliant, REACH Unaffected

The M22-2541005 meets all these criteria and is classified as an active product, providing continuity for applications currently using the obsolete M22-2741046.

Parameter Comparison

Parameter	M22-2741046 (Main Part)	M22-2541005 (Substitute)
Manufacturer	Harwin Inc.	Harwin Inc.
Series	M22	M22
Connector Type	Header, Cuttable	Header, Cuttable
Contact Type	Male Pin	Male Pin
Number of Positions	20	20
Number of Rows	2	2
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder
Contact Length - Mating	0.165" (4.20mm)	0.138" (4.60mm)
Contact Length - Post	0.094" (2.40mm)	0.094" (2.40mm)
Insulation Height	0.157" (4.00mm)	0.157" (4.00mm)
Contact Shape	Square	Square
Contact Finish - Mating	Tin	Gold
Contact Material	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C
Current Rating	2A	2A
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Obsolete	Active

Engineering Selection Recommendations

The M22-2541005 is the direct active equivalent for the obsolete M22-2741046. Both components share identical electrical specifications, mechanical dimensions, and material compliance certifications. The M22-2541005 maintains ROHS3 compliance and UL94 V-0 flammability rating, ensuring regulatory continuity for applications requiring these certifications.

The primary difference between the two parts is the contact finish: the M22-2741046 uses tin plating, while the M22-2541005 uses gold plating on mating contacts. Gold plating provides enhanced corrosion resistance and improved contact reliability in environments subject to oxidation or repeated mating cycles. The M22-2541005 also features a slightly shorter mating contact length (0.138" versus 0.165"), which remains within acceptable mechanical tolerances for standard board-to-board applications.

For new designs or component replacement in existing applications, the M22-2541005 is the recommended selection due to its active product status and superior contact finish characteristics.

Frequently Asked Questions (FAQ)

Q: Can the M22-2541005 directly replace the M22-2741046 in existing designs?

A: Yes. Both connectors share identical pitch, row spacing, number of positions, mounting type, and electrical ratings. The mechanical and electrical interfaces are fully compatible for board-to-board and cable applications.

Q: What is the significance of the contact finish difference between tin and gold?

A: Gold plating on the M22-2541005 provides superior corrosion resistance and maintains lower contact resistance over extended service life compared to tin plating. This is particularly beneficial in applications with frequent mating cycles or exposure to humid environments.

Q: Are there any dimensional concerns with the shorter mating contact length on the M22-2541005?

A: No. The mating contact length difference (0.138" versus 0.165") does not affect mechanical compatibility. Both lengths are within standard tolerances for M22 series connectors and accommodate typical PCB thicknesses and mating depths.

Q: Does the M22-2541005 maintain the same compliance certifications as the M22-2741046?

A: Yes. The M22-2541005 is ROHS3 compliant, UL94 V-0 rated, and REACH unaffected, matching the compliance profile of the obsolete M22-2741046.

Q: What is the availability difference between these two parts?

A: The M22-2741046 is obsolete with limited remaining inventory. The M22-2541005 is an active product with significantly higher stock availability, ensuring reliable procurement for current and future applications.

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