M22-2012146 Equivalent & Substitute Parts

Part Overview

The M22-2012146 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole board-to-board applications. This connector features 21 positions at 0.079" (2.00mm) pitch with male pin contacts and solder termination. The part is currently listed as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	M22-2012146
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Series	M22
Connector Type	Header, Cuttable
Contact Type	Male Pin
Number of Positions	21
Pitch - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Termination	Solder
Operating Temperature	-55°C ~ 105°C
Current Rating	1A per Contact
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the M22-2012146 is determined by strict equivalence across the following critical parameters:

Connector series and family (M22)
Contact count and arrangement (21 positions, single row)
Mating pitch (0.079" / 2.00mm)
Connector type and contact gender (Header, Male Pin)
Mounting method (Through Hole)
Termination type (Solder)
Operating temperature range (-55°C ~ 105°C)
Current rating (1A per Contact)
Flammability compliance (UL94 V-0)
RoHS compliance status

The M22-2012105 meets all these criteria as an active equivalent part within the same M22 series, with identical electrical and mechanical specifications. The primary distinction is the contact finish material on the mating surface.

Parameter Comparison

Parameter	M22-2012146 (Main Part)	M22-2012105 (Substitute)
Manufacturer	Harwin Inc.	Harwin Inc.
Series	M22	M22
Connector Type	Header, Cuttable	Header, Cuttable
Contact Type	Male Pin	Male Pin
Number of Positions	21	21
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	1	1
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Contact Length - Mating	0.138" (4.60mm)	0.138" (4.60mm)
Contact Length - Post	0.134" (3.40mm)	0.134" (3.40mm)
Overall Contact Length	0.331" (8.40mm)	0.331" (8.40mm)
Insulation Height	0.059" (1.50mm)	0.059" (1.50mm)
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	-55°C ~ 105°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Current Rating	1A per Contact	1A per Contact
Mated Stacking Heights	5.9mm, 8.6mm	5.9mm, 8.6mm
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 M22-2012105 is the direct active equivalent for the obsolete M22-2012146. Both parts maintain identical mechanical and electrical specifications within the M22 series, with full compliance to ROHS3 and REACH requirements. The M22-2012105 is currently in active production status with higher inventory availability (2113 pieces in stock versus 705 for the obsolete part).

The primary technical difference is the contact finish on the mating surface: the M22-2012146 uses tin plating, while the M22-2012105 uses gold plating. Gold-plated contacts provide enhanced corrosion resistance and improved contact reliability in applications subject to environmental exposure or extended storage periods. Both finishes are compatible with standard PCB assembly processes and solder termination methods.

For new designs or redesigns of existing applications currently using M22-2012146, the M22-2012105 is the recommended replacement part. For legacy systems requiring exact tin-plated contact specifications, the M22-2012146 remains available from existing inventory.

Frequently Asked Questions (FAQ)

Q: Can M22-2012105 be used as a direct replacement for M22-2012146 in existing designs?

A: Yes. Both parts are mechanically and electrically identical within the M22 series. They share the same 21-position configuration, 2.00mm pitch, through-hole mounting, and solder termination. The gold plating on M22-2012105 contacts provides equivalent or superior performance compared to the tin plating on M22-2012146.

Q: What is the significance of the contact finish difference between these parts?

A: The M22-2012146 features tin-plated mating contacts, while M22-2012105 features gold-plated mating contacts. Gold plating offers superior resistance to oxidation and corrosion, particularly in applications with extended shelf life, high humidity environments, or frequent mating cycles. Both finishes are suitable for standard PCB assembly and solder joint formation.

Q: Are there any packaging differences between M22-2012146 and M22-2012105?

A: The M22-2012146 is supplied in standard packaging, while M22-2012105 is supplied in bulk packaging. Both configurations contain identical connector components and are suitable for production assembly environments.

Q: Why is M22-2012146 listed as obsolete?

A: The M22-2012146 has been superseded by the M22-2012105 within Harwin's product portfolio. The M22-2012105 offers improved contact reliability through gold plating and remains in active production. Existing M22-2012146 inventory is available for legacy system support.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both M22-2012146 and M22-2012105 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

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