M22-5321746 Equivalent & Substitute Parts

Part Overview

The M22-5321746 is a rectangular connector header manufactured by Harwin Inc., designed for surface mount applications with 34 positions at 2.00mm pitch. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement planning. The part operates within the -40°C to 105°C temperature range and is suitable for board-to-board connections requiring push-pull fastening.

Key Parameters

Parameter	Value
Manufacturer Part Number	M22-5321746
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Series	M22
Product Status	Obsolete
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.079" (2.00mm)
Number of Positions	34
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Termination	Solder
Operating Temperature	-40°C ~ 105°C
Current Rating	1A per Contact
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the M22-5321746 is determined by the following critical parameters:

Manufacturer and Series: Both parts must be from Harwin Inc. M22 series to ensure mechanical and electrical compatibility
Pitch and Row Spacing: Mating pitch of 0.079" (2.00mm) and row spacing of 0.079" (2.00mm) are mandatory for PCB footprint compatibility
Connector Type and Contact Type: Header configuration with male pin contacts and cuttable design
Mounting Type: Surface mount technology requirement
Termination Method: Solder termination for assembly compatibility
Operating Temperature Range: -40°C to 105°C operational envelope
Current Rating: 1A per contact minimum
Compliance Standards: RoHS3 compliance and MSL 1 rating

The substitute part M22-5322205 shares these core parameters, with the primary difference being position count (44 vs. 34), which represents a higher-density variant within the same connector family.

Parameter Comparison

Parameter	M22-5321746 (Main Part)	M22-5322205 (Substitute)
Manufacturer	Harwin Inc.	Harwin Inc.
Series	M22	M22
Product Status	Obsolete	Active
Connector Type	Header, Cuttable	Header, Cuttable
Contact Type	Male Pin	Male Pin
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Number of Positions	34	44
Number of Rows	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount
Termination	Solder	Solder
Contact Length - Mating	0.138" (4.60mm)	0.138" (4.60mm)
Insulation Height	0.059" (1.50mm)	0.059" (1.50mm)
Contact Shape	Square	Square
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	1A per Contact	1A per Contact
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The M22-5322205 is an active product within the Harwin M22 connector family and serves as the direct substitute for the obsolete M22-5321746. Both components maintain identical electrical and mechanical specifications across all critical parameters including pitch, row spacing, contact material, termination method, and operating temperature range.

The primary distinction is the position count: M22-5322205 provides 44 positions compared to the 34 positions of the original part. This higher-density configuration maintains full compatibility with the established M22 series specifications and does not introduce any electrical or thermal derating concerns.

Both parts carry ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current manufacturing standards. The active product status of M22-5322205 provides assured long-term availability and supply chain stability compared to the obsolete M22-5321746.

Frequently Asked Questions (FAQ)

Q: Can M22-5322205 be used as a direct replacement for M22-5321746?

A: M22-5322205 is mechanically and electrically compatible with M22-5321746 across all shared specifications. The primary difference is position count (44 vs. 34). Substitution is feasible when the application design accommodates the higher-density connector or when only a subset of the 44 positions is utilized.

Q: What are the key compatibility factors between these two connectors?

A: Compatibility is ensured through matching pitch (2.00mm), row spacing (2.00mm), contact type (male pin), mounting method (surface mount), termination (solder), and operating temperature range (-40°C to 105°C). Both use identical contact material (phosphor bronze) and insulation material (polyamide PA6T).

Q: Does the position count difference affect electrical performance?

A: No. The current rating (1A per contact) and electrical characteristics remain constant. The additional 10 positions in M22-5322205 do not degrade performance of utilized contacts.

Q: Are there packaging or MSL considerations for substitution?

A: Both parts carry MSL 1 (Unlimited) rating, eliminating moisture sensitivity concerns. M22-5322205 is supplied in bulk packaging, consistent with standard connector distribution formats.

Q: What is the significance of M22-5321746 being obsolete?

A: Obsolete status indicates the part is no longer manufactured. M22-5322205, with active product status, ensures continued availability and manufacturing support for new designs or legacy system updates.

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