M22-5321046 Equivalent & Substitute Parts

Part Overview

The Harwin M22-5321046 is a surface mount rectangular connector header with 20 positions at 2.00mm pitch, designed for board-to-board applications. This part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The M22 series provides a cuttable header configuration with push-pull fastening and solder termination suitable for compact interconnect applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	M22-5321046
Manufacturer	Harwin Inc.
Category	Rectangular Connectors
Description	CONN HEADER SMD 20POS 2MM
Connector Type	Header, Cuttable
Contact Type	Male Pin
Pitch - Mating	0.079" (2.00mm)
Number of Positions	20
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Termination	Solder
Fastening Type	Push-Pull
Contact Length - Mating	0.138" (4.60mm)
Insulation Height	0.059" (1.50mm)
Contact Shape	Square
Contact Finish - Mating	Tin
Contact Material	Phosphor Bronze
Insulation Material	Polyamide (PA6T), Nylon 6T
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Current Rating (Amps)	1A per Contact
Mated Stacking Heights	4.6mm, 6.8mm
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the M22-5321046 is determined by the following critical parameters that must remain consistent:

Core Electrical & Mechanical Compatibility:

Pitch - Mating: 0.079" (2.00mm)
Number of Positions: 20
Number of Rows: 2
Row Spacing - Mating: 0.079" (2.00mm)
Contact Type: Male Pin
Mounting Type: Surface Mount
Termination: Solder
Fastening Type: Push-Pull
Insulation Height: 0.059" (1.50mm)
Contact Shape: Square
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Acceptable Variations:

Contact Finish - Mating: Tin or Gold (both provide equivalent electrical performance)
Contact Length - Mating: 0.138" (4.60mm) to 0.150" (3.81mm) (within acceptable mating depth tolerance)
Contact Material: Phosphor Bronze or Copper Alloy (both meet electrical requirements)
Insulation Material: Polyamide (PA6T), Polyamide (PA), or Thermoplastic (all UL94 V-0 rated)
Connector Type: Header, Cuttable or Header, Breakaway (both support board-to-board configuration)
Style: Board to Board or Board to Board or Cable (both compatible with application)

Inventory Consideration: Active product status substitutes are preferred over obsolete parts for long-term supply chain reliability.

Parameter Comparison

Parameter	M22-5321046 (Main)	M22-5321005	0877592015	0877592051	0877592075	0877592083	0877596532	0877598054
Manufacturer	Harwin Inc.	Harwin Inc.	Molex	Molex	Molex	Molex	Molex	Molex
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active
Connector Type	Header, Cuttable	Header, Cuttable	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
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)
Number of Positions	20	20	20	20	20	20	20	20
Number of Rows	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)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	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
Contact Length - Mating	0.138" (4.60mm)	0.138" (4.60mm)	0.150" (3.81mm)	0.150" (3.81mm)	0.150" (3.81mm)	0.126" (3.20mm)	0.150" (3.81mm)	0.150" (3.81mm)
Insulation Height	0.059" (1.50mm)	0.059" (1.50mm)	0.059" (1.50mm)	0.059" (1.50mm)	0.059" (1.50mm)	0.059" (1.50mm)	0.059" (1.50mm)	0.059" (1.50mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Tin	Gold	Gold	Gold	Gold	Tin	Tin	Gold
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T	Polyamide (PA), Nylon	Thermoplastic	Polyamide (PA), Nylon	Polyamide (PA), Nylon, Glass Filled	Thermoplastic	Thermoplastic
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
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
Packaging	-	Bulk	Tube	Tube	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	-
Inventory Status	966 Pcs	1738 Pcs	1188 Pcs	696 Pcs	873 Pcs	1163 Pcs	815 Pcs	674 Pcs

Engineering Selection Recommendations

All listed substitute parts meet the core electrical and mechanical requirements for direct replacement of the M22-5321046. Selection should be based on the following criteria:

Primary Recommendation: M22-5321005 This Harwin part maintains identical specifications to the main part while offering active product status. It provides continuity within the same manufacturer ecosystem and is available in bulk packaging with the highest inventory level (1738 pcs).

Secondary Recommendations: Molex Milli-Grid Series (0877592015, 0877592051, 0877592075, 0877592083, 0877596532, 0877598054) All Molex alternatives are active products with established supply chain availability. These parts meet all critical substitution parameters and offer various packaging options:

Tube packaging (0877592015, 0877592051) for manual assembly
Tape & Reel packaging (0877592075, 0877592083, 0877596532) for automated pick-and-place operations
Contact length variation (0877592083 at 0.126" vs. standard 0.150") requires board layout verification

Compliance Verification: All substitute parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and REACH unaffected status, ensuring regulatory alignment with the original part.

Frequently Asked Questions (FAQ)

Q: Can M22-5321005 be used as a direct drop-in replacement for M22-5321046? A: Yes. M22-5321005 maintains identical pitch (2.00mm), position count (20), row configuration (2 rows), contact type (male pin), mounting method (surface mount), and all critical electrical parameters. The primary difference is active product status versus obsolete status.

Q: What is the difference between Harwin M22-5321005 and Molex Milli-Grid alternatives? A: Both meet core substitution requirements. Harwin M22-5321005 offers same-manufacturer continuity. Molex alternatives provide established multi-source availability and packaging flexibility (tube, tape & reel). Contact length varies slightly (0.138" to 0.150"), which is within acceptable mating depth tolerance for standard board-to-board applications.

Q: Does contact finish (tin vs. gold) affect substitutability? A: No. Both tin and gold finishes provide equivalent electrical performance for this connector class. Gold finish (M22-5321005, Molex 0877592015, 0877592051, 0877592075, 0877598054) offers enhanced corrosion resistance. Tin finish (M22-5321046, Molex 0877592083, 0877596532) is standard for general-purpose applications.

Q: Are there packaging considerations for automated assembly? A: Yes. Tape & Reel packaging (0877592075, 0877592083, 0877596532) is optimized for pick-and-place equipment. Tube packaging (0877592015, 0877592051) and bulk packaging (M22-5321005) require manual or semi-automated handling.

Q: What is the significance of the contact length variation in 0877592083? A: 0877592083 features 0.126" (3.20mm) mating contact length versus the standard 0.150" (3.81mm). This shorter length requires verification that mating depth on the receiving connector accommodates the reduced engagement. Consult mating connector specifications before selection.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for EU and global markets.

Q: Which substitute offers the best long-term supply availability? A: M22-5321005 and all Molex alternatives carry active product status with established manufacturing roadmaps. Molex Milli-Grid series (base product 087759) represents a mature, multi-variant platform with broad market adoption, supporting extended supply chain stability.

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