Equivalent & Substitute Parts for M22-5520646

Part Overview

The M22-5520646 is a rectangular connector header manufactured by Harwin Inc., designed for surface mount applications with 12 positions at 0.079" (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 features a cuttable header design with unshrouded configuration, suitable for board-to-board connectivity in compact applications.

Substiute Parts

M22-5520646

Harwin Inc.In Stock: 884M22-5520646 Datasheet

Current PartRFQ

M22-5320605

Harwin Inc.In Stock: 657M22-5320605 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M22-5520646 is based on strict alignment of the following critical parameters:

• Pitch - Mating: 0.079" (2.00mm)
• Number of Positions: 12
• Number of Rows: 2
• Row Spacing - Mating: 0.079" (2.00mm)
• Connector Type: Header, Cuttable
• Contact Type: Male Pin
• Mounting Type: Surface Mount
• Termination: Solder
• Insulation Material: Polyamide (PA6T), Nylon 6T
• Operating Temperature Range: -40°C ~ 105°C
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

The substitute part M22-5320605 maintains these core parameters while remaining within the M22 series family. Variations in contact finish, contact length, and current rating are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

The M22-5320605 is the manufacturer-recommended substitute for the obsolete M22-5520646. Both parts maintain identical pitch, position count, row configuration, and thermal operating range. The substitute part carries Active product status, ensuring continued availability and supply chain support.

Key differences requiring design consideration:

• Contact Length - Mating: The substitute features a reduced mating contact length of 0.138" (4.60mm) compared to 0.165" (4.20mm) in the original part. This reduction may affect mating depth and connector engagement characteristics in applications with specific board-to-board spacing requirements.

• Contact Finish: The substitute employs gold plating on mating contacts, replacing the tin finish of the original part. Gold finish provides enhanced corrosion resistance and improved contact reliability in demanding environmental conditions.

• Current Rating: The substitute is rated at 1A per contact, compared to 2A for the original part. Applications requiring the full 2A current capacity per contact must evaluate alternative solutions or implement parallel contact configurations.

Both parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and unlimited moisture sensitivity level (MSL 1), ensuring regulatory and environmental compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can M22-5320605 be used as a direct replacement for M22-5520646 in all applications?

A: The M22-5320605 is mechanically and electrically compatible for applications where the reduced mating contact length (4.60mm vs. 4.20mm) and lower current rating per contact (1A vs. 2A) do not conflict with design requirements. Board-to-board spacing and current distribution must be evaluated for each application.

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

A: Tin finish provides cost-effective corrosion resistance suitable for standard applications. Gold finish offers superior corrosion resistance, lower contact resistance, and improved reliability in high-reliability or harsh environment applications. The choice depends on application requirements and environmental exposure.

Q: Are the mated stacking heights identical between the two parts?

A: Yes, both parts support identical mated stacking heights of 4.6mm and 6.8mm, ensuring compatibility with mating connector designs and PCB layout specifications.

Q: Why is the current rating lower for the substitute part?

A: The M22-5320605 is rated at 1A per contact, while the original M22-5520646 is rated at 2A. This difference reflects the design specifications of each part. Applications requiring 2A per contact must verify that the substitute configuration meets current distribution requirements or implement alternative contact arrangements.

Q: Are both parts RoHS and REACH compliant?

A: Yes, both M22-5520646 and M22-5320605 are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for electronic component manufacturing and use.

Q: What is the packaging difference between these parts?

A: The original M22-5520646 packaging is not specified in available documentation. The M22-5320605 is supplied in bulk packaging. Confirm packaging requirements with procurement specifications for your application.