Harwin M22-5320905P Surface Mount Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Harwin M22-5320905P is a surface mount rectangular connector header with 18 positions at 2.00mm pitch, designed for board-to-board applications. This connector features a cuttable design, unshrouded configuration, and gold-plated phosphor bronze contacts rated for 1A per contact. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where this connector type is specified.

Substiute Parts

M22-5320905P

Harwin Inc.In Stock: 996M22-5320905P Datasheet

Current PartRFQ

M22-5321005

Harwin Inc.In Stock: 1763M22-5321005 Datasheet

MFR RecommendedRFQ

0877591815

MolexIn Stock: 7890877591815 Datasheet

MFR RecommendedRFQ

0877591864

MolexIn Stock: 9170877591864 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M22-5320905P is determined by the following critical parameters:

Primary Matching Criteria:

• Pitch - Mating: 0.079" (2.00mm)
• Number of Rows: 2
• Mounting Type: Surface Mount
• Contact Type: Male Pin
• Termination: Solder
• Fastening Type: Push-Pull
• Connector Style: Board to Board
• Shrouding: Unshrouded
• Contact Material: Phosphor Bronze
• Contact Finish - Mating: Gold
• Insulation Material: Polyamide (PA) or Nylon-based
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

Position Flexibility: The M22-5320905P specifies 18 positions. The substitute M22-5321005 provides 20 positions within the same M22 series. This represents a compatible upgrade path where the increased position count maintains full backward compatibility for applications requiring 18 positions, as the connector remains cuttable and the pitch and row spacing remain identical.

Molex Alternatives: The Molex 0877591815 and 0877591864 (both Milli-Grid 87759 series) match the 18-position, 2.00mm pitch, 2-row configuration with identical contact type, termination, and fastening specifications. These connectors are classified as breakaway headers rather than cuttable, representing an alternative mechanical implementation of the same electrical interface.

Parameter Comparison

Engineering Selection Recommendations

Harwin M22-5321005 (20-Position Variant): This connector is the primary recommended substitute within the Harwin M22 series. It maintains identical electrical and mechanical specifications to the M22-5320905P while offering increased position capacity (20 vs. 18). The M22-5321005 is currently in active production status, ensuring long-term availability and supply chain stability. Both connectors share the same pitch, row spacing, mounting type, contact materials, and compliance certifications. The cuttable design is preserved, allowing for position reduction to match legacy 18-position requirements. This option is optimal for applications where supply continuity and design consistency within a single manufacturer ecosystem are priorities.

Molex 0877591815 and 0877591864 (Milli-Grid 87759 Series): Both Molex alternatives provide exact 18-position matching with identical pitch, row spacing, and contact specifications. These connectors are active products with established supply availability. The primary distinction from the Harwin options is the breakaway header design rather than cuttable configuration, and a marginally longer contact mating length (0.150" vs. 0.138"). The Molex connectors are suitable for applications where cross-manufacturer sourcing is acceptable and where the breakaway mechanical implementation meets design requirements. The 0877591864 variant includes glass-filled nylon insulation material, offering enhanced mechanical properties compared to standard nylon formulations.

Compliance and Regulatory Alignment: All substitute options maintain ROHS3 compliance, UL94 V-0 flammability rating, MSL 1 (unlimited moisture sensitivity), and REACH unaffected status, ensuring regulatory equivalence with the original M22-5320905P specification.

Frequently Asked Questions (FAQ)

Q: Can the M22-5321005 (20-position) directly replace the M22-5320905P (18-position)?

A: Yes. The M22-5321005 maintains identical pitch (2.00mm), row spacing (2.00mm), mounting type (surface mount), contact type (male pin), termination (solder), and fastening mechanism (push-pull). The increased position count does not affect compatibility for applications requiring 18 positions. The cuttable design allows mechanical reduction to 18 positions if required by the application.

Q: What is the difference between cuttable and breakaway header designs?

A: Cuttable headers (M22-5320905P, M22-5321005) allow individual position removal through mechanical cutting of the connector body. Breakaway headers (Molex 0877591815, 0877591864) feature pre-scored sections that separate cleanly without cutting tools. Both designs achieve the same electrical interface and are mechanically compatible with standard 2.00mm pitch receptacles.

Q: Are the Molex alternatives electrically equivalent to the Harwin connectors?

A: Yes. Both Molex alternatives (0877591815 and 0877591864) match the critical electrical parameters: 2.00mm pitch, 2-row configuration, male pin contacts, phosphor bronze material, gold-plated mating surfaces, solder termination, and push-pull fastening. The contact mating length differs slightly (0.150" vs. 0.138"), but this does not affect electrical performance or standard receptacle compatibility.

Q: What is the significance of the contact finish thickness specification on the Molex parts?

A: The Molex 0877591815 specifies 30.0µin (0.76µm) gold plating thickness, while the 0877591864 specifies 15.0µin (0.38µm). Both thicknesses provide adequate corrosion protection and electrical conductivity for standard applications. The difference reflects manufacturing process variations and does not impact functional equivalence for typical board-to-board connector applications.

Q: Why does the M22-5321005 have higher inventory availability than the original M22-5320905P?

A: The M22-5320905P is classified as obsolete, indicating discontinued production. The M22-5321005 is an active product within the same M22 series, representing the current production standard for this connector family. Active status ensures ongoing manufacturing and supply chain support.

Q: Are all substitute options suitable for automotive and telecommunications applications?

A: The Molex connectors (0877591815, 0877591864) explicitly list automotive, general purpose, and telecommunications applications. The Harwin M22 series connectors are general-purpose board-to-board connectors suitable for these application domains. All options maintain UL94 V-0 flammability certification and ROHS3 compliance, supporting use in regulated environments.

Q: What is the MSL rating, and why is it relevant?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture control requirements. All listed connectors carry MSL 1 rating, meaning they do not require special storage conditions or baking procedures prior to assembly, simplifying inventory management and reducing production constraints.