M20-9712246 Equivalent & Substitute Parts

Part Overview

The Harwin M20-9712246 is a rectangular connector header featuring a right-angle, through-hole mount configuration with 22 positions at 0.100" (2.54mm) pitch. This connector is classified as obsolete, making equivalent substitute parts necessary for ongoing design support, maintenance, and production continuity. The part serves board-to-board and cable connection applications requiring male pin headers with solder termination and push-pull fastening.

Substiute Parts

M20-9712246

Harwin Inc.In Stock: 920M20-9712246 Datasheet

Current PartRFQ

0022288220

MolexIn Stock: 9860022288220 Datasheet

MFR RecommendedRFQ

0022288222

MolexIn Stock: 11110022288222 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the M20-9712246 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Pitch - Mating: 0.100" (2.54mm)
• Number of Positions: 22
• Number of Rows: 1
• Connector Type: Header
• Mounting Type: Through Hole, Right Angle
• Contact Type: Male Pin
• Termination: Solder
• Fastening Type: Push-Pull
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant

The Molex KK254 series parts 0022288220 and 0022288222 meet these core substitution criteria. Both are active-status rectangular connector headers with identical pitch, position count, row configuration, and mounting characteristics. Variations in contact finish (tin versus gold) and insulation material composition (glass-filled nylon versus standard nylon) represent allowable parameter differences within the substitution scope for this connector category.

Parameter Comparison

Engineering Selection Recommendations

Both Molex substitute parts maintain active product status, ensuring long-term availability and supply chain continuity compared to the obsolete Harwin original. All three parts achieve UL94 V-0 flammability compliance and ROHS3 certification, meeting regulatory requirements for industrial, automotive, medical, and telecommunications applications.

The primary distinction between the two Molex substitutes lies in contact finish specification. Part 0022288220 features tin-plated mating contacts, matching the original M20-9712246 finish. Part 0022288222 specifies gold-plated mating contacts with reduced plating thickness (15.0µin versus 100.0µin on post contacts), providing enhanced corrosion resistance and contact reliability in demanding environmental conditions.

Minor dimensional variations exist in contact length and insulation height between the original and substitutes. The Molex parts exhibit slightly shorter mating contact length (0.244" versus 0.276") and reduced insulation height (0.098" versus 0.100"), which remain within acceptable tolerance ranges for standard board-to-board and cable connection applications. Post contact length remains functionally equivalent (0.120" versus 0.118").

Frequently Asked Questions (FAQ)

Q: Can Molex 0022288220 and 0022288222 be used interchangeably with the Harwin M20-9712246?

A: Both Molex parts are functionally compatible substitutes. They share identical pitch (0.100"), position count (22), row configuration (1), mounting type (through-hole right-angle), and termination method (solder). The primary difference is contact finish: 0022288220 uses tin plating (matching the original), while 0022288222 uses gold plating for enhanced corrosion resistance.

Q: What are the dimensional differences between the original and substitute parts?

A: Contact length on the mating side differs by 0.032" (0.276" original versus 0.244" substitute). Insulation height is 0.002" lower on the Molex parts (0.098" versus 0.100"). Post contact length is nearly identical (0.120" versus 0.118"). These variations are within standard tolerance ranges for connector applications and do not affect functional compatibility in typical board-to-board or cable connection scenarios.

Q: Which substitute part should be selected for new designs?

A: Selection depends on environmental and reliability requirements. Part 0022288220 (tin-plated) is suitable for general-purpose, automotive, medical, and telecommunications applications with standard environmental exposure. Part 0022288222 (gold-plated) is recommended for applications requiring enhanced contact reliability, extended shelf life, or exposure to corrosive environments.

Q: Are all three parts RoHS and flammability compliant?

A: Yes. The Harwin M20-9712246 and both Molex substitutes are ROHS3 compliant and achieve UL94 V-0 material flammability rating, meeting regulatory requirements for industrial and consumer electronics applications.

Q: What is the difference between "Cuttable" and "Breakaway" connector types?

A: Both designations refer to headers that allow individual positions to be separated. The Harwin original specifies "Cuttable," while the Molex substitutes specify "Breakaway." Both configurations provide equivalent functionality for applications requiring position-specific connector separation.

Q: Are the insulation materials compatible?

A: Both materials are polyamide-based nylon compounds meeting UL94 V-0 requirements. The Harwin original uses PA6T nylon, while the Molex substitutes use glass-filled PA nylon. Both provide equivalent electrical insulation, mechanical strength, and thermal performance across the specified operating temperature range (-40°C to 105°C).