M20-9970146 Equivalent & Substitute Parts

Part Overview

The M20-9970146 is a 2-position through-hole backplane connector manufactured by Harwin Inc. This connector features a 0.100" (2.54mm) pitch, dual-row configuration, and tin-plated contacts rated for 3A current. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

M20-9970146

Harwin Inc.In Stock: 930M20-9970146 Datasheet

Current PartRFQ

M20-9970246

Harwin Inc.In Stock: 1433M20-9970246 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the M20-9970146 is based on alignment of the following critical parameters:

• Pitch specification: 0.100" (2.54mm) standard spacing
• Mounting configuration: Through-hole solder termination
• Current capacity: 3A rating per contact
• Operating temperature range: -40°C ~ 105°C
• Flammability compliance: UL94 V-0 material rating
• RoHS compliance: ROHS3 Compliant status

The M20-9970246 qualifies as a direct substitute based on these parameters. While the substitute part increases position count to 4 and modifies the connector style to a cuttable header configuration, the fundamental electrical and thermal specifications remain compatible with the original design envelope.

Parameter Comparison

Engineering Selection Recommendations

The M20-9970246 is the designated substitute for the obsolete M20-9970146. Both components maintain identical pitch spacing, current ratings, operating temperature ranges, and flammability compliance. The substitute part carries active product status with confirmed inventory availability, ensuring supply chain continuity.

Selection of the M20-9970246 is supported by:

• Maintained electrical specifications across all critical parameters
• Equivalent thermal operating envelope
• Consistent compliance certifications (ROHS3, UL94 V-0)
• Active manufacturing status with established supply chain
• Same manufacturer and series lineage

The increased position count (4 vs. 2) and cuttable header configuration of the substitute provide design flexibility while preserving backward compatibility with the original electrical interface requirements.

Frequently Asked Questions (FAQ)

Q: Can the M20-9970246 directly replace the M20-9970146 in existing designs?

A: Yes. Both components share identical pitch spacing (0.100"), mounting method (through-hole solder), current rating (3A), and operating temperature range (-40°C ~ 105°C). The substitute's increased position count does not prevent functional substitution in applications requiring only 2 positions.

Q: What is the primary difference between these two connectors?

A: The M20-9970246 provides 4 positions in a cuttable header configuration, compared to the 2-position backplane connector design of the M20-9970146. Both maintain the same 0.100" pitch and electrical specifications.

Q: Are there compliance or certification differences?

A: No. Both parts are ROHS3 Compliant, UL94 V-0 rated, and REACH Unaffected. Compliance certifications are equivalent.

Q: Why is the M20-9970146 listed as obsolete?

A: Product obsolescence reflects manufacturing discontinuation by Harwin Inc. The M20-9970246 represents the active product line continuation within the M20 series.

Q: What packaging is available for the substitute part?

A: The M20-9970246 is supplied in bulk packaging with 1415 pieces currently in stock.