M20-9963846 Equivalent & Substitute Parts

Part Overview

The M20-9963846 is a rectangular connector header manufactured by Harwin Inc., designed for through-hole, right-angle mounting applications. This 38-position connector operates at 0.100" (2.54mm) pitch and supports 3A per contact with an operating temperature range of -40°C to 105°C. The part is classified as obsolete, making identification of active equivalent components essential for ongoing design support and procurement continuity.

Substiute Parts

M20-9963846

Harwin Inc.In Stock: 1052M20-9963846 Datasheet

Current PartRFQ

890-80-038-20-001101

Preci-DipIn Stock: 707890-80-038-20-001101 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the M20-9963846 is determined by the following critical parameters:

• Connector Type & Configuration: Header with male pin contacts, unshrouded, cuttable design
• Position Count & Pitch: 38 positions at 0.100" (2.54mm) mating pitch
• Mounting Method: Through-hole, right-angle orientation
• Electrical Performance: 3A per contact current rating, solder termination
• Physical Dimensions: Insulation height 0.100" (2.54mm), contact length mating 0.240" (6.10mm), post length 0.118" (3.00mm)
• Material & Compliance: Brass contacts with tin finish, polyamide insulation, UL94 V-0 flammability rating, ROHS3 compliant

The substitute part 890-80-038-20-001101 from Preci-Dip meets these core substitution criteria with compatible electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The 890-80-038-20-001101 from Preci-Dip is a direct functional equivalent to the obsolete M20-9963846. Both connectors share identical position counts, pitch specifications, mounting configurations, and electrical ratings. The substitute part maintains ROHS3 compliance and UL94 V-0 flammability certification, ensuring regulatory alignment with the original component.

The Preci-Dip substitute offers an extended operating temperature range (-55°C to 125°C versus -40°C to 105°C), providing additional thermal margin for demanding applications. The contact length mating dimension differs by 0.004" (0.10mm), which falls within acceptable tolerance for standard board-to-board connector applications. The glass-filled polyamide insulation material in the substitute provides enhanced mechanical properties compared to the unfilled nylon 6T of the original part.

The substitute part is currently in active production status with confirmed inventory availability, eliminating supply chain risk associated with the obsolete original component.

Frequently Asked Questions (FAQ)

Q: Can the 890-80-038-20-001101 be used as a direct replacement for the M20-9963846?

A: Yes. Both connectors share identical 38-position configuration, 0.100" (2.54mm) pitch, through-hole right-angle mounting, male pin contacts, and 3A current rating. The 0.004" (0.10mm) difference in mating contact length is within acceptable tolerance for standard PCB applications.

Q: What is the significance of the product status difference?

A: The M20-9963846 is classified as obsolete, indicating Harwin has discontinued production and support. The 890-80-038-20-001101 maintains active production status, ensuring long-term availability and supply chain continuity for new designs and ongoing production requirements.

Q: How do the insulation materials differ between these connectors?

A: The original M20-9963846 uses unfilled polyamide (PA6T) nylon 6T, while the substitute 890-80-038-20-001101 uses glass-filled polyamide. Glass-filled insulation provides improved mechanical strength and dimensional stability, particularly beneficial in high-vibration or thermal cycling environments.

Q: Are both connectors RoHS compliant?

A: Yes. Both the M20-9963846 and 890-80-038-20-001101 are ROHS3 compliant with UL94 V-0 flammability ratings, meeting current regulatory requirements for electronic component applications.

Q: What is the operating temperature difference, and does it matter?

A: The substitute part operates from -55°C to 125°C compared to the original -40°C to 105°C range. This extended range provides additional thermal margin and is suitable for applications requiring broader temperature performance without design modification.

Q: Is the cuttable feature available on the substitute part?

A: The M20-9963846 is specified as cuttable, while the 890-80-038-20-001101 is listed as a standard header. Verify application requirements for cuttable functionality before selection.