NorComp 973-009-020-121 D-Sub Backshell Connector: Equivalent & Substitute Parts

Part Overview

The NorComp 973-009-020-121 is a 9-position two-piece backshell connector with 180° cable exit and shielding, designed for D-Sub and HD15 position applications. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new procurement requirements.

Substiute Parts

973-009-020-121

NorComp Inc.In Stock: 761973-009-020-121 Datasheet

Current PartRFQ

973-009-020R121

NorComp Inc.In Stock: 3803973-009-020R121 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 973-009-020-121 is determined by strict equivalence across the following critical parameters:

• Number of Positions: 9
• Compatible Shell Size: E
• Compatible D-Sub Size: 9pos and HD15pos
• Cable Exit Angle: 180°
• Shielding Configuration: Shielded
• Accessory Type: Two Piece Backshell
• Cable Type: Round
• Plating Specification: Nickel over Copper
• Mating Hardware: 4-40 Screws

The substitute part 973-009-020R121 maintains identical specifications across all critical parameters, with the primary distinction being active product status and RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The 973-009-020R121 is the direct active equivalent for the obsolete 973-009-020-121. Selection of the substitute part is supported by:

• Identical electrical and mechanical specifications across all functional parameters
• Active product status ensuring ongoing availability and supply chain continuity
• ROHS3 compliance, meeting current regulatory requirements for new designs and procurement
• Equivalent plating, material composition, and hardware specifications
• Same series designation (973) and base product number (973-009), confirming manufacturer lineage

For applications requiring the 973-009-020-121, the 973-009-020R121 provides direct functional replacement without design modification.

Frequently Asked Questions (FAQ)

Q: Can the 973-009-020R121 be used as a direct replacement for the 973-009-020-121?

A: Yes. Both parts share identical specifications for number of positions, shell size, cable exit angle, shielding configuration, plating, and hardware. The substitute part is the active equivalent.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and regulatory compliance. The 973-009-020-121 is obsolete and RoHS non-compliant, while the 973-009-020R121 is active and ROHS3 compliant. Functional specifications are identical.

Q: Are there packaging differences between these parts?

A: The 973-009-020R121 is supplied in bulk packaging. The original part packaging specification is not provided in the technical data.

Q: Does the RoHS3 compliance of the substitute part affect compatibility?

A: No. ROHS3 compliance indicates adherence to current environmental and material restrictions. This does not alter electrical or mechanical compatibility with existing connector systems.

Q: Can I use the 973-009-020R121 in legacy systems designed for the 973-009-020-121?

A: Yes. Identical specifications across all functional parameters ensure compatibility in legacy applications.