979-037-030-121 D-Sub Backshell Connector Equivalent & Substitute Parts

Part Overview

The 979-037-030-121 is a 37-position two-piece backshell connector manufactured by NorComp Inc., designed for D-Sub applications with 180° cable exit and shielded configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning. The part operates within the D-Sub, D-Shaped Connectors category and serves as a critical interface component for shielded connector assemblies.

Substiute Parts

979-037-030-121

NorComp Inc.In Stock: 1124979-037-030-121 Datasheet

Current PartRFQ

979-037-030R121

NorComp Inc.In Stock: 2032979-037-030R121 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 979-037-030-121 is determined by strict equivalence across the following critical parameters:

• Number of Positions: 37 (exact match required)
• Compatible Shell Size: C (exact match required)
• Compatible D-Sub Size: 37pos and HD62pos (exact match required)
• Cable Exit Angle: 180° (exact match required)
• Shielding Configuration: Shielded (exact match required)
• Material Composition: Metal, Zinc Alloy (exact match required)
• Plating Type: Nickel (exact match required)
• Mating Hardware: Mating Screws 4-40 (exact match required)

The substitute part 979-037-030R121 meets all critical parameter requirements for direct functional equivalence. This part maintains identical electrical and mechanical specifications while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 979-037-030R121 is the direct functional equivalent for the obsolete 979-037-030-121. Selection of the substitute part is supported by:

Product Status: The substitute part maintains active product status, ensuring continued availability and manufacturer support compared to the obsolete main part.

Regulatory Compliance: The 979-037-030R121 achieves ROHS3 compliance, whereas the main part is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic component procurement.

Electrical and Mechanical Equivalence: All critical parameters—connector position count, shell size, cable exit angle, shielding configuration, material composition, plating specification, and mating hardware—are identical between the main part and substitute.

Certification Alignment: Both parts maintain identical REACH and ECCN classifications, ensuring no change in regulatory classification or export control status.

Frequently Asked Questions (FAQ)

Q: Can the 979-037-030R121 be used as a direct replacement for the 979-037-030-121?

A: Yes. The 979-037-030R121 meets all electrical and mechanical parameter requirements for direct functional equivalence. The parts are identical in connector position count, shell size, cable exit configuration, shielding, material composition, plating, and mating hardware specifications.

Q: What is the primary advantage of selecting the 979-037-030R121 over the main part?

A: The substitute part is active in production status and achieves ROHS3 compliance, whereas the main part is obsolete and RoHS non-compliant. This provides improved long-term availability and regulatory alignment.

Q: Are there any differences in packaging between these parts?

A: The main part packaging is not specified in available documentation. The substitute part is supplied in bulk packaging. Packaging differences do not affect functional compatibility or electrical performance.

Q: Do both parts support the same D-Sub connector sizes?

A: Yes. Both parts are compatible with 37pos and HD62pos D-Sub sizes and operate with Shell Size C configurations.

Q: Is the cable exit angle identical between both parts?

A: Yes. Both parts feature 180° cable exit configuration, ensuring identical installation geometry and cable routing characteristics.