NorComp 970-025-030-121 D-Sub Backshell Connector: Equivalent & Substitute Parts

Part Overview

The NorComp 970-025-030-121 is a 25-position two-piece backshell connector with 180° cable exit, designed for D-Sub applications requiring shielded configurations. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new procurement requirements. The substitute part maintains identical electrical and mechanical specifications while offering current product status and improved compliance certifications.

Substiute Parts

970-025-030-121

NorComp Inc.In Stock: 742970-025-030-121 Datasheet

Current PartRFQ

970-025-030R121

NorComp Inc.In Stock: 994970-025-030R121 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The NorComp 970-025-030R121 qualifies as a direct substitute based on matching critical parameters that define functional compatibility:

• Position Count & Shell Size: Both parts feature 25 positions with compatible Shell Size B, ensuring mechanical fit with existing D-Sub connectors
• Cable Exit Angle: Identical 180° cable exit configuration maintains installation geometry
• Shielding & Material Composition: Both employ shielded metal construction with zinc material and nickel-over-copper plating, preserving electromagnetic performance
• Hardware Specification: Matching 4-40 mating screws ensure assembly compatibility
• Connector Compatibility: Both support 25pos and HD44pos D-Sub sizes

The primary distinction is product status: the original part is obsolete, while the substitute is active production with enhanced compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The 970-025-030R121 is the appropriate selection for new designs and ongoing procurement. This part maintains full electrical and mechanical compatibility with the obsolete 970-025-030-121 while offering active product status and ROHS3 compliance certification. The substitute part carries identical export classification (EAR99) and tariff coding, simplifying regulatory documentation.

For legacy systems currently using the 970-025-030-121, the substitute provides direct replacement capability without design modification. The MSL rating of 1 (Unlimited) on the active part indicates superior moisture handling characteristics compared to the original specification.

Frequently Asked Questions (FAQ)

Q: Can the 970-025-030R121 replace the 970-025-030-121 in existing assemblies?

A: Yes. Both parts share identical position count (25), shell size (B), cable exit angle (180°), shielding configuration, material composition, plating specification, and mating hardware (4-40 screws). No design changes are required.

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

A: The original part is classified as obsolete, indicating discontinued production and limited availability. The substitute is active production, ensuring reliable long-term supply and support.

Q: Does the ROHS3 compliance of the substitute affect compatibility?

A: No. ROHS3 compliance represents an improvement in environmental and regulatory standing. The substitute maintains identical material composition and electrical characteristics while meeting current compliance standards.

Q: Are there packaging differences between these parts?

A: The original part packaging is unspecified in available documentation. The substitute is supplied in bulk packaging. Verify packaging requirements for your procurement process.

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

A: Yes. Both the 970-025-030-121 and 970-025-030R121 are compatible with 25pos and HD44pos D-Sub connectors with Shell Size B.