NorComp 971-025-020-121 D-Sub Backshell Connector: Equivalent & Substitute Parts

Part Overview

The NorComp 971-025-020-121 is a 25-position two-piece backshell connector with 45° cable exit and shielding, designed for D-Sub applications. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new procurement requirements. The connector features silver plating, nickel over copper finish, and is compatible with both 25-position and HD44-position D-Sub sizes using shell size B.

Substiute Parts

971-025-020-121

NorComp Inc.In Stock: 1080971-025-020-121 Datasheet

Current PartRFQ

971-025-020R121

NorComp Inc.In Stock: 1081971-025-020R121 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The NorComp 971-025-020R121 qualifies as a direct substitute based on the following critical parameters:

• Number of Positions: 25 (identical)
• Compatible Shell Size: B (identical)
• Compatible D-Sub Size: 25pos and HD44pos (identical)
• Cable Exit Angle: 45° (identical)
• Shielding: Shielded (identical)
• Cable Type: Round (identical)
• Plating: Nickel over Copper (identical)
• Color: Silver (identical)
• Hardware Configuration: Assembly Hardware, Grommets; Mating Screws 4-40 (identical)
• Accessory Type: Two Piece Backshell (identical)

The substitute part maintains full electrical and mechanical compatibility with the original specification while offering improved product status and compliance posture.

Parameter Comparison

Engineering Selection Recommendations

The 971-025-020R121 is the appropriate selection for new designs and ongoing procurement. This part maintains complete mechanical and electrical compatibility with the original 971-025-020-121 while offering the following advantages:

• Active Product Status: The substitute is currently in active production, ensuring long-term availability and supply chain stability.
• Regulatory Compliance: The substitute achieves ROHS3 compliance, whereas the original is non-compliant. This distinction is critical for applications subject to environmental regulations.
• Inventory Availability: The substitute maintains adequate stock levels (1027 pcs) for immediate procurement.

Both parts share identical electrical and mechanical specifications, including connector geometry, shielding configuration, plating composition, and hardware assembly requirements. Selection between these parts should be driven by product lifecycle requirements and regulatory compliance mandates rather than technical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can the 971-025-020R121 be used as a direct replacement for the 971-025-020-121?

A: Yes. Both parts are identical in all electrical and mechanical parameters, including position count, shell size compatibility, cable exit angle, shielding, plating, and hardware configuration. The substitute is a direct functional equivalent.

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

A: The original part is obsolete and RoHS non-compliant. The substitute is an active product that meets ROHS3 compliance requirements. All technical specifications remain unchanged.

Q: Are there packaging differences between the original and substitute?

A: The original part packaging is not specified in the technical data. The substitute is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Is the 971-025-020R121 compatible with existing D-Sub connector assemblies designed for the 971-025-020-121?

A: Yes. Both parts are compatible with 25-position and HD44-position D-Sub connectors using shell size B. No design modifications are required.

Q: What compliance certifications apply to the substitute part?

A: The 971-025-020R121 is ROHS3 compliant and REACH unaffected. Both parts carry identical ECCN (EAR99) and HTSUS (8538.90.8180) classifications.