NorComp 982-025-020-121 D-Sub Backshell Connector: Equivalent & Substitute Parts

Part Overview

The NorComp 982-025-020-121 is a 25-position two-piece backshell connector designed for D-Sub applications with shielded construction and dual cable exit angles (90° and 180°). This component is classified as obsolete, which necessitates identification of active equivalent parts to maintain supply chain continuity and ensure long-term component availability for new designs and field replacements.

Substiute Parts

982-025-020-121

NorComp Inc.In Stock: 891982-025-020-121 Datasheet

Current PartRFQ

982-025-020R121

NorComp Inc.In Stock: 835982-025-020R121 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 982-025-020R121 qualifies as a direct equivalent based on the following critical parameters that determine substitutability:

• Number of Positions: Both parts specify 25 positions
• Accessory Type: Both are two-piece backshell connectors
• Compatible Shell Size: Both support Shell Size B
• Compatible D-Sub Size: Both support 25pos and HD44pos
• Cable Exit Angles: Both provide 90° and 180° cable exit options
• Shielding Configuration: Both are shielded
• Cable Type: Both accommodate round cables
• Material Composition: Both use plastic with metallized construction
• Plating Specification: Both feature nickel over copper plating
• Hardware: Both include assembly hardware and strain relief
• Mating Screws: Both use 4-40 mating screws
• Color: Both are silver

The primary distinction between these parts is product status and compliance certification, not functional or mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The 982-025-020R121 is the active production equivalent of the obsolete 982-025-020-121. Both parts are manufactured by NorComp Inc. and share identical electrical and mechanical specifications across all functional parameters.

The 982-025-020R121 offers the following advantages for new designs and ongoing procurement:

• Active Product Status: Currently in production with confirmed inventory availability (802 pcs)
• RoHS3 Compliance: Meets current environmental and regulatory requirements, whereas the original part is RoHS non-compliant
• Standardized Packaging: Supplied in bag packaging, facilitating integration into standard supply chain workflows

For applications where the original 982-025-020-121 is specified, direct substitution with 982-025-020R121 is supported without modification to connector interfaces, cable routing, or assembly procedures.

Frequently Asked Questions (FAQ)

Q: Can 982-025-020R121 be used as a direct replacement for 982-025-020-121?

A: Yes. Both parts are identical in all functional and mechanical parameters, including position count, cable exit angles, shielding, material composition, and hardware specifications. The substitute part is the active production version.

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

A: The primary differences are product status (obsolete vs. active), RoHS compliance certification (non-compliant vs. ROHS3 compliant), and packaging format. All connector specifications remain unchanged.

Q: Are there compatibility concerns when substituting 982-025-020R121 for 982-025-020-121?

A: No. Both parts support the same D-Sub sizes (25pos and HD44pos), shell size (B), cable types (round), and exit angles (90°, 180°). Physical and electrical compatibility is maintained.

Q: Does the packaging difference affect component performance?

A: No. Packaging format (bag vs. unspecified) does not affect connector performance, electrical characteristics, or mechanical function. It impacts only logistics and storage procedures.

Q: Is RoHS3 compliance relevant for my application?

A: RoHS3 compliance is required for products sold in the European Union and many other regulated markets. If your application or end-market requires RoHS compliance, 982-025-020R121 meets this requirement while 982-025-020-121 does not.