NorComp 994-025-030-121 D-Sub Backshell Connector: Equivalent & Substitute Parts

Part Overview

The NorComp 994-025-030-121 is a 25-position two-piece backshell connector with 180° 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 substitute part maintains identical electrical and mechanical specifications while offering current product status and improved compliance certifications.

Substiute Parts

994-025-030-121

NorComp Inc.In Stock: 1125994-025-030-121 Datasheet

Current PartRFQ

994-025-030R121

NorComp Inc.In Stock: 796994-025-030R121 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The NorComp 994-025-030R121 qualifies as a direct substitute for the 994-025-030-121 based on the following critical parameters:

• Number of Positions: Both parts are 25-position connectors
• Accessory Type: Both are two-piece backshell designs
• Compatible Shell Size: Both support Shell Size B
• Compatible D-Sub Size: Both support 25pos and HD44pos configurations
• Cable Exit Angle: Both feature 180° cable exit
• Cable Type: Both accommodate round cable
• Shielding: Both provide shielded configurations
• Material Composition: Both use Metal, Zinc Alloy construction
• Plating Specification: Both feature Nickel over Copper plating
• Color: Both are Silver

The substitute part is manufactured by the same supplier (NorComp Inc.) and maintains full electrical and mechanical compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The NorComp 994-025-030R121 is the appropriate selection for applications currently using the 994-025-030-121. The substitute part maintains complete electrical and mechanical compatibility across all specified parameters. The transition from the obsolete 994-025-030-121 to the active 994-025-030R121 provides the additional benefit of ROHS3 compliance, addressing regulatory requirements for new designs and procurement cycles. Both parts are manufactured by NorComp Inc. and share identical REACH and ECCN classifications (REACH Unaffected, EAR99).

Frequently Asked Questions (FAQ)

Q: Are the 994-025-030-121 and 994-025-030R121 mechanically interchangeable?

A: Yes. Both parts are 25-position two-piece backshells with identical shell size (B), cable exit angle (180°), and material specifications (Metal, Zinc Alloy with Nickel over Copper plating). They are fully interchangeable in applications designed for either part number.

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

A: The primary differences are product status and compliance certification. The 994-025-030-121 is obsolete and RoHS non-compliant, while the 994-025-030R121 is active and ROHS3 compliant. All electrical and mechanical parameters are identical.

Q: Can the 994-025-030R121 be used as a direct replacement in existing assemblies?

A: Yes. The substitute part maintains full compatibility with 25-position and HD44-position D-Sub connectors and supports the same round cable configurations with 180° exit angles.

Q: Are there packaging differences between these parts?

A: The 994-025-030-121 packaging is not specified in the documentation. The 994-025-030R121 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: What compliance certifications apply to both parts?

A: Both parts share identical REACH (REACH Unaffected) and ECCN (EAR99) classifications. The 994-025-030R121 provides the additional benefit of ROHS3 compliance, while the 994-025-030-121 is RoHS non-compliant.