NorComp 981-009-030-121 D-Sub Backshell Connector: Equivalent & Substitute Parts

Part Overview

The NorComp 981-009-030-121 is a 9-position two-piece D-Sub backshell connector with 90° cable exit, designed for shielded applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

The backshell serves as a protective enclosure for D-Sub connector terminations, providing mechanical strain relief and electromagnetic shielding for 9-position and HD15-position D-Sub connectors. Obsolescence necessitates sourcing of active-status alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

981-009-030-121

NorComp Inc.In Stock: 950981-009-030-121 Datasheet

Current PartRFQ

981-009-030R121

NorComp Inc.In Stock: 3873981-009-030R121 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 981-009-030-121 is determined by strict equivalence across the following parameters:

• Number of Positions: 9
• Compatible Shell Size: E
• Compatible D-Sub Size: 9pos and HD15pos
• Cable Exit Angle: 90°
• Shielding: Shielded
• Material: Metal, Zinc Alloy
• Plating: Nickel over Copper
• Color: Silver

The substitute part 981-009-030R121 maintains identical specifications across all these parameters, ensuring direct mechanical and electrical compatibility. The primary distinction is product status transition from obsolete to active, accompanied by improved regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 981-009-030R121 is the direct active-status equivalent of the obsolete 981-009-030-121. Selection of the substitute part is based on:

• Identical mechanical compatibility with 9-position and HD15-position D-Sub connectors
• Identical electrical specifications for shielded applications
• Active product status ensuring ongoing availability and supply chain continuity
• ROHS3 compliance, addressing regulatory requirements for new designs and procurement cycles
• Improved moisture sensitivity rating (MSL 1) providing enhanced environmental stability

No functional or dimensional differences exist between the main part and substitute. The 981-009-030R121 is suitable for direct replacement in all applications where the 981-009-030-121 was previously specified.

Frequently Asked Questions (FAQ)

Q: Can the 981-009-030R121 be used as a direct replacement for the 981-009-030-121?

A: Yes. Both parts are identical in mechanical dimensions, electrical specifications, and functional performance. The substitute part differs only in product status (active vs. obsolete) and regulatory compliance (ROHS3 vs. non-compliant).

Q: What is the significance of the product status change from obsolete to active?

A: Active status indicates the part is currently manufactured and supported by NorComp Inc., ensuring reliable supply chain access and consistent quality. Obsolete status indicates the part is no longer in production, making the active substitute necessary for ongoing procurement.

Q: Are there packaging differences between these parts?

A: The main part packaging is not specified in available documentation. The substitute part is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

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

A: No. ROHS3 compliance is a regulatory attribute that does not alter mechanical or electrical compatibility. The substitute part maintains all functional equivalence with the original part while meeting current environmental standards.

Q: Are both parts compatible with 9-position and HD15-position D-Sub connectors?

A: Yes. Both the 981-009-030-121 and 981-009-030R121 are compatible with shell size E and support both 9-position and HD15-position D-Sub connector configurations.