978-015-020-121 D-Sub Backshell Connector Equivalent & Substitute Parts

Part Overview

The 978-015-020-121 is a 15-position two-piece backshell connector manufactured by NorComp Inc., designed for D-Sub applications with 180° cable exit and shielded configuration. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and procurement planning. The part features nickel-plated copper contacts over plastic construction with integrated strain relief and assembly hardware.

Substiute Parts

978-015-020-121
NorComp Inc.In Stock: 1021978-015-020-121 Datasheet
978-015-020-121
Current Part
978-015-020R121
NorComp Inc.In Stock: 741978-015-020R121 Datasheet
978-015-020R121
Direct

Key Parameters

Parameter Value
Manufacturer Part Number 978-015-020-121
Manufacturer NorComp Inc.
Category D-Sub, D-Shaped Connectors
Accessory Type Two Piece Backshell
Number of Positions 15
Compatible Shell Size A
Compatible D-Sub Size 15pos and HD26pos
Cable Exit 180°
Shielding Shielded
Plating Nickel over Copper
Hardware Assembly Hardware, Strain Relief
Mating Screws 4-40
Color Silver
Product Status Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the 978-015-020-121 is determined by strict equivalence across the following critical parameters:

  • Accessory Type: Two Piece Backshell (exact match required)
  • Number of Positions: 15 (exact match required)
  • Compatible Shell Size: A (exact match required)
  • Compatible D-Sub Size: 15pos and HD26pos (exact match required)
  • Cable Exit Angle: 180° (exact match required)
  • Shielding Configuration: Shielded (exact match required)
  • Plating Specification: Nickel over Copper (exact match required)
  • Hardware Configuration: Assembly Hardware, Strain Relief with 4-40 Mating Screws (exact match required)
  • Color: Silver (exact match required)

The substitute part 978-015-020R121 meets all electrical and mechanical equivalence criteria and represents the active production alternative from the same manufacturer series.

Parameter Comparison

Parameter 978-015-020-121 (Main Part) 978-015-020R121 (Substitute)
Manufacturer NorComp Inc. NorComp Inc.
Category D-Sub, D-Shaped Connectors D-Sub, D-Shaped Connectors
Description CONN BACKSHELL 15POS 180DEG SHLD CONN BACKSHELL 15POS 180DEG SHLD
Accessory Type Two Piece Backshell Two Piece Backshell
Number of Positions 15 15
Compatible Shell Size A A
Compatible D-Sub Size 15pos and HD26pos 15pos and HD26pos
Cable Type Round Round
Cable Exit 180° 180°
Shielding Shielded Shielded
Primary Material Plastic Plastic
Material Plastic, Metallized Plastic, Metallized
Plating Nickel over Copper Nickel over Copper
Hardware Assembly Hardware, Strain Relief Assembly Hardware, Strain Relief
Mating Screws 4-40 4-40
Color Silver Silver
Product Status Obsolete Active
RoHS Status RoHS non-compliant ROHS3 Compliant
REACH Status REACH Unaffected REACH Unaffected
ECCN EAR99 EAR99
HTSUS 8538.90.8180 8538.90.8180

Engineering Selection Recommendations

The 978-015-020R121 is the direct functional equivalent for the obsolete 978-015-020-121. Both parts are manufactured by NorComp Inc. within the same 978 series and maintain identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product status and regulatory compliance. The 978-015-020-121 is obsolete and RoHS non-compliant, while the 978-015-020R121 is an active production part with ROHS3 compliance. For new designs or systems requiring regulatory compliance with modern environmental standards, the 978-015-020R121 is the appropriate selection. Both parts share identical REACH and ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can 978-015-020R121 be used as a direct replacement for 978-015-020-121?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters, including connector position count, shell size compatibility, cable exit angle, shielding configuration, plating, and hardware specifications.

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

A: The primary differences are product status and RoHS compliance. The 978-015-020-121 is obsolete and RoHS non-compliant, while 978-015-020R121 is an active production part with ROHS3 compliance. All functional specifications remain identical.

Q: Are there packaging differences between these parts?

A: The 978-015-020-121 packaging specification is not provided. The 978-015-020R121 is supplied in bulk packaging.

Q: Do these parts have the same regulatory classifications?

A: Yes. Both parts share identical REACH status (REACH Unaffected) and ECCN classification (EAR99), with matching HTSUS codes (8538.90.8180).

Q: Is the 978-015-020R121 suitable for applications requiring RoHS compliance?

A: Yes. The 978-015-020R121 carries ROHS3 compliance certification, making it suitable for applications with RoHS requirements.

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