Equivalent & Substitute Parts for NorComp 112-050-103L021

Part Overview

The NorComp 112-050-103L021 is a 50-position D-Sub SCSI plug connector with right-angle solder cup termination, designed for free-hanging inline applications. This connector features center strip contacts, gold-plated contact finish, and includes mounting hardware. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and legacy equipment support.

Substiute Parts

112-050-103L021

NorComp Inc.In Stock: 831112-050-103L021 Datasheet

Current PartRFQ

5-555012-2

TE Connectivity AMP ConnectorsIn Stock: 12155-555012-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NorComp 112-050-103L021 is determined by the following critical parameters:

• Connector Type & Position Count: Must be a 50-position plug connector to maintain electrical interface compatibility
• Physical Configuration: Must support free-hanging inline mounting with right-angle orientation
• Contact Arrangement: Must maintain 2-row center strip contact configuration
• Contact Finish: Must feature gold plating for corrosion resistance and signal integrity
• Compliance Standards: Must meet ROHS3 compliance requirements

The TE Connectivity AMP Connectors 5-555012-2 satisfies these core substitution criteria. While the termination method differs (IDC versus solder cup), both connectors maintain identical electrical and mechanical interface specifications for the 50-position D-Sub SCSI standard, enabling functional equivalence in applications where termination method flexibility exists.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity 5-555012-2 serves as a functional equivalent for the obsolete NorComp 112-050-103L021 based on the following engineering criteria:

Electrical & Mechanical Compatibility: Both connectors maintain identical 50-position, 2-row D-Sub SCSI interface specifications with center strip contact configuration and gold contact finish, ensuring pin-to-pin electrical compatibility.

Compliance & Regulatory Status: Both parts meet ROHS3 compliance and share identical ECCN (EAR99) and HTSUS classifications, satisfying regulatory requirements for equivalent component substitution.

Product Availability: The TE Connectivity part maintains active product status with 1,125 units in stock, providing reliable supply continuity for legacy system support and repair applications where the NorComp part is no longer available.

Termination Consideration: The primary difference is termination method (IDC versus solder cup). Selection between these alternatives depends on the specific application's wiring and assembly requirements. IDC termination offers simplified assembly procedures, while solder cup termination may be required for applications with existing solder-based interconnect infrastructure.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 5-555012-2 directly replace the NorComp 112-050-103L021 in existing systems?

A: Yes, from an electrical and mechanical interface perspective. Both connectors maintain identical 50-position D-Sub SCSI specifications with matching pin configurations, mounting orientation, and contact finish. The primary consideration is termination method compatibility with your existing wiring and assembly process.

Q: What is the difference between solder cup and IDC termination?

A: Solder cup termination requires wire leads to be soldered into the connector cup contacts. IDC (Insulation Displacement Contact) termination uses a mechanical crimping process where wire insulation is displaced to create electrical contact. Both methods achieve equivalent electrical performance when properly executed.

Q: Are both connectors RoHS compliant?

A: Yes. Both the NorComp 112-050-103L021 and TE Connectivity 5-555012-2 are ROHS3 compliant, meeting current environmental and hazardous substance restrictions.

Q: What packaging options are available for the substitute part?

A: The TE Connectivity 5-555012-2 is supplied in bulk packaging. Confirm packaging requirements with your procurement process to ensure compatibility with your assembly and inventory management procedures.

Q: Are there any differences in contact finish specifications?

A: Both connectors feature gold contact finish. The NorComp part specifies flash thickness, while the TE Connectivity part specifies 30.0µin (0.76µm) thickness. Both finishes provide equivalent corrosion resistance and signal integrity for SCSI applications.