172-050-142R011 D-Sub Connector Equivalent & Substitute Parts

Part Overview

The 172-050-142R011 is a 50-position D-Sub plug connector manufactured by NorComp Inc., designed for panel mount, through-hole applications with wire wrap termination. This connector features a 3-row layout in shell size 5 (DD, D) configuration with gold-flashed brass contacts and tin-plated steel shell. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations.

Substiute Parts

172-050-142R011

NorComp Inc.In Stock: 849172-050-142R011 Datasheet

Current PartRFQ

172-050-143R011

NorComp Inc.In Stock: 1108172-050-143R011 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 172-050-142R011 is determined by strict equivalence across the following critical parameters:

• Connector Configuration: Plug type with 50 positions in 3-row, shell size 5 (DD, D) layout
• Mounting and Termination: Panel mount, through-hole with wire wrap termination and board-side 4-40 flange
• Electrical Characteristics: 5A current rating, signal contact type, gold-flashed brass contacts
• Environmental Compliance: UL94 V-0 flammability rating, operating temperature range -50°C to 100°C, ROHS3 compliance

The substitute part 172-050-143R011 maintains all critical functional parameters while differing in shell material finish (nickel-plated versus tin-plated) and dielectric material composition. These differences do not affect connector interchangeability in standard applications.

Parameter Comparison

Engineering Selection Recommendations

The 172-050-143R011 serves as the direct active substitute for the obsolete 172-050-142R011. Both connectors maintain identical mechanical and electrical specifications across all critical parameters including position count, shell size, mounting configuration, current rating, and operating temperature range.

The substitute part offers the advantage of active product status with documented availability, ensuring long-term supply chain reliability. Both parts maintain ROHS3 compliance and UL94 V-0 flammability certification, meeting current regulatory requirements.

The difference in shell material finish (nickel-plated versus tin-plated) and dielectric material composition (PA6T nylon versus PBT polyester) does not affect functional interchangeability in standard signal applications. The substitute part's specified 500V voltage rating provides additional electrical margin where applicable.

Frequently Asked Questions (FAQ)

Q: Can the 172-050-143R011 directly replace the 172-050-142R011 in existing designs?

A: Yes. Both connectors share identical position count (50), row configuration (3), shell size (5 DD/D), mounting type (panel mount through-hole), termination method (wire wrap), and electrical ratings (5A, -50°C to 100°C). The connectors are mechanically and electrically interchangeable.

Q: What is the difference between tin-plated and nickel-plated shell finishes?

A: Shell finish affects corrosion resistance and environmental durability. Nickel plating provides enhanced corrosion resistance in harsh environments. Both finishes are suitable for standard indoor applications. Selection depends on specific environmental exposure requirements.

Q: Are there packaging differences between these parts?

A: The main part (172-050-142R011) packaging is not specified. The substitute (172-050-143R011) is supplied in tray packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Do both parts meet current compliance standards?

A: Yes. Both connectors are ROHS3 compliant and REACH unaffected. Both maintain UL94 V-0 flammability certification. The substitute part is currently active and maintains full compliance documentation.

Q: What is the significance of the dielectric material difference?

A: The main part uses PBT polyester dielectric; the substitute uses PA6T nylon. Both materials meet UL94 V-0 requirements and maintain equivalent electrical performance in signal applications. Material selection reflects manufacturing process differences without affecting connector function.