172-E37-202-021 Equivalent & Substitute Parts

Part Overview

The 172-E37-202-021 is a 37 Position D-Sub Receptacle connector manufactured by NorComp Inc., designed for panel mount applications with female socket contacts. This connector is part of the 172-E series and features solder cup termination suitable for signal applications. The part is currently in stock with 1063 units available as new original inventory.

Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain compatibility across production batches and procurement cycles.

Substiute Parts

172-E37-202-021

NorComp Inc.In Stock: 1136172-E37-202-021 Datasheet

Current PartRFQ

172-E37-203R021

NorComp Inc.In Stock: 1411172-E37-203R021 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 172-E37-202-021 is determined by strict equivalence across the following critical parameters:

• Connector Type & Position Count: Receptacle configuration with 37 positions and 2-row layout
• Mounting Configuration: Panel mount with cable-side flange feature (4-40)
• Electrical Specifications: 5A current rating and signal contact type
• Termination Method: Solder cup termination
• Shell & Contact Materials: Steel shell with nickel plating and gold-plated contacts
• Environmental Compliance: Operating temperature range of -50°C to 100°C
• Series Compatibility: 172-E series designation

The substitute part 172-E37-203R021 meets all these criteria and is therefore classified as a direct equivalent within the 172-E product family.

Parameter Comparison

Engineering Selection Recommendations

Both the 172-E37-202-021 and 172-E37-203R021 are functionally equivalent D-Sub receptacle connectors within the 172-E series. The substitute part 172-E37-203R021 carries an Active product status designation and is certified ROHS3 Compliant, indicating current manufacturing support and environmental regulatory compliance. The substitute part is available in Tray packaging with 1343 units in stock, providing enhanced supply availability compared to the main part.

Selection between these parts should be based on packaging requirements, inventory availability, and compliance documentation needs for your specific application. Both parts maintain identical electrical and mechanical specifications for panel mount D-Sub receptacle applications.

Frequently Asked Questions (FAQ)

Q: Can 172-E37-203R021 be used as a direct replacement for 172-E37-202-021?

A: Yes. Both connectors share identical specifications for connector type, position count, mounting configuration, termination method, and electrical ratings. They are mechanically and electrically interchangeable.

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

A: The primary differences are packaging format (Tray for the substitute), product status designation (Active for the substitute), and documented compliance certifications (ROHS3 for the substitute). The electrical and mechanical performance characteristics are equivalent.

Q: Are there packaging considerations when switching between these parts?

A: Yes. The main part 172-E37-202-021 does not specify packaging format, while the substitute 172-E37-203R021 is supplied in Tray packaging. Verify that Tray packaging is compatible with your receiving and assembly processes.

Q: Does the contact finish thickness difference affect compatibility?

A: The substitute part specifies Flash gold plating thickness, while the main part does not specify this parameter. Both meet the same electrical contact requirements for 5A signal applications and are compatible for equivalent performance.

Q: What compliance certifications apply to these connectors?

A: The substitute part 172-E37-203R021 is ROHS3 Compliant and REACH Unaffected. Compliance documentation for the main part was not provided in the specification data.