172-E25-202-021 Equivalent & Substitute Parts

Part Overview

The 172-E25-202-021 is a 25 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 provides reliable signal connectivity in D-Sub configurations. The part is currently in stock with 791 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-E25-202-021

NorComp Inc.In Stock: 868172-E25-202-021 Datasheet

Current PartRFQ

172-E25-203R021

NorComp Inc.In Stock: 1762172-E25-203R021 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 172-E25-203R021 is classified as a direct equivalent based on the following critical parameters that determine substitutability:

• Connector Type & Configuration: Both parts are 25 Position D-Sub Receptacles with female socket contacts
• Mounting Interface: Both feature panel mount configuration
• Shell Size & Layout: Both use Shell Size 3 (DB, B) standard D-Sub geometry
• Termination Method: Both employ solder cup termination for PCB attachment
• Series Compatibility: Both belong to the NorComp 172-E series family
• Electrical Ratings: Both support 5A current rating and operate across -50°C to 100°C temperature range
• Contact & Material Specifications: Both use machined brass contacts with gold finish (flash thickness) and steel nickel-plated shells

The primary distinction is packaging format: 172-E25-202-021 is supplied in standard packaging, while 172-E25-203R021 is supplied in tray packaging. This difference does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both 172-E25-202-021 and 172-E25-203R021 are fully qualified substitutes for applications requiring 25-position D-Sub receptacle connectors with panel mount configuration and solder cup termination.

Compliance & Certification: Both parts meet ROHS3 compliance and REACH unaffected status, suitable for regulated industries and environmental standards. Both achieve UL94 V-0 flammability rating, appropriate for applications requiring flame resistance.

Product Status: 172-E25-203R021 carries Active product status designation, indicating ongoing manufacturer support and availability. Both parts maintain current production status within the NorComp 172-E series.

Supply Considerations: 172-E25-203R021 offers higher inventory availability (1668 units) compared to 172-E25-202-021 (791 units), providing improved supply chain flexibility for high-volume procurement.

Packaging Impact: Selection between these parts should consider downstream assembly requirements. Tray packaging (172-E25-203R021) is optimized for automated pick-and-place operations, while standard packaging (172-E25-202-021) accommodates manual assembly workflows.

Frequently Asked Questions (FAQ)

Q: Are 172-E25-202-021 and 172-E25-203R021 electrically identical?

A: Yes. Both connectors share identical electrical specifications including 5A current rating, operating temperature range of -50°C to 100°C, contact material composition (brass with gold flash finish), and dielectric properties (PBT material).

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

A: The primary difference is packaging format. 172-E25-203R021 is supplied in tray packaging, while 172-E25-202-021 uses standard packaging. This distinction does not affect connector performance or mechanical compatibility.

Q: Can I use 172-E25-203R021 as a direct replacement for 172-E25-202-021 in existing designs?

A: Yes. Both connectors are mechanically and electrically interchangeable. They share identical shell size (3/DB/B), mounting configuration (panel mount), contact arrangement (25 positions, 2 rows), and termination method (solder cup).

Q: Do both parts meet the same compliance standards?

A: Yes. Both 172-E25-202-021 and 172-E25-203R021 are ROHS3 compliant, REACH unaffected, and achieve UL94 V-0 flammability rating.

Q: Which part should I select for high-volume production?

A: 172-E25-203R021 is recommended for high-volume production due to higher inventory availability (1668 units) and tray packaging compatibility with automated assembly equipment.

Q: Are there any temperature or environmental limitations I should consider?

A: Both connectors operate across -50°C to 100°C. No additional environmental limitations are specified beyond standard D-Sub connector operating parameters.