171-037-202-021 D-Sub Receptacle Connector Equivalent & Substitute Parts

Part Overview

The 171-037-202-021 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 171 series and is currently in stock with 751 units available. The part operates across a temperature range of -50°C to 100°C and is suitable for signal applications requiring solder cup termination.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when procurement from different inventory sources is needed while maintaining identical electrical and mechanical performance.

Substiute Parts

171-037-202-021

NorComp Inc.In Stock: 807171-037-202-021 Datasheet

Current PartRFQ

171-037-203L021

NorComp Inc.In Stock: 1033171-037-203L021 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 171-037-202-021 are identified based on strict equivalence across the following critical parameters:

• Connector type and gender (Receptacle, Female Sockets)
• Number of positions (37)
• Shell size and layout (4 / DC, C)
• Mounting configuration (Panel Mount)
• Termination method (Solder Cup)
• Shell material and finish (Steel, Nickel Plated)
• Contact finish specification (Gold, Flash thickness)
• Current rating (5A)
• Operating temperature range (-50°C to 100°C)
• Dielectric material composition (PBT, Glass Filled)
• Wire gauge range (20-28 AWG)
• Regulatory compliance (ROHS3 Compliant)

The substitute part 171-037-203L021 meets all these criteria and differs only in packaging format (Tray versus standard packaging) and inventory availability. Both parts share the same base product number (171-037) and are manufactured by NorComp Inc.

Parameter Comparison

Engineering Selection Recommendations

Both the 171-037-202-021 and 171-037-203L021 are active product status components manufactured by NorComp Inc. and maintain full ROHS3 compliance. The selection between these parts should be based on packaging requirements and inventory availability.

The 171-037-202-021 is suitable for applications where standard packaging is specified or preferred. The 171-037-203L021 offers an alternative with tray packaging and higher current inventory levels (930 units versus 751 units), making it advantageous for high-volume procurement scenarios or when tray packaging aligns with assembly line requirements.

Both parts are electrically and mechanically identical across all functional parameters, including current rating, temperature range, contact finish, and termination method. Selection between them does not impact circuit performance or connector reliability.

Frequently Asked Questions (FAQ)

Q: Are 171-037-202-021 and 171-037-203L021 electrically interchangeable?

A: Yes. Both connectors are electrically identical with the same 37-position configuration, 5A current rating, gold-plated contacts, and -50°C to 100°C operating range. They differ only in packaging format.

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

A: The primary difference is packaging. The 171-037-202-021 uses standard packaging, while the 171-037-203L021 uses tray packaging. Both are manufactured by NorComp Inc. and share the same base product number (171-037).

Q: Can I use 171-037-203L021 as a direct replacement for 171-037-202-021?

A: Yes, provided your assembly process accommodates tray packaging. The connector itself is mechanically and electrically identical.

Q: Are both parts RoHS compliant?

A: Yes. Both 171-037-202-021 and 171-037-203L021 are ROHS3 compliant.

Q: What wire gauges are compatible with these connectors?

A: Both connectors accept wire gauges from 20 to 28 AWG with solder cup termination.

Q: What is the operating temperature range for these connectors?

A: Both parts operate reliably from -50°C to 100°C.