172-E50-112-021 D-Sub Connector Equivalent & Substitute Parts

Part Overview

The 172-E50-112-021 is a 50-position D-Sub plug connector manufactured by NorComp Inc., designed for panel mount applications with solder termination. This connector is part of the 172-E series and features male pins in a 3-row configuration with a DD/D shell size. The part is currently in active production with 1330 units available in stock as new original inventory.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector's critical specifications, including position count, shell size, mounting type, termination method, and contact configuration.

Key Parameters

Parameter	Value
Connector Type	Plug, Male Pins
Number of Positions	50
Number of Rows	3
Shell Size	5 (DD, D)
Mounting Type	Panel Mount, Through Hole
Termination	Solder
Shell Material & Finish	Steel, Nickel Plated
Contact Finish	Gold
Current Rating	5A
Operating Temperature Range	-50°C ~ 100°C

Substitute Part Grouping Explanation

Substitute parts for the 172-E50-112-021 are classified based on strict equivalence in the following critical parameters:

Connector Configuration: 50-position, 3-row D-Sub plug with male pins
Shell Specification: Size 5 (DD, D) shell with nickel-plated steel material
Mounting & Termination: Panel mount through-hole with solder termination
Contact System: Gold-finished brass contacts rated for 5A
Environmental Compliance: Operating temperature range -50°C to 100°C

Parts meeting all these criteria are classified as direct substitutes. Parts within the same manufacturer series (172-E or 172) that maintain these specifications are functionally equivalent for component selection purposes.

Parameter Comparison

Parameter	172-E50-112-021	172-E50-113R021	172-050-112-021
Manufacturer	NorComp Inc.	NorComp Inc.	NorComp Inc.
Category	D-Sub, D-Shaped Connectors	D-Sub, D-Shaped Connectors	D-Sub, D-Shaped Connectors
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	50	50	50
Number of Rows	3	3	3
Shell Size	5 (DD, D)	5 (DD, D)	5 (DD, D)
Mounting Type	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole
Termination	Solder	Solder	Solder
Shell Material & Finish	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated
Contact Finish	Gold	Gold	Gold
Current Rating	5A	5A	5A
Operating Temperature	-50°C ~ 100°C	-50°C ~ 100°C	-50°C ~ 100°C
Series	172-E	172-E, M Series	172
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Not Specified
Inventory (Pcs)	1330	875	1037

Engineering Selection Recommendations

All three parts—172-E50-112-021, 172-E50-113R021, and 172-050-112-021—are electrically and mechanically equivalent for applications requiring a 50-position D-Sub plug connector with panel mount solder termination.

172-E50-113R021 is the primary direct substitute, maintaining identical electrical specifications and operating parameters. This part is packaged in trays and carries active product status with ROHS3 compliance certification.

172-050-112-021 is a similar substitute within the broader 172 series, meeting all functional requirements. Product status and compliance information for this part should be confirmed for applications with specific regulatory requirements.

Selection between these parts should be based on packaging requirements (tray vs. bulk), inventory availability, and any application-specific compliance mandates. All parts are manufactured by NorComp Inc. and maintain the same contact configuration, shell specifications, and environmental operating range.

Frequently Asked Questions (FAQ)

Q: Can 172-E50-113R021 be used as a direct replacement for 172-E50-112-021?

A: Yes. Both parts maintain identical electrical and mechanical specifications: 50-position plug configuration, 3-row layout, size 5 shell, panel mount through-hole mounting, solder termination, 5A current rating, and -50°C to 100°C operating temperature range.

Q: What is the difference between 172-E50-113R021 and 172-050-112-021?

A: Both parts are functionally equivalent in electrical and mechanical parameters. The primary difference is series designation (172-E vs. 172) and packaging format. 172-E50-113R021 is supplied in trays; 172-E50-112-021 and 172-050-112-021 packaging specifications should be confirmed with the supplier.

Q: Are there packaging differences between these substitutes?

A: Yes. 172-E50-113R021 is specified as tray-packaged. Packaging for 172-E50-112-021 and 172-050-112-021 is not specified in the available data and should be verified before procurement.

Q: Do all three parts meet RoHS compliance?

A: 172-E50-113R021 is confirmed ROHS3 compliant. RoHS status for 172-E50-112-021 and 172-050-112-021 should be confirmed with the manufacturer for applications requiring RoHS certification.

Q: What determines substitutability for this connector type?

A: Substitutability is determined by equivalence in position count (50), row configuration (3), shell size (5/DD/D), mounting method (panel mount through-hole), termination type (solder), contact material and finish (gold-plated brass), current rating (5A), and operating temperature range (-50°C to 100°C).

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