172-037-112-021 D-Sub Plug 37 Position Connector Equivalent & Substitute Parts

Part Overview

The NorComp Inc. 172-037-112-021 is a 37 Position D-Sub Plug connector with male pins, designed for panel mount solder termination applications. This connector is classified as Active and maintains full inventory availability with 1,016 pieces in stock. D-Sub connectors of this configuration are widely used in industrial control systems, data acquisition equipment, and legacy computing interfaces where reliable multi-pin signal distribution is required. Substitute parts are identified based on matching electrical characteristics, mechanical compatibility, and termination methods.

Key Parameters

Parameter	172-037-112-021
Manufacturer	NorComp Inc.
Connector Style	D-Sub
Connector Type	Plug, Male Pins
Number of Positions	37
Number of Rows	2
Shell Size, Connector Layout	4 (DC, C)
Mounting Type	Panel Mount
Termination	Solder
Contact Type	Signal
Series	172

Substitute Part Grouping Explanation

Substitute parts for the 172-037-112-021 are qualified based on the following critical parameters that must align with the original specification:

Connector Style & Type: All substitutes must be D-Sub Plug connectors with male pins
Position Count & Row Configuration: 37 positions arranged in 2 rows (Shell Size 4, DC/C layout)
Termination Method: Solder termination only
Mounting Compatibility: Through hole or panel mount configurations
Contact Type: Signal contacts

The substitute parts identified from the provided data are manufactured by HARTING and Hirose Electric Co Ltd. These manufacturers produce D-Sub connectors that share the core electrical and mechanical specifications of the 172-037-112-021, with variations in contact finish, flange features, and contact form that do not affect functional interchangeability in standard applications.

Parameter Comparison

Parameter	172-037-112-021 (NorComp)	09654296702 (HARTING)	09654616711 (HARTING)	09664216701 (HARTING)	09664216703 (HARTING)	SDCB-37P(55) (Hirose)
Connector Style	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	37	37	37	37	37	37
Number of Rows	2	2	2	2	2	2
Shell Size, Connector Layout	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)	4 (DC, C)
Mounting Type	Panel Mount	Through Hole	Through Hole	Through Hole	Through Hole	Panel Mount, Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Contact Type	Signal	Signal	Signal	Signal	Signal	Signal
Material Flammability Rating	-	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature	-	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-
RoHS Status	-	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	-	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and comply with RoHS regulations. The HARTING parts (09654296702, 09654616711, 09664216701, 09664216703) are rated for UL94 V-0 flammability and operate across the -55°C to 125°C temperature range, providing enhanced environmental specifications compared to the original part. The Hirose SDCB-37P(55) offers dual mounting capability (panel mount and through hole) with gold-plated contacts and nickel-plated shell finish, suitable for applications requiring enhanced corrosion resistance.

Selection between substitutes depends on specific application requirements: HARTING parts are optimal for high-temperature industrial environments, while the Hirose part provides superior contact durability through machined contact forms and precious metal plating. All substitutes maintain electrical compatibility through identical position count, shell size, and signal contact configuration.

Frequently Asked Questions (FAQ)

Q: Can the 172-037-112-021 be directly replaced with HARTING 09654296702?

A: Yes. Both connectors share identical 37-position D-Sub configuration, male pin type, shell size 4 layout, and solder termination. The primary difference is mounting type: the original is panel mount while the HARTING part is through hole. Mechanical fit must be verified for your specific PCB layout.

Q: What is the difference between HARTING 09654616711 and 09664216701?

A: Both are 37-position D-Sub plugs with solder termination and identical shell configuration. Key differences include: 09654616711 features stamped contacts with 6.5A current rating and board lock feature; 09664216701 features machined contacts with 7.5A current rating. Machined contacts provide superior durability in high-cycle mating applications.

Q: Is the Hirose SDCB-37P(55) compatible with the original 172-037-112-021?

A: Yes, for electrical and mechanical compatibility. The Hirose part offers panel mount capability matching the original, plus additional through hole mounting option. Contact finish differs (gold plating vs. unspecified original), and current rating is lower at 3A. Verify current requirements for your application.

Q: What does "Shell Size 4 (DC, C)" mean?

A: This designates the D-Sub connector shell size and pin layout standard. Size 4 accommodates 37 positions in a 2-row configuration. All substitute parts maintain this specification, ensuring mechanical and electrical pin compatibility.

Q: Are all substitute parts RoHS compliant?

A: Yes. All HARTING substitutes are ROHS3 compliant, and the Hirose part is RoHS compliant. The original 172-037-112-021 RoHS status is not specified in the provided data.

Q: Which substitute offers the best performance for high-temperature applications?

A: HARTING parts 09654296702, 09654616711, 09664216701, and 09664216703 are rated for -55°C to 125°C operation with UL94 V-0 flammability rating, making them suitable for demanding industrial environments. Operating temperature for the Hirose part is not specified.

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