NorComp 172-025-182-021 D-Sub Connector: Equivalent & Substitute Parts

Part Overview

The NorComp 172-025-182-021 is a 25-position D-Sub plug connector with male pins, designed for panel mount, through-hole solder termination applications. This connector is part of the NorComp 172 series and is currently in active production with 1,171 pieces in stock. D-Sub connectors of this configuration are widely used in industrial control, telecommunications, and legacy computing equipment where standardized 25-pin signal distribution is required. Substitute parts are identified based on matching electrical and mechanical parameters that ensure functional compatibility in the target application.

Key Parameters

Parameter	Value
Connector Style	D-Sub
Connector Type	Plug, Male Pins
Number of Positions	25
Number of Rows	2
Shell Size, Connector Layout	3 (DB, B)
Mounting Type	Panel Mount, Through Hole
Termination	Solder
Shell Material, Finish	Steel, Nickel Plated
Contact Type	Signal
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the NorComp 172-025-182-021 are grouped based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

Connector style: D-Sub
Connector type: Plug with male pins
Position count: 25 positions
Row configuration: 2 rows
Shell size: 3 (DB, B)
Termination method: Solder
Flammability rating: UL94 V-0
Regulatory compliance: ROHS3 Compliant, REACH Unaffected

Secondary Compatibility Factors:

Mounting type: Panel mount or through-hole configurations
Shell material: Steel construction
Contact finish: Gold or unspecified finishes
Operating temperature range: -50°C to -55°C minimum, 125°C maximum

Parts meeting all primary criteria are classified as direct substitutes. Variations in current rating, contact form (stamped vs. machined), flange feature design, and packaging do not prevent functional substitution when the primary parameters align.

Parameter Comparison

Part Number	Manufacturer	Connector Type	Positions	Mounting Type	Shell Material, Finish	Current Rating (Amps)	Operating Temperature	RoHS Status	Inventory (Pcs)
172-025-182-021	NorComp Inc.	Plug, Male Pins	25	Panel Mount, Through Hole	Steel, Nickel Plated	5A	-50°C ~ 125°C	ROHS3 Compliant	1,171
172-025-183L021	NorComp Inc.	Plug, Male Pins	25	Panel Mount, Through Hole	Steel, Nickel Plated	5A	-50°C ~ 125°C	ROHS3 Compliant	989
09653616711	HARTING	Plug, Male Pins	25	Through Hole	Steel	6.5A	-55°C ~ 125°C	ROHS3 Compliant	1,003
09653616712	HARTING	Plug, Male Pins	25	Through Hole	Steel	6.5A	-55°C ~ 125°C	ROHS3 Compliant	1,020
09653617711	HARTING	Plug, Male Pins	25	Through Hole	Steel	6.5A	-55°C ~ 125°C	ROHS3 Compliant	1,050
09663216701	HARTING	Plug, Male Pins	25	Through Hole	Steel	7.5A	-55°C ~ 125°C	ROHS3 Compliant	935
09663216702	HARTING	Plug, Male Pins	25	Through Hole	Steel	7.5A	-55°C ~ 125°C	ROHS3 Compliant	815
09663217701	HARTING	Plug, Male Pins	25	Through Hole	Steel	7.5A	-55°C ~ 125°C	ROHS3 Compliant	758
09663217702	HARTING	Plug, Male Pins	25	Through Hole	Steel	7.5A	-55°C ~ 125°C	ROHS3 Compliant	1,139
SDBB-25P(55)	Hirose Electric Co Ltd	Plug, Male Pins	25	Panel Mount, Through Hole	Steel, Nickel Plated	3A	-°C ~ °C	RoHS Compliant	943

Engineering Selection Recommendations

Direct Substitutes (Highest Compatibility):

The NorComp 172-025-183L021 is the primary direct substitute. Both parts are manufactured by NorComp Inc., share identical electrical and mechanical specifications, and carry ROHS3 compliance. The only difference is packaging format (tray vs. standard). This part is suitable for direct replacement in all applications where the original 172-025-182-021 is specified.

Compatible Alternatives (HARTING Series):

The HARTING 09653616711, 09653616712, 09653617711, 09663216701, 09663216702, 09663217701, and 09663217702 connectors are functionally compatible substitutes. All maintain the 25-position D-Sub plug configuration with male pins, solder termination, and steel construction. These parts meet ROHS3 compliance and operate across the required temperature range. Current ratings range from 6.5A to 7.5A, exceeding the 5A specification of the original part. Mounting type differs (through-hole only, without panel mount flange), requiring mechanical design review for panel-mount applications.

Limited Compatibility (Hirose SDBB-25P(55)):

The Hirose SDBB-25P(55) maintains the 25-position D-Sub plug configuration with panel mount capability and nickel-plated steel shell. However, the current rating of 3A is below the 5A specification of the original part. This part is suitable only for applications where current requirements do not exceed 3A. RoHS compliance is confirmed; REACH status is not specified in available data.

Regulatory Compliance:

All substitute parts listed carry ROHS3 compliance and REACH Unaffected status, meeting modern regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can the NorComp 172-025-183L021 be used as a direct replacement for the 172-025-182-021?

A: Yes. Both parts are identical in electrical and mechanical specifications. The only difference is packaging (tray vs. standard). No design changes are required.

Q: What is the key difference between NorComp and HARTING substitutes?

A: NorComp substitutes maintain panel mount flange design. HARTING alternatives provide through-hole mounting only. If panel mounting is required, NorComp 172-025-183L021 is the appropriate choice. HARTING parts require mechanical redesign for panel applications.

Q: Are HARTING connectors suitable for applications requiring 5A current?

A: Yes. HARTING parts 09653616711, 09653616712, and 09653617711 are rated for 6.5A, and 09663216701, 09663216702, 09663217701, and 09663217702 are rated for 7.5A. All exceed the 5A requirement of the original part.

Q: Can the Hirose SDBB-25P(55) replace the NorComp 172-025-182-021?

A: The Hirose connector is compatible only for applications where current does not exceed 3A. The original part is rated for 5A. Use the Hirose part only if application current requirements are confirmed below 3A.

Q: What is the operating temperature range for substitute parts?

A: NorComp parts operate from -50°C to 125°C. HARTING parts operate from -55°C to 125°C, providing extended low-temperature capability. The Hirose part operating temperature range is not specified in available data.

Q: Are all substitute parts ROHS3 compliant?

A: NorComp and HARTING substitutes are ROHS3 compliant. The Hirose part carries RoHS compliance; specific revision level is not specified.

Q: What inventory levels are available for each substitute?

A: NorComp 172-025-183L021: 989 pcs. HARTING 09653616711: 1,003 pcs. HARTING 09653616712: 1,020 pcs. HARTING 09653617711: 1,050 pcs. HARTING 09663216701: 935 pcs. HARTING 09663216702: 815 pcs. HARTING 09663217701: 758 pcs. HARTING 09663217702: 1,139 pcs. Hirose SDBB-25P(55): 943 pcs.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message