DEM09P343 D-Sub 9-Position Plug Connector - Equivalent & Substitute Parts

Part Overview

The DEM09P343 is a 9-position D-Sub plug connector manufactured by Amphenol ICC (FCI) in the DM HE501 series. This through-hole solder-terminated connector features male pins, a 1 (DE, E) shell size, and is rated for 7.5A per contact at 300V. The part is currently active in production with 748 units in stock.

Substitute parts are necessary when the original DEM09P343 becomes unavailable, when alternative packaging formats are required, or when compliance requirements (such as RoHS status) must be met for specific applications.

Key Parameters

Parameter	DEM09P343 Specification
Connector Style	D-Sub
Connector Type	Plug, Male Pins
Number of Positions	9
Number of Rows	2
Shell Size, Connector Layout	1 (DE, E)
Mounting Type	Through Hole
Termination	Solder
Shell Material, Finish	Steel, Yellow Cadmium Plated
Contact Finish	Gold
Current Rating (Amps)	7.5A per Contact
Voltage Rating	300V
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
Contact Material	Brass
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters:

Connector Style: D-Sub
Connector Type: Plug, Male Pins
Number of Positions: 9
Number of Rows: 2
Shell Size, Connector Layout: 1 (DE, E)
Mounting Type: Through Hole
Termination: Solder
Material Flammability Rating: UL94 V-0
Operating Temperature Range: -55°C minimum and 125°C maximum

All substitute parts listed meet these mandatory criteria. Variations in shell finish, contact finish, current rating, voltage rating, and RoHS compliance are noted but do not disqualify substitution when the core parameters align.

Parameter Comparison

Parameter	DEM09P343 (Amphenol ICC)	09651216703 (HARTING)	09651217703 (HARTING)	1-5747871-3 (TE Connectivity)	1-5747871-4 (TE Connectivity)	1-5747871-6 (TE Connectivity)	1-747871-4 (TE Connectivity)	1-747871-6 (TE Connectivity)	172-009-112R001 (NorComp)	172-E09-113R001 (NorComp)	172-E09-113R011 (NorComp)
Connector Style	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	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	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	9	9	9	9	9	9	9	9	9	9	9
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Shell Size, Connector Layout	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shell Material, Finish	Steel, Yellow Cadmium Plated	Steel	Steel	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated
Contact Finish	Gold	-	-	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Current Rating (Amps)	7.5A per Contact	6.5A	6.5A	6A	6A	6A	6A	6A	5A	5A	5A
Voltage Rating	300V	-	-	125V	125V	125V	125V	125V	-	-	-
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-50°C ~ 100°C	-50°C ~ 100°C	-50°C ~ 100°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Material	Brass	Copper Alloy	Copper Alloy	Brass	Brass	Brass	Brass	Brass	Brass	Brass	Brass
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active	Obsolete	Active	Active

Engineering Selection Recommendations

HARTING 09651216703 and 09651217703: Both parts are ROHS3 compliant and maintain the full operating temperature range of -55°C to 125°C. The primary difference is packaging format (Tray vs. Bulk). Current rating is reduced to 6.5A. These parts are suitable for applications requiring RoHS3 compliance with standard through-hole mounting.

TE Connectivity AMPLIMITE HD-20 Series (1-5747871-3, 1-5747871-4, 1-5747871-6, 1-747871-4, 1-747871-6): All five variants are active products with RoHS compliance status clearly defined. Operating temperature is limited to -55°C to 105°C, and current rating is 6A. Variants differ in packaging (Tube vs. Bulk) and RoHS certification status. These parts feature grounding indents and tin-plated steel shells. Select based on packaging requirements and RoHS compliance needs.

NorComp 172-E09-113R001 and 172-E09-113R011: Both are active ROHS3-compliant parts with panel mount capability in addition to through-hole mounting. Operating temperature is limited to -50°C to 100°C, and current rating is 5A. The 172-E09-113R011 includes board-side (4-40) mounting features. These parts are suitable for applications requiring panel-mount flexibility.

NorComp 172-009-112R001: This part is obsolete and should be avoided for new designs. It is included for reference only when legacy system compatibility is required.

Frequently Asked Questions (FAQ)

Q: Can I substitute the DEM09P343 with any of these parts directly?

A: All listed substitute parts share the core D-Sub 9-position plug configuration with 1 (DE, E) shell size, through-hole solder termination, and UL94 V-0 flammability rating. Direct mechanical and electrical substitution is possible. However, verify that your application can tolerate reduced current ratings (5A to 6.5A versus the original 7.5A) and, in some cases, reduced operating temperature ranges and voltage ratings.

Q: What is the difference between the HARTING parts 09651216703 and 09651217703?

A: Both parts are electrically and mechanically identical. The difference is packaging: 09651216703 is supplied in Tray format, while 09651217703 is supplied in Bulk format. Select based on your procurement and assembly requirements.

Q: Why do the TE Connectivity parts have a lower operating temperature maximum of 105°C instead of 125°C?

A: Operating temperature range is determined by the connector design and materials used. The TE Connectivity AMPLIMITE HD-20 series is rated to 105°C maximum. If your application requires operation at temperatures above 105°C, the HARTING or original Amphenol ICC parts are more suitable.

Q: Are the NorComp parts with panel mount capability fully compatible?

A: The NorComp 172-E09-113R001 and 172-E09-113R011 include panel mount features in addition to through-hole mounting. They are mechanically and electrically compatible with the DEM09P343 for through-hole applications. The panel mount feature is an additional capability that does not affect through-hole compatibility.

Q: What does RoHS compliance mean for connector selection?

A: RoHS (Restriction of Hazardous Substances) compliance indicates that the part does not contain restricted materials such as lead, cadmium, or mercury. The original DEM09P343 is RoHS non-compliant due to its yellow cadmium plating. If your application or region requires RoHS compliance, select from the ROHS3-compliant alternatives: HARTING 09651216703, HARTING 09651217703, TE Connectivity 1-5747871-3, 1-5747871-6, 1-747871-6, or NorComp 172-E09-113R001 and 172-E09-113R011.

Q: Can I use a substitute part with a lower current rating?

A: Substitution with a lower current rating is permissible only if your circuit design does not exceed the substitute part's current specification. For example, if the DEM09P343 is rated for 7.5A per contact and you select a substitute rated for 6A per contact, ensure that your actual circuit current does not exceed 6A per contact. Exceeding the rated current will cause connector failure.

Q: What is the significance of contact finish differences?

A: The DEM09P343 features gold contact finish, which provides superior corrosion resistance and signal integrity. Some substitute parts (HARTING 09651216703 and 09651217703) do not specify contact finish. Gold-plated contacts are generally preferred for signal applications and harsh environments. If contact finish is critical to your application, prioritize substitutes with specified gold plating.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message