DEMM9PK D-Sub 9 Position Right Angle Solder Plug Connector

Part Overview

The DEMM9PK is a 9 position D-Sub plug connector manufactured by ITT Cannon, LLC, featuring male pins, right angle mounting, and solder termination. This connector is classified as a D-shaped connector (Shell Size 1, DE/E layout) with a 2-row configuration suitable for panel mount and through-hole applications. The part is currently active in production with 774 units in stock.

Equivalent and substitute parts are necessary when the original DEMM9PK becomes unavailable, when design requirements demand alternative compliance certifications (such as RoHS compliance), or when specific operational parameters require adjustment for particular application environments.

Key Parameters

Parameter	DEMM9PK 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	Panel Mount, Through Hole, Right Angle
Termination	Solder
Shell Material, Finish	Steel, Yellow Chromate Plated Zinc
Contact Finish	Gold
Current Rating	7.5A
Operating Temperature Range	-55°C to 150°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS non-compliant
Contact Material	Copper Alloy
Dielectric Material	Polycyclohexylenedimethylene Terephthalate (PCT)

Substitute Part Grouping Explanation

Substitution of the DEMM9PK is determined by strict alignment of the following core parameters:

Mandatory Matching 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: Right Angle (with Panel Mount and/or Through Hole capability)
Termination: Solder
Contact Finish: Gold

Critical Operational Parameters:

Current Rating: Must equal or exceed 7.5A
Operating Temperature Range: Must encompass or exceed -55°C to 150°C
Material Flammability Rating: UL94 V-0 compliance required

Compliance Considerations:

RoHS Status: Substitutes may be RoHS compliant or non-compliant depending on application requirements
Contact Material: Copper Alloy or equivalent conductive materials acceptable

Substitute parts identified in this reference meet all mandatory matching parameters. Variations in shell finish material, contact finish thickness, backset spacing, and flange features are permitted when the core electrical and mechanical parameters remain within specification.

Parameter Comparison

Parameter	DEMM9PK (ITT Cannon)	174-E09-113R001 (NorComp)	1757837-1 (TE Connectivity)	M24308/24-31F (Amphenol)	RDED-9P(55) (Hirose)	RDED-9P-LNA(4-40)(55) (Hirose)	RDED-9P-LNA(55) (Hirose)	RDED-9PE-LNA(55) (Hirose)	RDED-9PE1/M2.6(55) (Hirose)
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
Number of Positions	9	9	9	9	9	9	9	9	9
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)
Mounting Type	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle	Panel Mount, Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Shell Material, Finish	Steel, Yellow Chromate Plated Zinc	Steel, Nickel Plated	Steel, Yellow Chromate Plated Zinc	Steel, Yellow Cadmium Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated	Steel, Nickel Plated
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Current Rating (Amps)	7.5A	5A	5A	7.5A	3A	3A	3A	3A	3A
Operating Temperature Range	-55°C to 150°C	-50°C to 100°C	-55°C to 125°C	-55°C to 125°C	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C	-55°C to 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0	Not specified	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Contact Material	Copper Alloy	Not specified	Brass	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Voltage Rating	Not specified	Not specified	Not specified	Not specified	350V	350V	350V	350V	350V

Engineering Selection Recommendations

Full Electrical and Mechanical Equivalents:

The M24308/24-31F (Amphenol Interconnect India) provides the closest electrical equivalence to the DEMM9PK, matching the 7.5A current rating and operating temperature range of -55°C to 125°C. Both parts feature UL94 V-0 flammability rating and copper alloy contact material. The M24308/24-31F is RoHS non-compliant, maintaining compatibility with legacy systems designed for the DEMM9PK. This part is suitable for direct substitution in applications where RoHS compliance is not mandated.

RoHS Compliant Alternatives:

For applications requiring RoHS compliance, the 174-E09-113R001 (NorComp Inc.) and RDED-9P-LNA(55) (Hirose Electric Co Ltd) are available. The 174-E09-113R001 is ROHS3 compliant with a 5A current rating and operating temperature range of -50°C to 100°C. The RDED-9P-LNA(55) is RoHS compliant with a 3A current rating and operating temperature range of -55°C to 85°C. Both maintain the 9-position D-Sub configuration with gold-plated contacts and solder termination.

Military and Aerospace Applications:

The 1757837-1 (TE Connectivity Aerospace, Defense and Marine) is specified to MIL-DTL-24308 and AMPLIMITE 109 standards, suitable for military and aerospace applications. This part is ROHS3 compliant with a 5A current rating and operating temperature range of -55°C to 125°C.

Current Rating Limitations:

Hirose Electric Co Ltd substitute parts (RDED series) feature a reduced current rating of 3A compared to the DEMM9PK's 7.5A. These parts are suitable only for applications where current requirements do not exceed 3A. All Hirose alternatives provide 350V voltage rating and RoHS compliance options.

Temperature Range Considerations:

Applications requiring the full -55°C to 150°C operating range of the DEMM9PK have limited substitution options. The M24308/24-31F supports -55°C to 125°C. Hirose RDED series parts are limited to -55°C to 85°C. The 174-E09-113R001 supports only -50°C to 100°C. Design review is required if maximum temperature operation above 125°C is necessary.

Frequently Asked Questions (FAQ)

Q: Can the RDED-9P(55) directly replace the DEMM9PK in all applications?

A: The RDED-9P(55) meets the core D-Sub 9-position plug configuration requirements but has a reduced current rating of 3A versus the DEMM9PK's 7.5A. Substitution is valid only if the application current requirement does not exceed 3A. Additionally, the operating temperature range is limited to -55°C to 85°C compared to the DEMM9PK's -55°C to 150°C.

Q: What is the difference between RDED-9P-LNA(4-40)(55) and RDED-9P-LNA(55)?

A: Both parts are Hirose Electric Co Ltd D-Sub 9-position plugs with identical electrical specifications. The primary difference is the flange feature: RDED-9P-LNA(4-40)(55) features a mating side female screwlock with 4-40 thread specification, while RDED-9P-LNA(55) features a mating side female screwlock with M2.6 thread specification. Selection depends on the mating connector's locking mechanism requirements.

Q: Is the M24308/24-31F suitable for RoHS-compliant applications?

A: No. The M24308/24-31F is RoHS non-compliant. For RoHS-compliant substitution, select from the 174-E09-113R001 (ROHS3 compliant), 1757837-1 (ROHS3 compliant), or Hirose RDED series parts (RoHS compliant or ROHS3 compliant variants).

Q: What is the significance of the shell finish material difference between DEMM9PK and substitute parts?

A: The DEMM9PK features yellow chromate plated zinc finish, while most Hirose alternatives feature nickel plated finish. Both finishes provide corrosion resistance suitable for standard industrial environments. The M24308/24-31F uses yellow cadmium plated finish. Shell finish selection does not affect electrical performance but may impact environmental compliance and corrosion resistance in specific chemical environments.

Q: Can I use a substitute part with lower current rating if my application only requires partial current capacity?

A: Yes. If your application current requirement is confirmed to be 3A or less, Hirose RDED series parts are valid substitutes. If your requirement is between 3A and 5A, the 174-E09-113R001 or 1757837-1 are suitable. Current rating represents the maximum safe continuous current; operating below this rating does not compromise connector performance.

Q: Which substitute part has the widest operating temperature range?

A: The M24308/24-31F supports -55°C to 125°C, which is the widest range among substitute parts. The DEMM9PK itself supports -55°C to 150°C, which cannot be matched by any listed substitute. If operation above 125°C is required, the DEMM9PK must be retained or alternative connector families must be evaluated.

Q: Are all substitute parts available in the same packaging as the DEMM9PK?

A: No. The DEMM9PK packaging is not specified in the provided data. Substitute parts are available in the following packaging: 174-E09-113R001 (Tray), 1757837-1 (Bulk), M24308/24-31F (Tray), and all Hirose RDED variants (Tray). Packaging selection may affect procurement lead times and minimum order quantities.

Q: What does the "(55)" designation in Hirose part numbers indicate?

A: The "(55)" designation in Hirose part numbers indicates the contact finish thickness specification of 8.00µin (0.203µm) for gold plating. This is a Hirose internal specification code and does not affect compatibility or performance relative to other gold-plated D-Sub connectors.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message