DEMM9PLF225 D-Sub Plug 9 Position Right Angle Solder Connector

Part Overview

The DEMM9PLF225 is a 9-position D-Sub plug connector manufactured by ITT Cannon, LLC, featuring right-angle solder termination and panel mount through-hole installation. This connector is classified as a D-shaped connector with male pins, designed for signal transmission in industrial and aerospace applications. The part maintains active product status with 1015 units in current inventory.

Equivalent and substitute parts are necessary when the original DEMM9PLF225 becomes unavailable, when supply chain constraints occur, or when design requirements permit alternative manufacturers while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

DEMM9PLF225

ITT Cannon, LLCIn Stock: 1106DEMM9PLF225 Datasheet

Current PartRFQ

174-E09-113R001

NorComp Inc.In Stock: 1240174-E09-113R001 Datasheet

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1757837-1

TE Connectivity Aerospace, Defense and MarineIn Stock: 12441757837-1 Datasheet

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M24308/24-31F

Amphenol Interconnect IndiaIn Stock: 1179M24308/24-31F Datasheet

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RDED-9P(55)

Hirose Electric Co LtdIn Stock: 1082RDED-9P(55) Datasheet

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RDED-9P-LNA(4-40)(55)

Hirose Electric Co LtdIn Stock: 965RDED-9P-LNA(4-40)(55) Datasheet

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RDED-9P-LNA(55)

Hirose Electric Co LtdIn Stock: 3578RDED-9P-LNA(55) Datasheet

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RDED-9PE-LNA(55)

Hirose Electric Co LtdIn Stock: 1038RDED-9PE-LNA(55) Datasheet

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RDED-9PE1/M2.6(55)

Hirose Electric Co LtdIn Stock: 1260RDED-9PE1/M2.6(55) Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DEMM9PLF225 is determined by strict adherence to the following critical 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: Panel Mount, Through Hole, Right Angle
• Termination: Solder
• Contact Type: Signal
• Flange Feature: Housing/Shell (Unthreaded)

Allowable Parameter Variations:

• Shell Material and Finish: Stainless Steel, Steel with various platings (Nickel, Yellow Chromate, Yellow Cadmium)
• Contact Finish Thickness: Variations permitted (Flash, 8.00µin, 10.0µin, 50.0µin)
• Current Rating: 3A to 7.5A (lower ratings acceptable for signal-only applications)
• Operating Temperature Range: Minimum -55°C, maximum 85°C to 150°C (subset of main part range acceptable)
• Dielectric Material: PCT, PA6T Nylon 6T, Polyester Glass Filled, PBT
• Contact Material: Copper Alloy, Brass, Phosphor Bronze
• RoHS Status: RoHS Compliant or ROHS3 Compliant acceptable; RoHS non-compliant parts listed for reference only
• Voltage Rating: 350V acceptable for signal applications

Seven substitute parts meet the mandatory parameter requirements for the DEMM9PLF225.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility):

The RDED-9P-LNA(55) from Hirose Electric Co Ltd represents the optimal substitute when the DEMM9PLF225 is unavailable. This part maintains all mandatory mechanical and electrical parameters, including 9-position D-Sub plug configuration, right-angle solder termination, and panel mount through-hole installation. The RDED-9P-LNA(55) carries RoHS Compliant status with 3472 units in inventory, providing supply security. The operating temperature range of -55°C to 85°C covers the lower portion of the DEMM9PLF225 specification; applications requiring temperatures above 85°C require evaluation against specific system requirements.

The M24308/24-31F from Amphenol Interconnect India provides an alternative with matching current rating of 7.5A and extended operating temperature range to 125°C. This part is listed as RoHS non-compliant and should be selected only when RoHS compliance is not a design requirement. The yellow cadmium plating on the steel shell differs from the stainless steel finish of the DEMM9PLF225.

Secondary Substitutes (Acceptable with Parameter Awareness):

The 174-E09-113R001 from NorComp Inc. and 1757837-1 from TE Connectivity Aerospace, Defense and Marine both meet mandatory connector parameters with current ratings of 5A. These parts are suitable for applications where the 7.5A rating of the DEMM9PLF225 exceeds actual circuit requirements. Both parts carry ROHS3 Compliant status. The 174-E09-113R001 operates to 100°C maximum; the 1757837-1 extends to 125°C.

The RDED-9P(55), RDED-9P-LNA(4-40)(55), and RDED-9PE-LNA(55) from Hirose Electric Co Ltd are functionally equivalent with 3A current rating. These parts are appropriate for signal-only applications where current capacity does not exceed 3A. All three maintain RoHS compliance and operate within the -55°C to 85°C range.

Compliance Considerations:

Applications requiring RoHS compliance should exclude M24308/24-31F. Applications requiring REACH compliance should exclude 1757837-1, which carries REACH Affected status. All other substitutes carry either REACH Unaffected or no REACH designation.

Frequently Asked Questions (FAQ)

Q: Can the RDED-9P(55) replace the DEMM9PLF225 in all applications?

A: The RDED-9P(55) is mechanically and electrically compatible for connector mating and solder termination. However, the current rating is 3A versus 7.5A on the DEMM9PLF225. Substitution is valid only when circuit current does not exceed 3A. The operating temperature maximum of 85°C is lower than the DEMM9PLF225 specification of 150°C; applications requiring higher temperatures require alternative selection.

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

A: Both parts are mechanically identical 9-position D-Sub plugs with right-angle solder termination. The primary difference is the flange feature: RDED-9P-LNA(55) features a mating side female screwlock with M2.6 thread, while RDED-9P-LNA(4-40)(55) features a mating side female screwlock with 4-40 thread. Selection depends on the mating connector specification. Both parts carry identical electrical ratings and operating parameters.

Q: Is the M24308/24-31F suitable for new designs?

A: The M24308/24-31F meets all mandatory connector parameters and carries active product status with 1088 units in inventory. However, this part is RoHS non-compliant. For new designs subject to RoHS regulations or customer requirements, alternative parts such as RDED-9P-LNA(55), 174-E09-113R001, or 1757837-1 are recommended. The M24308/24-31F is appropriate for legacy system maintenance or applications where RoHS compliance is not required.

Q: What packaging formats are available for these substitutes?

A: The DEMM9PLF225 packaging is not specified in the provided data. Substitute parts are available in the following packaging formats: Tray (174-E09-113R001, M24308/24-31F, RDED-9P(55), RDED-9P-LNA(4-40)(55), RDED-9P-LNA(55), RDED-9PE-LNA(55)) and Bulk (1757837-1). Packaging selection should align with procurement and assembly requirements.

Q: Are all substitute parts rated for the same voltage?

A: The DEMM9PLF225 voltage rating is not specified. Hirose Electric substitute parts (RDED series) carry a 350V voltage rating. The NorComp, TE Connectivity, and Amphenol parts do not specify voltage rating. For applications requiring voltage rating confirmation, contact the respective manufacturer or consult detailed product datasheets.

Q: Can substitutes be intermixed in the same assembly?

A: All listed substitutes are mechanically and electrically compatible for mating with standard D-Sub receptacles. However, mixing different manufacturers in a single assembly may introduce variations in contact resistance, shell finish, and dielectric material. For consistency and predictable performance, use a single substitute part number throughout an assembly or system.