DEM09SN D-Sub 9 Position Receptacle Connector

Part Overview

The DEM09SN is a 9 position D-Sub receptacle connector manufactured by Amphenol ICC (FCI) with female sockets and solder cup termination. This connector is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The part operates within a temperature range of -55°C to 155°C and supports a current rating of 7.5A per contact at 300V.

Substiute Parts

DEM09SN

Amphenol ICC (FCI)In Stock: 928DEM09SN Datasheet

Current PartRFQ

DEM09S

Amphenol ICC (FCI)In Stock: 1261DEM09S Datasheet

MFR RecommendedRFQ

3-1393483-8

TE Connectivity AMP ConnectorsIn Stock: 9763-1393483-8 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DEM09SN are qualified based on the following critical parameters that must match or exceed the original specification:

Core Compatibility Parameters:

• Connector Style: D-Sub
• Connector Type: Receptacle, Female Sockets
• Number of Positions: 9
• Number of Rows: 2
• Shell Size, Connector Layout: 1 (DE, E)
• Mounting Type: Free Hanging (In-Line)
• Termination: Solder Cup
• Flange Feature: Housing/Shell (Unthreaded)
• Contact Type: Signal
• Material Flammability Rating: UL94 V-0

Performance Parameters:

• Current Rating: Must support minimum 3A per contact (DEM09SN rated at 7.5A)
• Voltage Rating: Must support minimum 300V (where specified)
• Operating Temperature: Must support minimum -55°C to 125°C range

The two qualified substitutes (DEM09S and 3-1393483-8) maintain full mechanical and electrical compatibility with the DEM09SN while offering active product status and improved compliance profiles.

Parameter Comparison

Engineering Selection Recommendations

DEM09S (Amphenol ICC - FCI): This substitute maintains identical electrical and mechanical specifications to the DEM09SN while offering active product status. The DEM09S is RoHS compliant and represents the direct evolution within the Amphenol ICC product line. Selection of DEM09S is appropriate for applications requiring continuity with the original DEM09SN design and where RoHS compliance is required.

3-1393483-8 (TE Connectivity AMP Connectors): This substitute provides cross-manufacturer compatibility with identical mechanical form factor and connector layout. The 3-1393483-8 is ROHS3 compliant and maintains the required UL94 V-0 flammability rating. The current rating of 3A per contact is lower than the DEM09SN specification of 7.5A; this substitute is suitable for applications where current requirements do not exceed 3A per contact. The tin-plated steel shell differs from the cadmium-plated finish of the original part.

Both substitutes are active products with current manufacturing support and improved compliance certifications compared to the obsolete DEM09SN.

Frequently Asked Questions (FAQ)

Q: Can DEM09S be used as a direct replacement for DEM09SN? A: Yes. The DEM09S maintains identical connector type, position count, shell size, mounting configuration, and termination method. Both parts support the same voltage rating (300V) and current rating (7.5A per contact). The primary difference is product status (active vs. obsolete) and RoHS compliance.

Q: What are the limitations of using 3-1393483-8 as a substitute? A: The 3-1393483-8 has a reduced current rating of 3A per contact compared to the DEM09SN specification of 7.5A. Applications requiring higher current capacity per contact should use DEM09S instead. The shell finish differs (tin plated vs. cadmium plated), and voltage rating is not specified for this part.

Q: Are there temperature range differences between substitutes? A: Yes. The DEM09SN operates from -55°C to 155°C, while both DEM09S and 3-1393483-8 operate from -55°C to 125°C. Applications requiring operation above 125°C cannot use these substitutes.

Q: What is the packaging difference between DEM09SN and its substitutes? A: The DEM09SN packaging is not specified in the original documentation. Both DEM09S and 3-1393483-8 are supplied in Tray packaging, which is standard for production quantities of D-Sub connectors.

Q: Are both substitutes RoHS compliant? A: DEM09S is RoHS compliant. The 3-1393483-8 is ROHS3 compliant. The original DEM09SN is RoHS non-compliant. Applications subject to RoHS requirements must use one of the substitute parts.

Q: Can these parts be used interchangeably in the same assembly? A: DEM09S and 3-1393483-8 are mechanically compatible and can be used in the same connector interface. However, they should not be mixed within a single assembly due to differences in current rating, shell finish, and contact material. Select one substitute and maintain consistency throughout the assembly.