9-Position D-Sub Plug for Signal-Duty Serial and Control Interfaces
The TE Connectivity AMPLIMITE HD-20 2301826-1 is a 9-position, 2-row D-Sub plug in the standard DE-9 shell layout. The housing is glass-filled PBT rated UL94 V-0, acceptable inside equipment enclosures requiring flame-rated components.
Through-hole solder termination, vertical orientation. The board-side flange carries a 4-40 threaded insert — the mating receptacle secures with jackscrews, standard for D-sub retention in high-vibration environments. Grounding indents in the shell mate with the receptacle face to bleed shield current before it reaches the signal pins — relevant for EMI control in industrial enclosures with long cable runs.
Lifecycle and Compliance
The steel shell carries a tin-nickel finish, providing corrosion resistance in indoor environments without the cost of stainless. The brass contacts are gold-over-nickel plated at 15.0µin.
Mating and Compatibility
Mates with any standard D-Sub receptacle (female) with 4-40 threaded jackscrews. The 1 (DE, E) shell size is the smallest standard D-sub footprint — common for RS232, RS485, and low-pin-count control interfaces. The 9-position count matches the BOM line for a standard serial port connector.