DB9 Male Serial Connector 9-Pin PCB Mount
Currently unavailable
No store has this product in stock right now. Prices below are the last ones we recorded.
Prices updated: 13 Oct 2026
Price history
Lowest daily price, last 90 days
Not enough price history yet.
About this product
A 9-pin male D-sub (DB9) connector for PCB mounting, commonly used for RS-232 serial ports on industrial equipment, older PCs and instrumentation. It lets you add a serial interface to your own board or cable. RS-232 voltage levels differ from 3.3 V or 5 V logic, so a level converter is needed for microcontrollers.
Specifications
- Pins
- 9
- Gender
- Male / ذكر
- Mounting
- PCB mount / للتثبيت على لوحة PCB
- Connector type
- DB9 (D-sub) / DB9 (D-sub)
Frequently asked questions
Can I connect this DB9 directly to an Arduino TX and RX pins?
No. RS-232 uses about plus or minus 12 V levels and would damage 5 V or 3.3 V pins. Use a level converter such as a MAX232-type IC or a USB-to-serial adapter with RS-232 levels.
Which pins carry the serial signals on a standard DB9?
On the standard RS-232 DB9 pinout, pin 2 is RXD, pin 3 is TXD and pin 5 is GND. Confirm the pinout of your specific cable or device before wiring.
