DB9 Male PCB to Screw Terminal Block Connector (DB41)
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Prices updated: 13 Oct 2026
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About this product
A 9-pin male D-subminiature (DB9) connector for PCB mounting, with screw terminal blocks that let you connect individual wires without crimping. It is used for serial and other DB9-based signal interfaces in prototypes and panel wiring. The PCB side uses 2.54 mm pin header holes.
Specifications
- Connector type
- DB9 male (D-Subminiature, 9 pins)
- Mounting
- PCB
- Termination
- Screw terminal blocks
- PCB pin pitch
- 2.54 mm
Frequently asked questions
Can I connect a DB9 serial cable directly to a microcontroller pin?
Not directly. DB9 serial signals such as RS-232 use voltage levels that are much higher than 3.3 V or 5 V logic. Use a level shifter or RS-232 transceiver between the connector and the microcontroller.
What pin spacing does the PCB side use?
The PCB side uses 2.54 mm pin header holes, which match standard breadboard and perfboard spacing.
