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DB9 Breakout Boards


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(click image to enlarge)
  • Available with DB9 Male or Female connector
  • Screw terminal for each of the 9 lines
  • Perfect for prototyping serial port circuits
  • Solder pad connection space for all 9 lines
  • Supports addition of .1" pin headers
  • Screw terminals accomodate wire sizes from 16AWG to 26AWG
  • Approximate dimensions: 2.38" x 2.3"
  • Rubber feet or DIN rail mount

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See Also: Dual DB9 Breakout Board,   More Breakout Boards,   DB9 Breadboard Adapters,   DB9 Cables

General Description

These breakout boards bring all 9 pins of a DB9 connector out to screw terminal blocks for easy connection and prototyping work. They are available with both male and female connectors. The BRK9M has a male connector and the BRK9F has a female connector. Each pin is also brought to solder pads (4 per pin) at 0.1" spacing, allowing easy addition of standard pin headers or other small components. Please note that the breakout boards are manufactured with a connection between each connector pin and the corresponding terminal block position; no soldering of any type is necessary. The solder pads simply provide an area for making optional connections to additional headers or other components.

For a smaller form factor DB9 breakout board without the prototyping area, mounting holes, or DIN mount option, please click here.

These break out boards are perfect for experimentation and prototype work, as well as for use in the educational laboratory. They are well-suited for work with RS-232 serial ports, I/O cards, and any other device that uses a DB-9 connector. It can be helpful in making MODBUS connections. A breakout board is sometimes referred to as a "transition module", "terminal board", or "interface module".

For mounting on a panel, we suggest the rubber feet version (-FT), 1/4" nylon standoffs under the mounting holes, and #6 screws.

Technically, the correct term for a DB9 connector is DE9, but that term is not commonly used.

For more information, please see:

Connector Style

These breakout boards are available with either a Right Angle connector or a Straight ("Vertical") connector. The terms Right Angle and Straight refer to the connector itself, NOT the relationship of the mating cable to the PCB. In fact, the cable mating to a Right Angle connector is parallel to the PCB, while the cable mating to a Straight connector is perpendicular to the PCB. These are pictured below:
Right Angle Connector
BRK9M-R-FT pictured
Straight Connector
BRK9F-S-FT pictured

DIN Rail Mount Version

These products are also available with DIN rail mounting clips for quick and convenient mounting where DIN rail is used. Product numbers ending with -DIN come with DIN clips already installed and ready to mount. The clips allow mounting on standard 35mm rail as well as 32mm rail.
(BRK9M-R-DIN pictured - rail not included)

Pricing and Ordering

Product # Description Quantity Pricing RoHS Buy Now
1+ 10+
DB9 Male Right Angle Connector:
BRK9M-R-FT DB9 Male Breakout Board, R/A Connector, Feet $12.00 $11.25 Yes
BRK9M-R-DIN DB9 Male Breakout Board, R/A Connector, DIN Rail Mount $13.50 $12.75 Yes
DB9 Male Straight Connector:
BRK9M-S-FT DB9 Male Breakout Board, Straight Connector, Feet $12.50 $11.75 Yes
BRK9M-S-DIN DB9 Male Breakout Board, Straight Connector, DIN Rail Mount $14.00 $13.25 Yes
DB9 Female Right Angle Connector:
BRK9F-R-FT DB9 Female Breakout Board, R/A Connector, Feet $12.00 $11.25 Yes
BRK9F-R-DIN DB9 Female Breakout Board, R/A Connector, DIN Rail Mount $13.50 $12.75 Yes
DB9 Female Straight Connector:
BRK9F-S-FT DB9 Female Breakout Board, Straight Connector, Feet $12.50 $11.75 Yes
BRK9F-S-DIN DB9 Female Breakout Board, Straight Connector, DIN Rail Mount $14.00 $13.25 Yes

All of the above items are normally stocked. Please call us if you need to verify availability for a specific quantity, or for pricing at higher quantities. Please visit our ordering page for our ordering policies and a list of ordering methods.
What is RoHS? If you need a RoHS version of a non-RoHS product, please contact us.

© 2016 Winford Engineering, LLC;  4561 Garfield Road; Auburn,  Michigan  48611;  USA