SparkFun
Female DE9/DB9 Breakout
· MPN: BOB-29196
This compact breakout board makes it easy to bring a female DE9 connector, often called DB9, onto a breadboard or into a custom wiring harness.All nine conne...
This compact breakout board makes it easy to bring a female DE9 connector, often called DB9, onto a breadboard or into a custom wiring harness.
All nine connector pins are broken out to 0.1in-spaced plated through-hole pads, along with two extra ground connections. It is handy for RS-232-style projects, legacy serial cabling, test fixtures and panel-mounted interfaces.
The board includes two mounting holes sized for 4-40 screws, and documentation is available for the schematic, KiCad files and board dimensions.
Features:
- Female DE9/DB9 Connector
- 0.1in. Plated Through-Hole PTH Pins
- 2x Mounting Holes
Specifications:
- Connector: Female DE9/DB9
- Pin breakout: All nine pins
- Extra ground connections: Two
- Header spacing: 0.1in.
- Header type: Plated through-hole (PTH)
- Dimensions: 1.25in. x 0.9in. (31.75mm x 22.86mm)
- Mounting holes: Two
- Mounting screw compatibility: 4-40 screw
A simple hardware breakout for makers, repairers and engineers working with DE9/DB9 connectors in prototypes or permanent builds.
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- DE9/DB9
- A 9-pin D-shaped connector commonly used on older computer serial ports, industrial equipment, and test gear. The name matters because this breakout is specifically for wiring those nine connector pins into a breadboard or custom cable.
- PTH
- Plated through-hole means the pin holes are metal-lined so solder connects the pad on both sides of the board. It is useful for connectors and headers that need a strong mechanical and electrical connection.
- RS-232
- An older serial communication standard that uses higher signal voltages than modern microcontroller logic pins. If you are connecting this breakout to a microcontroller, you may need an RS-232 interface or level converter rather than wiring it directly.
Female DE9 Breakout Schematic
Schematic · 34.0 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 767.4 KB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
