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...
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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 board carries a small or fine-pitched component and brings its connections out to standard, breadboard- and header-friendly pins. Describing a part as a breakout means it can be wired into a project without soldering directly to the component's tiny 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 it tells you the connector has nine pins in a D-shaped shell, so any cable, adapter, or breakout you pair with it must match that pinout.
- 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
- RS-232 is an older serial communication standard that uses higher, inverted signal voltages (typically around plus or minus 3 to 15 volts) rather than the low logic levels of modern microcontroller pins. When connecting RS-232 equipment to a microcontroller, you usually need an RS-232 transceiver or level converter rather than wiring it directly, or you risk damaging the pins.
- through-hole
- A mounting style where the component leads pass through holes in a circuit board and are soldered on the other side. Through-hole parts are often easier to handle and solder by hand, which is useful for classroom and hobby projects.
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
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