The BAV99 is a dual series switching diode with two diodes in series in a small SMD package.
What is BAV99 Diode
The BAV99 is a dual series switching diode with two diodes in series in a small SMD package. The SOT-23 package has these pins, you can access the anode and cathode of diode 1 and diode 2, respectively, and the point of connecting the diode in series, as shown in the BAV99 pin diagram below. The diode has a forward current of 250mA and can withstand peak reverse voltages up to 100V, making it ideal for protection and switching applications.
This double package allows designers to package two diodes in a smaller space, saving PCB space and cost. Because they are connected in series, they can be used directly in applications that require series diodes, such as when protecting the microcontroller’s input GPIO pins.
BAV99 Pinout &Configuration
BAV99 has three terminals, as shown in the table.
|Pin Number||Pin Name||Description|
|1||Diode 1 Anode||Anode pins of 1st Diode|
|2||Diode 2 Cathode||Cathode pin of 2nd Diode|
|3||Diode 1 CathodeDiode 2 Anode||Cathode pin of 1st Diode and Anode pin of 2nd Diode|
- Dual in Series High Speed Switching Diode
- Forward Current: 250mA
- Average Forward Current: 150mA
- Repetitive Peak Reverse Voltage: 70V
- Non Repetitive Peak Voltage: 100V
- Available in SOT-23 SMD Package
- Marking on SMD: JE
BAV99 Equivalent diode
- Through hole version of BAV99: Two 1N4148 in series
- Alternative for BAV99: BAV70, BAW56, MMBD1503
How does a BAV99 diode work?
The BAV99 is an SMD Dual Diode and is available in SOT-23 Package, the dimension of the SOT-23 Package is shown below which should help you building the footprint for your PCB.
- General purpose Switching
- High Speed Switching
- Reverse Polarity Protection
- Clipping or Clamping Circuits
- Protection circuits
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