## BAV99G-AE3-R: Technical Overview The **BAV99G-AE3-R** is a high-speed switching diode in a common cathode/anode configuration, typically housed in a small surface-mount package (SOT-23). It consists of two diodes connected in series. --- ### 1. Key Technical Specifications | Parameter | Symbol | Typical Value | | :--- | :--- | :--- | | **Configuration** | - | Dual Series Diode | | **Reverse Voltage (Peak)** | $V_{RRM}$ | 100V | | **Forward Current (Continuous)** | $I_F$ | 215mA | | **Reverse Recovery Time** | $t_{rr}$ | 4ns | | **Forward Voltage Drop** | $V_F$ | 1.25V @ 150mA | | **Capacitance** | $C_D$ | 1.5pF | | **Package Type** | - | SOT-23 | --- ### 2. Internal Configuration The BAV99 features a **Series Configuration**. In a 3-pin SOT-23 package, the internal layout is as follows: * **Pin 1:** Anode of Diode 1. * **Pin 2:** Cathode of Diode 2. * **Pin 3:** Cathode of Diode 1 and Anode of Diode 2 (Common Connection). --- ### 3. Application Areas Because of its high switching speed and low capacitance, the BAV99G is widely used in: 1. **ESD Protection:** Acting as a "clamping diode" to protect sensitive IC inputs from overvoltage transients. 2. **Signal Switching:** High-speed switching in digital and analog circuits. 3. **Reverse Polarity Protection:** Protecting small-signal circuits from incorrect battery insertion. 4. **Rectification:** Small-scale AC to DC conversion for low-power signals. --- ### 4. Part Number Breakdown (UTC/Typical Naming) * **BAV99:** Base part number for dual series high-speed diodes. * **G:** Usually denotes "Halogen Free" or Green material compliance. * **AE3:** Often corresponds to the **SOT-23** package type in UTC nomenclature. * **R:** Indicates **Tape & Reel** packaging for automated assembly. ---