The **BAS70G-AE3-R** is a specific surface-mount **Schottky Barrier Diode** known for its small footprint and high-speed switching capabilities. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Overview The BAS70 series is designed primarily for high-speed switching, circuit protection, and clamping applications. The "G" suffix typically denotes "Green" (Halogen-free), and "AE3" refers to the specific package type (SOT-23). ### 2. Technical Specifications | Parameter | Symbol | Value | Unit | |:---|:---:|:---:|:---:| | **Peak Repetitive Reverse Voltage** | $V_{RRM}$ | 70 | V | | **Forward Continuous Current** | $I_F$ | 70 | mA | | **Forward Voltage** (at $I_F = 1mA$) | $V_F$ | 410 (Max) | mV | | **Reverse Leakage Current** (at $V_R = 50V$) | $I_R$ | 100 | nA | | **Reverse Recovery Time** | $t_{rr}$ | < 5 | ns | | **Total Capacitance** (at $V_R = 0V, f = 1MHz$) | $C_T$ | 2 | pF | --- ### 3. Key Electronic Characteristics * **Low Forward Voltage:** Because it is a Schottky diode, it has a significantly lower forward voltage drop compared to standard PN junction diodes (e.g., 0.4V vs 0.7V). * **Ultrafast Switching:** The very low junction capacitance and minimal reverse recovery time ($t_{rr}$) make it ideal for high-frequency signals. * **Small Form Factor:** The **SOT-23** package is a standard 3-pin surface mount device (SMD), allowing for high-density PCB layouts. ### 4. Typical Applications 1. **Signal Clamping:** Protecting sensitive IC inputs from overvoltage. 2. **High-Speed Switching:** Used in digital logic circuits and RF mixers. 3. **Reverse Polarity Protection:** Protecting low-power battery-operated devices. 4. **Voltage Doublers:** Due to the low $V_F$, it is efficient in charge pump circuits. --- ### 5. Package and Marking The "AE3-R" suffix indicates the packaging and tape-and-reel details: * **Package:** SOT-23 * **Pins:** 3 (Usually one pin is NC or used for specific internal configurations like Common Anode/Cathode, though BAS70G is typically a single diode). * **RoHS Compliance:** Fully compliant and Halogen-free.