Ftd02p Datasheet ◉

By respecting the , adhering to the 50ns recovery time for high-frequency designs, and watching the 100°C/W thermal resistance , you ensure a robust design whether you are repairing a 1990s switching power supply or building a custom flyback driver.

Circuit: In a flyback converter secondary winding, place the Ftd02p in series with the output capacitor. Its fast recovery ensures the diode turns off before the next switching cycle begins. When driving an inductive load (relay coil, solenoid), the magnetic field collapses when power is removed, generating a massive negative voltage spike (flyback voltage). Ftd02p Datasheet

Circuit: Connect the Ftd02p in across the relay coil (cathode to positive supply, anode to ground). The 30A surge rating handles the initial high-current spike without failure, protecting the driving transistor. C. Reverse Polarity Protection in DC Inputs For low-power DC devices (12V to 48V, <1A), the Ftd02p acts as a blocking diode. By respecting the , adhering to the 50ns

A ( t_rr ) of 50ns (or less) indicates the Ftd02p is a Fast Recovery Diode (not a standard 2-4µs rectifier). This makes it suitable for high-frequency switching circuits (e.g., SMPS output stages or flyback clamps). 3. Thermal and Mechanical Data A datasheet is useless if you don't know how to keep the part cool. Thermal Resistance | Parameter | Symbol | Value | Unit | | :--- | :--- | :--- | :--- | | Junction to Ambient (lead length 9.5mm on PCB) | ( R_\theta JA ) | 100 | °C/W | When driving an inductive load (relay coil, solenoid),