Ftd02p — Datasheet

All dimensions in millimeters (inches).

| Parameter | Conditions | Min | Typ | Max | Unit | | :--- | :--- | :--- | :--- | :--- | :--- | | Peak Reverse Current | ( V_R = V_RRM ), ( T_J=25^\circ C ) | - | - | 10 | µA | | Peak Reverse Current | ( V_R = V_RRM ), ( T_J=125^\circ C ) | - | - | 100 | µA | | Forward Voltage | ( I_F = 2.0A ), ( T_J=25^\circ C ) | - | 0.85 | 1.0 | V | | Reverse Recovery Time | ( I_F = 0.5A ), ( I_R = 1.0A ), ( V_R = 30V ) | - | 35 | 50 | ns |

Why Fast Recovery Matters: The 35–50ns reverse recovery time (( t_rr )) is the hallmark of this component. Standard rectifiers (like 1N400x series) have recovery times in microseconds. The Ftd02p’s nanosecond speed allows it to be used in switching power supplies (SMPS) and high-frequency inverters without excessive heat or voltage spikes. Ftd02p Datasheet

When driving inductive loads (relays, solenoids, small motors), the Ftd02p can serve as a flyback diode. Its fast response clamps the inductive kickback below the breakdown voltage.

Example Flyback Circuit:

      +12V
       │
       └───[Relay Coil]───┐
                         │
                       [Ftd02p]
                       Cathode at top
                         │
       └───────────────Anode
       │
      GND

Every datasheet begins with "Maximum Ratings" and "Electrical Characteristics." Here is a typical breakdown for an Ftd02p-class diode.

The FT02P is a low-power 2-channel relay module designed for microcontroller projects (such as Arduino, ESP32, or Raspberry Pi). It acts as an "electronic switch," allowing low-voltage logic circuits (3.3V or 5V) to control high-voltage appliances (like lights, fans, or motors) safely. All dimensions in millimeters (inches)

Unlike older relay modules that require significant current to operate, the FT02P utilizes a high-quality single-chip integrated solution. This allows it to be driven directly by MCU IO ports without the need for bulky transistors or optocouplers on the board, making it extremely compact.