CURB205-G

Diodes - Rectifiers - Single: CURB205-G Application Field and Working Principle

The CURB205-G is a single contact rectifier diode capable of withstanding power dissipation up to 1.75W. Its operating temperature range is -55°C to +150°C, while its junction temperature range spans from -65°C to +175°C.

Application fields

Primarily, the CURB205-G is used for rectifying alternating current, due to its low forward voltage drop and its reverse leakage current being less than 0.5mA. As for its application field, this diode is a good candidate for usage in switching power supplies or battery chargers, DC-DC converters, polarity protection, and free-wheeling diodes.

Working principle

The CURB205-G uses a single-contact rectifier inside its package to achieve its AC conversion goal, in a fairly straightforward manner – when the AC power source is connected to the diode, the AC waveform is allowed to pass through it. When it is allowed to pass through the diode, the waveform is rectified, whereas it switches alternately between positive and negative polarity. This process results in the positive portions of the waveform being amplified and converted into a steady, directed DC current.

Naturally, the level of current and voltage depends on the configuration set by the user. Additionally, the CURB205-G’s unique design allows for ripple suppression at the output, ensuring a steady voltage and much higher efficiency.

Characteristics

The CURB205-G has a forward voltage drop of 0.7V at 100mA and 1.2V at 1A and a reverse capacitance of 15pF at 1KHz. Moreover, this diode offers a maximum reverse voltage (often referred to as “peak inverse voltage” or PIV) of 200V and a reverse recovery time of 0.2mS. Its maximum power dissipation (down to a temperature of 75°C and given an ambient temperature of 25°) is 1.75W and its surge power 5W.

Finally, this diode operates using a maximum working voltage of 200V and minimum forward current of 10μA at 25°C, allowing it to perform well even in extreme situations.