NP89N04NUK-S18-AY

The NP89N04NUK-S18-AY is a single N-Channel MOSFET which signifies an insulated-gate field effect transistor (IGFET). It is a voltage-controlled, unipolar transistor used as an electronically-controlled switch. Its main purpose is to primarily increase the switching speed and reduce the power dissipation. This transistor can be found in many common applications, including power supplies and DC-DC step down converters, Class D amplifiers and audio amplifiers, LEDs/LCDs/OLEDs and automotive HVAC systems.

NP89N04NUK-S18-AY Application Field

One major application area for the NP89N04NUK-S18-AY transistor is in DC-DC converter circuits. In such cases, this MOSFET can replace traditional power MOSFETs, which have relatively high on-resistance and gate drive requirements. This device is also suitable for use in high frequency inverters and power supplies. In such cases, it efficiently reduces the gate drive requirements, compared to an equivalent bipolar transistor, leading to improved overall efficiency. In addition, this device is also suitable for use as an enhancement mode MOSFET in some switching applications.

NP89N04NUK-S18-AY Working Principle

The NP89N04NUK-S18-AY transistor works on the principle of voltage-controlled unipolar transistor. It comprises of three main terminals which are the source, gate, and drain. The source is a single terminal that is connected to the negative terminal of the power supply. The gate and drain are connected to the positive terminal of the power supply. When the gate terminal is left open, the switch is off. When the gate terminal is connected to the positive supply voltage, it modulates the conductivity between the source and drain and turns on the switch.

Under normal circumstances, the channel resistance of the NP89N04NUK-S18-AY is very low, leading to a high level of current conduction from the drain to the source. This high-conductivity is beneficial under normal operations as it minimizes the loss of power due to the overhead voltage rating of the power supply. For applications where a large amount of load current is required, using this device can substantially improve the efficiency of the overall circuit.

Conclusion

The NP89N04NUK-S18-AY is a single N-Channel MOSFET, a voltage-controlled, unipolar transistor used as an electronically-controlled switch. Its main purpose is to primarily increase the switching speed and reduce the power dissipation. It is frequently used in such applications as DC-DC converters, high frequency inverters, power supplies, Class D amplifiers, audio amplifiers, LEDs/LCDs/OLEDs, and automotive HVAC systems. This device works on the principle of voltage-controlled unipolar transistors, with the channel resistance under normal operating conditions being very low. As such, it is capable of providing high switching speeds and improved overall efficiency, making it an ideal choice for many applications.