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What is a MOSFET? PANJIT Technology Applications for Engineers

What is a MOSFET? PANJIT Technology Applications for Engineers

MOSFETs on a blue background. Learn more about MOSFETs and Panjit at Sourcengine.

The MOSFET (Metal Oxide Semiconductor Field Effect Transistor) transistor is a semiconductor device which is widely used for switching and amplifying electronic signals in the electronic devices. MOSFETs are all about Voltage. The MOSFET is a core of integrated circuit and it can be designed and fabricated in a single chip because of these very small sizes.  The MOSFET is a four-terminal device with source(S), gate (G), drain (D) and body (B) terminals. The body of the MOSFET is frequently connected to the source terminal so making it a three-terminal device like field effect transistor. The MOSFET is very far the most common transistor and can be used in both analog and digital circuits.

Here is a detailed explanation on what MOSFETs are and how to use them:

PANJIT offers wide range of MOSFET in various circuit configurations and package, featuring high speed, high performance, low resistance, and small packaging, which enables designer to select an optimized device for terminal application. MOSFETs is an important device utilized in varies field and applications, i.e. notebook, tablet, monitor, motherboard,handsets etc.

Each of application in MOSFETs has different characteristics to satisfy the circuit design. Furthermore, PANJIT has also categorized the MOSFET into 3, Low Voltage MOSFET, Medium Voltage MOSFET and Power MOSFET respectively, which provide a wide range of package and a variety of advance structure to meet the market demand. In order to decrease the RDS (ON) and gate charge, PANJIT is devoted to not only an advanced high-density cell design, but also the trench structure on the devices. Therefore, when applying the devices on a synchronous-rectification DC/DC converter, the losses on power dissipation and switching are lower than usual.

MOSFETs used in applications


  • High speed switching
  • Low RDS (ON)
  • Small package size
  • Advanced Trench technology


  • PC & Tablet
  • Motherboard
  • Monitor
  • Communication
  • Lighting
Low voltage MOSFET specifications and series

PANJIT develops a series of low-voltage MOSFET products in different packages; BVDSS20V ~ 50V is suitable for notebook, tablet PCs, motherboards and other 3C products; by combining the Trench structure wafer and packaging technology, the product can provide low on-resistance and improve product performance.

Shop for PANJIT Low Voltage MOSFETs here: PJA34, PJS64, PJS68, PJC74, PJE84, PJQ19

Medium voltage MOSFET specifications and series

PANJIT's Medium Voltage MOSFET has BVDSS 60V ~ 200V and uses Trench technology to improve the product characteristic; the Medium Voltage MOSFET is often used for synchronous rectification circuit and mainly used in consumer electronic products such as power supplies, telecommunications power systems.

Shop for PANJIT Medium Voltage MOSFETs here: PJD, PJQ54, PJL94, PJW

High voltage MOSFET specifications and series

Apart from using advance high-performance cellular density designing, PANJIT's Power MOSFET products have lower conduction losses and switching losses.

BVDSS 400 ~ 1000V can be used for AC-DC power supply in chargers, home appliances, industrial equipment and a variety of LED lighting equipment; in addition, to ensure the product performance, PANJIT has 100% tested the Avalanche Energy.

To learn more about PANJIT products, download data sheets and see detailed product specifications, sign up for a Sourcengine account

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