STMicroelectronics
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STF19NF20
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STF19NF20

Product Overview

Category: Power MOSFET
Use: Switching applications in power supplies, motor control, and other high current applications
Characteristics: High voltage, low on-resistance, fast switching speed
Package: TO-220FP
Essence: N-channel enhancement mode power MOSFET
Packaging/Quantity: Tube/50 units

Specifications

  • Voltage Rating: 200V
  • Continuous Drain Current: 19A
  • On-Resistance: 0.036Ω
  • Gate Threshold Voltage: 4V
  • Total Gate Charge: 30nC
  • Pulse Diode Forward Current: 76A
  • Operating Junction Temperature Range: -55°C to 175°C

Detailed Pin Configuration

  1. Gate (G)
  2. Drain (D)
  3. Source (S)

Functional Features

  • Low on-resistance for minimal power dissipation
  • Fast switching speed for efficient operation
  • High voltage rating for versatile applications

Advantages

  • Suitable for high current applications
  • Efficient switching performance
  • Wide operating temperature range

Disadvantages

  • Relatively high gate threshold voltage
  • Limited pulse diode forward current

Working Principles

The STF19NF20 is an N-channel enhancement mode power MOSFET that operates by controlling the flow of current between the drain and source terminals using the gate voltage. When a sufficient voltage is applied to the gate, the MOSFET allows current to flow, and when the gate voltage is removed, the current flow ceases.

Detailed Application Field Plans

  1. Power Supplies: Used for switching applications in various types of power supplies due to its high voltage rating and low on-resistance.
  2. Motor Control: Ideal for controlling the power to motors in industrial and automotive applications, thanks to its fast switching speed and high current capability.
  3. High Current Applications: Suited for use in circuits requiring high current handling capabilities, such as inverter systems and welding equipment.

Detailed and Complete Alternative Models

  1. STF17NF25: Similar specifications with a slightly lower voltage rating
  2. STF20NF20: Higher continuous drain current with comparable voltage rating
  3. STF16NF25: Slightly lower on-resistance and gate charge

In conclusion, the STF19NF20 is a high-performance power MOSFET suitable for a wide range of switching applications, offering a balance of high voltage capability, low on-resistance, and fast switching speed.

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Énumérez 10 questions et réponses courantes liées à l'application de STF19NF20 dans les solutions techniques

  1. What is STF19NF20?

    • STF19NF20 is a power MOSFET transistor designed for high-speed, high-voltage applications.

  2. What are the key specifications of STF19NF20?

    • The STF19NF20 has a maximum drain-source voltage of 200V and a continuous drain current of 19A.

  3. What are the typical applications of STF19NF20?

    • STF19NF20 is commonly used in switching power supplies, motor control, and other high-voltage, high-speed applications.

  4. What is the on-state resistance of STF19NF20?

    • The on-state resistance (RDS(on)) of STF19NF20 is typically around 0.09 ohms.

  5. What is the gate threshold voltage of STF19NF20?

    • The gate threshold voltage of STF19NF20 typically ranges from 2 to 4 volts.

  6. Is STF19NF20 suitable for automotive applications?

    • Yes, STF19NF20 is often used in automotive systems such as electronic power steering and transmission control.

  7. Can STF19NF20 be used in high-frequency applications?

    • Yes, STF19NF20 is designed for high-speed switching and can be used in high-frequency applications.

  8. Does STF19NF20 require a heat sink for thermal management?

    • Depending on the application and power dissipation, a heat sink may be necessary for optimal thermal management.

  9. What are the recommended operating conditions for STF19NF20?

    • STF19NF20 is typically operated within a temperature range of -55°C to 175°C and with a maximum junction temperature of 175°C.

  10. Are there any specific layout considerations when using STF19NF20 in a circuit?

    • It is important to minimize parasitic inductance and ensure proper gate driving to maximize the performance of STF19NF20 in a circuit.