Transistor K2761

Description of Transistor K2761 :

The K2761 (commonly known as 2SK2761) is a high-speed N-Channel Power MOSFET designed primarily for high-voltage switching applications. Manufactured by renowned semiconductor brands such as Toshiba and its equivalents, this MOSFET is optimized for use in power electronics circuits that require high-efficiency switching, low on-resistance, and excellent voltage handling capabilities. It comes in a TO-220 or TO-3P package, which provides effective heat dissipation, allowing the device to handle significant amounts of current and voltage without thermal breakdown.

With a Drain-Source voltage (Vds) of 600V and a continuous drain current (Id) of up to 10A, the K2761 is suitable for medium to high power applications where reliable and efficient switching is critical. The MOSFET utilizes an advanced planar stripe design that minimizes gate charge and conduction losses, making it highly efficient in high-speed switching circuits.

Uses of Transistor K2761:

1. Switch Mode Power Supplies (SMPS):

   • The K2761 is widely used in SMPS circuits where fast and efficient switching of high voltages is required. Its low gate charge and fast switching speed help improve the efficiency of power converters.

2. Motor Control Circuits of Transistor K2761:

   • This MOSFET is used in DC motor drivers and inverters for industrial and consumer applications. Its high voltage and current handling capability make it ideal for controlling motors with precise switching control.

3. UPS (Uninterruptible Power Supplies):

   • The K2761 is often employed in UPS systems for switching operations and voltage regulation. Its robustness ensures stability during load changes.

4. Inverter Circuits of Transistor K2761:

   • It is commonly used in solar inverters, general-purpose inverters, and induction heating systems, where high voltage switching is essential.

5. High Voltage DC-DC Converters:

   • The transistor’s high Vds rating makes it suitable for DC-DC boost converters that require voltage step-up operations.

6. Lighting Ballasts of Transistor K2761:

   • Electronic ballast circuits for HID and fluorescent lighting often use the K2761 for its reliable high-frequency switching.

7. Inductive Load Switching:

   • The transistor is suitable for switching inductive loads like solenoids, relays, and transformers due to its rugged avalanche energy handling capability.

Key Features of Transistor K2761:

1. High Voltage Capability (600V Vds):

   • With a Drain-Source voltage of up to 600V, the K2761 can be used in circuits that require safe operation under high voltage conditions, making it ideal for power supply and inverter applications.

2. Low On-Resistance (Rds(on)):

   • The device features a low Rds(on), which results in reduced conduction losses and higher efficiency during operation. This is crucial for minimizing heat generation in power circuits.

3. High-Speed Switching of Transistor K2761 :

   • The K2761 is optimized for fast switching applications, reducing switching losses and enabling higher frequency operations. This feature is beneficial in SMPS and PWM motor control applications.

4. Low Gate Charge (Qg):

   • The reduced gate charge ensures that the MOSFET can be driven by low-power gate drivers, allowing for faster response times and lower power consumption in control circuits.

5. Avalanche Ruggedness of Transistor K2761:

   • It is designed to withstand avalanche conditions, making it robust against voltage spikes and inductive kickbacks, which is essential in circuits driving inductive loads.

6. Efficient Thermal Performance (TO-220/TO-3P Package):

   • The transistor comes in a TO-220 or TO-3P package with an efficient heat dissipation structure, supporting higher current handling and enhancing reliability.

7. Enhanced Safe Operating Area (SOA):

   • The K2761 is designed with an extended SOA, allowing it to operate safely across a wide range of voltage and current levels, which is crucial in demanding power applications.

8. Reliability and Durability of Transistor K2761:

   • Manufactured with strict quality controls, the K2761 offers high reliability under continuous operation, making it suitable for industrial-grade applications.

Why Choose K2761?

The K2761 stands out for its combination of high voltage tolerance, low conduction and switching losses, and excellent ruggedness. Its reliable thermal and electrical performance makes it a go-to choice for engineers designing high-efficiency power conversion systems, motor drives, and inverter circuits. Whether it’s for industrial automation or consumer electronics, the K2761 ensures robust operation with minimal energy losses, which translates into lower heat management costs and longer system lifespans.

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