K2718 is one of the types of MOSFETs and is a kind of transistor.
Part Number: 2SK2718
Function: Silicon N Channel MOSFET
Package: TO-220 Type
Manufacturer: Toshiba
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Description
The K2718 is a high-voltage N-channel MOSFET designed for power switching applications, featuring a 900V drain-source rating and 2.5A current capability in a robust package. It offers moderate RDS(ON), high forward transfer admittance, and low leakage current, making it suitable for efficient high-voltage operation. This device is commonly used in DC-DC converters, motor drives, and other high-voltage switching circuits.
Features
- High drain-source voltage rating up to 900V
- Low RDS(ON) of approximately 5.6Ω (typ.)
- High forward transfer admittance |Yfs| of 2.0S (typ.)
- Low leakage current IDSS up to 100µA at high voltage
- Enhancement mode operation with Vth between 2.0V and 4.0V
- Suitable for high-voltage switching applications
Pinout
Design Notes
- High RDS(ON) compared to low-voltage MOSFETs requires careful efficiency consideration
- Gate drive voltage should be sufficiently high to fully enhance the device
- Suitable for high-voltage applications but switching losses must be evaluated
- Ensure proper heat sinking for sustained operation near maximum power
- Avalanche rating allows limited inductive load handling without external protection
Absolute Maximum Ratings (Tc = 25 °C)
| Parameter | Symbol | Value | Unit |
| Drain-Source Voltage | VDSS | 900 | V |
| Drain-Gate Voltage | VDGR | 900 | V |
| Gate-Source Voltage | VGSS | ±30 | V |
| Drain Current | ID | 2.5 | A |
| Power Dissipation | PD | 40 | W |
| Single Pulse Avalanche Energy | EAS | 216 | mJ |
How to Choose This Part
- Select for high-voltage applications requiring up to 900V blocking capability
- Suitable for moderate current switching applications
- Evaluate conduction losses due to relatively high RDS(ON)
- Ensure compatibility with available gate drive circuitry
- Consider switching frequency and thermal constraints
Applications
- DC-DC converters
- Motor drive systems
- Switch-mode power supplies
- Industrial power control circuits
- High-voltage switching systems
Alternative / Equivalent Products
- STP9NK90Z 900V N-channel MOSFET
- FQP9N90C high-voltage MOSFET
- IRF840 500V MOSFET for lower voltage applications
- TK10A90D super junction MOSFET
- IXTP2N100D high-voltage MOSFET alternative
K2718 Datasheet
