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TK8A50D(STA4,Q,M)-VB Product details
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TK8A50D is a Single N-MOSFET deeply optimized for high-voltage switching power supplies and power conversion applications. The Planar process achieves a good balance between voltage withstand reliability and on-resistance characteristics. The TO220F fully insulated package facilitates easy insulation mounting and simplifies heat dissipation design. The combination of 650V drain-source voltage, 10A current capability, and 830mΩ on-resistance makes it a robust choice for AC-DC primary side, PFC circuits, and industrial auxiliary power supplies, especially suitable for applications with clear requirements for voltage margin and system safety.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| TO220F | Single-N | 650V | 3.5V | 10A | 830(mΩ) | Planar |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| TO220F | Single-N | Planar |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| TO220F | Single-N | 650V | 3.5V | 10A | Planar |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO220F | Single-N | 650V | 3.5V | 10A | Planar |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO220F | Single-N |
VDS=650V: Covers the bus voltage after 220V AC rectification and flyback spikes, providing sufficient voltage margin and reducing avalanche breakdown risk.
VGS=±30V: Wide gate drive voltage range, compatible with various PWM controllers and driver ICs, reducing the probability of false triggering damage.
Vth=3.5V (typical): Moderate threshold voltage with strong anti-interference capability; can stably enter the low on-resistance region with standard 10V~15V drive.
RDS(on)=830mΩ @ VGS=10V: Typical on-resistance level for high-voltage devices, effectively balancing loss and heat dissipation with TO220F package.
ID=10A: Ample continuous current margin to handle transient high-current surges during startup and short circuits in switching power supplies.
Package TO220F: Fully molded isolation structure, can be directly mounted on a heatsink without additional insulation pads, facilitating production assembly and thermal management.
Domain and module applications：
Switching Power Supplies (SMPS): High-voltage Planar MOSFET performs robustly in hard-switching topologies, suitable for flyback, forward, and half-bridge architectures.
AC-DC Adapters/Chargers: 650V withstand voltage handles wide input voltage; low junction capacitance reduces switching losses, improving average efficiency.
LED Lighting Driver Power Supplies: Used in active PFC or high-voltage constant current circuits; ample voltage margin enhances reliability, reducing light decay and failure rates.
Industrial Auxiliary Power Supplies: Adapts to harsh grid environments like underground or outdoor; wide gate voltage tolerance improves drive compatibility.
Photovoltaic Inverter Auxiliary Power Supplies: In high-voltage DC bus power extraction scenarios, has good surge tolerance, simplifying startup circuit design.
Induction Cooker/Home Appliance Power Boards: Flexible selection for high-voltage power switches; TO220F package facilitates automated insertion and wave soldering, suitable for mass production. Selection Summary: TK8A50D, with its core advantages of 650V withstand voltage, 10A current capability, and TO220F isolated package, provides robust thermal and electrical performance in high-voltage switching applications. It is a general-purpose, high-reliability choice for medium and low-power power modules and industrial control products, particularly suitable for projects with strict requirements for voltage safety and assembly efficiency.
* Please note: the above is only an example application scenario, the specific application depends on the requirements and conditions of the system design. When using this device, consult its data sheet for detailed technical specifications and features
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