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TK7A55D(STA4,Q,M)-VB Product details
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TK7A55D is a Single N-MOSFET deeply optimized for high-voltage power switching scenarios. The Planar process ensures stable switching characteristics and high reliability. The TO220F package strikes a good balance between heat dissipation capability and ease of insulated mounting. The combination of 650V drain-source voltage, 10A current capability, and 830mΩ on-resistance makes it a reliable choice for high-voltage applications such as industrial power supplies, home appliances, and auxiliary power, especially suitable for projects with strict 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: Suitable for 220V/380V industrial power grids and high-voltage DC-DC systems, providing ample voltage spike margin and significantly reducing avalanche breakdown risk.
VGS=±30V: Wide gate drive range, compatible with various PWM controllers and driver ICs, simplifying gate drive circuit design.
Vth=3.5V (typical): Moderate threshold voltage with strong anti-interference capability, suitable for applications requiring reliable turn-off in high-voltage switching.
RDS(on)=830mΩ @ VGS=10V: Low conduction loss, controlled temperature rise under full load; combined with TO220F fully insulated package, simplifies heat sink design.
ID=10A: Ample continuous current margin to meet steady-state and peak current requirements of main switches and auxiliary power supplies in high-voltage converters.
Package TO220F: Fully molded insulation structure, no additional insulation pad required, easy to install; also provides a good thermal path, suitable for PCB through-hole power stage design.
Domain and module applications：
Switching Power Supplies: High-voltage MOSFET acts as the main switch in flyback and forward topologies; 650V withstand voltage covers wide input voltage applications with high reliability.
Industrial Auxiliary Power Supplies: Wide voltage range and robust Planar technology adapt to scenarios with significant grid fluctuations, such as three-phase power and servo drives.
LED Lighting Drivers: Large voltage margin withstands inductive load turn-off spikes; works with constant current control for efficient and stable output.
Home Appliance Controllers: Suitable for motor drive and power sections in air conditioners, refrigerators, washing machines, etc.; insulated packaging simplifies safety layout.
Photovoltaic Inverter Auxiliary Circuits: Provides stable switching performance in high-voltage bus auxiliary power supplies, meeting long-term operation requirements.
AC-DC Adapters: Low conduction loss and good thermal performance improve full-load efficiency, aiding miniaturization and high power density design.
New Energy Charging Equipment: Performs excellently in high-voltage auxiliary power supplies and pre-charge circuits; wide safe operating area enhances system impact resistance. Selection Summary: TK7A55D achieves a balance between high-voltage withstand capability, current capacity, package reliability, and system cost. It is a cost-effective general-purpose choice for 650V voltage class power switches, especially suitable for industrial and consumer power supply projects with clear requirements for voltage margin, insulated mounting, and long-term reliability.
* 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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