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CS3N80FA9R-VB Product details
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Imagine this: You are designing a high-voltage auxiliary power supply or industrial control module, with a system bus voltage as high as 800V, but you need a reliable, easy-to-use, and cost-effective switching transistor. Ordinary low-voltage MOSFETs cannot withstand such high voltage, while high-voltage devices often have complex drive requirements and high losses. VBsemi CS3N80FA9R-VB is designed for this—it integrates 800V voltage tolerance, 4A current capacity, and stable on-resistance characteristics into a TO220F fully isolated package, making high-voltage power supply design simpler and safer.
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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 | 800V | 3.5V | 4A | 1440(mΩ) | 1800(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 | 800V | 3.5V | 4A | Planar |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO220F | Single-N | 800V | 3.5V | 4A | Planar |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO220F | Single-N |
- Voltage 800V, easily handles high-voltage buses and surge impacts
- Gate drive range ±30V, compatible with common PWM controllers and driver ICs
- Threshold voltage 3.5V, logic-level drive friendly, clear switching characteristics
- On-Resistance: 1440mΩ at 4.5V drive, 1800mΩ at 10V drive, balanced loss performance in a high-voltage device
- Max current 4A, suitable for small to medium power high-voltage switching applications
- Uses planar gate technology, high reliability, strong immunity to lightning and ESD
- TO220F fully insulated package, no need for additional insulating washers, easier heat dissipation and installation
- Gate drive range ±30V, compatible with common PWM controllers and driver ICs
- Threshold voltage 3.5V, logic-level drive friendly, clear switching characteristics
- On-Resistance: 1440mΩ at 4.5V drive, 1800mΩ at 10V drive, balanced loss performance in a high-voltage device
- Max current 4A, suitable for small to medium power high-voltage switching applications
- Uses planar gate technology, high reliability, strong immunity to lightning and ESD
- TO220F fully insulated package, no need for additional insulating washers, easier heat dissipation and installation
Domain and module applications：
Real-World Scenarios
- Switching Power Supply / Flyback Converter – Used as the main switch tube in auxiliary power supplies with 220V AC input or high-voltage DC input, stable and reliable.
- LED Street Light / Industrial Lighting Driver – Undertakes switching actions in high-voltage constant current topologies, with large voltage margin to enhance system lifespan.
- Charging Pile Auxiliary Power Supply / New Energy Controller – Handles wide voltage input and harsh grid environments, providing robust power conversion.
- White Goods and Industrial Frequency Converters – Used for high-voltage bus pre-charging, discharging, or auxiliary power supply, simplifying high-voltage side circuit design.
- Low-power Inverter / Photovoltaic Optimizer – Achieves efficient on-off switching on the high-voltage side, paired with mature control schemes to reduce system costs.
- Smart Meter / Industrial Instrument Power Supply – Tolerates grid fluctuations, ensuring switching consistency over long-term operation. One-sentence summary: CS3N80FA9R-VB is not an ordinary MOS tube; it is your 'voltage guardian' and 'stability champion' for high-voltage auxiliary power supplies and industrial switching applications.
* 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
Technical support：
* If you have any questions about the product, please fill out the form to submit, we will reply you within 24 hours
