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BUK9C1R3-40EJ-VB Product details
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Are you designing a high-power-density automotive power module with limited PCB space, yet needing to handle current surges up to 350A? Ordinary MOSFETs either suffer from high conduction losses or have limited heat dissipation due to their package. The VBsemi BUK9C1R3-40EJ-VB is designed for this — it integrates a 40V drain-source voltage, 350A current carrying capability, and an ultra-low on-resistance of 0.9mΩ into a TO263-7L high-current package, leveraging Trench technology to eliminate concerns about heat generation and voltage drop in high-power conversion designs.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| TO263-7L | Single-N | 40V | 3V | 350A | 0.9(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| TO263-7L | Single-N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| TO263-7L | Single-N | 40V | 3V | 350A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO263-7L | Single-N | 40V | 3V | 350A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO263-7L | Single-N |
Voltage 40V, covering low-voltage high-current applications
Gate drive range ±20V, compatible with multiple drive levels
Threshold voltage 3V, clear and stable switching characteristics
On-resistance 0.9mΩ (at 10V drive), extremely low loss, lower temperature rise
Maximum current 350A, meeting high power density requirements
Package TO263-7L, balancing heat dissipation and current capacity
Domain and module applications：
Automotive Electronics/Vehicle DC-DC Converters – Acts as the main power switch, significantly reducing conduction losses and improving overall vehicle power conversion efficiency.
Power Tool Battery Packs/Protection Boards – Fast shutdown in high-current charge/discharge circuits, effectively protecting battery cells and extending battery life.
Server Power Supplies/Communication Power Supplies – Utilizes ultra-low on-resistance to reduce heat buildup and increase module power density.
Motor Drives/Drone ESCs – Withstands high current surges, providing smooth high-power output and enhancing system reliability.
Energy Storage Inverters/MPPT Controllers – Achieves efficient switching on the low-voltage, high-current side, improving solar or battery energy utilization.
Industrial Power Supplies/Lithium Battery Charge/Discharge Modules – Paired with TO263-7L package, simplifies thermal design and adapts to harsh operating environments. One-sentence summary: BUK9C1R3-40EJ-VB is not an ordinary MOS tube; it is the 'low-loss channel' and 'reliable cornerstone' of your low-voltage, high-current power system.
* 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
