Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| DFN8(3X3) |
Single-P |
-40V |
|
-2V |
-45A |
|
13(mΩ) |
12(mΩ) |
Trench |
| VB Package |
Configuration |
VCE |
VGE |
VGEth(V) |
VCEsat15V |
ICE |
Technology |
| DFN8(3X3) |
Single-P |
|
|
|
|
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds18 |
Technology |
| DFN8(3X3) |
Single-P |
-40V |
|
-2V |
-45A |
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds6 |
Technology |
| DFN8(3X3) |
Single-P |
-40V |
|
-2V |
-45A |
|
Trench |
| VB Package |
Polarity |
Vz / VR |
Pd |
VF |
IF |
IR |
Cd |
Type |
| DFN8(3X3) |
Single-P |
|
|
|
|
|
|
|
- Voltage Rating: -40V, suitable for various negative voltage power supplies and battery protection scenarios
- Gate Drive Range: ±20V, compatible with multiple level drive circuits
- Threshold Voltage: -2V, friendly for logic level drive
- On-Resistance: 12mΩ (at 10V drive), extremely low losses; only 13mΩ at 4.5V drive
- Maximum Current: -45A, excellent high current carrying capability
- Utilizes Trench technology for excellent switching performance and conduction characteristics
- Package: DFN8(3X3), saves PCB space, beneficial for heat conduction
Domain and module applications：
- Lithium Battery Protection Board – As the main switch on the negative voltage side, it quickly turns off during overcurrent/short circuit, protecting battery cell safety.
- Motor Drive Module – Low on-resistance reduces heat generation, suitable for DC brushed motors and power tool control.
- Reverse Polarity Protection – Utilizes P-channel characteristics for low-loss reverse polarity protection, replacing traditional diode solutions.
- Load Switch – Precisely controls on/off in negative voltage power distribution systems, reducing standby power consumption.
- DC-DC Converter – Suitable for synchronous rectification or negative voltage topologies, improving overall conversion efficiency.
- Automotive Electronics/Industrial Control – Withstands -40V negative voltage fluctuations, providing stable power supply for sensors and actuators. In a nutshell: BUK6Q12-40PJ-VB is not an ordinary P-MOS; it is your 'low-loss switch' and 'space optimization expert' in negative voltage, high-current designs.
* 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
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