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BUK9275-100A-VB Product details
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BUK9275-100A-VB is a Single N-MOSFET optimized for medium-voltage power switching applications. The Trench process achieves a good balance between conduction loss and switching speed. The TO252 (DPAK) package offers excellent heat dissipation capability with a compact footprint. With a 100V drain-source voltage rating, 40A continuous drain current, and 30mΩ on-resistance, it is a reliable choice for DC-DC converters, motor drives, and battery protection applications, particularly suited for industrial and automotive systems requiring high power density and thermal stability.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 100V | 1.8V | 40A | 35(mΩ) | 30(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 100V | 1.8V | 40A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| TO252 | Single-N | 100V | 1.8V | 40A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| TO252 | Single-N | MOS |
VDS=100V: Suitable for 24V/48V/60V systems, providing ample voltage margin for spikes and reducing avalanche breakdown risk.
VGS=±20V: Compatible with 4.5V~12V logic levels, allowing direct connection to MCU/PMIC or traditional driver circuits for design flexibility.
Vth=1.8V (typical): Low threshold voltage ensures effective conduction even with 4.5V gate drive, compatible with low-voltage control signals.
RDS(on)=30mΩ @ VGS=10V (typical): Low on-resistance significantly reduces full-load losses, minimizing heatsink size and PCB copper area requirements.
RDS(on)=35mΩ @ VGS=4.5V: Maintains low impedance under low-voltage drive conditions, improving light-load and standby efficiency.
ID=40A: Ample continuous current capability to handle transient high-current events such as motor stall and capacitor charging.
Package TO252: Mature DPAK package with low thermal resistance and reliable soldering, suitable for automated assembly and high-power-density layouts.
Domain and module applications：
DC-DC Converters: Replaces Schottky diodes in synchronous rectification and boost topologies, significantly improving heavy-load efficiency and facilitating module miniaturization.
Motor Drive Control: 100V rating covers most low-voltage servo and brushless DC motor solutions, with low PWM switching losses and controllable controller temperature rise.
Battery Protection and Management: Fast switching characteristics suit overcurrent/short-circuit protection circuits, while low internal resistance reduces self-heating on the protection board.
Automotive Auxiliary Power Supplies: Wide safe operating area and strong avalanche ruggedness suit 12V/24V automotive bus and transient overvoltage environments.
Industrial Power Modules: High current capability and low on-resistance meet stringent thermal design requirements for communication base stations, server power supplies, etc.
Power Tools and Garden Machinery: Withstands high load currents and frequent start-stop shocks; TO252 package facilitates overall thermal design.
High-Power LED Lighting Drivers: Low on-state voltage drop reduces constant current losses, supporting stable operation in high ambient temperatures.
Selection Summary: BUK9275-100A-VB achieves a balanced configuration in voltage rating, current capability, on-resistance, and package thermal performance. It is a cost-effective and performance-competitive medium-voltage power switch solution for the 100V voltage platform, especially suitable for engineering applications with clear requirements for reliability, heat dissipation, and current margin.
* 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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