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2SK2158-T2B-AT-VB Product details
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Imagine you are designing a low-power IoT sensor node and need a small signal switch that can withstand 60V and be directly driven by 3.3V logic. Ordinary MOS transistors either have too high a threshold voltage to turn on or insufficient voltage withstand capability posing risks. VBsemi 2SK2158-T2B-AT-VB is designed for this—it combines 60V withstand voltage, 0.3A current capability, and a low on-resistance of 2800mΩ in a miniature SOT23-3 package, simplifying high-voltage signal switching and control circuits.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | 60V | 1.7V | 0.3A | 3100(mΩ) | 2800(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | 60V | 1.7V | 0.3A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N | 60V | 1.7V | 0.3A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-N |
- Voltage Rating 60V, suitable for industrial and automotive voltage domains
- Gate Drive Range ±20V, compatible with direct 3.3V/5V logic drive
- Threshold Voltage 1.7V, easily turned on with low-voltage control
- On-Resistance 2800mΩ (at 10V drive), extremely low loss for small currents
- Maximum Current 0.3A, meets signal switching and small load drive requirements
- Trench process technology, stable and reliable switching characteristics
- Gate Drive Range ±20V, compatible with direct 3.3V/5V logic drive
- Threshold Voltage 1.7V, easily turned on with low-voltage control
- On-Resistance 2800mΩ (at 10V drive), extremely low loss for small currents
- Maximum Current 0.3A, meets signal switching and small load drive requirements
- Trench process technology, stable and reliable switching characteristics
Domain and module applications：
Real-World Scenarios
- Sensor Signal Acquisition – Acts as an analog switch or level isolation transistor for reliable sampling of 60V high-side signals.
- Battery Management System (BMS) – Serves as a high-side switch for balancing circuits, with ample voltage withstand margin and microamp-level leakage that does not interfere with battery capacity detection.
- Industrial Control I/O Interface – Completes 24V/48V logic level conversion on PLC or industrial control boards, protecting the MCU low-voltage side.
- Smart Gateway/Router – Used for power rail sequencing or peripheral power enable, SOT23-3 package saves PCB area.
- LED Linear Constant Current Driver – Drives low-current LED strings, with on-resistance consistency ensuring uniform brightness across channels.
- Low-Voltage DC-DC Auxiliary Power Supply – Acts as a switch in startup circuits or soft-start loops, with voltage withstand margin to handle input surges.
- Portable Instruments – Used as a selection switch for battery voltage detection channels, ultra-low quiescent power consumption extends standby time. One-sentence summary: The 2SK2158-T2B-AT-VB is not just an ordinary MOS transistor; it is your 'miniature gatekeeper' and 'stable cornerstone' for high-voltage signal conditioning and low-power control.
* 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：
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