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SQ3481EV-T1_BE3-VB Product details
Back to previous pageProduct introduction：
SQ3481EV-T1_BE3-VB is a Single P-MOS deeply optimized for low-voltage power switch scenarios. Trench technology balances low switching loss and high reliability, and the SOT23-6 package strikes a balance between heat dissipation and board area. The combination of 30V voltage rating, 4.8A current capacity, and 49mΩ on-resistance makes it an ideal cost-reduction upgrade option to replace traditional DPAK or SOP-8 packaged devices, especially suitable for high-density, high-volume applications.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -30V | -1.7V | -4.8A | 54(mΩ) | 49(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -30V | -1.7V | -4.8A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -30V | -1.7V | -4.8A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P |
Key Selection Criteria
VDS=-30V: Suitable for 5V/12V/24V systems, providing sufficient negative voltage spike margin and reducing avalanche breakdown risk.
VGS=±20V: Compatible with 1.8V~12V logic levels, can directly interface with MCU/PMIC, eliminating level-shifting circuits.
Vth=-1.7V (Typical): Fully turns on even with low gate drive, ideal for battery voltage decay scenarios.
RDS(on)=49mΩ @ VGS=10V: Low on-resistance significantly reduces temperature rise under full load, minimizing required copper area for heat dissipation.
ID=-4.8A: Ample continuous current margin to handle peak demands of most portable and automotive auxiliary loads.
Package SOT23-6: Small footprint, low parasitic parameters, supports high-frequency switching, saving PCB area and assembly cost.
VDS=-30V: Suitable for 5V/12V/24V systems, providing sufficient negative voltage spike margin and reducing avalanche breakdown risk.
VGS=±20V: Compatible with 1.8V~12V logic levels, can directly interface with MCU/PMIC, eliminating level-shifting circuits.
Vth=-1.7V (Typical): Fully turns on even with low gate drive, ideal for battery voltage decay scenarios.
RDS(on)=49mΩ @ VGS=10V: Low on-resistance significantly reduces temperature rise under full load, minimizing required copper area for heat dissipation.
ID=-4.8A: Ample continuous current margin to handle peak demands of most portable and automotive auxiliary loads.
Package SOT23-6: Small footprint, low parasitic parameters, supports high-frequency switching, saving PCB area and assembly cost.
Domain and module applications：
Decision Value Analysis
Portable Device Power Management: Low internal resistance improves load switch efficiency, extends battery life, and small package enables ultra-thin designs.
Battery Protection Module: Fast response ensures microsecond-level shutdown during overcurrent/short circuit, low internal resistance reduces self-heating of the protection board.
Low-Voltage Motor Drive: Low PWM switching loss, smoother motor operation, significantly lower controller temperature rise.
Consumer Electronics Control Module: Logic-level direct drive simplifies peripherals, suitable for high-volume, low-cost products like smart sockets and USB switches.
LED Lighting Drive: Low on-voltage drop reduces constant current source power consumption, supports multi-channel parallel connection, improving overall luminaire efficacy.
DC-DC Converter: Replaces Schottky diodes in synchronous rectification, improving heavy-load efficiency by 2-3%, facilitating module miniaturization.
Automotive Auxiliary Power: Voltage margin and wide operating temperature range adapt to 12V automotive bus, high reliability. Selection Summary: SQ3481EV-T1_BE3-VB achieves a balance between performance margin, package size, and system cost, making it a cost-effective general-purpose choice for -30V low-voltage P-channel switching applications, especially suitable for projects with strict space and thermal requirements.
* 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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