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Product Advantage ▼
The PBSS5350Z SOT-223 PNP BJT delivers efficient medium-power switching performance for low-voltage circuits, supported by outstanding electrical parameters. Its core competitive strengths are detailed as follows:
1. 300mV Ultra-Low Collector-Emitter Saturation Voltage
This low VCEsat PNP transistor only has 300mV saturation voltage under full 3A load. Minimal conduction loss cuts thermal output significantly, greatly improving energy efficiency of battery-powered devices like power banks and wearable gadgets, extending their continuous working time.
2. High Continuous & Peak Collector Current Bearing Capacity
Rated with 3A steady collector current and matched peak pulse current tolerance, this medium power PNP transistor reliably drives inductive loads such as small relays and miniature DC motors. It avoids breakdown risk caused by instantaneous startup surge current in smart home control circuits.
3. Stable High hFE=200 Current Gain Under Heavy Current Load
Even at maximum 3A collector current, this bipolar junction transistor maintains minimum 200 DC current gain. It only needs tiny base drive signal from MCU pins, eliminating extra signal amplification circuits and simplifying PCB peripheral circuit design for OEM manufacturers.
4. High Energy Efficiency Reduces Overall Equipment Heat Generation
Combining low saturation voltage and low leakage current of 100nA Icbo, the transistor minimizes invalid power loss during switching operation. Less heat buildup removes the need for extra heat sinks on slim PCB layouts, lowering overall product thermal design cos.
Technical Parameters ▼
Parameter Item Specification Value
Product Category | Bipolar Junction Transistor (BJT) |
|---|---|
Transistor Type | Single PNP Transistor |
Continuous Collector Current (Ic) | 3 A |
Collector-Emitter Breakdown Voltage (Vceo) | 50 V |
Max Power Dissipation (Pd) | 1.35 W |
DC Current Gain (hFE) | 200 |
Transition Frequency (fT) | 100 MHz |
Collector Cut-off Current (Icbo) | 100 nA |
Collector-Emitter Saturation Voltage (VCE(sat)) | 300 mV |
Emitter-Base Breakdown Voltage (Vebo) | 6 V |
Product Uses ▼
With low saturation voltage and high current gain, PBSS5350Z PNP BJT is widely used in medium-power low-voltage electronic circuits:
1. DC/DC High-Frequency Conversion Circuits for Power Management
This low VCEsat PNP transistor acts as core switching tube of small DC-DC step-down converters. Its 100MHz transition frequency ensures stable high-frequency energy conversion, cutting thermal loss for IoT sensor boards and handheld portable power supply equipment.
2. Power Supply Line Switching & Lithium Battery Charger Circuits
Installed as power on-off control switch for power input ports of power banks and wearable chargers. Low collector cut-off leakage current minimizes standby power waste, extending battery life of all lithium-powered portable consumer electronics.
3. LDO Linear Voltage Regulation Circuits
Serves as adjustment transistor inside miniature linear LDO power modules. The stable 200 hFE high current gain simplifies peripheral drive design, providing steady low-noise output voltage for MCU control and weak signal processing circuits.
4. Low-Voltage LED & Lamp Peripheral Driver Circuits
Used for constant-current driving of indicator LEDs, backlight lamps and mini portable lighting products. Consistent saturation voltage avoids brightness flicker, supporting long-term stable operation of smart remote control and display auxiliary modules.
5. Inductive Load Driver for Relays, Buzzers & Mini Motors
Perfect for driving small inductive loads including electromagnetic relays, buzzers and miniature DC motors. Its 3A large current capacity withstands startup surge current reliably, widely applied in smart home automation and miniature industrial control boards.
