A triode, also called a bipolar transistor or transistor, is a semiconductor device used to control current. Its function is to amplify weak signals into electrical signals of large amplitude, which plays a vital role in power amplification, current switching, and control.
Types of SMD Triodes:
There are two types of SMD triodes according to polarity: NPN type triodes and PNP type triodes;
According to materials: silicon triodes and germanium triodes;
According to the operating frequency: low-frequency triodes and high-frequency triodes;
According to power: low power triode, medium power triodes, and high power triodes;
Among them, the best-selling models in SOT-23 packages include S8050 SS8050 MMBT3904 MMBT5551 MMBT4401 MMBT2222A 2SC1815 2SC1623
BC847 BC807 BC846 S9012 S9014 S8550 MMBT3906 MMBT5401 MMBT4403 MMBT2907 MMBTA42 2SA812.
Popular models in SOT-89 packages include PXT8050 D882 B772 etc.
SMD triodes come in various categories, each with unique performance and functions. When using the SMD triodes, we should select the appropriate category based on your needs to avoid any unnecessary losses caused by incorrect selection.
What Are The Functions of Triodes?
1.SMD triodes are commonly used in switching power supply circuits, high-frequency oscillation circuits, drive circuits, analog-to-digital conversion circuits, pulse circuits and output circuits, etc.;
2.When the voltage applied to the emitter junction of the chip transistor is greater than the conduction voltage of the PN junction, and the base current of the chip transistor increases to a certain extent, the collector current will no longer increase with the increase of the base current. It is near a fixed value and does not change;
3.SMD triodes and plug-in transistors have the same functions, but the packaging of the transistors is different. SMD triode is thinner in appearance, saving space and eliminating the need for manual plug-ins.
About Manufacturer Hottech
As the market demand for SMD triodes increases, so do the models and specifications. Hottech has introduced advanced production equipment from both domestic and foreign sources to meet this demand. Hottech uses one product to package multiple wafers. Hottech implements advanced technology and standardized production processes to make manufacturing efficient. Hottech provides customers with reliable, high-quality products. LCSC electronics is a global electronic components distributor that offers in-stock inventory for fast delivery since LCSC owns 130,000㎡ intelligent warehouses. Select Hottech’s products at LCSC electronics now.
