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BC857,CJ,Bipolar Transistors

BC857

Bipolar Transistors ,BC857 ,PNP ,VCEO:45V ,VCBO: 50V ,200mW ,100mA ,SOT-23,3G

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The image is for reference only, please refer to the drawing for details

Product number：	QT-TQT418P45VC05060301CJG
Manufacturer Product Number：	BC857
Manufacturer ：	CJ
Series ：	CJ-TRANSISTOR
Product Type ：	Bipolar Transistors
Polarity ：	PNP
Emitter Voltage(VCEO) ：	45V
Base Voltage(VCBO) ：	50V
Power Disspation ：	200mW
package ：	SOT-23
Description：	Bipolar Transistors ,BC857 ,PNP ,VCEO:45V ,VCBO: 50V ,200mW ,100mA ,SOT-23,3G

Series Introduce Find Similar

Attribute Name	Attribute Value
Manufacturer	CJ
Product Series	CJ-TRANSISTOR
Product Type	Bipolar Transistors
EU RoHS	Compliant(2011/65/EU)
EU REACH	Dose not contain REACH SVHC(1907/2006/EC)

Series Introduce Find Similar

S9015

Bipolar Transistors ,S9015 ,PNP ,VCEO:45V ,VCBO: 50V ,200mW ,100mA ,SOT-23

$0.007228 More

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Lead time： Estimated delivery date 2026-10-05

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Silicon carbide diodes: an important role in the photovoltaic industry Silicon carbide (SiC) diodes have high stability and efficiency, making them suitable for various photovoltaic applications such as solar panels and solar systems. For example, in solar panels, silicon carbide diodes can prevent excessive current or overvoltage, thereby protecting solar cell components. In solar energy systems, it can also limit the charging current and control the charging and discharging process of the battery.

What are the solutions to reduce losses in SiC modules? The SiC module loss reduction scheme mainly considers the following four aspects: adopting low voltage and low frequency design, optimizing the driver program, optimizing the structural design, and adopting low side resonance technology.

Circuit symbols for silicon carbide (SIC) MOSFETs The circuit symbol of silicon carbide (SiC) MOSFET is similar to that of traditional silicon MOSFET, except that some special markings are added to the symbol to indicate its characteristics.

The working environment and application market of SiGaNSiC MOSFETs and Si IGBTs Compared with MOSFET, SiC perfectly solves the problem of difficult simultaneous implementation of high voltage and high frequency in silicon-based materials. Based on compatibility with high voltage and medium frequency, SiC MOSFET has become the optimal solution for electric vehicles, charging stations, and photovoltaic inverters (without considering cost) due to its high efficiency and small size;

Wide application of silicon carbide (SiC) MOSFET in new energy charging piles Silicon carbide power devices cover series such as 650V/2A-100A, 1200V/2A-90A, 1700V/5A-80A, etc. The products have been put into mass production and can fully benchmark the advanced quality and level of international brand peers. We have successively launched full current voltage level silicon carbide Schottky diodes and silicon carbide MOSFET series products that have passed industrial and automotive reliability tests, with performance reaching the international advanced level. They are applied in fields such as solar inverters, new energy electric vehicles and charging piles, smart grids, high-frequency welding, rail transportation, industrial control special power supplies, and national defense and military industries.

What is MOSFET VDS ringing? VDS ringing refers to the phenomenon where VDS (DC source drain voltage) oscillates when using silicon carbide MOSFETs. This is due to the special working principle of MOSFET, as MOSFET is a switching device that has the ability to change between on and off states.

The main six stages of SiC chip manufacturing The main six specific processes of SiC chip manufacturing are pre-processing, wafer processing, crystal growth, integrated circuit design and fabrication, chip testing, and integration.

5 important techniques for selecting gallium nitride (SiC) MOSFETs To prove that your choice of SiC as the preferred power semiconductor for switch mode design is correct, please consider the following prominent features. Compared to standard or super junction MOSFETs or even IGBTs, SiC devices can operate at higher voltages, frequencies, and temperatures. Most of the power loss of other devices does not exist in SiC devices, so the efficiency of SiC devices can reach over 90% in most applications. Initially, SiC devices were more expensive than other MOSFETs or IGBTs.

Combination of Silicon Carbide (SiC) Power Management Solutions Silicon carbide solutions support the replacement of aircraft's pneumatic and hydraulic systems with smaller, lighter, and more efficient electrical solutions to power onboard AC generators, actuators, and auxiliary power units (APU). This type of solution can also reduce the maintenance requirements of these systems. However, the most significant contribution of SiC technology lies in its mission to electrify commercial transport vehicles, which are one of the world's largest sources of GHG emissions. With the advent of 1700V metal oxide semiconductor field-effect transistors (MOSFETs) and configurable digital gate drive technology, today's SiC solutions enable designers to generate maximum productivity with minimal energy consumption for these systems.

Calculation method and formula for MOS transistor losses The losses of MOS transistors can be estimated by calculating their current losses and power losses. Current loss refers to the loss caused by the passage of current inside a MOS transistor, which is due to the resistance loss between electrons and the silicon substrate when passing through the MOS transistor. This loss can be calculated using the following formula:

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