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2SD1819A,CJ,Bipolar Transistors

2SD1819A

Bipolar Transistors ,2SD1819A ,NPN ,VCEO:50V ,VCBO: 60V ,150mW ,100mA ,SOT-323,ZQ

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

Data Sheet： 2SD1819A_SOT-323

Product number：	QT-TQT297P50VC02010302CJQ
Manufacturer Product Number：	2SD1819A
Manufacturer ：	CJ
Series ：	CJ-TRANSISTOR
Product Type ：	Bipolar Transistors
Polarity ：	NPN
Emitter Voltage(VCEO) ：	50V
Base Voltage(VCBO) ：	60V
Power Disspation ：	150mW
package ：	SOT-323
Description：	Bipolar Transistors ,2SD1819A ,NPN ,VCEO:50V ,VCBO: 60V ,150mW ,100mA ,SOT-323,ZQ

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)

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File

File Type	File Name
Data Sheet	2SD1819A_SOT-323

Lead time： Estimated delivery date 2026-08-17

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Prospect sharing of silicon carbide (SiC) substrate sheets Silicon carbide (SiC) substrate is one of the key materials for manufacturing SiC devices, which can provide high lattice matching, low defect density, and high-quality surface flatness. With the continuous expansion of the silicon carbide power device market, silicon carbide substrate sheets have also been widely used and are expected to continue to maintain rapid growth in the coming years.

Voltage drop factors of silicon carbide (SiC) diodes The voltage drop of silicon carbide (SiC) diodes refers to the electromotive force difference of SiC diodes. Silicon carbide diode is a semiconductor device with a P-N junction structure that can be used to control current or voltage. The voltage drop of a diode refers to the electromotive force difference between the P-N junction of the diode in the forward conducting state, that is, the forward bias voltage. This is due to the potential difference between the contact surfaces in the diode.

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:

Testing and Inspection Methods for Silicon Carbide (SiC) Diodes Silicon carbide (SiC) diodes have low switching losses, high reverse withstand voltage, and thermal stability, and have been widely used. Here are the usage and testing methods for SiC diodes:

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.

Detailed explanation of reverse recovery principle of silicon carbide (SiC) diode Silicon carbide diodes are unipolar devices, so compared to traditional silicon fast recovery diodes (silicon FRDs), silicon carbide diodes have ideal reverse recovery characteristics. When the device switches from forward to reverse blocking direction, there is almost no reverse recovery power, and the reverse recovery time is less than 20ns. Even the reverse recovery time of 600V10A silicon carbide diodes is less than 10ns.

Why is the development of high-voltage SiC MOSFET devices slow High voltage SiC MOSFET devices have many advantages, such as low on resistance, high temperature performance, and high-frequency characteristics, and therefore have broad prospects in some applications, such as electric vehicles, power electronic converters, and solar inverters. However, the development of these devices has been relatively slow, possibly due to the following reasons:

What are the differences between MOSFET and SBD? MOSFET and SBD are two different types of semiconductor devices, with the main differences as follows: 1. Different working principles, 2. Different conduction characteristics, and 3. Different costs and complexities.

The Development Trend of High Voltage SiC MOSFET The research on high-voltage SiC MOSFETs is gradually deepening, mainly focusing on the design, preparation, and detection of high-voltage SiC MOSFETs. In the past two years, Sic Mosfet has broken through the peak tunneling voltage of 2600V, with crystal surface insulation characteristics as high as 200MV • cm-1, and static performance reaching 500A/1700V for a single chip in a half bridge topology. It can also support constant current and constant voltage regulator operation. In addition, there are SiC Mosfets designed for solid-state dye solar energy to meet the needs of these applications.

Calculation methods for P-channel enhanced VDS and CGS In a P-channel Enhanced Mode FET, VDS represents the voltage between the drain and source, while CGS represents the capacitance between the gate and source. When calculating VDS, it is necessary to consider the working state of the P-Channel Enhanced Mode FET. Generally, the following formula can be used for calculation:

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