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BAS21S,CJ,Switching Diodes

BAS21S

Switching Diodes ,BAS21S ,VR:250V ,IO:200mA ,PD:225mW ,VF:1.25V ,SOT-23

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Product number：	DS-SDS037250VA200040202CJ
Manufacturer Product Number：	BAS21S
Manufacturer ：	CJ
Series ：	CJ-Switching Diodes
Product Type ：	Switching Diodes
Reverse Voltag (VRM) ：	250V
Output Current(IO) ：	200mA
Power Dissipation (Pd) ：	225mW
Forward voltage (VF) ：	1.25V
Package ：	SOT-23
Description：	Switching Diodes ,BAS21S ,VR:250V ,IO:200mA ,PD:225mW ,VF:1.25V ,SOT-23

Series Introduce Find Similar

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

Series Introduce Find Similar

BAS21

Switching Diodes ,BAS21 ,VR:250V ,IO:200mA ,PD:225mW ,VF:1.25V ,SOT-23

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BAS21A

Switching Diodes ,BAS21A ,VR:250V ,IO:200mA ,PD:225mW ,VF:1.25V ,SOT-23

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BAS21C

Switching Diodes ,BAS21C ,VR:250V ,IO:200mA ,PD:225mW ,VF:1.25V ,SOT-23

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Lead time： Estimated delivery date 2026-03-10

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SiC MOSFET module is a power semiconductor device made of a new material, silicon carbide (SiC), which outperforms mainstream silicon (Si) IGBT and MOSFET devices in high-speed switching performance and high-temperature environments. In industrial equipment applications that require higher rated voltage and larger current capacity, SiC MOSFET modules can meet the application needs, including inverters, converters, and photovoltaic inverters for rail cars, achieving low loss and miniaturization of the system.

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.

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:

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:

What are the measures for surge suppression? The reasons for generating surges are multifaceted, and surges are a type of spike pulse with high rising speed and short duration. Overvoltage in the power grid, switch ignition, reverse voltage, static electricity, and motor/power supply noise are all factors that cause surges. And surge protectors provide a simple, economical, and reliable protection method for power surge protection of electronic devices.

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.

Silicon carbide (SiC) diodes are diodes made from silicon carbide as raw material. Silicon carbide diode, claimed to have zero reverse recovery time, is a dedicated boost diode for high-efficiency PFC boost circuits.

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 does high negative pressure in SiC MOS affect threshold drift The threshold drift of SiC MOSFET is affected by negative pressure because this device has a high leakage current, which reduces the difference between the control terminal voltage and the source terminal voltage, thereby affecting the switching performance of MOSFET. In addition, high negative pressure may also cause MOSFETs to enter rupture mode and trigger other adverse effects.

Introduction to Low Sensitivity SiC Power Modules Low inductance SiC power module refers to a power module that uses silicon carbide (SiC) as a semiconductor material and has a lower inductance value. Compared with traditional silicon (Si) power modules, low inductance SiC power modules have higher switching speed and lower switching losses, thereby improving the efficiency and reliability of the system.

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