Shanghai Leiditech TVS transient voltage suppression tube - SMA/SMB/SMC packaging can achieve multiple powers

1. What is TVS

TVS is the abbreviation for Transient Voltage Suppressor. TVS diode is a protective component used to protect electronic components from voltage fluctuations. The working principle of a TVS diode is to have the properties of a regular diode within its forward operating range. When the reverse voltage exceeds its rated reverse voltage, the voltage will rapidly increase, changing the high impedance between its two poles into low impedance at a speed of 10 to the negative 12th power second. It absorbs surge power of up to several kilowatts, placing the voltage box between the two poles at a predetermined value, effectively protecting precision components in electronic circuits, Protects against damage from various surge pulses. When the overvoltage disappears, the TVS diode will automatically reset.

2. Characteristics of TVS

1) Fast response speed: The transient suppression diode has a very fast response speed and can respond to voltage changes within a ns level time, thereby protecting the circuit from damage caused by transient voltage, electromagnetic interference, and other factors.

2) High reverse voltage: Usually able to withstand a voltage of several hundred volts, which can protect the circuit from damage caused by high voltage.

3) Effective suppression of transient voltage: Transient suppression diodes can effectively suppress transient voltage and prevent it from entering the protected circuit.

4) Small size and high power density: Transient suppression diodes are usually smaller in size and higher in power density than other protection components, providing effective protection in small devices

5) Long life: Transient suppression diodes have a long service life and can withstand multiple high-power transient voltage surges without affecting their performance.

6) Environmental protection: Compared with other protective components, transient suppression diodes have better environmental performance due to the absence of combustibles and the release of toxic gases.

7) In addition, it has the characteristics of high transient power, low leakage current, small breakdown voltage deviation, and easy control of clamping voltage. In summary, TVS diodes have the advantages of fast response speed, small size, good protection effect, and high reliability, making them one of the ideal components for protecting electronic components.

3. TVS application field

1)TVS transient suppression diodes can be widely used in the protection of various electronic devices. The following are some common application areas: 1) Electronic device protection: TVS transient suppression diodes can be used to protect various electronic devices, such as televisions, computers, mobile phones, audio systems, etc. from damage caused by transient voltage fluctuations.

2) Power line protection: TVS transient suppression diodes can be used to protect power lines from transient voltage, lightning, and other factors.

3) Communication network protection: TVS transient suppression diodes can be used to protect communication equipment, such as switches, routers, etc. from electromagnetic interference and lightning and other factors.

4) Automotive electronic protection: TVS transient suppression diodes can be used to protect automotive electronic devices, such as engine controllers, in car audio systems, from voltage surges, electromagnetic interference, and other factors.

5) Aerospace field: TVS transient suppression diodes can be used to protect aerospace electronic equipment from electromagnetic interference damage.

In summary, TVS transient suppression diodes can be widely applied in the protection field of various electronic devices, and their main function is to protect electronic devices from factors such as voltage surges, transient voltage, electromagnetic interference, etc.

4. Shanghai Leiditech Electronics SMA/SMB/SMC Packaging TVS Power

The Shanghai Leiditech Electronic SMA, SMB, and SMC packaged TVS series can achieve various power and voltage ranges for selection as shown in the table below:

5. How to choose packaging for TVS with the same power

When selecting the packaging size of TVS transient suppression diodes with the same power, the following factors should be considered:

1) Maximum pulse current: When selecting the packaging size, it is necessary to consider the maximum pulse current that the TVS transient suppression diode can withstand, and to choose a suitable size to ensure that it can withstand the required current.

2) Voltage level: The packaging size needs to be selected based on the reverse voltage that the TVS transient suppression diode needs to withstand.

3) Heat dissipation capability: When selecting packaging, it is also necessary to consider the issue of TVS transient suppression diode heat dissipation. If the ambient temperature is high or the required power is high, it is necessary to choose a package with good heat dissipation performance to ensure the stable operation of the TVS transient suppression diode. 4) Design space: Different packaging sizes correspond to different circuit board space requirements, which need to be selected based on actual situations.

4) In summary, when selecting the packaging size of TVS transient suppression diodes with the same power, it is necessary to comprehensively consider factors such as maximum pulse current, voltage level, heat dissipation capacity, and circuit board design space.

The following are representative models of Leiditech for reference:

SMA packing：

SMAJ3.3CALIR,SMAJ24CA,SMAJ36CA,SMAJ550CA,6AJ5.0CA,6AJ24CA,6AJ36CA,6AJ220CA,

SMB packing：SMBJ3.3CA,SMBJ24CA,SMBJ36CA,SMBJ550CA,10BJ5.0CA,10BJ24CA,10BJ36CA,10BJ440CA,SMB15J5.0CA,SMB15J24CA,SMB15J36CA,SMB15J220CA,SMB30J11CA,SMB30J24CA,SMB30J36CA,SMB30J150CA,

SMC packing：SMCJ5.0CA,SMCJ24CA,SMCJ36CA,SMCJ550CA,SMDJ5.0CA,SMDJ24CA,SMDJ36CA,SMDJ440CA,5.0SMDJ5.0CA,5.0SMDJ24CA,5.0SMDJ36CA,5.0SMDJ440CA,6.6SMDJ11CA,6.6SMDJ24CA,6.6SMDJ36CA,6.6SMDJ100CA,8.0SMDJ12CA,8.0SMDJ24CA,8.0SMDJ36CA,8.0SMDJ110CA

Leiditech can provide various interface electrostatic lightning protection solutions to solve electromagnetic compatibility problems for customers, and provide more protection solutions，Please search for the mini program "EMC Electromagnetic Compatibility Community" on WeChat. Welcome to contact Hu Gong 18016225001.