2021-03-04
Transient suppression diode (TVS) is a kind of high performance protection device in the form of diode. Transient suppression diode is used to absorb surge power, can withstand the reverse voltage shock in a very short time, so that the voltage clamp between the poles is located at a specific voltage, to avoid the impact of the circuit behind. Simply put, it is to do overvoltage protection, which is very common in communications and other products. So for the terms and definitions of TVS transient suppression diodes, I believe there are many friends who do not understand the terms and definitions of TVS transient suppression diodes, and Li Yang Semiconductor to see!
Electric prying equipment
This type of suppressor has an "electric skid" characteristic and is usually associated with 4-layer NPNP silicon-controlled bipolar devices or plasma gas /GDT devices. Once the threshold or transition voltage is reached, a further increase in current will cause the device to conduct electricity rapidly, with a forward voltage drop of only a few volts. In essence, the line will be in a temporary "short circuit" state when a transient phenomenon occurs.
Operating temperature range
Minimum and maximum ambient operating temperature of the device application circuit. The operating temperature must not affect the adjacent components, which is a parameter that the designer must consider.
capacitance
A property of a circuit element that allows it to store charge. In circuit protection, the off-state capacitance is usually measured at frequency 1 MHz and bias 2 V.
Reverse off-state voltage (VR)
For unidirectional transient suppression diodes, this is the maximum peak voltage that can be used in the blocking direction in the absence of a large current. For bidirectional transients, it ADAPTS to either direction. The meaning is the same as the maximum off-state voltage and the maximum operating voltage.
Breakdown voltage (VBR)
The breakdown voltage measured at the specified DC test current, usually 1mA. The maximum and minimum values are usually stated.
Peak pulse Current (IPP)
The maximum pulse current that can be applied repeatedly. If indicated, it can usually be a 10x1000μs double exponential waveform or 8x20μs.
Maximum clamping voltage (VC or VCI)
The maximum voltage that can be measured from the protector when the maximum peak pulse current occurs.
Peak Pulse Power (PPP)
Expressed in watts or kilowatts, 1ms exponential transient value), is the product of IPP and VCL.
