SMP30-220 Circuit Protection

Series:	SMP, TRISIL™
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Voltage - Breakover:	293V
Voltage - Off State:	220V
Current - Peak Pulse (8/20µs):	70A
Current - Peak Pulse (10/1000µs):	30A
Current - Hold (Ih):	150mA
Number of Elements:	1
Capacitance:	20pF
Mounting Type:	Surface Mount
Package / Case:	DO-214AC, SMA

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

SMP30-220: TVS – Thyristors Application Field and Working Principle

Thyristors, also known as Silicon-Controlled Rectifiers (SCRs) or Surprising Unijunction Transistors (SETs), are a family of power semiconductor devices that includes a variety of three-terminal, bidirectional switches, as well as a variety of rectifiers. Thyristors are used in a wide range of applications from motor control to power rectification and protection. One example of a thyristor is the SMP30-220. This article will discuss the application field and the working principle of the SMP30-220.The SMP30-220 is a high-speed, high-frequency, low-loss silicon-controlled rectifier (SCR) designed for AC or DC power switching applications covering voltages up to 220V and currents up to 220A. With its high-speed switching abilities, the SMP30-220 is capable of switching diverse loads ranging from linear to switch mode supplies, light dimmers, soft starters, AC or DC motors, industrial controls, and more. Additionally, it offers high energy densities, making it possible for customers to reduce their device size. The SMP30-220 is ideal for use in multiple locations, as it is moisture-proof, vibration resistant, and able to withstand a wide temperature range.The SMP30-220 is constructed of a discrete SCR enclosed in a plastic package that is compound and flame-retardant. Inside the package, there are three terminals, the anode, the cathode, and the gate. When there is no current passing through the device, the switch is “off” and no current can flow. However, when a small current is passed through the gate terminal, it causes the device to turn on and allows current to flow through the anode to the cathode. This operation is called “turning on the switch” and is known as the firing process.The SMP30-220 thyristor also offers several advantages over other devices, such as its ability to withstand voltage surges, its low power loss, and its extremely low temperature rise. These features make it an ideal choice for many industries, including automobile, aircraft, and power converter applications.From an electrical standpoint, thyristors are composed of two switching devices: a thyristor and two diac versions. A thyristor is a three-terminal, bidirectional switching device which works in accordance with the firing command sent from the gate terminal. In the SMP30-220 thyristor, the two diodes we mention are actually a pair of two serially connected diodes called “diacs”. The SMP30-220 thyristor also has active thermic protection which ensures that the device does not overheat and cause operation failures.The SMP30-220 thyristor also has an integrated resistor which is used to reduce the length of the firing pulse. This helps to reduce the voltage across the device and reduce losses during the firing process. The SMP30-220 also has a linear conducting characteristic, providing a stable switching voltage over a wide range of loads.Overall, the SMP30-220 thyristor is a powerful and reliable switching device that has become a popular choice for a variety of AC or DC power switching applications. It is easy to install and maintain, offers high energy densities, and can withstand a wide temperature range. Additionally, it offers several advantages over other devices due to its low power loss and its ability to withstand voltage surges.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description