SL1021B350R

Series:	SL1021B
Packaging:	Tray
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Voltage - DC Spark Over (Nom):	350V
Impulse Discharge Current (8/20µs):	20000A (20kA)
Tolerance:	--
Number of Poles:	3
Fail Short:	No
Mounting Type:	Through Hole
Package / Case:	Axial Cylinder, 3 Lead (Radial Bend)

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Gas Discharge Tube Arresters (GDT)

Gas Discharge Tube Arresters (GDT) are an important component for many electronic designs, providing surge and transient overvoltage protection to prevent electrical and signal components from experiencing catastrophic failure due to lightning or other surge events. Gas Discharge Tube Arresters (GDT), such as the SL1021B350R, are designed to provide effective over-voltage protection for a variety of applications. This article will discuss the features, benefits, and applications of the SL1021B350R, as well as the principles of its operation.The SL1021B350R is a Gas Discharge Tube Arrester designed specifically to provide over-voltage protection in applications with high-frequency AC input voltages. The device is designed to safely divert a high level of energy from the input voltage to ground, when the input voltage exceeds a certain level, preventing the input voltage from causing damage to downstream components.The SL1021B350R features an integrated two-stage response, which triggers a low-power clamping stage initially, followed by a full clamping stage. This two-stage response allows the device to provide maximum protection against large transient overvoltage events, while avoiding nuisance tripping and unnecessary power dissipation in the case of voltage transients of short duration. The device also features a unique design that enables reliable operation in a wide range of ambient temperatures.The device is capable of operating in a broad temperature range of -40 to +85°C, with a maximum peak voltage of 350V AC, and a maximum response time of 250μs. The combination of these specifications makes the SL1021B350R ideal for protecting circuitry in a variety of applications. It can be used to protect communication and computer equipment, as well as automotive and industrial applications.The working principles of the SL1021B350R are based on the use of a combination of series and parallel Gas Discharge Tubes (GDTs). When the input voltage is below a certain ‘breakdown’ threshold, the GDTs are in parallel, allowing power to flow unimpeded. When the input voltage exceeds the threshold, one or more of the GDTs will break down, diverting the excess current to ground. This in turn prevents the input voltage from exceeding a certain level, thereby protecting the downstream components from overvoltage damage.In conclusion, the SL1021B350R is an ideal choice for providing overvoltage protection in a variety of applications. Its integrated two-stage response feature ensures maximum protection while avoiding nuisance tripping, and its wide temperature range supports reliable operation in a range of conditions. Furthermore, its unique design combines series and parallel GDTs to ensure effective overvoltage protection while avoiding damage to downstream components.

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