2027-25-BT1

Series:	2027
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Voltage - DC Spark Over (Nom):	250V
Impulse Discharge Current (8/20µs):	10000A (10kA)
Tolerance:	±15%
Number of Poles:	2
Fail Short:	No
Mounting Type:	Through Hole
Package / Case:	Axial Cylinder

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Gas Discharge Tube Arresters (GDT)

Gas Discharge Tube Arresters (GDT) is an incredibly versatile form of electrical protection. It is a type of surge arrester that utilizes gas discharge tubes (GD) filled with a combination of noble gases. This combination works to discharge excess voltage in order to protect other electrical equipment from surges due to lightning. It can be used to protect equipment across various fields including telecommunications, industrial equipment and automotive applications. The 2027-25-BT1 GDT surge arrester uses a two-stage design to provide superior protection against lightning-caused transients and other damaging high-energy events. It is composed of two stages, a gas filled silicon avalanche diode section (SFD) that works to limit current during a transient surge, and a gas filled breakdown tube (BT) that works to arrest an excess of voltage which then eliminates any further damage. The SFD section of the 2027-25-BT1 GDT works to limit the current during transient surges. This is done by having a gas filled diode that works to conduct electricity until the current passes a certain threshold, at which point the diode works as a semiconductor switch and turns off the current until it drops back down below a certain threshold. This process limits and reduces the amount of current that is present in the circuit. The BT section of the 2027-25-BT1 GDT works to arrest any excess of voltage during a surge. It does this by utilizing a gas-filled cylinder that works to minimize any electrical discharge that exceeds a certain threshold. This cylinder is composed of two electrodes, one being positive, and the other being negative. When a transient surge occurs, the voltage exceeds the threshold. The positive electrode then becomes negatively charged while the negative electrode becomes positively charged. This causes a spark to occur between the electrodes, which then leads to the breakdown of the gas in the cylinder, which works to quickly and efficiently arrest any excess of voltage that may cause damage to the electrical equipment. All in all, the 2027-25-BT1 GDT surge arrester is an incredibly efficient and reliable electrical protection tool. Its two-stage design works to reduce the amount of current during transient surges while also allowing for quick arrestance of any excess voltage that could cause damage to essential electrical equipment. As such, it is widely used by various industries and can be considered a fundamental piece of protection for any electrical equipment.

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