When a forward voltage is applied between the anode and the cathode of the thyristor and the voltage is not applied to the control pole, since the PN junction J2 is reverse biased, the thyristor is not turned on, that is, in a blocking state; and when the applied voltage is opposite in polarity The thyristor is still blocked due to the reverse bias of J1 and J3. In both cases, the switch is in the off state. If a forward voltage is applied between the anode and the cathode while a forward voltage is applied between the anode and the cathode, the thyristor is turned from blocking to conducting, and the tube pressure drop is small, about 1V. , equivalent to the switch is closed. It can be seen that the thyristor is equivalent to a controllable one-directional conductive switch. Compared with the diode, it has controllability; compared with the triode, it does not have the characteristic that the anode current increases proportionally with the control pole current, only when the gate current reaches a certain value (generally several tens of milliamps) The anode and cathode are suddenly turned into conduction by blocking. After the thyristor is turned on, it can pass tens to thousands of amps of current, and once turned on, the gate generally does not control, thereby maintaining its conducting state. To turn it off, reduce the anode current to a certain value or add a reverse voltage. It can be restored to its control after being turned off.
19mm Key Switches
19mm key switches, ie, key switch lock, is gradually increase market share with its Diverse functions, accurate operation and Wide range of applications
This 19mm key switches could have 3 position key switch, 4 Position key Switch, which means it could have stronger power to support industrial and other bigger equipment. The exclusive technology of reset functions, multi-position rotation angles are not available in all walks of life,only we can have the technique to realize these.
As for the quality, this 19mm key switches have via UL authentication. In terms of green environmental protection, we adhere to the concept of sustainable development from the procurement of raw materials to the shipment of finished products. Meanwhile, we have professional environmentalist in charging of the whole production system, ROHS environmental protection providing PPAP report for our customers.
At present, our company's power key switches matching detection equipment is roughly as follows:ROHS testing machine, projector, life testing machine, push-pull testing machine, secondary element microscope, power testing machine, salt spray testing machine, etc.
With a sound quality control system and reliable detection equipment, we has created a globally reliable power key switch and has become a trusted producer of electrical key switches.
19Mm Key Switches,4 Position Slide Switch,19Mm Push Button Key Switch,19Mm 3 Position Key Switch YESWITCH ELECTRONICS CO., LTD. , https://www.yeswitches.com
