Triac Schematics - naming 1, TRIAC: three side: TRIode (take the first three letters); AC semiconductor switch: ACsemiconductor switch (taking the first two letters). Combinations of the above two terms as "TRIAC", Chinese translation meaning "triac switch." Thus "TRIAC" is triac collectively. 2 SCR BTA212, BCR: bi: Bi-directional (take the first letter); control: Controlled (take the first letter); rectifier: Rectifier (take the first letter). Then a combination of these three groups of the first letter from the English noun: "BCR", Chinese translation meaning "triac." To "BCR" to name a typical triac manufacturers such as Japan's Mitsubishi, such as: BCR1AM-12, BCR8KM, BCR08AM more. 3, BT: bi: Bi-directional (take the first letter); three-terminal: Triode (take the first letter). A combination of more than two words to "BT" SCR, but also on the product's model name triac typical manufacturers such as: STMicroelectronics ST companies, Philips -Philips companies are thus named bidirectional control silicon. Representative models such as: PHILIPS's BT131-600D, BT134-600E, BT136-600E, BT138-600E, BT139-600E, etc. SCR BTA216, these are the four quadrants / non-insulated / triac. In the bridge rectifier circuit, the diodes are replaced by the SCR is not controlled rectifier circuit became of it? SCR BTA412Y in bridge rectifier circuit, just need to be replaced two diodes on SCR can constitute a full-wave controlled rectifier circuit. Now draw the circuit and waveforms (Figure 5), the thyristor controlled Nengkanmingbai very desired trigger pulse is how to generate it? SCR trigger circuit in the form of many commonly used RC-bridge phase-shift trigger circuit, single-junction transistor trigger circuit, transistor trigger circuit, using a small SCR trigger large SCR trigger circuit, etc. SCR BTA412Y | are fertile Electronics (certified) | SCR by the Dongguan City is Wal-Electronic Technology Limited. Dongguan City is Wal-Electronic Technology Co., Ltd. (www.dgmydz.com) (www.dgmydz.com) is Dongguan, FET leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum limits to meet customer needs. Wal-electronics leader in the positive with the staff warmly welcome all inquiries negotiations to create a positive future Wal-electron better. You can also access (www.dgmydz.com/supply_details_43375980.html), for more information about the company.