TYN612 Thyristor: Application Circuit, Datasheet, Pinout

TYN612 Symbol

TYN612 Footprint

TYN612 3D Model

Thyristor TYN612 is fit for all modes of control like overvoltage crowbar protection, motor control circuit, inrush current limiting circuits, capacitive discharge ignition and voltage regulation circuits such as overvoltage crowbar protection, motor control circuits in power tools and kitchen aids, inrush current limiting circuits, capacitive discharge ignition and voltage regulation circuits.

• On-state RMS current is 12 A

• Repetitive peak off-state voltage is 600 V

• Triggering gate current ranges from 5 mA to 15 mA

• Used as protection circuits, current limiting circuits and control circuits

• Provide optimized performance in a limited space

• Available in surface-mount and through-hole package

• Power Control

• Switching

• Zero voltage switching

• Over-voltage protection

• Pulse circuit

• Battery Charging regulator

The equivalent for TYN612:

• TN1215

• TYN612

• TYN812

• TYN1012

Thyristors are switches that can be utilized in power control circuits, over-voltage protection, and a variety of other applications. It starts with a gate pulse, then self-latches and remains ON until the supply is disconnected. To turn the thyristor off, we must utilize a switching circuit connected to the circuit's main supply or across the thyristor. The number '6' in the name TYN612 stands for the value of the repetitive peak off-state voltage, which is 600 V, while the number '12' stands for the on-state RMS current, which is 12 A.

The switches S1 and S2 are initially in a normally-open state. Thyristors remain reversed biased until the gate pulse is given when the supply is turned on. We used Push Button S2 to provide the gate pulse. Even if we release the push button S2, the thyristor goes on and latches as the S2 switch closes.

TYN612 Typical Application Circuit

The only method to stop the Thyristor from conducting in this typical application circuit once it has self-latched into the ON state is to disrupt the supply across the Thyristor. We accomplish this by using switch S1, which short-circuits the anode and cathode, lowering the holding current to its threshold value. As a result, the Thyristor is reset or turned off.

Resistance R1 is used to provide sufficient gate current to turn ON the thyristor. Resistance R2 is used for decreasing the gate sensitivity and increasing the DV/DT capability. Therefore, it prevents Thyristor from false triggering.

R1 was employed to supply enough gate current to turn the thyristor on. The R2 resistance is utilized to reduce gate sensitivity and boost DV/DT capacity. As a result, it prevents Thyristor from triggering incorrectly.

STMicroelectronics is a globally recognized semiconductor company. They are dedicated to developing semiconductor solutions for various microelectronics applications. STMicroelectronics enjoys unrivalled silicon and system expertise, strong manufacturing strength, IP portfolio, and solid relationships with their strategic partners. Based on these advantages, STMicroelectronics has become a pioneer in System-on-Chip (SoC) technology and its products have a positive effect in realizing today's convergence trends.