TYN612 Thyristor: Application Circuit, Datasheet, Pinout
SCR Standard Recovery -40°C~125°C 1.6V-On State (Vtm) (Max) 5μA-Current - Off State (Max) 3-Termination Tube TO-220-3 Through Hole









SCR Standard Recovery -40°C~125°C 1.6V-On State (Vtm) (Max) 5μA-Current - Off State (Max) 3-Termination Tube TO-220-3 Through Hole
TYN612 Thyristor comes from the standard 12 A SCR series is suitable to fit all modes of control, found in applications. furthermore, there is a huge range of Semiconductors, Capacitors, Resistors and ICs in stock. Welcome RFQ.

How to use a Thyristor as a Switch
TYN612 Pinout

TYN612 Pinout
| Pin NO. | Pin Name | Description |
| 1 | K | Cathode of Thyristor |
| 2 | A | Anode of Thyristor |
| 3 | G | Gate of Thyristor, used for triggering |
TYN612 CAD Model
Symbol

TYN612 Symbol
Footprint

TYN612 Footprint
3D Model

TYN612 3D Model
TYN612 Description
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.
Specifications
- TypeParameter
- Lifecycle Status
Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.
ACTIVE (Last Updated: 7 months ago) - Factory Lead Time11 Weeks
- Contact Plating
Contact plating (finish) provides corrosion protection for base metals and optimizes the mechanical and electrical properties of the contact interfaces.
Tin - Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Through Hole - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Through Hole - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
TO-220-3 - Number of Pins3
- Number of Elements1
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-40°C~125°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tube - JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e3 - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Number of Terminations3
- ECCN Code
An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.
EAR99 - Voltage - Rated DC
Voltage - Rated DC is a parameter that specifies the maximum direct current (DC) voltage that an electronic component can safely handle without being damaged. This rating is crucial for ensuring the proper functioning and longevity of the component in a circuit. Exceeding the rated DC voltage can lead to overheating, breakdown, or even permanent damage to the component. It is important to carefully consider this parameter when designing or selecting components for a circuit to prevent any potential issues related to voltage overload.
600V - Terminal Position
In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.
SINGLE - Current Rating
Current rating is the maximum current that a fuse will carry for an indefinite period without too much deterioration of the fuse element.
12A - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
TYN612 - Pin Count
a count of all of the component leads (or pins)
3 - Configuration
The parameter "Configuration" in electronic components refers to the specific arrangement or setup of the components within a circuit or system. It encompasses how individual elements are interconnected and their physical layout. Configuration can affect the functionality, performance, and efficiency of the electronic system, and may influence factors such as signal flow, impedance, and power distribution. Understanding the configuration is essential for design, troubleshooting, and optimizing electronic devices.
SINGLE - Max Repetitive Reverse Voltage (Vrrm)
The Max Repetitive Reverse Voltage (Vrrm) is a crucial parameter in electronic components, particularly in diodes and transistors. It refers to the maximum voltage that can be applied across the component in the reverse direction without causing damage. This parameter is important for ensuring the proper functioning and longevity of the component in circuits where reverse voltage may be present. Exceeding the Vrrm rating can lead to breakdown and failure of the component, so it is essential to carefully consider this specification when designing or selecting components for a circuit.
600V - JEDEC-95 Code
JEDEC-95 Code is a standardized identification system used by the Joint Electron Device Engineering Council to categorize and describe semiconductor devices. This code provides a unique alphanumeric identifier for various memory components, ensuring consistency in documentation and communication across the electronics industry. The format includes information about the type, capacity, and technology of the device, facilitating easier specification and understanding for manufacturers and engineers.
TO-220AB - RMS Current (Irms)
RMS Current (Irms) refers to the Root Mean Square value of the alternating current flowing through an electronic component or circuit. It is a measure of the effective current that produces the same heating effect as the equivalent DC current. In AC circuits, the current continuously changes direction, so using the RMS value helps in calculating power dissipation and determining the component's capability to handle the current without overheating. RMS Current is crucial in selecting components like resistors, capacitors, and inductors to ensure they can safely operate within their specified current ratings.
12A - Hold Current
the minimum current which must pass through a circuit in order for it to remain in the 'ON' state.
30mA - Trigger Device Type
Trigger Device Type is a parameter in electronic components that refers to the type of device or mechanism used to initiate a specific action or function within the component. This parameter specifies the specific trigger device, such as a sensor, switch, or signal input, that is required to activate or control the operation of the component. Understanding the trigger device type is crucial for proper integration and operation of the electronic component within a larger system or circuit. By specifying the appropriate trigger device type, engineers and designers can ensure that the component functions correctly and responds to the intended input signals or conditions.
SCR - Voltage - Gate Trigger (Vgt) (Max)
Voltage - Gate Trigger (Vgt) (Max) refers to the maximum voltage level required to trigger the gate of a semiconductor device, such as a thyristor or triac, into the conductive state. When the gate receives this voltage, it initiates the device's conduction, allowing current to flow between its anode and cathode. Exceeding this voltage can lead to unwanted behavior or damage to the component, making it a critical parameter in designing circuits that utilize these devices. Understanding Vgt is essential for ensuring proper operation and reliability in electronic applications.
1.3V - Current - Non Rep. Surge 50, 60Hz (Itsm)
The parameter "Current - Non Rep. Surge 50, 60Hz (Itsm)" in electronic components refers to the maximum non-repetitive surge current that a component can withstand without damage during a single surge event at frequencies of 50Hz or 60Hz. This parameter is important for assessing the robustness and reliability of the component in handling sudden spikes or surges in current that may occur in the electrical system. It helps in determining the level of protection needed for the component to ensure its longevity and proper functioning in various operating conditions. Manufacturers provide this specification to guide engineers and designers in selecting the appropriate components for their applications based on the expected surge current levels.
140A 145A - Current - Gate Trigger (Igt) (Max)
Current - Gate Trigger (Igt) (Max) refers to the maximum gate trigger current required to activate a semiconductor device, such as a thyristor or triac. It is the minimum current that must flow into the gate terminal to ensure that the device turns on and conducts current between its anode and cathode. Exceeding this value can lead to unnecessary power consumption, while insufficient current may prevent the device from turning on effectively. This parameter is crucial for circuit design, as it influences the selection of gate driving circuits.
15mA - Current - Hold (Ih) (Max)
The parameter "Current - Hold (Ih) (Max)" in electronic components refers to the maximum current required to maintain the component in a latched or on-state after it has been triggered. This parameter is commonly associated with relays, switches, and other devices that have a latching function. It is important because it determines the minimum current that must be supplied to keep the component in its activated state, ensuring reliable operation. Exceeding the maximum Ih value can lead to the component failing to hold its state, potentially causing malfunctions or disruptions in the circuit.
30mA - Leakage Current (Max)
Leakage Current (Max) is a parameter that specifies the maximum amount of current that can flow through an electronic component when it is in an off state. It represents the amount of current that leaks through the component due to imperfections in its insulation or semiconductor materials. Excessive leakage current can lead to power loss, reduced efficiency, and potential reliability issues in electronic circuits. Manufacturers provide this specification to help designers ensure that the leakage current does not exceed acceptable limits for the intended application. It is typically measured in microamps (μA) or nanoamps (nA) and is an important consideration in low-power and high-precision electronic designs.
2mA - Current - On State (It (AV)) (Max)
The parameter "Current - On State (It (AV)) (Max)" in electronic components refers to the maximum average current that a component, typically a switch or semiconductor device, can handle while in the 'on' state without overheating or failing. This rating is crucial for ensuring reliable operation in circuits where the component is subjected to continuous current flow. Exceeding this maximum value can lead to damage or malfunction, so it is important for designers to consider it when selecting components for their applications.
8A - Non-Repetitive Pk On-state Cur
Non-Repetitive Pk On-state Current, often abbreviated as Non-Repetitive Pk On-state Cur, is a parameter that defines the maximum current that a semiconductor device, such as a thyristor or triac, can withstand for a short duration without sustaining damage. This current level is typically specified under particular conditions and is meant to represent transient events rather than continuous operation. It indicates the device's ability to handle sudden surges in current, which may occur due to load changes or fault conditions, while ensuring that the component does not suffer thermal or electrical breakdown during this brief period.
146 A - SCR Type
SCR Type refers to a category of semiconductor devices specifically designed to control and manage electrical energy in electronic circuits. It stands for Silicon Controlled Rectifier, which is a type of thyristor that can switch and control voltage and current flow. SCRs are commonly used in applications such as motor control, power regulation, and lighting control due to their ability to handle high power loads. The SCR Type includes variations like standard SCRs, gate turn-off thyristors, and triacs, each serving specific purposes in power electronics.
Standard Recovery - Voltage - On State (Vtm) (Max)
The parameter "Voltage - On State (Vtm) (Max)" refers to the maximum voltage drop across a semiconductor device when it is in the on state and conducting current. It is a critical specification for devices such as transistors, diodes, and thyristors, as it affects the overall power loss and efficiency of the component during operation. A lower Vtm value indicates better efficiency, as it leads to reduced power dissipation in the form of heat. This parameter is essential for engineers to consider when designing circuits that require low voltage drops for optimal performance.
1.6V - Critical Rate of Rise of Off-State Voltage-Min
The parameter "Critical Rate of Rise of Off-State Voltage-Min" in electronic components refers to the minimum rate at which the off-state voltage of a device must rise in order to trigger a critical event, such as a breakdown or failure. This parameter is crucial for ensuring the reliable operation of the component under various conditions. It helps determine the maximum allowable rate of voltage increase that the component can withstand without experiencing detrimental effects. Manufacturers specify this parameter to guide engineers and designers in selecting and using the component within its safe operating limits to prevent damage or malfunction. Understanding and adhering to this parameter is essential for maintaining the performance and longevity of electronic devices.
200V/us - Current - Off State (Max)
The parameter "Current - Off State (Max)" refers to the maximum current that can flow through an electronic component when it is in the off state, typically when the component is not conducting electricity. This specification is important for components such as transistors, diodes, and switches, as it indicates the maximum leakage current that can occur when the component is supposed to be non-conductive. Exceeding this maximum off-state current can lead to unintended power consumption, overheating, or malfunction of the component. Designers need to consider this parameter to ensure proper functioning and reliability of the electronic circuit.
5μA - Height15.75mm
- Length10.4mm
- Width4.6mm
- REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - Radiation Hardening
Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.
No - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
TYN612 Feature
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
TYN612 Application
Power Control
Switching
Zero voltage switching
Over-voltage protection
Pulse circuit
Battery Charging regulator
TYN612 Equivalent
The equivalent for TYN612:
TN1215
TYN612
TYN812
TYN1012
Where to use TYN612
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.
How to use TYN612
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.
TYN612 Package


TYN612 Package
TYN612 Manufacturer
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.
Datasheet PDF
- Datasheets :
TYN612RG-STMicroelectronics-datasheet-45325097.pdf
TYN612RG-STMicroelectronics-datasheet-10412685.pdf
TYN612RG-STMicroelectronics-datasheet-7614936.pdf
TYN612RG-STMicroelectronics-datasheet-14063766.pdf
TYN612RG-STMicroelectronics-datasheet-109758.pdf
TYN612RG-STMicroelectronics-datasheet-7934.pdf
pid_4797394_tyn612rg-stmicroelectronics-datasheet-67322206.pdf
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