Phase control thyristor TECHSEM Y50KPE KT50cT KP1200A 1200V-1800V AC/DC motor control Phase control rectifier Ordinary thyristor

Overview of Phase Control Thyristor

A phase control thyristor, often referred to as a triac or SCR (Silicon Controlled Rectifier) in certain applications, is a semiconductor device used for controlling the amount of power delivered to a load by adjusting the phase angle at which the AC waveform is allowed to conduct. This method of control is known as phase angle control or simply phase control. Phase control thyristors are widely used in various applications that require precise regulation of electrical power, such as lighting dimmers, motor speed controls, temperature controllers, and more.

Features of Phase Control Thyristor

Phase Angle Control: Allows adjustment of the conduction point within each half-cycle of the AC waveform, enabling precise control over the average power delivered to the load.

High Efficiency: Operates with minimal losses when conducting, providing efficient power control.

Bidirectional Conductivity (Triacs): For AC applications, triacs can conduct current in both directions, making them suitable for full-wave control of AC loads.

Unidirectional Conductivity (SCRs): SCRs conduct current in one direction only and are typically used for half-wave control of AC or DC loads.

Gate Triggering: Conduction begins when a small current is applied to the gate terminal, allowing for easy control of the turn-on point.

Latching Current: Once triggered, the thyristor continues to conduct until the current through it falls below a certain level called the holding current.

Temperature Sensitivity: Performance can be affected by temperature changes, requiring thermal management considerations in design.

Voltage and Current Ratings: Available in a wide range of voltage and current ratings to suit different application needs.

Noise Generation: Can generate electromagnetic interference (EMI), necessitating proper filtering and shielding in sensitive applications.

Protection Mechanisms: Often include built-in protection against overvoltage and overcurrent conditions to safeguard the device and connected systems.

(Phase control thyristor TECHSEM Y50KPE KT50cT KP1200A 1200V-1800V AC/DC motor control Phase control rectifier Ordinary thyristor)

Specification of Phase control thyristor TECHSEM Y50KPE KT50cT KP1200A 1200V-1800V AC/DC motor control Phase control rectifier Ordinary thyristor

The TECHSEM Y50KPE KT50cT KP1200A is a high-power phase control thyristor designed for demanding industrial applications requiring precise control of AC/DC motors, phase-controlled rectifiers, and power regulation systems. This ordinary thyristor (SCR) operates at a voltage range of 1200V to 1800V and handles continuous forward current up to 1200A, making it suitable for heavy-duty industrial environments. Its robust construction ensures reliable performance in high-voltage, high-current scenarios such as motor drives, power supplies, and industrial rectification circuits. Key specifications include a peak repetitive reverse voltage (Vrrm) and forward blocking voltage (Vdrm) of 1200V to 1800V, ensuring stable operation under transient voltage spikes. The device features a low thermal resistance junction-to-case (Rθjc) of 0.05°C/W, enabling efficient heat dissipation and a maximum junction temperature of 125°C for prolonged operational life. Switching parameters include a gate trigger current (Igt) of 150mA and gate trigger voltage (Vgt) of 3V, ensuring precise control with minimal gate drive requirements. The holding current (Ih) is 200mA, while the latching current (Il) is 300mA, providing stable conduction once activated. Surge current capability reaches 20kA (non-repetitive) for 10ms, allowing tolerance to short-circuit conditions. The thyristor is housed in a stud-mount package with a ceramic insulator, ensuring mechanical durability and easy integration into heatsink assemblies. Compliance with international standards such as IEC, UL, and RoHS guarantees safety and environmental compatibility. Applications include motor speed control in industrial machinery, voltage regulation in power transmission, and rectification in steel, mining, and renewable energy systems. Benefits include high surge tolerance, low power loss, and precise phase-angle control for optimized energy efficiency. The device’s rugged design ensures reliability in harsh conditions, with an operating temperature range of -40°C to +125°C. With its combination of high voltage/current ratings, thermal efficiency, and robust construction, the TECHSEM Y50KPE is a critical component for industrial power control systems requiring durability and precision.

(Phase control thyristor TECHSEM Y50KPE KT50cT KP1200A 1200V-1800V AC/DC motor control Phase control rectifier Ordinary thyristor)

Applications of Phase control thyristor TECHSEM Y50KPE KT50cT KP1200A 1200V-1800V AC/DC motor control Phase control rectifier Ordinary thyristor

The TECHSEM Y50KPE KT50cT KP1200A is a high-performance phase control thyristor designed for robust and precise power management in AC/DC motor control, rectification, and industrial automation systems. With a voltage rating of 1200V to 1800V and a current capacity of 1200A, this ordinary thyristor excels in high-power applications requiring reliable switching and efficient energy regulation. Its rugged construction and advanced thermal management make it suitable for demanding environments, including heavy machinery, industrial drives, and power supply units.

**Key Applications:**
1. **AC/DC Motor Control:** The thyristor enables precise speed and torque control in motors used in industrial equipment such as conveyor systems, cranes, and rolling mills. By adjusting the phase angle of AC voltage, it optimizes power delivery to motors, enhancing efficiency and reducing mechanical stress during startup or load variations.
2. **Phase-Control Rectifiers:** It serves as a core component in converting AC to DC power in electroplating, welding machines, and battery charging systems. The device ensures smooth, adjustable DC output, critical for processes requiring stable voltage and current levels.
3. **Industrial Heating Systems:** Used in temperature regulation for induction furnaces and resistive heating units, the thyristor manages power flow to maintain consistent thermal output.
4. **Renewable Energy Integration:** Supports grid-tied inverters and energy storage systems by regulating power conversion and improving grid stability.
5. **Traction Systems:** Applied in electric locomotives and metro systems for controlling traction motors and auxiliary power units.

**Features & Benefits:**
– **High Surge Tolerance:** Withstands short-term overloads and voltage spikes, ensuring reliability in unstable power grids.
– **Low Forward Voltage Drop:** Minimizes energy loss, improving system efficiency.
– **Robust Thermal Performance:** Engineered for efficient heat dissipation, enabling continuous operation in high-temperature environments.
– **Long Lifespan:** Built with durable materials to reduce maintenance cycles and downtime.

Ideal for industries like steel production, mining, and transportation, the TECHSEM Y50KPE KT50cT KP1200A combines precision, durability, and scalability, making it a cornerstone for modern power electronics. Its ability to handle extreme currents and voltages while maintaining stability ensures seamless integration into complex control systems, driving productivity and energy savings.

Company Profile

Luoyang Datang Energy Tech Co.Ltd(sales@pddn.com) is one of the leading enterprises in power electronics technology and power products, which is fully involved in developing solar inverters， transformers, voltage regulators, distribution cabinets, thyristors， modules， diodes， heaters, and other electronic devices or semiconductors. We will be committed to providing users with high-quality, efficient products and considerate service.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. If you want high-quality Phase control thyristor TECHSEM Y50KPE KT50cT KP1200A 1200V-1800V AC/DC motor control Phase control rectifier Ordinary thyristor, please send us inquiries; we will be here to help you.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

5 FAQs of Phase control thyristor TECHSEM Y50KPE KT50cT KP1200A 1200V-1800V AC/DC motor control Phase control rectifier Ordinary thyristor

The TECHSEM Y50KPE KT50cT KP1200A is a high-power phase-control thyristor designed for AC/DC motor control and rectifier applications. Below are five frequently asked questions about this component:

**1. What are the primary applications of this thyristor?**
This thyristor is optimized for phase-control circuits in AC/DC motor speed controllers, industrial rectifiers, and power regulation systems. It handles high-voltage (1200V–1800V) and high-current (up to 1200A average) loads, making it suitable for heavy-duty machinery, welding equipment, and traction systems.

**2. What are the voltage and current ratings?**
The device operates at a repetitive peak off-state voltage (V_DRM) of 1200V to 1800V and an average forward current (I_TAV) of 1200A. The surge current capability (I_TSM) is exceptionally high, ensuring reliability during transient overloads. Always verify system requirements to match these ratings.

**3. How is heat dissipation managed?**
Efficient thermal management is critical. The thyristor must be mounted on a heatsink with proper thermal interface material. Its low thermal resistance (R_th) design minimizes junction temperature rise. For prolonged life, ensure operating temperatures stay within -40°C to 125°C and derate current at higher ambient temperatures.

**4. Can it replace older thyristor models?**
Yes, it is backward-compatible with standard KP-series thyristors (e.g., KP1000A, KP1500A) in similar voltage classes. However, confirm gate trigger parameters (V_GT, I_GT) and dynamic characteristics (turn-on/time) to ensure compatibility with existing driver circuits.

**5. What protection measures are recommended?**
Use snubber circuits to limit voltage spikes (dV/dt) and RC networks to suppress switching transients. Overcurrent protection via fuses or circuit breakers is mandatory. Ensure proper gate drive isolation and shielding to avoid unintended triggering in noisy environments. Regularly inspect for mechanical stress or contamination.

This thyristor combines rugged construction with high reliability for demanding industrial environments. Always adhere to the datasheet specifications and application guidelines to maximize performance and lifespan.

(Phase control thyristor TECHSEM Y50KPE KT50cT KP1200A 1200V-1800V AC/DC motor control Phase control rectifier Ordinary thyristor)