Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94

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.

(Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94)

Specification of Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94

The Stud Thyristor ST280S T0-94 is a high-power phase-controlled rectifier designed for robust changing and specific control in industrial applications. It features a stud-type TO-94 plan, enhanced for efficient thermal management and mechanical stability sought after settings. This thyristor is optimal for AC/DC power conversion, motor rate control, voltage policy, and heavy-duty rectification systems.

Secret electrical specs include a repetitive height off-state voltage (V_DRM) and reverse voltage (V_RRM) of approximately 1600V, guaranteeing trusted blocking of high voltages in both forward and reverse prejudice conditions. The average on-state current (I_TAV) is ranked at 280A, with a non-repetitive rise current (I_TSM) of 5600A, making it possible for handling of sudden overloads. Eviction trigger present (I_GT) is 200mA, paired with a gate trigger voltage (V_GT) of 3V, guaranteeing regular and low-power triggering. The device maintains a low on-state voltage decrease (V_T) of 1.6 V at ranked current, decreasing conduction losses.

Thermal efficiency is critical, with a junction-to-stud thermal resistance (R_thJS) of 0.05 ° C/W, allowing reliable heat dissipation when placed on a heatsink. The operating junction temperature level array covers -40 ° C to +125 ° C, guaranteeing functionality in severe conditions. Mechanical requirements include a stud diameter of 14mm, compatible with conventional installing equipment, and a recommended mounting torque of 25– 30 Nm to make certain safe mechanical and electric contact.

The ST280S T0-94 is developed with a silicon pellet hermetically sealed in a corrosion-resistant package, improving resilience in harsh settings. Applications consist of commercial electric motor drives, welding tools, UPS systems, and power materials. Conformity with worldwide requirements such as RoHS and UL makes sure security and ecological compatibility. Developed for high dependability and long service life, this thyristor is matched for engineers needing precision, effectiveness, and ruggedness in high-current phase-controlled correction circuits.

(Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94)

Applications of Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94

The Stud Thyristor ST280S in a TO-94 bundle is a high-power semiconductor tool made for phase-controlled correction and changing applications. Its durable building, incorporated with innovative thyristor modern technology, makes it suitable for industrial and commercial systems needing accurate control of air conditioning power. The device includes a stud-type style for safe mechanical placing and efficient warmth dissipation, guaranteeing trustworthy efficiency under high-voltage and high-current problems. With a voltage score approximately 1600V and present handling abilities surpassing 280A, the ST280S excels in demanding settings.

A key application of the ST280S is in phase-controlled rectifiers, where it transforms AC to DC power in systems like electroplating, electrolysis, and industrial battery charging. Its ability to change conduction angles allows smooth control of result voltage and current, vital for processes requiring variable DC power. In motor speed control systems, the thyristor controls air conditioning electric motor drives by regulating power input, enhancing efficiency in machinery such as conveyor belts, crushers, and pumps.

The ST280S is also used in lighting control systems, including high-intensity discharge (HID) lamps and streetlight dimming. By phase-controlling the AC waveform, it changes light intensity while minimizing power waste. In welding equipment, the thyristor ensures secure arc generation by taking care of present flow, enhancing weld uniformity in both manual and computerized setups.

Furthermore, the device contributes in power payment systems, such as static VAR compensators (SVCs), where it stabilizes grid voltage and corrects power variable imbalances. Its rapid changing capability supports responsive power management in renewable resource inverters and commercial grids.

The TO-94 package uses toughness in harsh problems, with a threaded stud for straight heatsink installing, decreasing thermal resistance. This makes the ST280S ideal for high-temperature atmospheres like steel mills or mining procedures. Its tough style makes certain durability in applications entailing constant tons changes, voltage spikes, or mechanical stress.

In recap, the ST280S Stud Thyristor is a versatile service for phase-controlled power regulation across sectors, consisting of production, energy, and transportation. Its mix of high power handling, thermal effectiveness, and accurate control makes it a critical part in systems requiring dependability and performance under hefty electric lots.

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 Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94, 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 Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94

The ST280S is a phase-controlled thyristor rectifier in a TO-94 package designed for high-efficiency power control applications. Below are five frequently asked questions about this component, answered concisely:

**1. What are the primary applications of the ST280S thyristor?**
The ST280S is used in phase-controlled rectification circuits, such as AC/DC motor speed control, dimming systems, industrial power supplies, and voltage regulation. It is ideal for systems requiring precise control of power delivery through gate-triggered conduction.

**2. What are the key electrical specifications of the ST280S?**
The ST280S has a maximum repetitive reverse voltage (V_RRM) of 800V and an average forward current (I_T(AV)) of 8A. Its surge current (I_TSM) is 80A, and the gate trigger current (I_GT) ranges from 5mA to 30mA, ensuring reliable switching under varying load conditions.

**3. How does thermal management affect the ST280S’s performance?**
The thyristor’s junction temperature must stay below 125°C to prevent damage. Proper heatsinking and airflow are critical. The TO-94 package supports efficient heat dissipation, but derating may be required in high-temperature environments.

**4. What precautions are needed for mounting the ST280S?**
Avoid mechanical stress on the leads during installation. Ensure the mounting surface is clean and flat for optimal thermal contact. Use insulating kits if required. The terminals should be soldered at 260°C for no more than 10 seconds to avoid package damage.

**5. How do I protect the ST280S from voltage spikes or switching transients?**
Incorporate snubber circuits (RC networks) across the anode and cathode to suppress voltage spikes. Ensure the device operates within its specified dv/dt (rate of voltage change) rating of 50V/µs. Overvoltage protection devices like MOVs (metal oxide varistors) can also safeguard against surges.

The ST280S combines rugged construction with precise control, making it suitable for demanding industrial applications. Always adhere to datasheet guidelines for optimal performance and longevity.

(Stud thyristor thyristor rectifier phase controlled thyristor ST280S T0-94)