SA801F DCS Bi-directional controlled thyristors module

Overview of Bi-Directional Control Thyristors

Bi-directional control thyristors, commonly known as TRIACs (TRIode for Alternating Current), are semiconductor devices capable of conducting current in both directions when triggered. They are widely used in alternating current (AC) applications for controlling power delivered to a load. TRIACs enable phase control, which allows for the regulation of electrical power by switching the device on or off at specific points in the AC cycle. This makes them ideal for applications such as dimming lights, speed control of motors, and temperature control in heating elements.

Features of Bi-Directional Control Thyristors

Bidirectional Conductivity: Can conduct current in both directions, making them suitable for AC circuits.

Phase Control: Allows precise control over the point in the AC cycle when the device turns on, enabling power regulation.

Compact Design: Small size facilitates integration into various electronic devices and systems.

High Efficiency: Minimizes power losses during operation, contributing to efficient power management.

Low Trigger Current: Requires only a small current to turn on, simplifying control circuit design.

Rugged Construction: Designed to withstand high surge currents and transient voltages.

Wide Operating Voltage Range: Compatible with a variety of voltage levels, enhancing application flexibility.

Cost-Effective: Provides an economical solution for AC power control needs.

Simple Control Mechanism: Easy to operate with basic gate signals, reducing complexity in control systems.

Protection Features: Often include built-in protection against overvoltage and thermal overload conditions.

(SA801F DCS Bi-directional controlled thyristors module)

Specification of SA801F DCS Bi-directional controlled thyristors module

The SA801F DCS Bi-directional Controlled Thyristor Module is a high-performance semiconductor device designed for efficient power control in AC applications. It combines two anti-parallel thyristors in a single module, enabling bidirectional current flow and precise control of voltage and current in alternating current circuits. This module is engineered for reliability, durability, and high-power handling, making it ideal for industrial and commercial applications.

**Key Specifications:**
– **Voltage Ratings:** The module supports a maximum repetitive off-state voltage (V_DRM) of 800V and a maximum reverse voltage (V_RRM) of 800V, ensuring robust performance in high-voltage environments.
– **Current Ratings:** It features an RMS on-state current (I_T(RMS)) of 80A and an average on-state current (I_TAV) of 50A, with a non-repetitive surge current (I_TSM) of 800A (10ms half-sine wave), providing high surge capability for demanding loads.
– **Gate Trigger Parameters:** The gate trigger current (I_GT) is 50mA max, and gate trigger voltage (V_GT) is 2.5V max, ensuring low-power control requirements. The holding current (I_H) is 50mA min.
– **Thermal Performance:** With a junction-to-case thermal resistance (R_th(j-c)) of 0.25°C/W, the module efficiently dissipates heat. It operates within a junction temperature range of -40°C to +125°C, suitable for harsh environments.
– **Isolation Voltage:** The isolation voltage between the module and heatsink is 2500V RMS, enhancing safety and compliance with electrical standards.

**Applications:** The SA801F is widely used in motor speed control, temperature regulation, lighting systems, AC power switching, and industrial automation. Its bidirectional control makes it suitable for phase-angle control, soft starters, and solid-state relays.

**Features:**
– Compact, insulated package design for easy mounting and thermal management.
– Low gate drive requirements simplify control circuitry.
– High noise immunity and robust construction for industrial environments.
– Compliant with RoHS and international safety standards (UL, IEC).

**Package Details:** The module is housed in a screw-terminal, epoxy-resin insulated case, ensuring mechanical stability and electrical isolation. Dimensions and weight are optimized for space-constrained installations.

The SA801F DCS module delivers precision, efficiency, and longevity, making it a versatile solution for AC power control across diverse industries.

(SA801F DCS Bi-directional controlled thyristors module)

Applications of SA801F DCS Bi-directional controlled thyristors module

The SA801F DCS Bi-directional Controlled Thyristors Module is a high-performance semiconductor device designed for efficient power control and switching in AC systems. Its bi-directional current capability allows precise management of alternating current, making it ideal for applications requiring variable power adjustment, phase control, and reliable switching. The module’s robust design ensures high voltage and current handling, thermal stability, and durability in demanding environments. Below are key applications of the SA801F module across industries.

**Motor Speed Control**: The SA801F is widely used in industrial motor drives, such as HVAC systems, conveyor belts, and pumps. By adjusting the phase angle of AC voltage, it enables smooth speed regulation, reducing energy consumption and mechanical stress.

**Lighting Systems**: In dimming circuits for LED arrays, stage lighting, and streetlights, the module provides flicker-free intensity control. Its fast switching ensures responsive adjustments while maintaining energy efficiency.

**Temperature Regulation**: The thyristor module is integral to electric heating systems in industrial furnaces, ovens, and soldering equipment. It maintains precise temperature control by modulating power to heating elements.

**Power Supplies**: The SA801F enhances AC/DC converter efficiency by enabling soft-start functions and voltage stabilization, reducing inrush currents and protecting sensitive electronics.

**Renewable Energy Systems**: In solar inverters and wind turbine pitch control systems, the module manages power flow between renewable sources and grids, ensuring stable energy conversion and grid synchronization.

**Industrial Automation**: Integrated into PLCs and robotics, it drives actuators, solenoid valves, and machinery with high precision, supporting automated processes in manufacturing.

**Home Appliances**: Used in washing machines, microwaves, and air conditioners, the module optimizes motor speeds and heating cycles, improving performance and energy savings.

The SA801F’s compact design, high reliability, and adaptability to harsh conditions make it a versatile solution for modern power control challenges. Its ability to minimize electromagnetic interference (EMI) further enhances compliance with industrial standards, ensuring safe operation across diverse applications. By delivering precise control and energy efficiency, the SA801F DCS module supports advancements in automation, sustainability, and smart technology integration.

Company Profile

PDDN Photoelectron Technology 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 SA801F DCS Bi-directional controlled thyristors module, 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 SA801F DCS Bi-directional controlled thyristors module

The SA801F DCS Bi-directional Controlled Thyristor Module is designed for high-efficiency AC power control in industrial and commercial applications. Below are five common FAQs with direct answers:

**1. What are the primary applications of the SA801F module?**
The SA801F is ideal for AC load switching, motor speed regulation, industrial heating systems, lighting control, and energy management in automation. It enables precise phase-angle control in bidirectional AC circuits, making it suitable for equipment like soft starters, dimmers, and power regulators.

**2. What are the voltage and current ratings of the SA801F?**
The module typically supports a maximum blocking voltage of 800V (VDRM/VRRM) and an average current rating of 80A (ITAV). Surge current handling can reach up to 1000A for short durations, ensuring robustness against inrush currents during startup or faults.

**3. How is thermal management addressed in this module?**
Efficient heat dissipation is critical. The SA801F requires an external heatsink with a thermal resistance below 0.5°C/W. Proper mounting using thermal grease and torque specifications ensures optimal heat transfer. The operational junction temperature range is -40°C to +125°C, but sustained operation above 110°C may reduce lifespan.

**4. What protection features are included?**
The module includes built-in snubber circuits for voltage spike suppression. However, external protection like fast-acting fuses, RC snubbers, or MOVs (Metal Oxide Varistors) is recommended for overvoltage and overcurrent scenarios. Insulated construction minimizes risks of short circuits.

**5. How is the SA801F triggered and controlled?**
The thyristor is triggered via a low-voltage gate pulse (typically 3-5V DC) with a gate current of 50-100mA. It integrates seamlessly with digital controllers, PLCs, or microprocessors. Opto-isolated drivers are advised to prevent noise interference in sensitive control circuits. Triggering modes include phase-angle or zero-crossing, depending on application needs.

The SA801F offers reliability, high power handling, and compatibility with modern control systems, making it a versatile solution for dynamic AC power management.

(SA801F DCS Bi-directional controlled thyristors module)