ABB 5STP18H4200 thyristor

ABB 5STP18H4200 Thyristor – Product Information

1. Product Overview

The ABB 5STP18H4200 is a high-power, industrial-grade thyristor widely used in power electronics, AC/DC converters, and high-power control systems.
It features advanced semiconductor design, high current capability, low conduction loss, and fast response.
This thyristor is suitable for voltage regulation, motor drives, power transmission, industrial furnaces, and welding power supplies, serving as a critical power component in industrial power electronic systems.

2. Technical Specifications

• Model: 5STP18H4200

• Type: Thyristor

• Rated Voltage: 4200 V

• Rated Current: 1800 A RMS

• Peak Pulse Current: 36 kA

• Conduction Voltage Drop: ~1.8 V (typical)

• Turn-off Time: ≤ 10 μs

• Operating Temperature: -40 ℃ to +125 ℃

• Package Type: Modular or discrete, suitable for baseplate cooling

• Thermal Resistance: 0.02 ℃/W (junction-to-case, typical)

• Insulation Voltage: 1500 V AC

• Gate Drive: Gate-triggered

• Standards: IEC 60747-4-1

3. Features and Advantages

1. High Power Handling – Supports high-current and high-voltage industrial applications.

2. Fast Switching – Short turn-off time for high-frequency switching and precise control.

3. Low Conduction Loss – Reduces heat generation, improves efficiency, and lowers cooling requirements.

4. Reliable and Durable – High-quality semiconductor material and modular packaging for long-term operation.

5. Flexible Integration – Compatible with IGCT modules, rectifiers, and high-power inverter systems.

6. Harsh Environment Tolerance – Stable operation in high temperature, high humidity, and vibration conditions.

4. Application Areas

• AC/DC converters and high-power rectifiers

• Industrial motor drive systems

• High-power DC traction systems (e.g., subway, electric vehicles)

• Industrial furnace and arc furnace power control

• Power transmission and energy storage systems

• Welding power supplies and high-power load control

5. Precautions

1. Verify thyristor current and voltage ratings match system design before installation.

2. Disconnect power during wiring and installation to ensure safety.

3. Ensure proper cooling system operation to prevent overheating.

4. Use dedicated gate-trigger drive circuits to prevent misfiring.

5. Avoid exposure to high humidity, corrosive gases, or strong vibration.

6. Regularly inspect gate drive cables, cooling baseplates, and mounting bolts.

7. Do not modify the thyristor or package interfaces, as this may affect performance and safety.

The structure and details of the product：

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