ABB 5STP28L4200 phase-controlled thyristor

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ABB 5STP28L4200 Phase-Controlled Thyristor

Introduction

The ABB 5STP28L4200 is a high-power phase-controlled thyristor (PCT) designed for high-voltage and high-current power electronic applications. It is widely used in HVDC transmission, high-power rectifiers, induction heating, motor drives, and soft starters.

This device features low conduction losses, high surge capability, and reliable press-pack construction, ensuring long-term stable performance in demanding environments.

Technical Specifications

• Model: 5STP28L4200

• Device Type: Phase-Controlled Thyristor (PCT)

• Package Type: Press-pack

• Repetitive Peak Off-State Voltage (V_DRM): 4200 V

• Average On-State Current (I_T(AV)): 2800 A (with proper cooling)

• Surge Current (I_TSM): ~65–70 kA (depending on pulse width)

• Gate Trigger Current (I_GT): Typical 150–200 mA

• On-State Voltage (V_T): ~1.6–2.0 V (at rated current)

• Operating Junction Temperature (T_j): -40℃ ~ +125℃

• Cooling Method: Forced air or water cooling

• Weight: ~450–600 g

• Certifications: IEC, RoHS

Features & Benefits

1. High Voltage Capability – Rated up to 4200 V for HV applications.

2. High Current Handling – Supports 2800 A average current.

3. Low Conduction Losses – Improves overall system efficiency.

4. High Surge Tolerance – Withstands extreme current surges.

5. Press-Pack Design – Ensures robust mechanical and electrical connection.

6. Long Service Life – Designed for reliable operation in harsh environments.

Applications

• HVDC Transmission Systems

• High Power Rectifiers

• Induction Heating Equipment

• Motor Drives & Soft Starters

• Arc Furnaces

• UPS & Power Quality Systems

Installation & Maintenance Notes

1. Clamping Force – Apply correct mechanical pressure for press-pack installation.

2. Thermal Management – Ensure adequate cooling (air or water).

3. Gate Drive – Use recommended gate drive circuits for reliable triggering.

4. Voltage Balancing – Use balancing resistors/capacitors in series applications.

5. Surge Protection – Include snubber circuits and proper fuses in the system.

6. Regular Monitoring – Check temperature and electrical performance periodically.

The structure and details of the product：

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