Semikron SKKH106/16E Thyristor Module | Robust Power Control for Industrial Drives
The Semikron SKKH106/16E is not just a component; it's a cornerstone for building robust and reliable high-power control systems. As a thyristor half-bridge module in the industry-proven SEMIPACK® 1 package, it provides a straightforward and rugged solution for phase angle control in demanding industrial environments. It is engineered for applications where precise regulation of high currents and voltages is paramount, moving beyond simple on/off switching to offer nuanced power delivery.
Technical Deep Dive: The Foundation of Reliability
- Glass Passivation Technology: At the heart of the SKKH106/16E's resilience are its glass passivated thyristor chips. This process involves applying a hermetic layer of glass over the semiconductor junctions. The practical benefit? Superior blocking voltage stability, especially at high operating temperatures, and significantly reduced sensitivity to environmental factors like humidity. This translates directly to a longer operational lifespan and predictable performance, minimizing unexpected field failures in critical systems.
- SEMIPACK® 1 Isolated Package: The module utilizes an industry-standard package with an isolated baseplate. This design simplifies mechanical assembly by allowing multiple modules to be mounted onto a single, non-isolated heatsink, drastically reducing complexity and assembly costs. The integrated direct bonded copper (DBC) substrate ensures excellent thermal transfer from the chips to the heatsink, a critical factor for managing heat in high-current applications like motor soft starters and controlled rectifiers.
Application Scenarios: Where the SKKH106/16E Excels
This thyristor module is engineered to solve specific challenges across various high-power applications:
- AC Motor Soft Starters: When starting large induction motors, the initial inrush current can cause voltage sags and severe mechanical stress on couplings and gearboxes. By using the Semikron SKKH106/16E in a back-to-back SCR topology, engineers can precisely ramp up the voltage supplied to the motor. This gradual start-up mitigates electrical and mechanical shock, extending the lifetime of the entire drive system.
- Industrial Furnace and Heating Control: In processes requiring precise temperature regulation, such as annealing or chemical processing, the SKKH106/16E enables highly accurate phase angle control. This allows for smooth, continuous adjustment of power to heating elements, avoiding the thermal cycling and overshoot associated with simple on/off contactors, leading to better product quality and energy efficiency.
- Controlled Rectifiers for DC Drives: For DC motor controls and high-current power supplies, this module serves as the core of a rugged and cost-effective controlled bridge rectifier. Its high voltage and current ratings make it ideal for converting AC input to a variable DC output, providing reliable torque and speed control for legacy or specialized DC motor applications.
Key Technical Parameters at a Glance
| Parameter | Value |
|---|---|
| Repetitive Peak Reverse Voltage (VRRM) | 1600 V |
| Average On-State Current (IT(AV)) | 106 A (@ Tcase = 85°C) |
| Surge a-state Current (ITSM) | 2500 A (@ 10 ms) |
| Gate Trigger Current (IGT) | max. 150 mA |
| Package | SEMIPACK® 1 |
For complete specifications, please refer to the official SKKH106/16E Datasheet.
Frequently Asked Questions (FAQ)
- How is this different from an IGBT module?While both control power, they operate differently. The SKKH106/16E is a thyristor (SCR) module, ideal for line-frequency (50/60Hz) phase control applications like dimmers and soft starters. An IGBT is a high-frequency switch, used in applications like variable frequency drives (VFDs) and solar inverters. For a deeper dive into power device differences, see discussions comparing IGBT vs. MOSFET and other technologies.
- What are the key mounting considerations for this module?For optimal thermal performance, ensure a flat, clean heatsink surface and apply a thin, even layer of thermal compound. Use the specified torque for the mounting screws to guarantee good thermal contact without inducing mechanical stress on the ceramic substrate.
In an era of complex high-frequency switching, the Semikron SKKH106/16E stands as a testament to the enduring value of robust, proven technology for core industrial power electronics. For applications requiring steadfast control at the grid frequency, its simplicity and reliability are unmatched. If your system requires a different switching profile, feel free to explore more IGBT Modules in our catalog. For pricing and availability on this thyristor module, please contact us for a quote.
