SEMIKRON SKKT 500/16E Thyristor Module 1.6KV 500A
The SKKT 500/16E is a high-power dual-thyristor (SCR) module by SEMIKRON, designed for demanding industrial power-control applications. It integrates two series-connected SCRs in a single SEMIPACK 5 package, allowing bidirectional AC control or rectification at high voltage (1.6 kV) and heavy current (hundreds of amps) levels. The module is built on an aluminium-nitride (AlN) insulated metal baseplate, which efficiently conducts heat to an external heatsink while keeping the semiconductor junctions electrically isolated.
Internal precision metal pressure contacts (typically using silver or gold alloys) ensure reliable, low-resistance connections even under repeated thermal cycling. According to the manufacturer, this design yields high electrical and thermal cycling endurance for long operational life. Gate and cathode terminals are provided for each thyristor, enabling integration with standard gate-drive circuits.
Overall, the SKKT 500/16E serves as a rugged building block for high-current AC/DC converters, motor drive regulators, and similar power-electronic systems, providing robust switching and control without requiring discrete SCRs or separate assemblies.
Features:
- Dual thyristor topology: Thyristor–thyristor (series-connected SCRs) configuration in one module.
- Rugged thermal design: AlN ceramic-insulated metal baseplate for efficient heat dissipation.
- Reliable contacts: Precious-metal pressure contacts ensure low-loss, high-reliability connections.
- UL-certified package: UL-recognized SEMIPACK®5 housing (UL file E 63 632) for industry-standard safety.
- High cycling endurance: Engineered for high electrical and thermal cycling capability (long service life).
- Industry-standard format: Encased in a 150×60×52 mm SEMIPACK 5 module for easy integration.
Specifications:
| Parameter | Value |
|---|---|
| Repetitive peak reverse voltage (V_RRM): | 1600 V |
| Average forward current (I_TAV): | 500 A (T_case = 89 °C) |
| Surge on-state current (I_TSM, 10 ms): | 15000 A |
| Threshold voltage (V_T): | 0.925 V |
| On-state resistance (r_T): | 0.27 mΩ |
| Gate trigger current (I_GT): | 200 mA @ 25 °C |
| Turn-off time (t_q): | 200 µs (max.) |
| Thermal resistance Rth(j–c): | 0.065 °C/W |
| Operating junction temperature (T_vj): | –40 … +130 °C |
| Weight: | 1420 g |
| Package: | (150×60×52 mm) |
Dimensions of thyristor modules SKKT 500/16E:
Applications:
- AC motor drives and soft starters.
- AC–DC rectifier front ends (inverter/converter input).
- DC motor control systems.
- Industrial heating/temperature controllers (ovens, furnaces).
- Welding equipment and high-power converters.
Package Contents:
- 1x SEMIKRON SKKT 500/16E Thyristor Module 1.6KV 500A
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