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Semikron SKT 760/16E IGBT Module

SEMIKRON SKT 760/16E: a robust 1600V/760A dual thyristor module. Glass passivated tech and isolated SEMIPACK® 3 package deliver superior reliability for AC power control.

· Categories: IGBT Module
· Manufacturer: Semikron
· Price: US$ 33
· Date Code: 2024+
. Available Qty: 510
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SKT 760/16E Specification

SEMIKRON SKT 760/16E | High-Reliability Thyristor Module for Robust Power Control

The SEMIKRON SKT 760/16E is an engineered solution for designers who demand uncompromising reliability and control in high-power AC applications. This dual thyristor module, housed in the industry-proven SEMIPACK® 3 package, provides a robust foundation for line-frequency power conversion and regulation systems where stability and longevity are paramount.

  • High Current Capability: Rated for an average on-state current (ITAV) of 760 A, ideal for controlling substantial electrical loads.
  • Superior Voltage Blocking: With a repetitive peak off-state voltage (VDRM/VRRM) of 1600 V, it offers a significant safety margin for mains-powered industrial equipment.
  • Robust Mechanical Design: Features an isolated baseplate made of aluminum oxide ceramic, simplifying thermal management and ensuring high electrical isolation.
  • Proven Reliability: Leverages glass passivated thyristor technology for stable blocking characteristics and enhanced performance over a long operational life.

Application Scenarios & Value Proposition

The SKT 760/16E is not a high-frequency switch; it is a high-power controller. Its design excels in applications where precise, reliable control of AC power is the primary engineering challenge. This focus makes it the component of choice for systems that form the backbone of industrial infrastructure.

  • AC Motor Soft Starters: By precisely phasing back the thyristors, the SKT 760/16E can smoothly ramp up the voltage to large induction motors. This controlled start-up prevents severe mechanical shock on gearboxes and dramatically reduces inrush currents, protecting the electrical grid and extending motor life.
  • Controlled Rectifiers for DC Supplies: When configured as a controlled bridge, this module enables the creation of high-power, variable DC voltage sources. This is critical for applications like industrial electroplating, battery charging systems, and DC motor drives where the output must be precisely regulated.
  • Industrial Temperature Control: For large-scale heating elements and industrial furnaces, the module facilitates precise power delivery through phase-angle or burst-fire control. Its high thermal cycling capability ensures reliability even with frequent power adjustments.
  • Static AC Switches (AC Controllers): In applications requiring the switching of heavy AC loads, the SKT 760/16E provides a solid-state alternative to failure-prone mechanical contactors, offering silent operation and a vastly extended service life.

Technical Deep Dive: The Engineering Behind the Reliability

Two core features define the performance and durability of the SEMIKRON SKT 760/16E: its internal silicon technology and its external packaging. Understanding these is key to appreciating its value in demanding environments.

First, the use of Glass Passivated Thyristors is a critical choice for long-term stability. The glass layer hermetically seals the sensitive PN junctions of the thyristor die from ambient contaminants and moisture. This process prevents degradation of the voltage blocking capability over time, a common failure mode in lesser components. For an engineer, this translates directly to predictable performance and reduced maintenance requirements in systems deployed for decades.

Second, the SEMIPACK® 3 Package is engineered for both thermal efficiency and mechanical robustness. Its isolated baseplate simplifies mounting onto a heatsink, eliminating the need for separate, often unreliable, insulating materials. This integrated isolation improves the consistency of the Thermal Resistance path from junction to heatsink, a crucial factor in managing heat in 760A applications. For more insight on thermal performance, see our guide on why R(th) matters.

Key Parameter Overview

The following table outlines the critical electrical and thermal specifications for the SKT 760/16E. For a comprehensive list of parameters and characteristic curves, please download the official SEMIKRON datasheet.

ParameterSymbolValue
Repetitive Peak Off-State VoltageVDRM, VRRM1600 V
Average On-State Current (Tcase = 76°C)ITAV760 A
RMS On-State Current (Tcase = 70°C)ITRMS1200 A
Surge On-State Current (10 ms, 50 Hz)ITSM15500 A
On-State Voltage (IT = 2400 A, Tj = 130°C)VT(TO)1.85 V (Max)
Isolation Test VoltageVISOL3000 V (AC, 1 min.)
Operating Junction Temperature RangeTj-40 to +130 °C

Engineer's FAQ

Is the SKT 760/16E an IGBT?

No, this is a common point of confusion. The SKT 760/16E is a Thyristor (or Silicon-Controlled Rectifier, SCR) module. While both are power semiconductors, their operation and applications differ significantly. Thyristors are current-controlled, latching devices ideal for low-frequency (line frequency) AC phase control and rectification. In contrast, IGBT modules are voltage-controlled transistors designed for high-frequency switching, as seen in modern Variable Frequency Drives (VFDs) and solar inverters. For a detailed comparison, explore our guide to power semiconductor selection.

What is the primary advantage of the dual thyristor configuration?

The dual thyristor (AC controller) topology in a single module is highly efficient for building single-phase AC controllers or one leg of a three-phase controlled rectifier. It simplifies the busbar layout, reduces component count, and ensures that the two devices have closely matched thermal and electrical characteristics, which is crucial for balanced and reliable operation.

For systems that require brute-force power handling with exceptional durability, the SEMIKRON SKT 760/16E provides a field-tested, reliable core component. If your design involves high-power rectification, soft starting, or static AC switching, this module delivers the performance and longevity required for critical industrial systems. For detailed application support or to discuss your specific design challenges, please contact our technical team.

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