Semikron Danfoss Thyristor SCR Panel Mount 1600 V 391 A 250 mA 9 kA 1.65 V SKT 551/16 E

Semikron Danfoss SKT 551/16 E is an industrial-grade thyristor device classified as a Silicon-Controlled Rectifier (SCR) with a panel mount package type offering reliable performance for power control applications. This hermetically sealed device features a metal case with a ceramic insulator, enhancing durability and thermal management through its capsule design for double-sided cooling or single-sided shallow mounting.

This thyristor is rated for a repetitive peak reverse voltage of 1600 volts and capable of handling an average on-state current of 391 amperes, with surge currents up to 9 kiloamperes, ensuring resilience in demanding electrical environments. Its gate trigger current is capped at 250 milliamperes, with a holding current capability of 500 milliamperes, providing precise control during conduction phases.

Operating efficiently across a wide temperature range from -40°C to 125°C, it is suitable for industrial applications such as battery chargers, welding equipment, plating systems, regulated power supplies, and control circuits needing robust speed and temperature regulation.

The device’s three-pin configuration and panel mounting style facilitate straightforward installation while its peak on-state voltage of 1.65 volts maintains efficient conduction and switching performance. Manufactured in Germany, the SKT 551/16 E thyristor complies with stringent quality requirements to serve diverse sectors including industrial automation, HVAC controls, and manufacturing equipment.

Hermetic metal case with ceramic insulator enhances reliability and thermal management. Capsule package for double-sided cooling and shallow single-sided design. Repetitive peak reverse voltage of 1600 V with surge current rating of 9 kA.

Maximum gate trigger current of 250 mA and holding current of 500 mA. Wide operating temperature range from -40°C to 125°C. Panel mount type with 3-pin configuration for ease of installation. Peak on-state voltage of 1.65 V supports efficient current flow.

Designed for use in battery chargers, welders, plating equipment, and regulated power supplies. Suitable for industrial speed and temperature control circuits. Manufactured in Germany ensuring high standards and quality.

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