STMicroelectronics Thyristor, 1.2kV, 40mA, 16A, TO-220AB

The STMicroelectronics Thyristor is a robust and reliable semiconductor designed for a broad spectrum of general-purpose power control and switching applications. Encased in a standard TO-220AB package, this 25A silicon-controlled rectifier (SCR) provides high surge current capability and stable performance under demanding conditions.

Key Features & Performance

This component offers a high repetitive peak off-state voltage (VDRM/VRRM) ranging from 600V to 1200V, with a maximum rating of 1.2kV, making it suitable for medium-voltage circuits. It requires a relatively low gate trigger current (IGT) of just 40mA for reliable switching initiation. The thyristor can handle an average on-state current of 16A and an RMS current of 25A, ensuring efficient power management in applications like motor controls, lighting systems, and heating elements.

Robust Construction & Safety

Built for durability, the device boasts a high peak non-repetitive surge current rating of 314A, providing excellent protection against transient overloads. It features a maximum gate trigger voltage of 1.3V and a holding current of 50mA, contributing to its stable latching behaviour. For critical safety and reliability, the product is UL1557 certified (file reference E81734), meeting stringent international standards for component safety.

Specifications & Design

The through-hole mounting design ensures a secure and permanent connection on printed circuit boards (PCBs), suitable for industrial and consumer electronics. With an operating temperature range extending up to 125°C, it maintains performance in environments with significant thermal stress. Its compact TO-220AB case style with three pins is a common and easily handled form factor, facilitating straightforward integration into existing designs and heat sinking solutions.