STMicroelectronics DIAC 45 V 2 A 2-Pin Through Hole DO-35 DB4

STMicroelectronics DB4 DIAC is a Discrete Semiconductor device designed to conduct current only after its breakover voltage threshold has been reached. This 2-pin DIAC operates with a maximum breakover voltage of 45 V and a repetitive peak on-state current capability of 2 A, providing reliable triggering for triac or SCR based circuits.

Housed in a DO-35 through-hole package with dimensions of 4.5 mm length and 2.75 mm height, it supports robust mounting on printed circuit boards. The device is rated for a wide operating temperature range from -40°C to 125°C, ensuring dependable performance under varied industrial and commercial conditions.

This DIAC features a low breakover current of 10 μA and a breakover voltage symmetry of 3 V, which enables balanced conduction in AC applications such as motor speed controls, light dimmers, fluorescent lamp ballasts, and triggering oscillator circuits in CFL, TL, or LED lighting fixtures.

The repetitive peak off-state current is minimized to 0.01 mA, reducing leakage and enhancing circuit efficiency. The through-hole mount type facilitates easy replacement and manual soldering in prototyping or production environments.

The DIAC functions as a trigger diode with a fixed voltage reference for firing triacs. It is compliant with ECOPACK®2 standards for environmental safety. The device is free from automotive certification, suitable primarily for industrial and electronic applications.

The compact DO-35 package simplifies integration in space-constrained designs. Effective for use in lighting control and motor control circuits requiring precise triggering.

STMicroelectronics DB4 DIAC is essential for design engineers requiring a compact and reliable trigger device for AC switching applications. It supports automated manufacturing processes through its standardized packaging and provides a durable solution for controlling triac gates in power electronics.

Explore the full range of diacs and semiconductor components to enhance your electronic product designs with STMicroelectronics devices at EnvMart.