Q401E4-LF Triac; 400V; 1A; TO92; Igt: 25mA; Ifsm: 16.7A; glass passivated

The Q401E4-LF is a compact and efficient TRIAC designed for low-power AC control applications. Encased in a TO92 package, this device offers a voltage rating of 400V and a current capacity of 1A, making it suitable for controlling small resistive and inductive loads. Its sensitive gate trigger current (Igt) of 25mA allows for easy control with low-power signals, making it compatible with microcontrollers and other control circuits. The Q401E4-LF's glass-passivated junction ensures high reliability and stability, even in harsh operating environments. Its compact size and through-hole design make it easy to integrate into densely populated circuit boards.

This TRIAC features a high surge current capability (Ifsm) of 16.7A, which allows it to withstand transient overloads without damage, providing added protection to your circuits. Its low on-state voltage drop minimizes power dissipation, contributing to energy-efficient designs. The Q401E4-LF's bidirectional switching capability simplifies circuit design and reduces the number of components required for AC power control. Its versatility extends to applications such as small appliance control, light dimmers, and solid-state relays. The device's robust construction ensures long-term performance and durability.

Engineered for optimal performance, the Q401E4-LF features a high blocking voltage, which prevents unwanted conduction in the off-state. This characteristic is particularly important in safety-critical applications where reliable isolation is required. The TRIAC's fast turn-on and turn-off times minimize switching losses, making it suitable for low to medium frequency applications. Its TO92 package provides adequate thermal performance for its power rating. The Q401E4-LF is also lead-free (LF) and compliant with RoHS standards, ensuring that it meets environmental regulations and is free from hazardous substances. This compliance makes it a responsible choice for environmentally conscious designs.

The Q401E4-LF is an ideal choice for designers seeking a compact and efficient TRIAC for low-power AC control. Its combination of high voltage rating, low gate trigger current, and high surge current capability makes it a versatile component for a wide range of electronic circuits. Whether you're designing a small appliance controller, a light dimmer, or a solid-state relay, the Q401E4-LF offers the performance and reliability you need. Its compact TO92 package simplifies assembly, while its robust design ensures long-term stability. Upgrade your designs with the Q401E4-LF and experience the difference in performance and reliability. Order yours today and take your projects to the next level.