H11C4M

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Optoisolators - Triac, SCR Output

Optoisolators are a type of electronic component designed to provide electrical isolation between the input and output. They are usually used to protect the control system from electrical noise, prevent shock, and provide a measure of safety for the user. In general, an optoisolator consists of a light source, a detector, and a semiconductor or other type of electronic switching device. The most common optoisolators are triac and SCR output optoisolators.

H11C4M application field and working principle

The H11C4M is a type of triac optoisolator designed for applications up to 800 volts. It is a single-in-line package (SIP) optoisolator that provides noise suppression, electrical isolation, and elimination of shock hazard. The H11C4M works by using a Gallium Arsenide (GaAs) optical emitter in the input circuit and a silicon phototransistor in the output circuit. The GaAs emitter emits an infrared light beam when power is applied to the input. This beam is then received by the phototransistor which turns on the output circuit to complete the switching process. The H11C4M can be used in a wide range of applications including AC line switching, DC line switching, motor control, and amplifier output protection.

The H11C4M uses a unique dual retriggerable capability. This allows for simple bi-directional switching, eliminating the need for mechanical components in the circuits. Retriggering also permits the H11C4M to be used in circuits that require cycling and synchronizing. Additionally, its high-response speed and its low gate current requirements make the H11C4M ideal for high-frequency switching applications.

The H11C4M is a single device optoisolator, meaning it consists of only one component. It is also hermetically sealed and designed with a low-profile pinout to fit in tight spaces. It has a unique flat-topped package with rounded edges, which helps to minimize sharp corners and eases placement onto circuit boards. The H11C4M is UL, CSA, VDE, and EN recognized for safety.

In summary, the H11C4M is a type of triac optoisolator designed for applications up to 800 volts. It uses a light source and detector to provide electrical isolation and noise suppression. Its unique dual retriggerable capabilities, high-speed response, and low gate current requirements make it suitable for many applications. It is UL, CSA, VDE, and EN recognized for safety and is available as a hermetically sealed, single-in-line package.

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