H11B255-V

Optoisolators provide a wide range of electrical isolation between two circuits. This isolation minimizes the risk of short-circuiting or other electric hazards. The H11B255-V is a type of optoisolator specifically designed for transistor, photovoltaic output applications.

The device consists of a phototransistor optically coupled to an infrared LED. When the LED is forward-biased with a voltage, it emits infrared light which is detected by the phototransistor, allowing current to flow from the collector to the emitter. If no current is applied to the LED, however, no signal can be transmitted through the optoisolator, providing electrical isolation between two circuits.

In application, the H11B255-V uses a 6 VDC (direct current) power supply and a 5.6 VDC phototransistor. With a switch on the base, it can also be used with a reversely biased LED at 5.7 volts. The output of the device is a low power transistor with a maximum collector current of 150 μA and a maximum transit frequency of 200 kHz. The operating temperature range is from -55°C to +125°C.

The H11B255-V uses a bilateral amplifier to provide electrical isolation between two circuits. This reduces the risk of electrical hazards by preventing short-circuits. It also eliminates the need for a capacitor, as the device\'s output is electrically isolated from the input. The phototransistor\'s current gain of 200mA/V is also beneficial, as it provides a higher signal-to-noise ratio than other optoisolators, allowing for more accurate switching.

In addition to electrical isolation, the H11B255-V is also known for its low-temperature performance. Its unique construction eliminates the need for thermal management in many applications, and it can operate in temperatures as low as -55°C. This makes it well-suited for applications in extreme climates, such as those found in aviation and automotive industries.

The H11B255-V is ideal for applications that require electrical isolation and a low-temperature operating range. Its unique design minimizes the risk of electrical hazards, while its high current gain and low operating temperature make it well-suited for a wide range of industrial and consumer applications. Its low-temperature performance and electrical isolation make it an ideal choice for applications that require isolation and reliable performance in extreme conditions.