6N135-500E

Optoisolators - Transistor, Photovoltaic Output

The 6N135-500E optocoupler is an optically isolated device with a built-in photovoltaic transistor output. It isolates low-voltage digital logic signals from high-voltage applications. The 6N135-500E optocoupler features a peak transfer current of 500mA. It is capable of operating over a wide temperature range, from -40°C to +85°C.

Working Principle

The 6N135-500E optocoupler contains an infrared LED with a built-in photovoltaic transistor. When a current passes through the LED, it emits infrared light, which is directed at the photovoltaic transistor. When the transistor is exposed to the light, it converts the light energy into electrical energy, which is stored in the form of a voltage across the base-emitter junction of the transistor. The transistor then acts as a switch, allowing current to flow between its collector and emitter. This flow of current is isolated from the photonic energy generated by the LED, forming a galvanic isolation barrier that safeguards the digital logic signals against high voltages.

Application Field

The 6N135-500E optocoupler is suitable for a wide range of applications where electrical isolation is required. These include ac/dc interfaces, switching power supplies, motor control, lighting control, level shifters, and logic signal translation. The optical transmission of data signals makes the optocoupler particularly useful in applications where high voltages or hazardous conditions are present, such as pump motors, elevators, emergency lighting systems, and industrial automation.

The 6N135-500E optocoupler is an efficient, reliable device for isolating low-voltage circuits from high-voltage signals. It is robust, easy to use, and capable of transferring data signals over long distances. Its compact size makes it ideal for applications where space is at a premium, such as in embedded systems. It is ideal for applications where electrical isolation is needed to protect the circuitry from external electrical interference and from high voltages.