Isocom AC Input Optocoupler Surface Mount 4-Pin DIP 1.3V 50mA TLP521SM

Isocom TLP521SM AC Input Optocoupler is a single channel, high-isolation component used to transmit signals between two isolated circuits. This device incorporates a Gallium Arsenide infra-red emitting diode and a silicon photo transistor, enabling reliable operation where electrical isolation is essential.

The optocoupler comes in a surface mount configuration using a 4-pin DIP package, making it suitable for integration onto PCBs in industrial automation, instrumentation, and microcontroller interface applications. Its AC input current capability (up to 50mA) and a maximum forward voltage of 1.3V provide flexibility across a range of signal levels.

The TLP521SM supports a maximum current transfer ratio of 600%, ensuring efficient signal conversion. Its isolation voltage reaches 5300Vrms, making this device ideal for sensitive control environments where electrical separation protects both personnel and equipment from potential surges or faults.

With a typical rise time of 4μs and fall time of 3μs, the optocoupler delivers quick response suited for fast signal transfer. The operating temperature range from -30°C to 100°C enables reliable performance in varied environmental and industrial conditions.

High isolation for industrial signal interface and microcontroller protection. Surface mount configuration simplifies PCB assembly and integration. Works with AC input signals, useful for automated control systems. UL listed and RoHS compliant for global markets.

Tube packaging supports bulk procurement and production lines.

Typical applications include industrial automation, programmable logic control (PLC) systems, instrumentation panels, and microprocessor input/output signal isolation. The device is widely used in manufacturing, HVAC control panels, laboratory systems, and commercial electronic equipment.

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