TCMT1100 VISHAY Transistor Output

The TCMT1100 from Vishay is a single‑channel phototransistor optocoupler in a low‑profile 4‑pin Mini‑Flat SOP package, delivering 3750 Vrms isolation for secure galvanic separation. For selection, it supports a 60 mA forward current, 70 V collector‑emitter voltage, and a current‑transfer ratio that is sorted into groups from 50 % to 600 %, enabling precise gain matching. The typical 1.35 V forward voltage, low 0.3 pF coupling capacitance, and an operating range of −40 °C to +100 °C suit automated SMD assembly in cramped designs. In application, it isolates microcontroller I/O and bus lines in programmable logic controllers, industrial automation, and process control. It protects signal paths in modems, answering machines, telecom interfaces, and consumer appliances. It also shunts noise and breaks ground loops in medical equipment, robotics, and motor‑drive feedback stages where a compact, high‑isolation interface is essential. In stock at HL Electronics – request a quote for fast delivery.