MCT2E Transistor Phototransistor Optocoupler onsemi MCT2E

Product Overview

The MCT2E is a widely used 6-pin optocoupler that provides electrical isolation between two circuits. It consists of an infrared emitting gallium arsenide (GaAs) diode coupled to a silicon NPN phototransistor. By converting electrical signals into light and then back into electrical signals, it protects sensitive control circuitry from high-voltage transients and ground loops. It is a standard choice for industrial communication, signal isolation, and logic-to-logic interfacing.

Core Specifications

• Manufacturer: onsemi

• Package Type: 6-Pin DIP (Through-Hole)

• Component Type: Phototransistor Optocoupler

• Input (LED): Forward Current ($I_F$) up to 60mA

• Output (Phototransistor): Collector-Emitter Voltage ($V_{CEO}$) up to 30V

• Isolation Voltage ($V_{ISO}$): 5300 VAC ($V_{RMS}$)

• Current Transfer Ratio (CTR): 20% (Minimum)

• Rise/Fall Time: ~10 µs (Typical)

• Marking Code: MCT2E

• Part Number: MCT2E