MCT2 and MCT2E are also available in white package by . MCT2E. MCT2E-M. MCT V. (IC = 16 mA, IF = 32 mA, TA = °C). Details, datasheet, quote on part number: MCT2E Collector-emitter saturation voltage Input-to-output internal resistance TEST CONDITIONS = 10 µA, IC =1. MCT2E ON Semiconductor / Fairchild Transistor Output Optocouplers DIP-6 PHOTO TRANS datasheet, inventory & pricing.

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MCT2E IC Pinout, Specifications, Equivalent, Working & Datasheet

This will short the collector and emitter and hence the Logic Output voltage will become zero. The datashheet waveform shows the time taken for the output to transit from one state to another. Out of which the Phototransistor mode is mostly datasheey, so let us look at that mode first. The ground line of the IR LED pin 2 and the ground line of the transistor pin 4 will not be connected together.

MCT2E Datasheet(PDF) – TI store

When the IR led is datashete the light from it falls on the transistor and it conducts. This way the logic input will be reflected at the logic output and still provides and isolation between the two.


Another important parameter to consider while using an Optocoupler, is the rise time tr and fall daasheet tf. This IC is used to provide electrical isolation between two circuits, one part of the circuit is connected to the IR LED and the other to Photo-transistor.

The digital signal given to the IR LED will be reflected on the transistor but there will be no hard electrical connection between the two. It is mct2r not used for transistor mode, but will be used in diode mode.

The output will not get high as soon as the input logic is made low and vice versa. Submitted by admin on 7 March This comes in very handy when you are trying to isolate datashheet noisy signal from your digital electronics, so if you are looking for an IC to provide optical isolation in your circuit design then this IC might be the right choice for you.

iv Base pin of the Transistor. This is the logic output pin 6 Base B Base pin of the Transistor. This is where the isolation occurs. More details can be found at the MCT2E datasheet which is available for download at the end of this page.


Connected to isolated ground.

IC MCT2E Optocouplers

The complete working can also be understood form the GIF file above. Then Pull high the collector pin of the transistor datasheft a resistor here I have used 1K and connect the collector pin to the output of your desired logic circuit.

In the Photo-transistor mode we will not be using the base pin pin 6 of the datasjeet we just have to connect the anode pin of the IR LED pin 1 to the logic input which has to be isolated and the cathode pin 2 of the IR led to the ground. TL — Programmable Reference Voltage.

The Emitter pin 4 is grounded. There pull-up resistor 1K acts as a load resistor.

But when the Logic input is made high, this high voltage should be a minimum of 1.