Optocoupler ICs

An optocoupler, also known as an opto-isolator or photocoupler, is a semiconductor device which is used to couple isolated circuits. Within an optocoupler you will find a light emitter and a light sensor. Optocouplers usually come in a semiconductor package, such as SOIC or PDIP.

How does an optocoupler work?
Optocouplers work by transferring energy from one circuit to another circuit via an optical transmission path, while providing electrical isolation
The light emitter device can come in the form of an LED (light emitting diode) that produces IR or visible light, or a laser diode. The light emitter receives the input and converts it into a light signal. The light detector senses the light emitter and converts it back into an electrical signal.

Optocouplers are often used in high-voltage applications to block the high voltages and variations in voltage. This ensures that, if there is a spike in one part of a circuit, it will not affect other parts. Therefore they are ideal for applications which may experience variations in voltage.

Types of Optocoupler:
• Resistive
• Photodiode
• Phototransistor
• Bidirectional

Output Types
• CMOS
• Darlington
• IGBT Gate Drive
• Logic Gate
• MOSFET
• Photodarlington
• Phototransistor
• Single Transistor
• TRIAC

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Omschrijving Prijs Mounting Type Output Device Maximum Forward Voltage Number of Channels Number of Pins Package Type Input Current Type Typical Rise Time Maximum Input Current Isolation Voltage Logic Output Maximum Current Transfer Ratio Minimum Current Transfer Ratio Typical Fall Time
RS-stocknr. 880-1968
FabrikantnummerOPI1264A
FabrikantOptek
2,40 €
Each (In a Pack of 2)
Aantal stuks
Through Hole NPN Phototransistor, Photosensor 1.6V - 4 - DC - 40 mA 10 Vrms - Minimum of 25% - -
RS-stocknr. 170-0946
FabrikantnummerOPI1264A
FabrikantOptek
2,264 €
Each (In a Bag of 25)
Aantal stuks
Through Hole NPN Phototransistor, Photosensor 1.6V - 4 - DC - 40 mA 15 kV dc Vrms - Minimum of 25% - -
RS-stocknr. 880-1952
FabrikantnummerOPI1264C
FabrikantOptek
2,40 €
Each (In a Pack of 2)
Aantal stuks
Through Hole NPN Phototransistor, Photosensor 1.6V - 4 - DC - 40 mA 10 Vrms - Minimum of 100% - -
RS-stocknr. 170-0941
FabrikantnummerOPI1264C
FabrikantOptek
2,264 €
Each (In a Bag of 25)
Aantal stuks
Through Hole NPN Phototransistor, Photosensor 1.6V - 4 - DC - 40 mA 15 kV dc Vrms - Minimum of 100% - -
RS-stocknr. 170-0945
FabrikantnummerOPI1280-026
FabrikantOptek
4,786 €
Each (In a Bag of 100)
Aantal stuks
Through Hole NPN Phototransistor 2.3V - 4 - DC - - 15 kV dc Vrms - - - -
RS-stocknr. 170-0764
FabrikantnummerOPI 1264B
FabrikantOptek
2,206 €
Each (In a Bag of 25)
Aantal stuks
Through Hole Transistor 1.6V 1 4 - DC - 40 mA 10 kV dc - - 50 % -
RS-stocknr. 880-1965
FabrikantnummerOPI1280-026
FabrikantOptek
5,45 €
Each
Aantal stuks
Through Hole NPN Phototransistor 2.3V - 4 - DC - - 15 kV - - - -
RS-stocknr. 171-3892
FabrikantnummerOPI 1264B
FabrikantOptek
2,29 €
Each
Aantal stuks
Through Hole Transistor 1.6V 1 4 - DC - 40 mA 10 kV dc - - 50 % -
RS-stocknr. 880-1955
FabrikantnummerOPI120
FabrikantOptek
9,06 €
Each
Aantal stuks
Through Hole Photodarlington, Photosensor, Phototransistor 1.5V - 5 - DC 2µs 150 mA 15 Vrms - 50% - 2µs
RS-stocknr. 170-0942
FabrikantnummerOPI120
FabrikantOptek
8,455 €
Each (In a Bag of 25)
Aantal stuks
Through Hole Photodarlington, Photosensor, Phototransistor 1.5V - 5 - DC 2µs 150 mA 15 kV dc Vrms - 50% - 2µs