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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Description Price 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
New
RS Stock No. 210-8042
Mfr. Part No.140816142200
€0.185
Each (On a Reel of 1500)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8043
Mfr. Part No.140816142200
€0.224
Each (In a Pack of 50)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8022
Mfr. Part No.140816140210
€0.201
Each (In a Tube of 100)
units
Through Hole - 1.4V 4 4 DIP DC - - - - - - -
New
RS Stock No. 210-8049
Mfr. Part No.140816143000
€0.224
Each (In a Pack of 50)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8031
Mfr. Part No.140816141110
€0.224
Each (In a Pack of 50)
units
Through Hole - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8023
Mfr. Part No.140816140210
€0.224
Each (In a Pack of 50)
units
Through Hole - 1.4V 4 4 DIP DC - - - - - - -
New
RS Stock No. 210-8067
Mfr. Part No.140816144400
€0.224
Each (In a Pack of 50)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8032
Mfr. Part No.140816141210
€0.201
Each (In a Tube of 100)
units
Through Hole - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8034
Mfr. Part No.140816141310
€0.213
Each (In a Tube of 100)
units
Through Hole - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8058
Mfr. Part No.140816144000
€0.185
Each (On a Reel of 1500)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8050
Mfr. Part No.140816143100
€0.185
Each (On a Reel of 1500)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8052
Mfr. Part No.140816143200
€0.185
Each (On a Reel of 1500)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8044
Mfr. Part No.140816142300
€0.185
Each (On a Reel of 1500)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8040
Mfr. Part No.140816142100
€0.213
Each (On a Reel of 1500)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8046
Mfr. Part No.140816142400
€0.185
Each (On a Reel of 1500)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8024
Mfr. Part No.140816140310
€0.201
Each (In a Tube of 100)
units
Through Hole - 1.4V 4 4 DIP DC - - - - - - -
New
RS Stock No. 210-8063
Mfr. Part No.140816144200
€0.224
Each (In a Pack of 50)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8059
Mfr. Part No.140816144000
€0.224
Each (In a Pack of 50)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8064
Mfr. Part No.140816144300
€0.213
Each (On a Reel of 1500)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -
New
RS Stock No. 210-8053
Mfr. Part No.140816143200
€0.224
Each (In a Pack of 50)
units
Surface Mount - 1.4V 4 4 - DC - - - - - - -