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
RS Stock No. 864-9114
Mfr. Part No.FOD3150SD
kr 13,638
Each (In a Pack of 5)
Units
Surface Mount MOSFET 1.8V 1 8 SMT - 60ns 25 mA 5000 Vrms Yes - - 60ns
RS Stock No. 166-2258
Mfr. Part No.MOC3021SR2M
kr 1,644
Each (On a Reel of 1000)
Units
Surface Mount Phototriac 1.5V 1 6 DIP AC - 60 mA 5.3 kVrms Yes - - -
RS Stock No. 281-5422
Mfr. Part No.HCPL-7860-000E
BrandBroadcom
kr 53,24
Each
Units
Through Hole Transistor 0.2V - 8 DIP DC - 15 mA 3.75 kVrms Yes - - -
RS Stock No. 178-7558
Mfr. Part No.MOCD217R2M
kr 2,593
Each (On a Reel of 2500)
Units
Surface Mount Transistor 1.3V 2 8 SOIC DC 3.2µs 60 mA 2.5 kVrms - 130% 100 % 4.7µs
RS Stock No. 145-1653
Mfr. Part No.IL4216
BrandVishay
kr 14,844
Each (In a Tube of 50)
Units
Through Hole Phototriac 1.5V 1 6 DIP DC - 60 mA 5.3 kVrms - - - -
RS Stock No. 178-1571
Mfr. Part No.ACPL-247-500E
BrandBroadcom
kr 6,124
Each (On a Reel of 2000)
Units
- - - - - - - - - - - - - -
RS Stock No. 773-3653
Mfr. Part No.IL4216
BrandVishay
kr 14,66
Each
Units
Through Hole Phototriac 1.5V 1 6 DIP DC - 60 mA 5300 Vrms - - - -
RS Stock No. 178-4748
Mfr. Part No.MOC3023M
kr 4,201
Each (In a Tube of 50)
Units
Through Hole Phototriac 1.15V 1 6 PDIP - - 60 mA 5.3 kVrms - - - -
RS Stock No. 671-1416
Mfr. Part No.MCT62
kr 6,88
Each (In a Pack of 5)
Units
Through Hole Phototransistor 1.5V 2 8 PDIP, PDIP-W DC - 60 mA 5 kVrms - - 100 % -
RS Stock No. 547-4169
Mfr. Part No.HCPL-4100-000E
BrandBroadcom
kr 61,91
Each
Units
Through Hole Transistor 20V - 8 DIP DC 16ns 250 μA 3.75 kVrms Yes - - 23ns
RS Stock No. 166-2235
Mfr. Part No.HCPL2611
kr 6,40
Each (In a Bag of 1000)
Units
Through Hole Photodetector 1.8V 1 8 PDIP DC 50ns 50 mA 2.5 kVrms Yes - - 12ns
RS Stock No. 165-2463
Mfr. Part No.CNY17-2
BrandVishay
kr 3,695
Each (In a Tube of 50)
Units
Through Hole Transistor 1.65V 1 6 PDIP DC 3µs 60 mA 5.3 kVrms - 125% 63 % 14µs
RS Stock No. 168-9657
Mfr. Part No.LTV-814
BrandLite-On
kr 2,042
Each (In a Tube of 100)
Units
Through Hole Transistor 1.4V 1 4 PDIP AC 4µs 50 mA 5 kVrms - 300% 20 % 3µs
RS Stock No. 761-4530
Mfr. Part No.MOCD217R2M
kr 7,398
Each (In a Pack of 5)
Units
Surface Mount Transistor 1.3V 2 8 SOIC DC 3.2µs 60 mA 2500 V ac - 130% 100 % 4.7µs
RS Stock No. 922-5854
Mfr. Part No.HCPL-4100-000E
BrandBroadcom
kr 45,788
Each (In a Tube of 50)
Units
Through Hole Transistor 20V - 8 DIP DC 16ns 250 μA 3750 V ac Yes - - 23ns
RS Stock No. 169-8771
Mfr. Part No.FOD3150S
kr 5,664
Each (In a Bag of 1000)
Units
Surface Mount MOSFET 1.8V 1 8 PDIP SMD DC 60ns 25 mA 5 kVrms Yes - - 60ns
RS Stock No. 917-5538
Mfr. Part No.MOC3042M
kr 6,56
Each (In a Pack of 10)
Units
Through Hole Triac Driver 1.5V 1 6 DIP DC - 60 mA 4170 V ac Yes - - -
RS Stock No. 166-2114
Mfr. Part No.MOC3041SM
kr 3,224
Each (In a Bag of 1000)
Units
Surface Mount Triac 1.5V 1 6 DIP AC - 60 mA 7.5 kVrms Yes - - -
RS Stock No. 178-4821
Mfr. Part No.MOCD217M
kr 3,908
Each (In a Tube of 100)
Units
Surface Mount Phototransistor 1.3V 2 8 SOIC DC 3.2µs 200 mA 2.5 kVrms Yes 100% - 4.7µs
RS Stock No. 450-761
Mfr. Part No.HCNW2611-300E
BrandBroadcom
kr 30,01
Each (In a Pack of 2)
Units
Surface Mount Transistor 1.75V 1 8 DIP DC 24ns 20 mA 3.75 kVrms Yes - - 10ns