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. 796-5165
Mfr. Part No.TLP220G
BrandToshiba
kr 27,02
Each
Units
Through Hole MOSFET 1.75V 1 4 DIP AC 0.1ms 100 mA 5000 Vrms - - - 0.2ms
RS Stock No. 165-2473
Mfr. Part No.SFH610A-3
BrandVishay
kr 4,641
Each (In a Tube of 100)
Units
Through Hole Transistor 1.65V 1 4 PDIP DC 3µs 60 mA 5.3 kVrms - 200% 100 % 14µs
RS Stock No. 165-2895
Mfr. Part No.CNY17-3X007T
BrandVishay
kr 2,257
Each (On a Reel of 1000)
Units
Surface Mount Phototransistor 1.65V 1 6 PDIP DC 3µs 60 mA 5.3 kVrms - 200% 100 % 14µs
RS Stock No. 178-0898
Mfr. Part No.CNY17F-2
BrandVishay
kr 3,979
Each (In a Tube of 65)
Units
Through Hole Phototransistor 1.65V 1 6 PDIP DC 3µs 60 mA 5.3 kVrms - 125% 63 % 14µs
RS Stock No. 710-4853
Mfr. Part No.CNY17-3X007T
BrandVishay
kr 5,055
Each (In a Pack of 10)
Units
Surface Mount Phototransistor 1.65V 1 6 PDIP DC 3µs 60 mA 5300 V ac - 200% 100 % 14µs
RS Stock No. 773-3669
Mfr. Part No.VO2223A-X001
BrandVishay
kr 10,72
Each (In a Bag of 2)
Units
Through Hole Phototriac 1.4V 1 7 DIP DC - 50 mA 5300 Vrms - - - -
RS Stock No. 761-3375
Mfr. Part No.HCPL2631
kr 16,80
Each (In a Pack of 2)
Units
Through Hole Logic Gate 1.75V 2 8 MDIP DC 50ns 30 mA 2500 V ac Yes - - 12ns
RS Stock No. 919-1026
Mfr. Part No.VO2223A-X001
BrandVishay
kr 9,685
Each (In a Tube of 50)
Units
Through Hole Phototriac 1.4V 1 7 DIP DC - 50 mA 5300 Vrms - - - -
RS Stock No. 453-0892
Mfr. Part No.ISP825X
BrandIsocom
kr 9,472
Each (In a Pack of 5)
Units
Through Hole Darlington 1.4V 2 8 PDIP DC 60µs 50 mA 5.3 kVrms - 7500% 600 % 53µs
RS Stock No. 699-8212
Mfr. Part No.SFH610A-3
BrandVishay
kr 6,67
Each (In a Pack of 10)
Units
Through Hole Transistor 1.65V 1 4 PDIP DC 3µs 60 mA 5300 V ac - 200% 100 % 14µs
RS Stock No. 769-0259
Mfr. Part No.TLP185(E(O
BrandToshiba
kr 3,131
Each (In a Pack of 10)
Units
Surface Mount Transistor 1.4V 1 4 SOIC DC 5µs 50 mA 3.75 kVrms - 400% 50 % 9µs
RS Stock No. 796-5184
Mfr. Part No.TLP2958
BrandToshiba
kr 14,956
Each (In a Pack of 5)
Units
Through Hole Infrared LED 1.7V 1 8 DIP AC 15ns 10 mA 5000 Vrms Yes - - 10ns
RS Stock No. 168-7794
Mfr. Part No.TLP220G
BrandToshiba
kr 12,323
Each (In a Tube of 100)
Units
Through Hole MOSFET 1.75V 1 4 DIP AC 0.1ms 100 mA 5 kVrms - - - 0.2ms
RS Stock No. 168-7800
Mfr. Part No.TLP2958
BrandToshiba
kr 7,063
Each (In a Tube of 50)
Units
Through Hole Infrared LED 1.7V 1 8 DIP AC 15ns 10 mA 5 kVrms Yes - - 10ns
RS Stock No. 168-7588
Mfr. Part No.TLP185(E(O
BrandToshiba
kr 1,705
Each (In a Tube of 125)
Units
Surface Mount Transistor 1.4V 1 4 SOIC DC 5µs 50 mA 3.75 kVrms - 400% 50 % 9µs
RS Stock No. 885-1411
Mfr. Part No.TLP663JF(S,C,F)
BrandToshiba
kr 3,509
Each (In a Pack of 15)
Units
Through Hole Phototriac 1.3V 1 5 DIP - - 25 mA 5000 Vrms - - - -
RS Stock No. 124-1346
Mfr. Part No.HCPL2631
kr 14,187
Each (In a Tube of 50)
Units
Through Hole Logic Gate 1.75V 2 8 MDIP DC 50ns 30 mA 2500 V ac Yes - - 12ns
RS Stock No. 708-5323
Mfr. Part No.CNY17F-2
BrandVishay
kr 4,367
Each (In a Pack of 10)
Units
Through Hole Phototransistor 1.65V 1 6 PDIP DC 3µs 60 mA 5300 V ac - 125% 63 % 14µs
RS Stock No. 739-4983
Mfr. Part No.FODM8061
kr 13,46
Each
Units
Surface Mount Logic Gate 1.8V - 5 SO DC 20ns 50 mA 3750 V ac Yes - - 10ns
RS Stock No. 903-4232
Mfr. Part No.FODM8061R2
kr 11,944
Each (In a Pack of 10)
Units
Surface Mount Schottky-Clamped Transistor 1.8V 1 5 Mini-Flat DC 20ns 50 mA 3750 V ac Yes - - 10ns