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. 168-9699
Mfr. Part No.6N139S-L
BrandLite-On
SGD1.054
Each (In a Tube of 50)
units
Surface Mount Transistor 1.7V 1 8 SMD DC - 20 mA 5 kVrms Yes 5000% 500 % -
RS Stock No. 453-7499
Mfr. Part No.PS2501-1
SGD1.48
Each
units
Through Hole Transistor 1.4V 1 4 PDIP DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
RS Stock No. 168-9677
Mfr. Part No.LTV-846
BrandLite-On
SGD1.00
Each (In a Tube of 25)
units
Through Hole Transistor 1.4V 4 16 PDIP DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs
RS Stock No. 178-3163
Mfr. Part No.ACPL-4800-000E
BrandBroadcom
SGD3.16
Each (In a Tube of 50)
units
Through Hole - 1.85V 1 8 DIP DC 16ns 10 mA 3.75 kVrms Yes - - 20ns
RS Stock No. 168-7436
Mfr. Part No.TLP762JF(D4,F)
BrandToshiba
SGD0.998
Each (In a Tube of 50)
units
Through Hole Triac - 1 5 DIP - - 10 mA 4 kVrms - - - -
RS Stock No. 691-2356
Mfr. Part No.6N139S-L
BrandLite-On
SGD1.892
Each (In a Pack of 5)
units
Surface Mount Transistor 1.7V 1 8 SMD DC - 20 mA 5 kVrms Yes 5000% 500 % -
RS Stock No. 796-5308
Mfr. Part No.TLP293(E
BrandToshiba
SGD0.50
Each (In a Pack of 25)
units
Surface Mount Transistor 1.4V 1 4 SOIC DC 2µs 50 mA 3750 Vrms - 600% - 3µs
RS Stock No. 691-2221
Mfr. Part No.LTV-846
BrandLite-On
SGD1.02
Each (In a Pack of 2)
units
Through Hole Transistor 1.4V 4 16 PDIP DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs
RS Stock No. 756-3707
Mfr. Part No.TLP759(D4-IGM,J,F)
BrandToshiba
SGD4.31
Each
units
Through Hole Transistor 1.85V 1 8 DIP DC - 25 mA 5000 V ac Yes 40% 20 % -
RS Stock No. 919-0109
Mfr. Part No.ILQ2
BrandVishay
SGD3.46
Each (In a Tube of 25)
units
Through Hole Transistor 1.65V 4 16 PDIP DC 2.6µs 60 mA 5300 V ac - 500% 100 % 2.2µs
RS Stock No. 840-0029
Mfr. Part No.HCPL-7710-000E
BrandBroadcom
SGD7.565
Each (In a Pack of 2)
units
Through Hole Photodiode - 1 8 DIP DC 9ns 230 mA 3750 Vrms Yes - - 8ns
RS Stock No. 796-5216
Mfr. Part No.TLP184
BrandToshiba
SGD0.424
Each (In a Pack of 20)
units
Surface Mount Phototransistor 1.4V 1 5 SOIC AC 5µs 10 mA 3750 Vrms - 400% - 9µs
RS Stock No. 885-1027
Mfr. Part No.TLP293(E(T
BrandToshiba
SGD0.529
Each (In a Pack of 25)
units
Surface Mount Phototransistor 1.4V 1 4 SO4 DC 2µs 50 mA 3750 Vrms - 600% - 3µs
RS Stock No. 699-8206
Mfr. Part No.SFH6106-4T
BrandVishay
SGD1.068
Each (In a Pack of 10)
units
Surface Mount Phototransistor 1.65V 1 4 SMD DC 4µs 60 mA 5300 V ac - 320% 160 % 15µs
RS Stock No. 760-3249
Mfr. Part No.TLP558(F)
BrandToshiba
SGD6.01
Each
units
Through Hole Logic Gate 1.7V 1 8 DIP DC 75ns 10 mA 2500 V ac Yes - - 75ns
RS Stock No. 597-302
Mfr. Part No.4N35
BrandIsocom
SGD0.92
Each
units
Through Hole Transistor 1.5V 1 6 PDIP DC 2µs 60 mA 5.3 kVrms - - 40 % 2µs
RS Stock No. 773-0152
Mfr. Part No.VO617A-2X017T
BrandVishay
SGD0.903
Each (In a Bag of 10)
units
Surface Mount Phototransistor 1.65V 1 4 SMD DC 4.6µs 60 mA 5300 Vrms - 125% - 15µs
RS Stock No. 693-5927
Mfr. Part No.ACPL-4800-000E
BrandBroadcom
SGD3.92
Each
units
Through Hole - 1.85V 1 8 DIP DC 16ns 10 mA 3.75 kVrms Yes - - 20ns
RS Stock No. 178-3200
Mfr. Part No.HCPL-7710-000E
BrandBroadcom
SGD4.878
Each (In a Tube of 50)
units
Through Hole Photodiode - 1 8 DIP DC 9ns 230 mA 3.75 kVrms Yes - - 8ns
RS Stock No. 922-5615
Mfr. Part No.HCNW3120-000E
BrandBroadcom
SGD4.151
Each (In a Tube of 42)
units
Through Hole Transistor 1.95V - 8 DIP DC 0.1µs 16 mA 5000 V ac Yes - - 0.1µs
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