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. 691-2265
Mfr. Part No.MOC3021
BrandLite-On
SGD0.764
Each (In a Pack of 5)
units
Through Hole Triac - 1 6 PDIP - - 50 mA 5 kVrms - - - -
RS Stock No. 284-1190
Mfr. Part No.SFH6156-2T
BrandVishay
SGD1.28
Each
units
Surface Mount Transistor 1.25V 1 4 SMD DC 3µs 60 mA 5300 Vrms - 125% 63 % 14µs
RS Stock No. 922-5835
Mfr. Part No.HCNR201-000E
BrandBroadcom
SGD5.214
Each (In a Tube of 42)
units
Through Hole Photodiode 1.95V 1 8 PDIP-W DC - 25 mA 5000 V ac - - - -
RS Stock No. 699-8271
Mfr. Part No.SFH690ABT
BrandVishay
SGD0.743
Each (In a Pack of 10)
units
Surface Mount Transistor 1.4V 1 4 SOP DC 3µs 50 mA 3750 V ac - 300% 50 % 4µs
RS Stock No. 146-1959
Mfr. Part No.H11F1M
SGD2.156
Each (In a Bag of 1000)
units
Through Hole Transistor 1.75V 1 6 PDIP DC - 60 mA 7.5 kVrms Yes - - -
RS Stock No. 145-1627
Mfr. Part No.VO2630
BrandVishay
SGD3.783
Each (In a Tube of 50)
units
Surface Mount Phototransistor 1.7V 2 8 DIP DC 23ns 15 mA 5.3 kVrms Yes - - 7ns
RS Stock No. 456-383
Mfr. Part No.H11F1M
SGD4.146
Each (In a Pack of 5)
units
Through Hole Transistor 1.75V 1 6 PDIP DC - 60 mA 7.5 kVrms Yes - - -
RS Stock No. 885-1196
Mfr. Part No.TLP2161(F)
BrandToshiba
SGD3.662
Each (In a Pack of 5)
units
Surface Mount Photo IC 1.65V 2 8 SOIC - 3ns 2 mA 2.5 kVrms Yes - - 3ns
RS Stock No. 708-5124
Mfr. Part No.VO2630
BrandVishay
SGD4.672
Each (In a Pack of 5)
units
Surface Mount Phototransistor 1.7V 2 8 DIP DC 23ns 15 mA 5300 V ac Yes - - 7ns
RS Stock No. 159-6466
Mfr. Part No.ILD206T
BrandVishay
SGD0.598
Each (On a Reel of 2000)
units
Surface Mount Transistor 1.55V 2 8 SOIC DC - 30 mA 4 kVrms - 125% 63 % -
RS Stock No. 547-4074
Mfr. Part No.HCNR201-000E
BrandBroadcom
SGD7.43
Each
units
Through Hole Photodiode 1.95V 1 8 PDIP-W DC - 25 mA 5 kVrms - - - -
RS Stock No. 168-9683
Mfr. Part No.MOC3021
BrandLite-On
SGD0.454
Each (In a Tube of 65)
units
Through Hole Triac - 1 6 PDIP - - 50 mA 5 kVrms - - - -
RS Stock No. 631-1182
Mfr. Part No.ILD206T
BrandVishay
SGD1.392
Each (In a Pack of 10)
units
Surface Mount Transistor 1.55V 2 8 SOIC DC - 30 mA 4 kVrms - 125% 63 % -
RS Stock No. 693-6775
Mfr. Part No.ACPL-217-500E
BrandBroadcom
SGD0.84
Each (In a Pack of 5)
units
Surface Mount Transistor 1.4V 1 4 SOIC DC 2µs 50 mA 3 kVrms - 600% 50 % 3µs
RS Stock No. 165-2642
Mfr. Part No.SFH690ABT
BrandVishay
SGD0.291
Each (On a Reel of 2000)
units
Surface Mount Transistor 1.4V 1 4 SOP DC 3µs 50 mA 3.75 kVrms - 300% 50 % 4µs
RS Stock No. 885-1358
Mfr. Part No.TLP762JF(D4,F)
BrandToshiba
SGD1.181
Each (In a Pack of 10)
units
Through Hole Phototriac - 1 5 DIP - - 10 mA 4000 Vrms - - - -
RS Stock No. 169-6162
Mfr. Part No.VO617A-2X017T
BrandVishay
SGD0.173
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.65V 1 4 SMD DC 4.6µs 60 mA 5.3 kVrms - 125% - 15µs
RS Stock No. 760-3261
Mfr. Part No.TLP762JF(D4,F)
BrandToshiba
SGD2.038
Each (In a Pack of 10)
units
Through Hole Triac - 1 5 DIP - - 10 mA 4000 V ac - - - -
RS Stock No. 450-751
Mfr. Part No.HCNW3120-000E
BrandBroadcom
SGD4.98
Each
units
Through Hole Transistor 1.95V - 8 DIP DC 0.1µs 16 mA 5 kVrms Yes - - 0.1µs
RS Stock No. 885-1092
Mfr. Part No.TLP184(SE(T
BrandToshiba
SGD0.318
Each (In a Pack of 25)
units
Surface Mount Phototransistor 1.4V 1 4 SO6 AC, DC 5µs 20 mA 3750 Vrms - 400% - 9µs
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