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 isolationThe 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 BidirectionalOutput 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. 799-5330
Mfr. Part No.TLP523(F)
BrandToshiba
HK$3.575
Each (In a Pack of 10)
units
Through Hole Darlington 1.3V 1 4 DIP DC - - 2500 Vrms - 2000% - -
RS Stock No. 100-0151
Mfr. Part No.TLP250(F)
BrandToshiba
HK$17.71
Each (In a Pack of 5)
units
Through Hole Transistor 1.3V 1 8 PDIP DC 2µs 300 mA 2500 V ac Yes - - -
RS Stock No. 896-2565
Mfr. Part No.TLP523(F)
BrandToshiba
HK$5.102
Each (In a Pack of 10)
units
Through Hole Darlington 1.3V 1 4 DIP DC - - 2500 Vrms - 2000% - -
RS Stock No. 885-1115
Mfr. Part No.TLP292(BL-TPL,E(T
BrandToshiba
HK$1.805
Each (In a Pack of 25)
units
Surface Mount Phototransistor 1.4V 1 4 SO4 AC, DC 2µs ±50 mA 3750 Vrms - 600% - 3µs
RS Stock No. 796-5282
Mfr. Part No.TLP292(BL
BrandToshiba
HK$1.998
Each (In a Pack of 25)
units
Surface Mount Infrared LED 1.4V 1 4 SOIC AC 2µs 50 mA 3750 Vrms - 600% - 3µs
RS Stock No. 168-7824
Mfr. Part No.TLP292(BL
BrandToshiba
HK$1.843
Each (On a Tape of 175)
units
Surface Mount Infrared LED 1.4V 1 4 SOIC AC 2µs 50 mA 3.75 kVrms - 600% - 3µs
RS Stock No. 885-1023
Mfr. Part No.TLP293(BL,E(T
BrandToshiba
HK$1.488
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. 168-7827
Mfr. Part No.TLP293(BL
BrandToshiba
HK$1.59
Each (On a Tape of 175)
units
Surface Mount Transistor 1.4V 1 4 SOIC DC 2µs 50 mA 3.75 kVrms - 600% - 3µs
RS Stock No. 796-5298
Mfr. Part No.TLP293(BL
BrandToshiba
HK$2.695
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. 625-7909
Mfr. Part No.6N137(F)
BrandToshiba
HK$12.24
Each
units
Through Hole Transistor 1.75V 1 8 DIP DC 30ns 20 mA 2.5 kVrms Yes 1000% 1000 % 30ns
RS Stock No. 885-1225
Mfr. Part No.TLP2168(F)
BrandToshiba
HK$20.58
Each (In a Pack of 5)
units
Surface Mount Photo IC 1.8V 1 8 SOIC - 30ns 8 mA 2500 Vrms Yes - - 30ns
RS Stock No. 185-962
Mfr. Part No.TLP190B(U,C,F)
BrandToshiba
HK$15.23
Each (In a Pack of 2)
units
Surface Mount Diode 1.7V 1 4 SOP DC - 50 mA 2.5 kVrms Yes - 8888 -
RS Stock No. 186-022
Mfr. Part No.TLP350(F)
BrandToshiba
HK$18.36
Each (In a Pack of 2)
units
Through Hole IGBT Gate Drive, MOSFET - 1 8 PDIP DC - - 3.75 kVrms Yes - - -
RS Stock No. 760-3221
Mfr. Part No.TLP350(TP5,F)
BrandToshiba
HK$23.76
Each
units
Surface Mount IGBT Gate Drive, MOSFET 1.8V 2 8 PDIP DC 15ns 20 mA 3750 V ac - - - 8ns
RS Stock No. 885-1301
Mfr. Part No.TLP5214(E(O
BrandToshiba
HK$25.275
Each (In a Pack of 2)
units
Surface Mount Photo IC 1.8V 1 16 SOIC - 32ns 3.5 mA 5 kVrms - - - 18ns
RS Stock No. 168-7832
Mfr. Part No.TLP785F(GR-LF7,F(C
BrandToshiba
HK$0.962
Each (In a Tube of 100)
units
Surface Mount Transistor 1.3V 1 4 DIP DC 2µs 10 mA 5 kVrms - 300% - 3µs
RS Stock No. 168-7424
Mfr. Part No.TLP350(TP5,F)
BrandToshiba
HK$18.672
Each (In a Tube of 50)
units
Surface Mount IGBT Gate Drive, MOSFET 1.8V 2 8 PDIP DC 15ns 20 mA 3.75 kVrms - - - 8ns
RS Stock No. 885-0967
Mfr. Part No.TLP291(V4GBTP,SE(T
BrandToshiba
HK$1.739
Each (In a Pack of 50)
units
Surface Mount Phototransistor 1.4V 1 4 SO4 DC 4µs 50 mA 3750 Vrms - 400% - 7µs
RS Stock No. 796-5317
Mfr. Part No.TLP785F(GR-LF7,F(C
BrandToshiba
HK$1.087
Each (In a Pack of 25)
units
Surface Mount Transistor 1.3V 1 4 DIP DC 2µs 10 mA 5000 Vrms - 300% - 3µs
RS Stock No. 168-7828
Mfr. Part No.TLP293(GB
BrandToshiba
HK$1.494
Each (On a Tape of 175)
units
Surface Mount Transistor 1.4V 1 4 SOIC DC 2µs 50 mA 3.75 kVrms - 600% - 3µs