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. 166-2236
Mfr. Part No.HCPL2531S
HK$8.43
Each (In a Bag of 1000)
units
Surface Mount Phototransistor 1.8V 2 8 MDIP DC 1.5µs 25 mA 2.5 kVrms Yes 50% - 1.5µs
RS Stock No. 830-3458
Mfr. Part No.PVI5050NSPBF
BrandInfineon
HK$32.71
Each (In a Pack of 2)
units
Surface Mount MOSFET 8V 1 4 DIP DC 300µs 50 mA dc 4000 Vrms - - - 220µs
RS Stock No. 145-2644
Mfr. Part No.SFH615A-4X018T
BrandVishay
HK$2.463
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.65V 1 4 PDIP DC 4µs 60 mA 5.3 kVrms - 320% 160 % 15µs
RS Stock No. 165-2649
Mfr. Part No.VOD213T
BrandVishay
HK$3.01
Each (On a Reel of 2000)
units
Surface Mount Phototransistor 1.55V 2 8 SOIC DC 5µs 30 mA 4 kVrms - - 100 % 4µs
RS Stock No. 168-9677
Mfr. Part No.LTV-846
BrandLite-On
HK$5.064
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. 124-1738
Mfr. Part No.HCPL2630
HK$14.47
Each (In a Tube of 50)
units
Through Hole Logic Gate 1.8V 1 8 DIP DC 50ns 50 mA 2500 V ac Yes - - 12ns
RS Stock No. 919-0786
Mfr. Part No.VO2630-X007T
BrandVishay
HK$9.659
Each (On a Reel of 1000)
units
Surface Mount Transistor 1.7V 2 8 PDIP DC 0.023µs - 5300 V ac Yes - - 0.007µs
RS Stock No. 699-8473
Mfr. Part No.VOD213T
BrandVishay
HK$3.454
Each (In a Pack of 10)
units
Surface Mount Phototransistor 1.55V 2 8 SOIC DC 5µs 30 mA 4000 V ac - - 100 % 4µs
RS Stock No. 699-8177
Mfr. Part No.CNY74-2H
BrandVishay
HK$4.595
Each (In a Pack of 10)
units
Through Hole Transistor 1.6V 2 8 PDIP DC 3µs 60 mA 5300 V ac - 600% 50 % 4.7µs
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. 691-2205
Mfr. Part No.LTV-827
BrandLite-On
HK$3.334
Each (In a Pack of 5)
units
Through Hole Transistor 1.4V 2 8 PDIP DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs
RS Stock No. 691-2221
Mfr. Part No.LTV-846
BrandLite-On
HK$6.585
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. 165-2647
Mfr. Part No.VOD205T
BrandVishay
HK$2.834
Each (On a Reel of 2000)
units
Surface Mount Transistor 1.55V 2 8 SOIC DC 5µs 30 mA 4 kVrms - 80% 40 % 4µs
RS Stock No. 671-1419
Mfr. Part No.HCPL2630
HK$16.95
Each
units
Through Hole Logic Gate 1.8V 1 8 DIP DC 50ns 50 mA 2.5 kVrms Yes - - 12ns
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. 146-1427
Mfr. Part No.VOM160NT
BrandVishay
HK$2.36
Each (On a Reel of 2000)
units
Surface Mount Phototriac 1.5V 1 4 SOP DC - 60 mA 3.75 kVrms - - - -
RS Stock No. 168-7924
Mfr. Part No.PC357N3J000F
BrandSharp
HK$1.127
Each (On a Reel of 3000)
units
- - 1.4V - - - - - 50 mA 3.75 kVrms - - - -
RS Stock No. 708-5405
Mfr. Part No.ILQ621GB
BrandVishay
HK$25.108
Each (In a Pack of 5)
units
Through Hole Transistor 1.3V 4 16 PDIP DC 2.8µs 60 mA 5300 V ac - 600% 100 % 11µs
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. 171-8639
Mfr. Part No.AQV252
BrandPanasonic
HK$42.87
Each
units
Through Hole MOSFET - - 6 DIP DC - 50 mA 1.5 kVrms - - - -
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