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. 453-7512
Mfr. Part No.PS2501-4
$6.20
Each
units
Through Hole Transistor 1.4V 4 16 PDIP DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
RS Stock No. 632-4857
Mfr. Part No.PS2502-4-A
$6.06
Each
units
Through Hole Darlington 1.4V 4 16 PDIP DC 100µs 80 mA 5000 Vrms - 2000% 200 % 100µs
RS Stock No. 453-7528
Mfr. Part No.PS2501L-1
$1.53
Each
units
Surface Mount Transistor 1.4V 1 4 SMT DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
RS Stock No. 168-6126
Mfr. Part No.PS2502-4-A
$3.233
Each (In a Tube of 20)
units
Through Hole Darlington 1.4V 4 16 PDIP DC 100µs 80 mA 5 kVrms - 2000% 200 % 100µs
New
RS Stock No. 196-3301
Mfr. Part No.RV1S9213ACCSP-10YV#SC0
$3.136
Each (In a Pack of 5)
units
Surface Mount - 1.75V 1 5 - DC - 20 mA 5 kVrms - - - -
RS Stock No. 772-6099
Mfr. Part No.PS9506L2-AX
$2.745
Each (In a Pack of 4)
units
Surface Mount Phototransistor 1.8V 1 8 DIP DC 50ns 12 mA 5000 Vrms Yes - - 50ns
RS Stock No. 186-4484
Mfr. Part No.PS9303L2-V-AX
$4.435
Each (In a Pack of 2)
units
Surface Mount Photodiode 1.9V 1 6 DIP - 120ns 10 mA 5 kVrms - - - 90ns
New
RS Stock No. 196-3302
Mfr. Part No.RV1S2281ACCSP-10YC#SC0
$0.776
Each (On a Tape of 20)
units
Surface Mount - 1.4V 1 4 - DC 4µs 30 mA 5 kVrms - 400% 50% 5µs
New
RS Stock No. 196-3310
Mfr. Part No.RV1S2211ACCSP-10YV#SC0
$0.731
Each (In a Pack of 25)
units
Surface Mount - 1.4V 1 4 - DC 4µs 30 mA 5 kVrms - 400% 100% 5µs
RS Stock No. 186-4353
Mfr. Part No.PS2381-1Y-V-AX
$1.079
Each (In a Pack of 10)
units
Surface Mount Phototransistor 1.4V 1 4 LSOP DC 4µs 10 mA 5 kVrms - 400% 50% 5µs
RS Stock No. 772-6074
Mfr. Part No.PS9308L-AX
$3.232
Each (In a Pack of 5)
units
Surface Mount Phototransistor 1.8V 1 6 SDIP DC 50ns 16 mA 5000 Vrms - - - 50ns
New
RS Stock No. 196-3303
Mfr. Part No.RV1S2281ACCSP-10YC#SC0
$0.682
Each (In a Pack of 25)
units
Surface Mount - 1.4V 1 4 - DC 4µs 30 mA 5 kVrms - 400% 50% 5µs
RS Stock No. 186-4275
Mfr. Part No.PS9031-Y-AX
$3.026
Each (In a Pack of 5)
units
Surface Mount MOSFET 1.75V 1 5 SOP - 40ns 10 mA 5 kVrms - - - 40ns
RS Stock No. 181-6786
Mfr. Part No.PS9587-AX
$3.386
Each (In a Pack of 5)
units
Surface Mount Photodiode 1.8V 1 8 DIP - 20ns 12 mA 5 kVrms - - - 10ns
RS Stock No. 186-4356
Mfr. Part No.PS9821-1-AX
$3.644
Each (In a Pack of 5)
units
Surface Mount Photodetector 1.8V 1 8 SSOP - 20ns 10 mA 2.5 kVrms - - - 5ns
RS Stock No. 181-6759
Mfr. Part No.PS9531L1-AX
$1.794
Each (On a Reel of 50)
units
Surface Mount Photodiode 1.75V 1 8 DIP - 40ns 25 mA 5 kVrms - - - 40ns
RS Stock No. 186-4455
Mfr. Part No.PS9924-Y-AX
$9.63
Each
units
Surface Mount Photodiode 1.8V 1 8 DIP - 20ns 10 mA 7.5 kVrms - - - 5ns
New
RS Stock No. 196-3311
Mfr. Part No.RV1S2285ACCSP-10YC#SC0
$1.949
Each (On a Tape of 20)
units
Surface Mount - 1.4V 1 4 - DC 4µs 30 mA 5 kVrms - 400% 50% 5µs
RS Stock No. 186-4365
Mfr. Part No.PS8352AL2-AX
$9.28
Each
units
Surface Mount - 5.5V 1 8 DIP - 3.1µs 16 mA 5 kVrms - - - 3.1µs
RS Stock No. 186-4376
Mfr. Part No.PS2702-1-A
$1.184
Each (In a Pack of 10)
units
Surface Mount Darlington 1.4V 1 4 SOP DC 70µs 5 mA 3.75 kVrms - - 200% 60µs