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. 145-1599
Mfr. Part No.CNY74-4H
BrandVishay
€1.078
Each (In a Tube of 25)
units
Through Hole Transistor 1.6V 4 16 PDIP DC 3µs 60 mA 5.3 kVrms - 600% 50 % 4.7µs
RS Stock No. 699-8170
Mfr. Part No.CNY74-4H
BrandVishay
€1.51
Each (In a Pack of 5)
units
Through Hole Transistor 1.6V 4 16 PDIP DC 3µs 60 mA 5300 V ac - 600% 50 % 4.7µs
RS Stock No. 708-5437
Mfr. Part No.K847PH
BrandVishay
€1.126
Each (In a Pack of 10)
units
Through Hole Transistor 1.6V 4 16 DIP DC 3µs 60 mA 5000 V ac - 600% 50 % 4.7µs
RS Stock No. 169-6122
Mfr. Part No.K847PH
BrandVishay
€1.024
Each (In a Tube of 25)
units
Through Hole Transistor 1.6V 4 16 DIP DC 3µs 60 mA 5 kVrms - 600% 50 % 4.7µs
RS Stock No. 699-8417
Mfr. Part No.VO610A-3X019T
BrandVishay
€0.539
Each (In a Pack of 20)
units
Surface Mount Phototransistor 1.6V 1 4 SMD - 3µs 60 mA 5000 V ac - 200% 100 % 4.7µs
RS Stock No. 165-2521
Mfr. Part No.VO610A-3X019T
BrandVishay
€0.237
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.6V 1 4 SMD - 3µs 60 mA 5 kVrms - 200% 100 % 4.7µs
RS Stock No. 165-2471
Mfr. Part No.SFH610A-2
BrandVishay
€0.476
Each (In a Tube of 100)
units
Through Hole Transistor 1.65V 1 4 PDIP DC 3µs 60 mA 5.3 kVrms - 125% 63 % 14µs
RS Stock No. 145-2598
Mfr. Part No.TCMT4100
BrandVishay
€0.701
Each (On a Reel of 2000)
units
Surface Mount Transistor 1.6V 4 16 Mini-Flat DC 3µs 60 mA 3.75 kVrms - 600% 50 % 4.7µs
RS Stock No. 108-476
Mfr. Part No.SFH 6286-2T
BrandVishay
€1.186
Each (In a Pack of 5)
units
Surface Mount Transistor 1.5V 1 4 SMD AC - 50 mA 5.3 kVrms - 200% 63 % -
RS Stock No. 708-5499
Mfr. Part No.SFH617A-3
BrandVishay
€0.604
Each (In a Pack of 10)
units
Through Hole Phototransistor 1.65V 1 4 PDIP DC 3µs 60 mA 5300 V ac - 200% 100 % 14µs
RS Stock No. 699-8203
Mfr. Part No.SFH610A-2
BrandVishay
€0.669
Each (In a Pack of 10)
units
Through Hole Transistor 1.65V 1 4 PDIP DC 3µs 60 mA 5300 V ac - 125% 63 % 14µs
RS Stock No. 919-0152
Mfr. Part No.SFH617A-3
BrandVishay
€0.431
Each (In a Tube of 100)
units
Through Hole Phototransistor 1.65V 1 4 PDIP DC 3µs 60 mA 5300 V ac - 200% 100 % 14µs
RS Stock No. 919-4362
Mfr. Part No.SFH 6286-2T
BrandVishay
€0.41
Each (On a Reel of 1000)
units
Surface Mount Transistor 1.5V 1 4 SMD AC - 50 mA 5300 V ac - 200% 63 % -
RS Stock No. 699-8357
Mfr. Part No.TCMT4100
BrandVishay
€1.80
Each (In a Pack of 2)
units
Surface Mount Transistor 1.6V 4 16 Mini-Flat DC 3µs 60 mA 3750 V ac - 600% 50 % 4.7µs
RS Stock No. 169-6099
Mfr. Part No.VO208AT
BrandVishay
€0.183
Each (On a Reel of 2000)
units
Surface Mount Phototransistor 1.5V 1 8 SOIC DC 3µs 60 mA 4 kVrms - 320% 160 % 2µs
RS Stock No. 919-0124
Mfr. Part No.ILQ621
BrandVishay
€2.253
Each (In a Tube of 25)
units
Through Hole Transistor 1.3V 4 16 PDIP DC 2.8µs 60 mA 5300 V ac - 600% 50 % 11µs
RS Stock No. 773-0196
Mfr. Part No.VOL617A-2X001T
BrandVishay
€0.105
Each (In a Bag of 10)
units
Surface Mount Phototransistor 1.5V 1 4 LSOP DC 3.5µs 60 mA 5000 Vrms - 125% - 5µs
RS Stock No. 903-2517
Mfr. Part No.K3010P
BrandVishay
€0.276
Each (In a Tube of 50)
units
Through Hole Triac 1.6V 1 6 DIP-6 - - 80 mA 5.3 kVrms - - - -
RS Stock No. 708-5402
Mfr. Part No.ILQ621
BrandVishay
€2.996
Each (In a Pack of 5)
units
Through Hole Transistor 1.3V 4 16 PDIP DC 2.8µs 60 mA 5300 V ac - 600% 50 % 11µs
RS Stock No. 165-2712
Mfr. Part No.VOL617A-2X001T
BrandVishay
€0.101
Each (On a Reel of 3000)
units
Surface Mount Phototransistor 1.5V 1 4 LSOP DC 3.5µs 60 mA 5 kVrms - 125% - 5µs