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. 815-1030
Mfr. Part No.6N136
BrandVishay
TWD45.40
Each (In a Pack of 10)
units
Through Hole Transistor 1.9V 1 8 DIP DC - 25 mA 5300 Vrms - 35% - -
RS Stock No. 919-4312
Mfr. Part No.6N136
BrandVishay
TWD41.00
Each (In a Tube of 50)
units
Through Hole Transistor 1.9V 1 8 DIP DC - 25 mA 5300 Vrms - 35% - -
RS Stock No. 699-8225
Mfr. Part No.SFH6156-3T
BrandVishay
TWD23.00
Each (In a Pack of 10)
units
Surface Mount Transistor 1.65V 1 4 SMD DC 3µs 60 mA 5300 V ac - 200% 100 % 14µs
RS Stock No. 165-2586
Mfr. Part No.SFH6156-3T
BrandVishay
TWD9.80
Each (On a Reel of 1000)
units
Surface Mount Transistor 1.65V 1 4 SMD DC 3µs 60 mA 5.3 kVrms - 200% 100 % 14µs
RS Stock No. 919-0127
Mfr. Part No.ILQ621GB
BrandVishay
TWD93.90
Each (In a Tube of 25)
units
Through Hole Transistor 1.3V 4 16 PDIP DC 2.8µs 60 mA 5300 V ac - 600% 100 % 11µs
RS Stock No. 708-5364
Mfr. Part No.IL300
BrandVishay
TWD159.40
Each (In a Pack of 5)
units
Through Hole Photodiode 1.5V 1 8 PDIP DC 1.75µs 60 mA 5300 V ac - - - 1.75µs
RS Stock No. 919-0092
Mfr. Part No.IL300
BrandVishay
TWD114.40
Each (In a Tube of 50)
units
Through Hole Photodiode 1.5V 1 8 PDIP DC 1.75µs 60 mA 5300 V ac - - - 1.75µs
RS Stock No. 708-5405
Mfr. Part No.ILQ621GB
BrandVishay
TWD100.80
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. 699-8177
Mfr. Part No.CNY74-2H
BrandVishay
TWD23.80
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. 708-5281
Mfr. Part No.4N32
BrandVishay
TWD18.40
Each (In a Pack of 10)
units
Through Hole Darlington 1.5V 1 6 PDIP DC - 60 mA 5300 V ac - - 500 % -
RS Stock No. 145-1761
Mfr. Part No.CNY74-2H
BrandVishay
TWD22.70
Each (In a Tube of 50)
units
Through Hole Transistor 1.6V 2 8 PDIP DC 3µs 60 mA 5.3 kVrms - 600% 50 % 4.7µs
RS Stock No. 919-0067
Mfr. Part No.4N32
BrandVishay
TWD18.80
Each (In a Tube of 50)
units
Through Hole Darlington 1.5V 1 6 PDIP DC - 60 mA 5300 V ac - - 500 % -
RS Stock No. 708-5382
Mfr. Part No.ILQ1
BrandVishay
TWD94.80
Each (In a Pack of 5)
units
Through Hole Transistor 1.65V 4 16 PDIP DC 1.9µs 60 mA 5300 V ac - 300% 20 % 1.4µs
RS Stock No. 919-0105
Mfr. Part No.ILQ1
BrandVishay
TWD80.80
Each (In a Tube of 25)
units
Through Hole Transistor 1.65V 4 16 PDIP DC 1.9µs 60 mA 5300 V ac - 300% 20 % 1.4µs
RS Stock No. 165-2330
Mfr. Part No.TCMT1107
BrandVishay
TWD7.10
Each (On a Reel of 3000)
units
Surface Mount Phototransistor 1.6V 1 4 Mini-Flat DC 3µs 60 mA 3.75 kVrms - 160% 80 % 4.7µs
RS Stock No. 815-2588
Mfr. Part No.ILD2
BrandVishay
TWD47.30
Each (In a Pack of 10)
units
Through Hole Phototransistor 1.65V 2 8 DIP DC 2.6 (Non Saturated) μs, 7 (Saturated) μs 60 mA 5300 Vrms - 500% - 2.2 (Non Saturated) μs, 20 (Saturated) μs
RS Stock No. 145-2624
Mfr. Part No.ILQ615-4
BrandVishay
TWD71.90
Each (In a Tube of 25)
units
Through Hole Transistor 1.3V 4 16 PDIP DC 4.6µs 60 mA 5.3 kVrms - 320% 160 % 15µs
RS Stock No. 699-8341
Mfr. Part No.TCMT1107
BrandVishay
TWD16.50
Each (In a Pack of 10)
units
Surface Mount Phototransistor 1.6V 1 4 Mini-Flat DC 3µs 60 mA 3750 V ac - 160% 80 % 4.7µs
RS Stock No. 708-5398
Mfr. Part No.ILQ615-4
BrandVishay
TWD102.80
Each (In a Pack of 5)
units
Through Hole Transistor 1.3V 4 16 PDIP DC 4.6µs 60 mA 5300 V ac - 320% 160 % 15µs
RS Stock No. 710-4884
Mfr. Part No.ILD207T
BrandVishay
TWD45.80
Each (In a Pack of 5)
units
Surface Mount Transistor 1.55V 2 8 SOIC DC - 30 mA 4000 V ac - 200% 100 % -