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. 919-0092
Mfr. Part No.IL300
BrandVishay
R 51.505
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. 708-5364
Mfr. Part No.IL300
BrandVishay
R 67.524
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. 903-2508
Mfr. Part No.H11AA1
BrandVishay
R 12.88
Each (In a Tube of 50)
units
Through Hole Transistor 1.5V 1 6 DIP AC - 60 mA 5.3 kVrms - - - -
RS stock no. 708-5354
Mfr. Part No.IL300-DEFG
BrandVishay
R 69.67
Each
units
Through Hole Photodiode 1.5V 1 8 PDIP DC 1.75µs 60 mA 5300 V ac - - - 1.75µs
RS stock no. 919-0086
Mfr. Part No.IL300-DEFG
BrandVishay
R 53.309
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. 165-6150
Mfr. Part No.VOM617A-2T
BrandVishay
R 1.349
Each (On a Reel of 3000)
units
Surface Mount Phototransistor 1.6V 1 4 SOP DC 3µs 60 mA 3.75 kVrms - 125% - 3µs
RS stock no. 818-4500
Mfr. Part No.VOM617A-2T
BrandVishay
R 1.371
Each (On a Tape of 50)
units
Surface Mount Phototransistor 1.6V 1 4 SOP DC 3µs 60 mA 3750 Vrms - 125% - 3µs
RS stock no. 773-0212
Mfr. Part No.VOM160NT
BrandVishay
R 10.435
Each (On a Tape of 10)
units
Surface Mount Phototriac 1.5V 1 4 SOP DC - 60 mA 3750 Vrms - - - -
RS stock no. 146-1427
Mfr. Part No.VOM160NT
BrandVishay
R 4.489
Each (On a Reel of 2000)
units
Surface Mount Phototriac 1.5V 1 4 SOP DC - 60 mA 3.75 kVrms - - - -
RS stock no. 710-4881
Mfr. Part No.ILD217T
BrandVishay
R 20.378
Each (In a Pack of 5)
units
Surface Mount Transistor 1.55V 2 8 SOIC DC - 30 mA 4000 V ac - 120% 100 % -
RS stock no. 708-5285
Mfr. Part No.4N33
BrandVishay
R 7.264
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. 919-0862
Mfr. Part No.ILD217T
BrandVishay
R 6.839
Each (On a Reel of 2000)
units
Surface Mount Transistor 1.55V 2 8 SOIC DC - 30 mA 4000 V ac - 120% 100 % -
RS stock no. 919-0060
Mfr. Part No.4N33
BrandVishay
R 6.731
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. 110-185
Mfr. Part No.SFH615A-2
BrandVishay
R 19.08
Each
units
Through Hole Transistor 1.65V 1 4 PDIP DC 3µs 60 mA 5.3 kVrms - 125% 63 % 14µs
RS stock no. 710-4900
Mfr. Part No.SFH615A-4X017T
BrandVishay
R 3.215
Each (In a Pack of 10)
units
Through Hole Phototransistor 1.65V 1 4 SMD DC 4µs 60 mA 5300 V ac - 320% 160 % 15µs
RS stock no. 145-1578
Mfr. Part No.SFH615A-2
BrandVishay
R 5.97
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. 699-8414
Mfr. Part No.VO610A-3X007T
BrandVishay
R 7.328
Each (In a Pack of 20)
units
Surface Mount Phototransistor 1.6V 1 4 SMD DC 3µs 60 mA 5000 V ac - 200% 100 % 4.7µs
RS stock no. 159-6455
Mfr. Part No.SFH6156-2T
BrandVishay
R 4.212
Each (On a Reel of 1000)
units
Surface Mount Transistor 1.25V 1 4 SMD DC 3µs 60 mA 5.3 kVrms - 125% 63 % 14µs
RS stock no. 284-1190
Mfr. Part No.SFH6156-2T
BrandVishay
R 12.44
Each
units
Surface Mount Transistor 1.25V 1 4 SMD DC 3µs 60 mA 5300 Vrms - 125% 63 % 14µs
RS stock no. 919-0880
Mfr. Part No.SFH615A-4X017T
BrandVishay
R 3.106
Each (On a Reel of 1000)
units
Through Hole Phototransistor 1.65V 1 4 SMD DC 4 μ 60 mA 5300 V ac - 320% 160% 15µs