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. 145-1822
Mfr. Part No.VO615A-4
BrandVishay
PHP16.065
Each (In a Tube of 100)
units
Through Hole Phototransistor 1.6V 1 4 DIP DC 3µs 60 mA 5 kVrms - 320% - 4.7µs
RS Stock No. 773-3690
Mfr. Part No.VO615A-4
BrandVishay
PHP32.13
Each (In a Bag of 5)
units
Through Hole Phototransistor 1.6V 1 4 DIP DC 3µs 60 mA 5000 Vrms - 320% - 4.7µs
RS Stock No. 708-5395
Mfr. Part No.ILQ55
BrandVishay
PHP206.704
Each (In a Pack of 5)
units
Through Hole Darlington 1.5V 4 16 PDIP DC 10µs 60 mA 5300 V ac - 400% 100 % 35µs
RS Stock No. 919-0115
Mfr. Part No.ILQ55
BrandVishay
PHP152.25
Each (In a Tube of 25)
units
Through Hole Darlington 1.5V 4 16 PDIP DC 10 μ 60 mA 5300 V ac - 400% 100% 35µs
RS Stock No. 177-7507
Mfr. Part No.LH1510AABTR
BrandVishay
PHP156.663
Each (In a Tray of 1000)
units
Surface Mount MOSFET 1.45V - 6 SMD DC 0.5ms 2 mA 5.3 kVrms - - - 0.7ms
RS Stock No. 903-4743
Mfr. Part No.LH1510AABTR
BrandVishay
PHP206.705
Each (In a Pack of 2)
units
Surface Mount MOSFET 1.45V - 6 SMD DC 0.5ms 2 mA 5300 Vrms - - - 0.7ms
RS Stock No. 815-2594
Mfr. Part No.ILD620GB
BrandVishay
PHP122.094
Each (In a Pack of 10)
units
Through Hole Phototransistor 1.3V 2 8 DIP AC 2.8 (Saturated) μs, 20 (Non Saturated) μs ±60 mA 5300 Vrms - 600% - 11 (Saturated) μs, 2 (Non Saturated) μs
RS Stock No. 145-1707
Mfr. Part No.ILD620GB
BrandVishay
PHP122.094
Each (In a Tube of 50)
units
Through Hole Phototransistor 1.3V 2 8 DIP AC 2.8 (Saturated) μs, 20 (Non Saturated) μs ±60 mA 5.3 kVrms - 600% - 11 (Saturated) μs, 2 (Non Saturated) μs
RS Stock No. 699-8281
Mfr. Part No.TCLT1003
BrandVishay
PHP26.41
Each (In a Pack of 10)
units
Surface Mount Transistor 1.6V 1 4 SOP DC 3µs 60 mA 5000 V ac - 200% 100 % 4.7µs
RS Stock No. 165-2317
Mfr. Part No.TCLT1003
BrandVishay
PHP11.24
Each (On a Reel of 3000)
units
Surface Mount Transistor 1.6V 1 4 SOP DC 3µs 60 mA 5 kVrms - 200% 100 % 4.7µs
RS Stock No. 902-6638
Mfr. Part No.4N35-X009T
BrandVishay
PHP28.56
Each (In a Pack of 25)
units
Surface Mount Phototransistor 1.7V 2 6 SMD DC 10µs 60 mA 5000 Vrms - 50% - 10µs
RS Stock No. 165-4936
Mfr. Part No.4N35-X009T
BrandVishay
PHP12.92
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.7V 2 6 SMD DC 10µs 60 mA 5 kVrms - 50% - 10µs
RS Stock No. 903-2508
Mfr. Part No.H11AA1
BrandVishay
PHP48.51
Each (In a Tube of 50)
units
Through Hole Transistor 1.5V 1 6 DIP AC - 60 mA 5.3 kVrms - - - -
RS Stock No. 708-5275
Mfr. Part No.4N25
BrandVishay
PHP20.726
Each (In a Pack of 50)
units
Through Hole Transistor 1.5V 1 6 PDIP DC 2µs 60 mA 5000 V ac - 50% 20 % 2µs
RS Stock No. 145-1578
Mfr. Part No.SFH615A-2
BrandVishay
PHP19.69
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. 110-185
Mfr. Part No.SFH615A-2
BrandVishay
PHP36.41
Each
units
Through Hole Transistor 1.65V 1 4 PDIP DC 3µs 60 mA 5.3 kVrms - 125% 63 % 14µs
RS Stock No. 919-0054
Mfr. Part No.4N25
BrandVishay
PHP20.726
Each (In a Tube of 50)
units
Through Hole Transistor 1.5V 1 6 PDIP DC 2µs 60 mA 5000 V ac - 50% 20 % 2µs
RS Stock No. 773-0244
Mfr. Part No.VOM617A-7X001T
BrandVishay
PHP26.36
Each (In a Bag of 25)
units
Surface Mount Phototransistor 1.6V 1 4 SOP DC 7µs 60 mA 3750 Vrms - 160% - 12µs
RS Stock No. 165-2967
Mfr. Part No.VOM617A-7X001T
BrandVishay
PHP10.50
Each (On a Reel of 3000)
units
Surface Mount Phototransistor 1.6V 1 4 SOP DC 7µs 60 mA 3.75 kVrms - 160% - 12µs
RS Stock No. 169-6122
Mfr. Part No.K847PH
BrandVishay
PHP60.38
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