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. 178-3234
Mfr. Part No.HCPL-817-000E
BrandBroadcom
PHP8.835
Each (In a Tube of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 696-1282
Mfr. Part No.HCPL-817-000E
BrandBroadcom
PHP15.856
Each (In a Pack of 10)
units
Through Hole Transistor 1.4V 1 4 PDIP DC 4µs 50 mA 5000 V ac - 600% 50 % 3µs
RS Stock No. 145-1822
Mfr. Part No.VO615A-4
BrandVishay
PHP14.521
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
PHP29.038
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. 547-3655
Mfr. Part No.HCPL-063N-000E
BrandBroadcom
PHP383.92
Each
units
Through Hole Transistor 1.75V 2 8 SOIC DC 24ns 20 mA 3.75 kVrms Yes - - 10ns
RS Stock No. 922-5769
Mfr. Part No.HCPL-063N-000E
BrandBroadcom
PHP255.68
Each (In a Tube of 100)
units
Through Hole Transistor 1.75V 2 8 SOIC DC 24ns 20 mA 3750 V ac Yes - - 10ns
RS Stock No. 885-1279
Mfr. Part No.TLP250H(D4,F)
BrandToshiba
PHP90.74
Each (In a Pack of 5)
units
Through Hole Photo IC 1.8V 1 8 DIP - 50ns 3 mA 2500 Vrms Yes - - 50ns
RS Stock No. 708-5395
Mfr. Part No.ILQ55
BrandVishay
PHP183.544
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
PHP152.872
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. 111-172
Mfr. Part No.H11G2
BrandIsocom
PHP76.44
Each
units
Through Hole Darlington 1.5V 1 6 DIP DC 100µs 50 mA 5.3 kVrms - - 1000 % 20µs
RS Stock No. 505-7039
Mfr. Part No.TLP624-2
BrandToshiba
PHP66.806
Each (In a Pack of 5)
units
Through Hole Transistor 1.3V 2 8 PDIP DC 8µs 50 mA 5 kVrms - 1200% 100 % 8µs
RS Stock No. 818-8307
Mfr. Part No.HCNW3120-300E
BrandBroadcom
PHP178.83
Each (In a Pack of 2)
units
Surface Mount IGBT Gate Drive, MOSFET 1.95V 1 8 DIP DC 500ns 16 mA 5000 Vrms Yes - - 500ns
RS Stock No. 671-1434
Mfr. Part No.MOC3043M
PHP46.60
Each (In a Pack of 5)
units
Through Hole Phototriac - 1 6 PDIP - - 60 mA 7.5 kVrms - - - -
RS Stock No. 184-1023
Mfr. Part No.MOC3063M
PHP14.486
Each (In a Tube of 1000)
units
Through Hole Triac Driver 1.5V 1 6 DIP - - 60 mA 4170 (Minimum) Vrms ac Yes - - -
RS Stock No. 922-6484
Mfr. Part No.HCNW3120-300E
BrandBroadcom
PHP139.699
Each (In a Tube of 42)
units
Surface Mount IGBT Gate Drive, MOSFET 1.95V 1 8 DIP DC 500ns 16 mA 5000 Vrms Yes - - 500ns
RS Stock No. 597-289
Mfr. Part No.4N25
BrandIsocom
PHP30.71
Each
units
Through Hole Transistor 1.5V 1 6 PDIP DC 2µs 60 mA 5.3 kVrms - - 20 % 2µs
RS Stock No. 808-8803
Mfr. Part No.FOD817C
PHP14.455
Each (In a Pack of 25)
units
Through Hole Phototransistor 1.4V 1 4 MDIP DC 18µs 50 mA 5000 Vrms - 400% - 18µs
RS Stock No. 597-302
Mfr. Part No.4N35
BrandIsocom
PHP34.45
Each
units
Through Hole Transistor 1.5V 1 6 PDIP DC 2µs 60 mA 5.3 kVrms - - 40 % 2µs
RS Stock No. 168-8528
Mfr. Part No.4N25
BrandIsocom
PHP18.582
Each (In a Tube of 65)
units
Through Hole Transistor 1.5V 1 6 PDIP DC 2µs 60 mA 5.3 kVrms - - 20 % 2µs
RS Stock No. 184-1322
Mfr. Part No.MOC3063M
PHP33.808
Each (In a Pack of 10)
units
Through Hole Triac Driver 1.5V 1 6 DIP - - 60 mA 4170 (Minimum) Vrms ac Yes - - -
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