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. 165-5791
Mfr. Part No.PVI5050NSPBF
BrandInfineon
HK$46.72
Each (In a Tube of 50)
units
Surface Mount MOSFET 8V 1 4 DIP DC 300µs 50 mA dc 4 kVrms - - - 220µs
RS Stock No. 739-0256
Mfr. Part No.MOC3083M
HK$6.50
Each (In a Pack of 5)
units
Through Hole Triac 1.5V 1 6 DIP DC - 60 mA 7500 V ac - - - -
RS Stock No. 178-3135
Mfr. Part No.ACPL-339J-000E
BrandBroadcom
HK$43.13
Each (In a Tube of 45)
units
Surface Mount IGBT Gate Drive, MOSFET 1.95V 1 16 SO DC 80ns 10 mA 5 kVrms Yes - - 45ns
RS Stock No. 178-0924
Mfr. Part No.SFH615A-3
BrandVishay
HK$3.35
Each (In a Tube of 100)
units
Through Hole Phototransistor 1.65V 1 4 PDIP DC 3µs 60 mA 5.3 kVrms - 200% 100 % 14µs
RS Stock No. 173-8175
Mfr. Part No.AQV251
BrandPanasonic
HK$42.70
Each (In a Tube of 50)
units
Through Hole MOSFET - - 6 DIP DC - 50 mA 1.5 kVrms - - - -
RS Stock No. 178-1663
Mfr. Part No.HCPL-181-00CE
BrandBroadcom
HK$1.51
Each (On a Reel of 3000)
units
- - - - - - - - - - - - - -
RS Stock No. 159-6455
Mfr. Part No.SFH6156-2T
BrandVishay
HK$2.31
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. 547-3964
Mfr. Part No.HCNW4506-000E
BrandBroadcom
HK$26.90
Each
units
Through Hole Inverter, Open-Collector 1.85V 1 8 PDIP-W DC - 25 mA 3.75 kVrms Yes 90% 44 % -
RS Stock No. 168-9679
Mfr. Part No.LTV-847
BrandLite-On
HK$5.73
Each (In a Tube of 25)
units
Through Hole Transistor 1.4V 4 16 PDIP DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs
RS Stock No. 178-3125
Mfr. Part No.HCNW4506-000E
BrandBroadcom
HK$19.77
Each (In a Tube of 42)
units
Through Hole Inverter, Open-Collector 1.85V 1 8 PDIP-W DC - 25 mA 3.75 kVrms Yes 90% 44 % -
RS Stock No. 166-2236
Mfr. Part No.HCPL2531S
HK$8.43
Each (In a Bag of 1000)
units
Surface Mount Phototransistor 1.8V 2 8 MDIP DC 1.5µs 25 mA 2.5 kVrms Yes 50% - 1.5µs
RS Stock No. 818-8265
Mfr. Part No.ACPL-339J-000E
BrandBroadcom
HK$57.59
Each
units
Surface Mount IGBT Gate Drive, MOSFET 1.95V 1 16 SO DC 80ns 10 mA 5000 Vrms Yes - - 45ns
RS Stock No. 168-8528
Mfr. Part No.4N25
BrandIsocom
HK$3.31
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. 625-7909
Mfr. Part No.6N137(F)
BrandToshiba
HK$12.30
Each
units
Through Hole Transistor 1.75V 1 8 DIP DC 30ns 20 mA 2.5 kVrms Yes 1000% 1000 % 30ns
RS Stock No. 597-289
Mfr. Part No.4N25
BrandIsocom
HK$4.76
Each
units
Through Hole Transistor 1.5V 1 6 PDIP DC 2µs 60 mA 5.3 kVrms - - 20 % 2µs
RS Stock No. 169-8548
Mfr. Part No.MOC3062M
HK$2.977
Each (In a Bag of 1000)
units
Through Hole Triac - 1 6 PDIP - - 60 mA 7.5 kVrms - - - -
RS Stock No. 885-1225
Mfr. Part No.TLP2168(F)
BrandToshiba
HK$22.994
Each (In a Pack of 5)
units
Surface Mount Photo IC 1.8V 1 8 SOIC - 30ns 8 mA 2500 Vrms Yes - - 30ns
RS Stock No. 839-9989
Mfr. Part No.HCPL-181-00CE
BrandBroadcom
HK$3.142
Each (In a Pack of 25)
units
Surface Mount Phototransistor 1.4V 1 4 SOIC DC 4µs 30 mA 3750 Vrms - 400% - 3µs
RS Stock No. 124-1738
Mfr. Part No.HCPL2630
HK$14.47
Each (In a Tube of 50)
units
Through Hole Logic Gate 1.8V 1 8 DIP DC 50ns 50 mA 2500 V ac Yes - - 12ns
RS Stock No. 186-022
Mfr. Part No.TLP350(F)
BrandToshiba
HK$17.015
Each (In a Pack of 2)
units
Through Hole IGBT Gate Drive, MOSFET - 1 8 PDIP DC - - 3.75 kVrms Yes - - -
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