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. 693-5252
Mfr. Part No.CNY17-3-300E
BrandBroadcom
HK$2.444
Each (In a Pack of 10)
units
Surface Mount Transistor 1.7V 1 6 PDIP DC 5µs 60 mA 5 kVrms - 200% 100 % 5µs
RS Stock No. 699-8341
Mfr. Part No.TCMT1107
BrandVishay
HK$4.17
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. 453-1025
Mfr. Part No.MOC3020X
BrandIsocom
HK$5.626
Each (In a Pack of 10)
units
Through Hole Triac - 1 6 PDIP - - 50 mA 5.3 kVrms - - - -
RS Stock No. 144-5157
Mfr. Part No.TLP185(TPL,SE(T
BrandToshiba
HK$0.853
Each (On a Reel of 3000)
units
Surface Mount Phototransistor 1.4V 1 4 SO6 DC 2µs 50 (Forward Current) mA 3750 Vrms - 600% 50% 3µs
RS Stock No. 171-2965
Mfr. Part No.H11L1
BrandIsocom
HK$4.201
Each (In a Tube of 65)
units
Through Hole Schmitt Trigger 1.5V 1 6 - DC 0.1µs 60 (Forward) mA 5 kVrms - - - 0.1µs
RS Stock No. 161-1250
Mfr. Part No.IS281BL
BrandIsocom
HK$2.715
Each (In a Pack of 20)
units
Surface Mount NPN Phototransistor 1.4V 1 4 SMD DC 6µs 50 mA 3750 (Minimum) Vrms - 260% 130% 6µs
New
RS Stock No. 186-8280
Mfr. Part No.FOD8342R2
HK$24.02
Each (In a Pack of 5)
units
Surface Mount IGBT, MOSFET 1.8V 1 6 SOIC - 38ns 10 mA 5 kVrms Yes - - 24ns
RS Stock No. 180-7068
Mfr. Part No.VOR1142B4
BrandVishay
HK$11.38
Each (In a Tube of 50)
units
Through Hole MOSFET 1.5V 1 4 DIP - - 50 mA 5.3 kVrms - - - -
RS Stock No. 174-3607
Mfr. Part No.ACPL-072L-500E
BrandBroadcom
HK$18.549
Each (On a Reel of 1500)
units
Surface Mount CMOS, TTL - 1 8 SO - 9ns 15 mA - Yes - - 8ns
RS Stock No. 885-1124
Mfr. Part No.TLP292(V4-GRTL,E(T
BrandToshiba
HK$1.729
Each (In a Pack of 25)
units
Surface Mount Phototransistor 1.4V 1 4 SO4 AC, DC 2µs ±50 mA 3750 Vrms - 300% - 3µs
RS Stock No. 184-4220
Mfr. Part No.FOD814ASD
HK$1.527
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.4V 1 4 SMT - 4µs 50 mA 5000 (Minimum) Vrms ac - 150% 50% 3µs
RS Stock No. 919-0124
Mfr. Part No.ILQ621
BrandVishay
HK$12.079
Each (In a Tube of 25)
units
Through Hole Transistor 1.3V 4 16 PDIP DC 2.8µs 60 mA 5300 V ac - 600% 50 % 11µs
RS Stock No. 922-6541
Mfr. Part No.HCPL-2232-000E
BrandBroadcom
HK$47.45
Each (In a Tube of 50)
units
Through Hole Logic Gate 1.85V 2 8 DIP - 30ns 230 mA 3750 Vrms Yes - - 7ns
RS Stock No. 185-8758
Mfr. Part No.FODM217AV
HK$5.571
Each (In a Pack of 13)
units
Surface Mount - 1.4V 1 4 SOP - 3µs 50 mA 3750 Vrms ac Yes 160% 80% 3µs
RS Stock No. 174-3639
Mfr. Part No.HCNW2611-500E
BrandBroadcom
HK$14.704
Each (On a Reel of 750)
units
Through Hole Transistor 2.05V 1 8 DIP - 24ns 20 mA 5000 Vrms Yes - - 10ns
RS Stock No. 135-7873
Mfr. Part No.CPC1001N
BrandIXYS
HK$3.38
Each (In a Tube of 100)
units
- - - - - - - - 200 (Control Current) μA 1500 Vrms - - - -
RS Stock No. 691-2296
Mfr. Part No.MOC3023M
BrandLite-On
HK$3.334
Each (In a Pack of 5)
units
Through Hole Triac - 1 6 PDIP - - 50 mA 5 kVrms - - - -
RS Stock No. 180-7231
Mfr. Part No.VOM617A-4T
BrandVishay
HK$1.37
Each (In a Pack of 20)
units
Surface Mount Phototransistor 1.6V 1 4 SOP DC 7µs 60 mA 3.75 kVrms - 320% 160% 7µs
New
RS Stock No. 186-4425
Mfr. Part No.PS2911-1-AX
HK$7.94
Each (In a Pack of 5)
units
Surface Mount Phototransistor 1.3V 1 4 - DC 5µs 1 mA 2.5 kVrms - 400% 100% 10µs
RS Stock No. 699-8436
Mfr. Part No.VO615A-3X017T
BrandVishay
HK$1.978
Each (In a Pack of 20)
units
Through Hole Phototransistor 1.6V 1 4 DIP, PDIP DC 3µs 60 mA 5000 V ac - 200% 100 % 4.7µs
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