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. 171-8160
Mfr. Part No.H11G1X
BrandIsocom
HK$4.981
Each (In a Tube of 65)
units
Surface Mount Darlington 1.5V 1 6 DIP DC 100µs 50 mA 5.3 kVrms, 7500 V Pk - - 1000% 20µs
RS Stock No. 699-8287
Mfr. Part No.TCLT1002
BrandVishay
HK$4.48
Each (In a Pack of 10)
units
Surface Mount Phototransistor 1.6V 1 4 SOP DC 3µs 60 mA 5000 V ac - 125% 63 % 4.7µs
RS Stock No. 165-2526
Mfr. Part No.VO615A-6X017T
BrandVishay
HK$2.31
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.6V 1 4 PDIP DC 3µs 60 mA 5 kVrms - 300% 100 % 4.7µs
RS Stock No. 885-1308
Mfr. Part No.TLP358H(F)
BrandToshiba
HK$28.32
Each (In a Pack of 4)
units
Through Hole Photo IC 1.75V 1 8 DIP - 17ns 2 mA 3750 Vrms Yes - - 17ns
RS Stock No. 864-9265
Mfr. Part No.FODM8071R2
HK$15.66
Each (In a Pack of 5)
units
Surface Mount Logic Gate 1.8V 1 5 Mini-Flat - 5.8ns 20 mA 3750 Vrms Yes - - 5.3ns
RS Stock No. 171-7956
Mfr. Part No.MOC3040SM
BrandIsocom
HK$4.197
Each (In a Tube of 65)
units
- - - - - - - - - - - - - -
RS Stock No. 180-8651
Mfr. Part No.ILQ32-X009
BrandVishay
HK$31.548
Each (In a Pack of 5)
units
- - - - - - - - - - - - - -
RS Stock No. 173-2829
Mfr. Part No.TLP185(GR,E(O
BrandToshiba
HK$1.59
Each (On a Reel of 3000)
units
Surface Mount Transistor 1.4V 1 4 SOIC DC 5µs 50 mA 3.75 kVrms - 300% 100 % 9µs
RS Stock No. 171-7115
Mfr. Part No.4N32G
BrandIsocom
HK$2.681
Each (In a Tube of 65)
units
Through Hole Phototransistor 1.5V 1 6 DIP DC 5µs 80 mA 5.3 kVrms, 7500 V Pk - - - 100µs
RS Stock No. 896-2464
Mfr. Part No.TLP171J(F(O
BrandToshiba
HK$22.65
Each (In a Pack of 2)
units
Surface Mount MOSFET 1.4V 1 4 SOP AC - 30 mA 1.5 kVrms - - - -
RS Stock No. 161-1249
Mfr. Part No.TIL198B
BrandIsocom
HK$10.024
Each (In a Pack of 10)
units
Through Hole - 1.4V 2 8 - AC 100µs 50 mA 5300 (Minimum) Vrms - 7500% 1500% 100µs
RS Stock No. 180-7152
Mfr. Part No.MCT62H
BrandVishay
HK$5.73
Each (In a Pack of 20)
units
Through Hole Phototransistor 1.6V 2 8 DIP - 3µs 60 mA 5.3 kVrms - 200% 100% 4.7µs
RS Stock No. 796-5165
Mfr. Part No.TLP220G
BrandToshiba
HK$27.00
Each
units
Through Hole MOSFET 1.75V 1 4 DIP AC 0.1ms 100 mA 5000 Vrms - - - 0.2ms
RS Stock No. 171-7924
Mfr. Part No.MOC3010SM
BrandIsocom
HK$3.444
Each (In a Tube of 65)
units
- - - - - - - - - - - - - -
RS Stock No. 691-2268
Mfr. Part No.MOC3020M
BrandLite-On
HK$5.59
Each (In a Pack of 5)
units
Through Hole Phototriac - 1 6 PDIP - - 50 mA 5 kVrms - - - -
RS Stock No. 173-6538
Mfr. Part No.ICPL2601SM
BrandIsocom
HK$6.628
Each (In a Tube of 50)
units
Surface Mount Photodetector 1.8V 1 8 DIP - 40ns 50 mA 5000 (Minimum) Vrms Yes - - 10ns
RS Stock No. 144-5224
Mfr. Part No.TLP701AF(F)
BrandToshiba
HK$13.82
Each (In a Pack of 5)
units
Surface Mount IGBT 1.8V 1 6 SDIP DC 50ns 25 (Forward Current) mA 5000 Vrms - - - 50ns
RS Stock No. 922-6649
Mfr. Part No.ACPL-K73L-000E
BrandBroadcom
HK$37.74
Each (In a Tube of 80)
units
Surface Mount Transistor 1.85V 2 8 SOIC DC 0.004µs - 5000 V ac Yes - - 0.004µs
RS Stock No. 773-0165
Mfr. Part No.VO617A-8X017T
BrandVishay
HK$5.25
Each (In a Bag of 10)
units
Surface Mount Phototransistor 1.65V 1 4 SMD DC 4.6µs 60 mA 5300 Vrms - 260% - 15µs
RS Stock No. 166-2442
Mfr. Part No.H11F3M
HK$11.81
Each (In a Bag of 1000)
units
Through Hole Transistor 1.75V 1 6 PDIP DC - 60 mA 7.5 kVrms Yes - - -
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