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. 171-8268
Mfr. Part No.MCT210XSMT&R
BrandIsocom
€0.237
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.5V 1 6 DIP DC 5µs 50 mA 5.3 kVrms, 7500 V Pk - - 150 (10 mA) %, 50 (3.2 mA) % 4µs
RS Stock No. 708-5332
Mfr. Part No.CNY17G-2
BrandVishay
€0.463
Each (In a Pack of 20)
units
Through Hole Phototransistor 1.6V 1 6 PDIP DC 7µs 60 mA 5000 V ac - 125% 63 % 6.7µs
RS Stock No. 173-6536
Mfr. Part No.TLP621-4GRSM
BrandIsocom
€0.614
Each (In a Tube of 25)
units
Surface Mount NPN Phototransistor 1.3V 1 16 DIP - 2µs 50 mA 5300 (Minimum) Vrms - 300% 100% 3µs
RS Stock No. 922-6680
Mfr. Part No.HCNR201-300E
BrandBroadcom
€3.149
Each (In a Tube of 42)
units
Surface Mount Photodiode 1.95V 1 8 PDIP-W DC - 25 mA 5000 V ac - - - -
RS Stock No. 171-7284
Mfr. Part No.H11AA1XSMT&R
BrandIsocom
€0.416
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.5V 1 6 DIP AC 4µs 50 mA 5.3 kVrms, 7500 V Pk - - 20% 3µs
RS Stock No. 173-6690
Mfr. Part No.SFH620A-3SM
BrandIsocom
€0.199
Each (In a Tube of 100)
units
Surface Mount NPN Phototransistor 1.65V 1 4 DIP - 4µs ±50 mA 5300 (Minimum) Vrms - 320% 100% 3µs
RS Stock No. 710-4001
Mfr. Part No.VO4156D-X007T
BrandVishay
€0.716
Each (In a Pack of 5)
units
Surface Mount Phototriac - 1 6 PDIP - - 60 mA 5300 V ac - - - -
RS Stock No. 180-7069
Mfr. Part No.VOR1142M4
BrandVishay
€1.153
Each (In a Tube of 100)
units
Surface Mount MOSFET 1.5V 1 4 SOP - - 50 mA 3.75 kVrms - - - -
RS Stock No. 453-0656
Mfr. Part No.ISP817XC
BrandIsocom
€0.402
Each (In a Pack of 10)
units
Through Hole Phototransistor 1.4V 1 4 PDIP DC 4µs 50 mA 5.3 kVrms - 400% 200 % 3µs
RS Stock No. 806-6077
Mfr. Part No.MOC3082SVM
€0.926
Each (In a Pack of 5)
units
Surface Mount Phototriac 1.5V 1 6 MDIP AC - 60 mA 7500 V ac Yes - - -
RS Stock No. 171-8639
Mfr. Part No.AQV252
BrandPanasonic
€4.16
Each
units
Through Hole MOSFET - - 6 DIP DC - 50 mA 1.5 kVrms - - - -
RS Stock No. 173-6590
Mfr. Part No.SFH600-1SMT&R
BrandIsocom
€0.214
Each (On a Reel of 1000)
units
Surface Mount NPN Phototransistor 1.65V 1 6 DIP - 3µs 60 mA 5300 (Minimum) Vrms - 125% 63% 14µs
RS Stock No. 708-5336
Mfr. Part No.CNY17G-3
BrandVishay
€0.474
Each (In a Pack of 20)
units
Through Hole Phototransistor 1.6V 1 6 PDIP DC 7µs 60 mA 5000 V ac - 200% 100 % 6.7µs
RS Stock No. 171-8172
Mfr. Part No.H11L2G
BrandIsocom
€0.347
Each (In a Tube of 65)
units
Through Hole Schmitt Trigger 1.5V 1 6 DIP DC 0.1µs 60 mA 5 kVrms, 7000 V Pk - - - 0.05µs
RS Stock No. 178-3214
Mfr. Part No.ACNT-H61L-000E
BrandBroadcom
€2.986
Each (In a Tube of 80)
units
- CMOS 1.85V - - - - - 10 mA 7.5 kVrms - - - -
RS Stock No. 885-1238
Mfr. Part No.TLP705A(F)
BrandToshiba
€1.394
Each (In a Pack of 5)
units
Surface Mount Photo IC 1.8V 1 6 SDIP - 35ns 3 mA 5000 Vrms - - - 15ns
RS Stock No. 178-3136
Mfr. Part No.ACPL-32JT-000E
BrandBroadcom
€5.257
Each (In a Tube of 45)
units
- - 1.85V - - - - - 16 mA 5 kVrms - - - -
RS Stock No. 169-8776
Mfr. Part No.FODM2701R2
€0.145
Each (On a Reel of 2500)
units
Surface Mount Phototransistor 1.4V 1 4 MFP DC 3µs 50 mA 3.75 kVrms - 300% - 3µs
RS Stock No. 144-5208
Mfr. Part No.TLP185(BLL-TR,SE(T
BrandToshiba
€0.172
Each (In a Pack of 50)
units
Surface Mount Phototransistor 1.4V 1 4 SO6 DC 2µs 50 (Forward Current) mA 3750 Vrms - 400% 200% 3µs
RS Stock No. 161-1013
Mfr. Part No.MOC3012
BrandIsocom
€0.505
Each (In a Tube of 65)
units
Through Hole Triac 1.5V 1 6 DIP AC - 50 mA 5300 (Minimum) Vrms - - - -
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