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. 830-3436
Mfr. Part No.PVD1354NPBF
BrandInfineon
€6.85
Each (In a Pack of 2)
units
- - - - - - - - - - - - - -
RS Stock No. 166-2315
Mfr. Part No.FOD260L
€0.67
Each (In a Bag of 1000)
units
Through Hole Logic Gate 1.8V 1 8 DIP DC 22ns 50 mA 5 kVrms Yes - - 3ns
RS Stock No. 913-4711
Mfr. Part No.PVI1050NPBF
BrandInfineon
€8.559
Each (In a Tube of 50)
units
Through Hole IGBT Gate Drive, MOSFET 8V 2 8 DIP DC 90 μs, 160 μs, 300 μs 50 mA dc 2500 Vrms - - - 220µs
RS Stock No. 547-4119
Mfr. Part No.HCPL-2300-000E
BrandBroadcom
€5.57
Each
units
Through Hole Logic Gate 1.65V - 8 DIP DC 40ns 1 mA 3.75 kVrms Yes - - 20ns
RS Stock No. 178-3226
Mfr. Part No.HCPL-0601
BrandBroadcom
€1.508
Each (In a Tube of 100)
units
Surface Mount Transistor 1.75V 1 8 SOIC DC 24ns 20 mA 3.75 kVrms Yes - - 10ns
RS Stock No. 708-5281
Mfr. Part No.4N32
BrandVishay
€0.329
Each (In a Pack of 10)
units
Through Hole Darlington 1.5V 1 6 PDIP DC - 60 mA 5300 V ac - - 500 % -
RS Stock No. 178-7533
Mfr. Part No.CNY174SR2M
€0.199
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.65V 1 6 MDIP DC 6µs 60 mA 7.5 kVrms - - - 24µs
RS Stock No. 903-4217
Mfr. Part No.FOD817C3SD
€0.376
Each (In a Pack of 50)
units
Surface Mount Phototransistor 1.4V 1 4 PDIP AC 4µs - 5000 V ac Yes 600% - 3µs
RS Stock No. 165-2520
Mfr. Part No.VO610A-3X007T
BrandVishay
€0.197
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.6V 1 4 SMD DC 3µs 60 mA 5 kVrms - 200% 100 % 4.7µs
RS Stock No. 166-2368
Mfr. Part No.H11F1VM
€1.311
Each (In a Bag of 1000)
units
Through Hole - 1.75V 1 6 MDIP DC 45µs 60 mA 7.5 kVrms - - - 45µs
RS Stock No. 691-2319
Mfr. Part No.MOC3063S-TA1
BrandLite-On
€0.458
Each (In a Pack of 5)
units
Surface Mount Phototriac - 1 6 PDIP - - 50 mA 5 kVrms - - - -
RS Stock No. 739-4983
Mfr. Part No.FODM8061
€1.35
Each
units
Surface Mount Logic Gate 1.8V - 5 SO DC 20ns 50 mA 3750 V ac Yes - - 10ns
RS Stock No. 818-4538
Mfr. Part No.VOS615A-2X001T
BrandVishay
€0.426
Each (In a Pack of 20)
units
Surface Mount Phototransistor 1.5V 1 4 SSOP DC 3µs 50 mA 3750 Vrms - 125% - 3µs
RS Stock No. 710-4881
Mfr. Part No.ILD217T
BrandVishay
€1.136
Each (In a Pack of 5)
units
Surface Mount Transistor 1.55V 2 8 SOIC DC - 30 mA 4000 V ac - 120% 100 % -
RS Stock No. 168-9680
Mfr. Part No.LTV-847S
BrandLite-On
€0.586
Each (In a Tube of 25)
units
Surface Mount Transistor 1.4V 4 16 PDIP DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs
RS Stock No. 169-8727
Mfr. Part No.MOC3023VM
€0.189
Each (In a Bag of 1000)
units
Through Hole Phototriac 1.5V 1 6 DIP AC - 60 mA 5.3 kVrms Yes - - -
RS Stock No. 807-6648
Mfr. Part No.HCPL0701R2
€0.612
Each (In a Pack of 5)
units
Surface Mount Darlington 1.7V 1 8 MDIP DC - 20 mA 2500 Vrms Yes 5000% - -
RS Stock No. 178-4829
Mfr. Part No.MCT62
€0.264
Each (In a Bag of 1000)
units
Through Hole Phototransistor 1.5V 2 8 PDIP, PDIP-W DC - 60 mA 5 kVrms - - 100 % -
RS Stock No. 166-1948
Mfr. Part No.4N33SR2M
€0.191
Each (On a Reel of 1000)
units
Surface Mount Darlington 1.5V 1 6 DIP - 5µs 3 A 1.5 kVrms Yes 500% - 100µs
RS Stock No. 173-2647
Mfr. Part No.LTV-356T
BrandLite-On
€0.097
Each (On a Reel of 3000)
units
Surface Mount Transistor 1.4V 1 4 Mini-Flat DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs