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. 161-1171
Mfr. Part No.SFH615A-2SMT&R
BrandIsocom
€0.442
Each (In a Pack of 20)
units
Surface Mount NPN Phototransistor 1.65V 1 4 SMD AC 3µs 50 mA 5300 (Minimum) Vrms - 125% 63% 14µs
RS Stock No. 710-5032
Mfr. Part No.TCLD1000
BrandVishay
€0.474
Each (In a Pack of 10)
units
Surface Mount Darlington 1.6V 1 4 SOP DC 300µs 60 mA 5000 V ac - 800% 600 % -
RS Stock No. 161-1180
Mfr. Part No.MOC3062
BrandIsocom
€0.772
Each (In a Pack of 10)
units
Through Hole Triac 1.4V 1 6 DIP AC - 50 mA 5300 (Minimum) Vrms - - - -
RS Stock No. 171-7251
Mfr. Part No.H11A3G
BrandIsocom
€0.174
Each (In a Tube of 65)
units
Through Hole Phototransistor 1.5V 1 6 DIP DC 2µs 80 mA 5.3 kVrms, 7500 V Pk - - 20% 2µs
RS Stock No. 171-7094
Mfr. Part No.4N27XSM
BrandIsocom
€0.19
Each (In a Tube of 65)
units
Surface Mount Phototransistor 1.5V 1 6 DIP DC 2µs 80 mA 5.3 kVrms, 7500 V Pk - - 10% 2µs
RS Stock No. 699-8458
Mfr. Part No.VO615A-8X017T
BrandVishay
€0.528
Each (In a Pack of 20)
units
Through Hole Phototransistor 1.6V 1 4 PDIP DC 3µs 60 mA 5000 V ac - 260% 130 % 4.7µs
RS Stock No. 146-2112
Mfr. Part No.4N32SM
€0.226
Each (In a Bag of 1000)
units
Surface Mount Darlington 1.5V 1 6 DIP DC 5µs 3 A 2.5 kVrms Yes 500% - 100µs
RS Stock No. 171-8072
Mfr. Part No.TLP621GBSM
BrandIsocom
€0.15
Each (In a Tube of 100)
units
- - - - - - - - - - - - - -
RS Stock No. 186-4452
Mfr. Part No.PS8902-Y-V-AX
€2.76
Each (In a Pack of 2)
units
Surface Mount Photodiode 1.85V 1 8 DIP - 0.5µs 16 mA 7.5 kVrms - 35% 15% 0.3µs
RS Stock No. 166-1702
Mfr. Part No.HCPL2601
€0.711
Each (In a Bag of 1000)
units
Through Hole Logic Gate 1.8V 1 8 DIP DC 50ns 50 mA 2.5 kVrms Yes - - 12ns
RS Stock No. 171-7977
Mfr. Part No.MOC3063G
BrandIsocom
€0.331
Each (In a Tube of 65)
units
- - - - - - - - - - - - - -
RS Stock No. 171-8190
Mfr. Part No.ISP814XG
BrandIsocom
€0.205
Each (In a Tube of 100)
units
Through Hole Phototransistor 1.4V 1 4 DIP AC 4µs ±50 mA 5.3 kVrms, 7500 V Pk - 300% 20% 3µs
RS Stock No. 802-3222
Mfr. Part No.FODM3012R2-NF098
€0.604
Each (In a Pack of 10)
units
Surface Mount Phototriac 1.5V 1 4 MFP - - 1 A 3750 Vrms - - - -
RS Stock No. 174-4172
Mfr. Part No.HCPL-7710-500E
BrandBroadcom
€3.815
Each (In a Pack of 2)
units
Through Hole - - 2 8 DIP - 13ns 10 mA 3750 Vrms Yes - - 5ns
RS Stock No. 166-2443
Mfr. Part No.4N33M
€0.205
Each (In a Bag of 1000)
units
Through Hole - - 1 6 PDIP - 5µs - - - - - 100µs
RS Stock No. 186-4409
Mfr. Part No.PS9317L-AX
€1.945
Each (In a Pack of 2)
units
Surface Mount Photodiode 1.9V 1 6 DIP - 35ns 10 mA 5 kVrms - - - 40ns
RS Stock No. 180-8677
Mfr. Part No.ILD2-X009
BrandVishay
€0.456
Each (In a Pack of 5)
units
- - - - - - - - - - - - - -
RS Stock No. 178-3160
Mfr. Part No.HCPL-3760-000E
BrandBroadcom
€3.376
Each (In a Tube of 50)
units
Through Hole Darlington - 1 8 PDIP AC, DC 14µs 50 mA 3.75 kVrms Yes - - 0.4µs
RS Stock No. 171-7082
Mfr. Part No.4N25XSMT&R
BrandIsocom
€0.253
Each (On a Reel of 1000)
units
Surface Mount Phototransistor 1.5V 1 6 DIP DC 2µs 80 mA 5.3 kVrms, 7500 V Pk - - 20% 2µs
RS Stock No. 184-4790
Mfr. Part No.FOD814ASD
€0.25
Each (In a Pack of 25)
units
Surface Mount Phototransistor 1.4V 1 4 SMT AC/DC 4µs 50 mA 5000 (Minimum) Vrms ac - 150% 50% 3µs
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