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. 171-2992
Mfr. Part No.IS354 V2
BrandIsocom
$0.829
Each (In a Pack of 20)
units
Surface Mount Phototransistor 1.4V 2 4 DIP - 4µs 50 (Forward) mA 3.75 kVrms, 5300 V Pk - 400% 20% 3µs
RS Stock No. 773-0247
Mfr. Part No.VOM617A-4X001T
BrandVishay
$0.897
Each (On a Tape of 25)
units
Surface Mount Phototransistor 1.6V 1 4 SOP DC 7µs 60 mA 3750 Vrms - 320% - 12µs
RS Stock No. 178-4834
Mfr. Part No.CNY17F2SM
$0.401
Each (In a Bag of 1000)
units
Surface Mount Phototransistor 1.65V 1 6 MDIP DC 6µs 60 mA 7.5 kVrms - - - 24µs
RS Stock No. 168-7420
Mfr. Part No.TLP161J(TPL,U,C,F)
BrandToshiba
$1.895
Each (On a Tape of 150)
units
Surface Mount Phototriac 1.3V 1 4 MFSOP6 DC - 50 mA 2.5 kVrms - - - -
RS Stock No. 885-1020
Mfr. Part No.TLP385(GR,E(T
BrandToshiba
$0.336
Each (In a Pack of 25)
units
Surface Mount Phototransistor 1.4V 1 4 SO-6L DC 2µs 50 mA 5000 Vrms - 300% - 3µs
RS Stock No. 806-4147
Mfr. Part No.MCT2ESM
$0.826
Each (In a Pack of 25)
units
Surface Mount Phototransistor 1.5V 1 6 MDIP DC 2µs 60 mA 7500 V ac - - - 1.5µs
RS Stock No. 173-6636
Mfr. Part No.SFH617A-1XG
BrandIsocom
$0.368
Each (In a Tube of 100)
units
Through Hole NPN Phototransistor 1.65V 1 4 DIP - 4µs 50 mA 5300 (Minimum) Vrms - 80% 40% 3µs
RS Stock No. 161-1057
Mfr. Part No.IS314W
BrandIsocom
$1.053
Each (On a Reel of 1000)
units
Surface Mount IGBT, MOSFET 1.8V 2 6 SO DC 35ns 1 (Peak Current) A 5000 (Minimum) Vrms - - - 35ns
RS Stock No. 178-1663
Mfr. Part No.HCPL-181-00CE
BrandBroadcom
$0.296
Each (On a Reel of 3000)
units
- - - - - - - - - - - - - -
RS Stock No. 178-3242
Mfr. Part No.ACPL-W454-000E
BrandBroadcom
$2.981
Each (In a Tube of 100)
units
Surface Mount Phototransistor 1.8V 1 6 SO DC - 25 mA 5 kVrms - 65% 25 % -
RS Stock No. 173-6589
Mfr. Part No.SFH600-1SM
BrandIsocom
$0.464
Each (In a Tube of 65)
units
Surface Mount NPN Phototransistor 1.65V 1 6 DIP - 3µs 60 mA 5300 (Minimum) Vrms - 125% 63% 14µs
RS Stock No. 885-0960
Mfr. Part No.TLP291(GB,SE(T
BrandToshiba
$0.218
Each (In a Pack of 50)
units
Surface Mount Phototransistor 1.4V 1 4 SO4 DC 4µs 50 mA 3750 Vrms - 400% - 7µs
RS Stock No. 161-1143
Mfr. Part No.IS281-4
BrandIsocom
$2.838
Each (In a Pack of 5)
units
Surface Mount NPN Phototransistor 1.4V 4 16 SMD DC 6µs 50 mA 3750 (Minimum) Vrms - 600% 50% 6µs
RS Stock No. 171-7159
Mfr. Part No.CNY17-1
BrandIsocom
$0.40
Each (In a Tube of 65)
units
Surface Mount Phototransistor 1.65V 1 6 DIP DC 2µs 60 mA 5.3 kVrms - 80% 40% 11µs
RS Stock No. 756-3772
Mfr. Part No.TLP781F(D4GR-TP7,F
BrandToshiba
$0.646
Each (In a Pack of 10)
units
Surface Mount Phototransistor 1.3V 1 4 DIP DC 2µs 25 mA 5000 V ac - 300% 100 % 3µs
RS Stock No. 166-2315
Mfr. Part No.FOD260L
$1.584
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. 171-8003
Mfr. Part No.TLP321-2SMT&R
BrandIsocom
$0.839
Each (On a Reel of 1000)
units
- - - - - - - - - - - - - -
RS Stock No. 171-7093
Mfr. Part No.4N27XG
BrandIsocom
$0.442
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 - - 10% 2µs
RS Stock No. 165-2526
Mfr. Part No.VO615A-6X017T
BrandVishay
$0.47
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. 818-8329
Mfr. Part No.HCPL-2430-300E
BrandBroadcom
$20.26
Each
units
Surface Mount Logic Gate 1.55V 2 8 DIP DC 20ns 8 mA 3750 Vrms Yes - - 10ns
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