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
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RS庫存編號 210-8027
製造零件編號140816140410
HK$2.265
/個 (每包:50個)
單位
Through Hole - 1.4V 4 4 DIP DC - - - - - - -
RS庫存編號 186-8496
製造零件編號FOD2741A
HK$10.513
/個 (每包:10個)
單位
Through Hole - 1.5V 1 8 PDIP - - 20 mA 5 kVrms - 200% 100% -
RS庫存編號 708-5358
製造零件編號IL300-EF
BrandVishay
HK$73.94
單位
Through Hole Photodiode 1.5V 1 8 PDIP DC 1.75µs 60 mA 5300 V ac - - - 1.75µs
RS庫存編號 180-7062
製造零件編號VOM1271T
BrandVishay
HK$8.261
個 (在毎卷:2000)
單位
Surface Mount MOSFET 1.6V 1 4 SOP - - 50 mA 4.5 kVrms Yes - - -
RS庫存編號 146-0767
製造零件編號PC357N1J000F
BrandSharp
HK$4.244
/個 (每包:50個)
單位
Surface Mount Transistor 1.4V 1 4 Mini-Flat AC 4µs 50 mA 3.75 kV Yes 600% 50% 3µs
RS庫存編號 168-9663
製造零件編號LTV-817M-A
BrandLite-On
HK$1.071
毎管:100 個
單位
Through Hole Phototransistor 1.4V 1 4 DIP DC 4µs 50 mA 5 kVrms - 160% 80 % 3µs
RS庫存編號 830-4993
製造零件編號ACPL-M483-000E
BrandBroadcom
HK$27.21
/個 (每包:4個)
單位
Surface Mount Inverter, Totem-Pole 1.7V 1 5 SO5 DC 6ns 10 mA 5000 Vrms Yes - - 6ns
RS庫存編號 165-6276
製造零件編號ILD256T
BrandVishay
HK$5.511
個 (在毎卷:2000)
單位
Surface Mount Phototransistor 1.55V 2 8 SOIC AC - 30 mA 4 kVrms - 20% - -
RS庫存編號 161-1261
製造零件編號IS281D
BrandIsocom
HK$4.15
/個 (每包:20個)
單位
Surface Mount NPN Phototransistor 1.4V 1 4 SMD DC 6µs 50 mA 3750 (Minimum) Vrms - 600% 300% 6µs
RS庫存編號 171-2946
製造零件編號TLP621-2
BrandIsocom
HK$3.779
毎管:50 個
單位
Through Hole Phototransistor 1.3V 2 8 DIP - 2µs 50 (Forward) mA 5.3 kVrms - 600% 50% 3µs
RS庫存編號 903-4273
製造零件編號HCPL2631V
HK$24.504
/個 (每包:5個)
單位
Surface Mount Photodetector 1.8V 2 8 DIP DC 50ns 30 mA 2500 Vrms Yes - - 12ns
RS庫存編號 196-3296
製造零件編號RV1S9260ACCSP-10YV#SC0
HK$19.828
/個 (每包:5個)
單位
Surface Mount - 1.7V 1 5 - DC 5µs 20 mA 5 kVrms Yes - - 5ns
RS庫存編號 818-8230
製造零件編號6N139-000E
BrandBroadcom
HK$7.715
/個 (每包:10個)
單位
Through Hole Phototransistor 1.75V 1 8 DIP DC - 12 mA 3750 Vrms Yes 5000% - -
RS庫存編號 186-4353
製造零件編號PS2381-1Y-V-AX
HK$5.209
/個 (每包:10個)
單位
Surface Mount Phototransistor 1.4V 1 4 LSOP DC 4µs 10 mA 5 kVrms - 400% 50% 5µs
RS庫存編號 168-7594
製造零件編號TLP3041(S,C,F)
BrandToshiba
HK$3.942
毎管:50 個
單位
Through Hole Triac 1.3V 1 5 PDIP DC - 50 mA 5 kVrms - - - -
RS庫存編號 165-6302
製造零件編號VOS617A-3X001T
BrandVishay
HK$1.87
個 (在毎卷:3000)
單位
Surface Mount Phototransistor 1.5V 1 4 SSOP DC 3µs 50 mA 3.75 kVrms - 200% - 3µs
RS庫存編號 769-0269
製造零件編號TLP2355(E(O
BrandToshiba
HK$27.022
/個 (每包:5個)
單位
Surface Mount Photodetector 1.7V 1 5 SO DC 0.015µs 20 mA 3750 Vrms Yes - - 0.012µs
RS庫存編號 699-8168
製造零件編號CNY66
BrandVishay
HK$29.79
/個 (每包:2個)
單位
Through Hole Transistor 1.6V 1 4 PDIP DC 2.4µs 75 mA 13.9 kV - - - 2.7µs
RS庫存編號 708-5323
製造零件編號CNY17F-2
BrandVishay
HK$3.60
/個 (每包:10個)
單位
Through Hole Phototransistor 1.65V 1 6 PDIP DC 3µs 60 mA 5300 V ac - 125% 63 % 14µs
RS庫存編號 168-9684
製造零件編號MOC3020M
BrandLite-On
HK$4.63
毎管:65 個
單位
Through Hole Phototriac - 1 6 PDIP - - 50 mA 5 kVrms - - - -