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庫存編號 145-1761
製造零件編號CNY74-2H
BrandVishay
HK$5.902
毎管:50 個
單位
Through Hole Transistor 1.6V 2 8 PDIP DC 3µs 60 mA 5.3 kVrms - 600% 50 % 4.7µs
RS庫存編號 171-8639
製造零件編號AQV252
BrandPanasonic
HK$44.16
單位
Through Hole MOSFET - - 6 DIP DC - 50 mA 1.5 kVrms - - - -
RS庫存編號 760-3221
製造零件編號TLP350(TP5,F)
BrandToshiba
HK$28.26
單位
Surface Mount IGBT Gate Drive, MOSFET 1.8V 2 8 PDIP DC 15ns 20 mA 3750 V ac - - - 8ns
RS庫存編號 168-9677
製造零件編號LTV-846
BrandLite-On
HK$5.73
毎管:25 個
單位
Through Hole Transistor 1.4V 4 16 PDIP DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs
RS庫存編號 761-3521
製造零件編號FOD817B3SD
HK$3.049
Each (On a Tape of 25)
單位
Surface Mount Phototransistor 1.4V 1 4 DIP DC 4µs 50 mA 5000 V ac - 260% - 3µs
RS庫存編號 691-2205
製造零件編號LTV-827
BrandLite-On
HK$3.616
/個 (每包:5個)
單位
Through Hole Transistor 1.4V 2 8 PDIP DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs
RS庫存編號 885-0967
製造零件編號TLP291(V4GBTP,SE(T
BrandToshiba
HK$1.747
/個 (每包:50個)
單位
Surface Mount Phototransistor 1.4V 1 4 SO4 DC 4µs 50 mA 3750 Vrms - 400% - 7µs
RS庫存編號 699-8464
製造零件編號VOD205T
BrandVishay
HK$7.159
/個 (每包:10個)
單位
Surface Mount Transistor 1.55V 2 8 SOIC DC 5µs 30 mA 4000 V ac - 80% 40 % 4µs
RS庫存編號 547-4052
製造零件編號HCPL-0631-000E
BrandBroadcom
HK$37.10
單位
Surface Mount Transistor 1.75V 2 8 SOIC DC 24ns 20 mA 3.75 kVrms Yes - - 10ns
RS庫存編號 699-8473
製造零件編號VOD213T
BrandVishay
HK$7.735
/個 (每包:10個)
單位
Surface Mount Phototransistor 1.55V 2 8 SOIC DC 5µs 30 mA 4000 V ac - - 100 % 4µs
RS庫存編號 145-2644
製造零件編號SFH615A-4X018T
BrandVishay
HK$3.615
個 (在毎卷:1000)
單位
Surface Mount Phototransistor 1.65V 1 4 PDIP DC 4µs 60 mA 5.3 kVrms - 320% 160 % 15µs
RS庫存編號 165-2584
製造零件編號SFH6156-1T
BrandVishay
HK$2.388
個 (在毎卷:1000)
單位
Surface Mount Phototransistor 1.65V 1 4 SMD DC 2µs 60 mA 5.3 kVrms - 80% 40 % 11µs
RS庫存編號 773-0212
製造零件編號VOM160NT
BrandVishay
HK$7.097
Each (On a Tape of 10)
單位
Surface Mount Phototriac 1.5V 1 4 SOP DC - 60 mA 3750 Vrms - - - -
RS庫存編號 165-2647
製造零件編號VOD205T
BrandVishay
HK$2.853
個 (在毎卷:2000)
單位
Surface Mount Transistor 1.55V 2 8 SOIC DC 5µs 30 mA 4 kVrms - 80% 40 % 4µs
RS庫存編號 699-8219
製造零件編號SFH6156-1T
BrandVishay
HK$6.345
/個 (每包:10個)
單位
Surface Mount Phototransistor 1.65V 1 4 SMD DC 2µs 60 mA 5300 V ac - 80% 40 % 11µs
RS庫存編號 710-5064
製造零件編號SFH615A-4X018T
BrandVishay
HK$6.85
/個 (每包:10個)
單位
Surface Mount Phototransistor 1.65V 1 4 PDIP DC 4µs 60 mA 5300 V ac - 320% 160 % 15µs
RS庫存編號 186-022
製造零件編號TLP350(F)
BrandToshiba
HK$17.015
/個 (每包:2個)
單位
Through Hole IGBT Gate Drive, MOSFET - 1 8 PDIP DC - - 3.75 kVrms Yes - - -
RS庫存編號 708-5405
製造零件編號ILQ621GB
BrandVishay
HK$26.708
/個 (每包:5個)
單位
Through Hole Transistor 1.3V 4 16 PDIP DC 2.8µs 60 mA 5300 V ac - 600% 100 % 11µs
RS庫存編號 110-185
製造零件編號SFH615A-2
BrandVishay
HK$6.87
單位
Through Hole Transistor 1.65V 1 4 PDIP DC 3µs 60 mA 5.3 kVrms - 125% 63 % 14µs
RS庫存編號 165-2649
製造零件編號VOD213T
BrandVishay
HK$3.26
個 (在毎卷:2000)
單位
Surface Mount Phototransistor 1.55V 2 8 SOIC DC 5µs 30 mA 4 kVrms - - 100 % 4µs