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 671-1419
製造零件編號HCPL2630
HK$16.95
單位
Through Hole Logic Gate 1.8V 1 8 DIP DC 50ns 50 mA 2.5 kVrms Yes - - 12ns
RS庫存編號 165-2649
製造零件編號VOD213T
BrandVishay
HK$3.08
個 (在毎卷:2000)
單位
Surface Mount Phototransistor 1.55V 2 8 SOIC DC 5µs 30 mA 4 kVrms - - 100 % 4µs
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 699-8177
製造零件編號CNY74-2H
BrandVishay
HK$6.03
/個 (每包:10個)
單位
Through Hole Transistor 1.6V 2 8 PDIP DC 3µs 60 mA 5300 V ac - 600% 50 % 4.7µs
RS庫存編號 691-2205
製造零件編號LTV-827
BrandLite-On
HK$3.51
/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 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 168-7924
製造零件編號PC357N3J000F
BrandSharp
HK$2.13
個 (在毎卷:3000)
單位
- - 1.4V - - - - - 50 mA 3.75 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 691-2221
製造零件編號LTV-846
BrandLite-On
HK$6.93
/個 (每包:2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 186-022
製造零件編號TLP350(F)
BrandToshiba
HK$18.36
/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 864-9136
製造零件編號FOD3180TV
HK$17.54
/個 (每包:5個)
單位
Through Hole MOSFET Gate Driver 1.8V 1 8 DIP - 75ns 25 mA 5000 Vrms - - - 55ns
RS庫存編號 185-962
製造零件編號TLP190B(U,C,F)
BrandToshiba
HK$22.39
/個 (每包:2個)
單位
Surface Mount Diode 1.7V 1 4 SOP DC - 50 mA 2.5 kVrms Yes - 8888 -
RS庫存編號 885-1301
製造零件編號TLP5214(E(O
BrandToshiba
HK$43.36
/個 (每包:2個)
單位
Surface Mount Photo IC 1.8V 1 16 SOIC - 32ns 3.5 mA 5 kVrms - - - 18ns
RS庫存編號 173-8176
製造零件編號AQV252
BrandPanasonic
HK$40.39
毎管:50 個
單位
Through Hole MOSFET - - 6 DIP DC - 50 mA 1.5 kVrms - - - -
RS庫存編號 699-8473
製造零件編號VOD213T
BrandVishay
HK$6.84
/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 708-5405
製造零件編號ILQ621GB
BrandVishay
HK$26.18
/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 165-2584
製造零件編號SFH6156-1T
BrandVishay
HK$2.25
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$6.55
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 124-1738
製造零件編號HCPL2630
HK$14.47
毎管:50 個
單位
Through Hole Logic Gate 1.8V 1 8 DIP DC 50ns 50 mA 2500 V ac Yes - - 12ns
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