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 110-185
製造零件編號SFH615A-2
BrandVishay
HK$5.82
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 919-0127
製造零件編號ILQ621GB
BrandVishay
HK$13.898
毎管:25 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 185-962
製造零件編號TLP190B(U,C,F)
BrandToshiba
HK$15.23
/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 166-1895
製造零件編號FOD817B3SD
HK$1.145
個 (在毎卷:1000)
單位
Surface Mount Phototransistor 1.4V 1 4 MDIP DC 18µs 50 mA 5 kVrms - 260% - 18µs
RS庫存編號 145-1761
製造零件編號CNY74-2H
BrandVishay
HK$3.767
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 885-0967
製造零件編號TLP291(V4GBTP,SE(T
BrandToshiba
HK$1.556
/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 168-7832
製造零件編號TLP785F(GR-LF7,F(C
BrandToshiba
HK$0.628
毎管:100 個
單位
Surface Mount Transistor 1.3V 1 4 DIP DC 2µs 10 mA 5 kVrms - 300% - 3µs
RS庫存編號 168-9673
製造零件編號LTV-827
BrandLite-On
HK$2.532
毎管:50 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 186-022
製造零件編號TLP350(F)
BrandToshiba
HK$17.135
/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 919-0786
製造零件編號VO2630-X007T
BrandVishay
HK$9.659
個 (在毎卷:1000)
單位
Surface Mount Transistor 1.7V 2 8 PDIP DC 0.023µs - 5300 V ac Yes - - 0.007µs
RS庫存編號 708-5405
製造零件編號ILQ621GB
BrandVishay
HK$25.108
/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 145-1578
製造零件編號SFH615A-2
BrandVishay
HK$1.666
毎管:100 個
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 761-3521
製造零件編號FOD817B3SD
HK$1.241
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 885-1121
製造零件編號TLP292(V4-BLTL,E(T
BrandToshiba
HK$1.702
/個 (每包:25個)
單位
Surface Mount Phototransistor 1.4V 1 4 SO4 AC, DC 2µs ±50 mA 3750 Vrms - 600% - 3µs
RS庫存編號 699-8219
製造零件編號SFH6156-1T
BrandVishay
HK$2.416
/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 826-4669
製造零件編號PC357N3J000F
BrandSharp
HK$3.102
/個 (每包:40個)
單位
- - 1.4V - - - - - 50 mA 3.75 kV - - - -
RS庫存編號 796-5317
製造零件編號TLP785F(GR-LF7,F(C
BrandToshiba
HK$1.087
/個 (每包:25個)
單位
Surface Mount Transistor 1.3V 1 4 DIP DC 2µs 10 mA 5000 Vrms - 300% - 3µs
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 710-3989
製造零件編號VO2630-X007T
BrandVishay
HK$10.992
/個 (每包:5個)
單位
Surface Mount Transistor 1.7V 2 8 SMD DC 0.023µs - 5.3 kVrms Yes - - 0.007µs
RS庫存編號 146-1427
製造零件編號VOM160NT
BrandVishay
HK$2.36
個 (在毎卷:2000)
單位
Surface Mount Phototriac 1.5V 1 4 SOP DC - 60 mA 3.75 kVrms - - - -