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 145-5525
製造零件編號4N35M
HK$1.87
個 (以毎袋:1000)
單位
Through Hole Transistor 1.5V 1 6 PDIP DC - 60 mA 7.5 kVrms - - 100 % -
RS庫存編號 671-1352
製造零件編號4N35M
HK$5.848
/個 (每包:5個)
單位
Through Hole Transistor 1.5V 1 6 PDIP DC - 60 mA 7.5 kVrms - - 100 % -
RS庫存編號 169-8557
製造零件編號FOD817A300
HK$1.019
個 (以毎袋:2000)
單位
Through Hole Transistor 70V 1 4 DIP-B DC 18µs 50 mA 5 kVrms - 160% - 18µs
RS庫存編號 739-0265
製造零件編號FOD817A300
HK$3.308
/個 (每包:5個)
單位
Through Hole Transistor 70V 1 4 DIP-B DC 18µs 50 mA 5000 Vrms - 160% - 18µs
RS庫存編號 169-8548
製造零件編號MOC3062M
HK$3.87
個 (以毎袋:1000)
單位
Through Hole Triac - 1 6 PDIP - - 60 mA 7.5 kVrms - - - -
RS庫存編號 671-1444
製造零件編號MOC3062M
HK$6.848
/個 (每包:5個)
單位
Through Hole Triac - 1 6 PDIP - - 60 mA 7.5 kVrms - - - -
RS庫存編號 166-2444
製造零件編號MOC3083M
HK$3.478
個 (以毎袋:1000)
單位
Through Hole Triac 1.5V 1 6 DIP DC - 60 mA 7.5 kVrms - - - -
RS庫存編號 903-4267
製造零件編號HCPL2531S
HK$10.602
/個 (每包:5個)
單位
Surface Mount Phototransistor 1.7V 2 8 DIP DC - 50 mA 2500 Vrms Yes 50% - -
RS庫存編號 166-2381
製造零件編號HCPL2531SD
HK$9.645
個 (在毎卷:1000)
單位
Surface Mount Phototransistor 1.8V 2 8 MDIP DC 1.5µs 25 mA 2.5 kVrms Yes 50% - 1.5µs
RS庫存編號 739-0256
製造零件編號MOC3083M
HK$8.044
/個 (每包:5個)
單位
Through Hole Triac 1.5V 1 6 DIP DC - 60 mA 7500 V ac - - - -
RS庫存編號 166-2236
製造零件編號HCPL2531S
HK$10.136
個 (以毎袋:1000)
單位
Surface Mount Phototransistor 1.8V 2 8 MDIP DC 1.5µs 25 mA 2.5 kVrms Yes 50% - 1.5µs
RS庫存編號 807-6651
製造零件編號HCPL2531SD
HK$11.796
/個 (每包:5個)
單位
Surface Mount Phototransistor 1.8V 2 8 MDIP DC 1.5µs 25 mA 2500 V ac Yes 50% - 1.5µs
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 166-2308
製造零件編號FOD3180TV
HK$12.631
個 (以毎袋:1000)
單位
Through Hole MOSFET Gate Driver 1.8V 1 8 DIP - 75ns 25 mA 5 kVrms - - - 55ns
RS庫存編號 864-9136
製造零件編號FOD3180TV
HK$14.386
/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 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 671-1419
製造零件編號HCPL2630
HK$22.80
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 124-1738
製造零件編號HCPL2630
HK$15.973
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 805-1236
製造零件編號4N35VM
HK$2.772
/個 (每包:25個)
單位
Through Hole Transistor 1.5V 1 6 DIP DC 2µs 60 mA 7500 Vrms Yes 100% - 2µs
RS庫存編號 739-4983
製造零件編號FODM8061
HK$16.87
單位
Surface Mount Logic Gate 1.8V - 5 SO DC 20ns 50 mA 3750 V ac Yes - - 10ns