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 803-0826
製造零件編號HCPL-4506-300E
BrandBroadcom
HK$21.856
/個 (每包:5個)
單位
Surface Mount Transistor 1.8V 1 8 DIP DC 5ns 25 mA 3750 Vrms Yes 90% - 5ns
RS庫存編號 180-8821
製造零件編號IL300-F-X007
BrandVishay
HK$100.65
單位
- - - - - - - - - - - - - -
RS庫存編號 174-3657
製造零件編號HCPL-063A-500E
BrandBroadcom
HK$26.708
個 (在毎卷:1500)
單位
Surface Mount Transistor 1.6V 1 8 SO - 42ns 10 mA 3750 Vrms Yes - - 12ns
RS庫存編號 808-8786
製造零件編號FOD8173S
HK$2.905
/個 (每包:25個)
單位
Surface Mount Phototransistor 1.4V 1 4 MDIP DC 18µs 50 mA 5000 Vrms - 600% - 18µs
RS庫存編號 710-4881
製造零件編號ILD217T
BrandVishay
HK$11.278
/個 (每包:5個)
單位
Surface Mount Transistor 1.55V 2 8 SOIC DC - 30 mA 4000 V ac - 120% 100 % -
RS庫存編號 542-6047
製造零件編號TLP227G(F)
BrandToshiba
HK$22.138
/個 (每包:5個)
單位
Through Hole MOSFET - 1 4 PDIP DC - 50 mA 2.5 kVrms - - - -
RS庫存編號 2508662498
製造零件編號NSL-32SR3
HK$24.30
單位
- - - - - - - - - - - - - -
RS庫存編號 2508355008
製造零件編號AQV258A
BrandPanasonic
HK$68.74
單位
- - - - - - - - - - - - - -
RS庫存編號 2509652742
製造零件編號AQV212
BrandPanasonic
HK$51.09
單位
- - - - - - - - - - - - - -
RS庫存編號 2508958569
製造零件編號NTE3049
HK$48.02
單位
- - - - - - - - - - - - - -
RS庫存編號 2508643015
製造零件編號OAC5
BrandOpto 22
HK$232.12
單位
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