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 739-4983
製造零件編號FODM8061
TWD52
單位
Surface Mount Logic Gate 1.8V - 5 SO DC 20ns 50 mA 3750 V ac Yes - - 10ns
RS庫存編號 168-7927
製造零件編號PC357NJ0000F
BrandSharp
TWD4
個 (在毎卷:3000)
單位
- - 1.4V - - - - - 50 mA 3.75 kVrms - - - -
RS庫存編號 168-9692
製造零件編號MOC3063
BrandLite-On
TWD13
毎管:65 個
單位
Through Hole Triac - 1 6 PDIP - - 50 mA 5 kVrms - - - -
RS庫存編號 178-3205
製造零件編號HCPL-3120-000E
BrandBroadcom
TWD62
毎管:50 個
單位
- - - - - - - - - - - - - -
RS庫存編號 547-4197
製造零件編號HCPL-7800-000E
BrandBroadcom
TWD311
單位
Through Hole Transistor - 1 8 PDIP - 4.3µs - 3.75 kVrms Yes - - -
RS庫存編號 708-5364
製造零件編號IL300
BrandVishay
TWD118
/個 (每包:5個)
單位
Through Hole Photodiode 1.5V 1 8 PDIP DC 1.75µs 60 mA 5300 V ac - - - 1.75µs
RS庫存編號 922-5633
製造零件編號HCPL-3120-300E
BrandBroadcom
TWD64
毎管:50 個
單位
Surface Mount Transistor 1.8V 1 8 DIP DC 0.1µs 16 mA 3750 V ac Yes - - 0.1µs
RS庫存編號 903-4276
製造零件編號HCPL2611
TWD47
/個 (每包:5個)
單位
Through Hole Photodetector 1.8V 1 8 PDIP DC 50ns 50 mA 2.5 kVrms Yes - - 12ns
RS庫存編號 168-9681
製造零件編號MOC3020
BrandLite-On
TWD10
毎管:65 個
單位
Through Hole Triac - 1 6 PDIP - - 50 mA 5 kVrms - - - -
RS庫存編號 708-5405
製造零件編號ILQ621GB
BrandVishay
TWD95
/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 919-0092
製造零件編號IL300
BrandVishay
TWD69
毎管:50 個
單位
Through Hole Photodiode 1.5V 1 8 PDIP DC 1.75µs 60 mA 5300 V ac - - - 1.75µs
RS庫存編號 178-7558
製造零件編號MOCD217R2M
TWD11
個 (在毎卷:2500)
單位
Surface Mount Transistor 1.3V 2 8 SOIC DC 3.2µs 60 mA 2.5 kVrms - 130% 100 % 4.7µs
RS庫存編號 691-2306
製造零件編號MOC3063
BrandLite-On
TWD14
/個 (每包:5個)
單位
Through Hole Triac - 1 6 PDIP - - 50 mA 5 kVrms - - - -
RS庫存編號 450-812
製造零件編號HCPL-3120-300E
BrandBroadcom
TWD102
/個 (每包:2個)
單位
Surface Mount Transistor 1.8V 1 8 DIP DC 0.1µs 16 mA 3.75 kVrms Yes - - 0.1µs
RS庫存編號 903-4232
製造零件編號FODM8061R2
TWD29
/個 (每包:10個)
單位
Surface Mount Schottky-Clamped Transistor 1.8V 1 5 Mini-Flat DC 20ns 50 mA 3750 V ac Yes - - 10ns
RS庫存編號 178-3183
製造零件編號HCPL-3150-300E
BrandBroadcom
TWD53
毎管:50 個
單位
- - - - - - - - - - - - - -
RS庫存編號 761-3640
製造零件編號HCPL2731
TWD68
/個 (每包:2個)
單位
Through Hole Transistor 1.75V 2 8 MDIP DC 22µs 20 mA 2500 V ac Yes 2000% - 3µs
RS庫存編號 178-4821
製造零件編號MOCD217M
TWD16
毎管:100 個
單位
Surface Mount Phototransistor 1.3V 2 8 SOIC DC 3.2µs 200 mA 2.5 kVrms Yes 100% - 4.7µs
RS庫存編號 826-4684
製造零件編號PC357NJ0000F
BrandSharp
TWD11
/個 (每包:40個)
單位
- - 1.4V - - - - - 50 mA 3.75 kV - - - -
RS庫存編號 922-5788
製造零件編號HCPL-2611-000E
BrandBroadcom
TWD63
毎管:50 個
單位
Through Hole Transistor 1.75V 1 8 DIP DC 24ns 20 mA 3750 V ac Yes - - 10ns