Optocoupler ICs

An optocoupler IC, 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 IC 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 815-1030
製造零件編號6N136
BrandVishay
TWD42.30
/個 (每包:10個)
單位
Through Hole Transistor 1.9V 1 8 DIP DC - 25 mA 5300 Vrms - 35% - -
RS庫存編號 919-4312
製造零件編號6N136
BrandVishay
TWD42.30
毎管:50 個
單位
Through Hole Transistor 1.9V 1 8 DIP DC - 25 mA 5300 Vrms - 35% - -
RS庫存編號 100-0150
製造零件編號TLP127(U,F)
BrandToshiba
TWD49.40
/個 (每包:25個)
單位
Surface Mount Darlington 1.3V 1 4 SOP DC 40µs 50 mA 2500 V ac - 4000% 1000 % 15µs
RS庫存編號 885-1180
製造零件編號TLP2105(F)
BrandToshiba
TWD124.80
/個 (每包:5個)
單位
Surface Mount Photo IC 1.75V 1 8 SOIC - 75ns 20 mA 2500 Vrms Yes - - 75ns
RS庫存編號 453-7499
製造零件編號PS2501-1
TWD28.00
單位
Through Hole Transistor 1.4V 1 4 PDIP DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
RS庫存編號 170-2388
製造零件編號PC457L0NIP0F
BrandSharp
TWD34.30
個 (在毎卷:3000)
單位
Surface Mount Transistor 1.95V 1 5 Mini-Flat DC - 25 mA 3.75 kVrms - 50% 19 % -
RS庫存編號 166-2062
製造零件編號FOD3184
Brandonsemi
TWD47.30
個 (以毎袋:1000)
單位
Through Hole Buffer, Totem-Pole 1.8V 1 8 MDIP DC 38ns 25 mA 5 kVrms - - - 24ns
RS庫存編號 315-668
製造零件編號PC457L0NIP0F
BrandSharp
TWD92.20
/個 (每包:5個)
單位
Surface Mount Transistor 1.95V 1 5 Mini-Flat DC - 25 mA 3.75 kVrms - 50% 19 % -
RS庫存編號 808-8730
製造零件編號FOD3184
Brandonsemi
TWD99.00
/個 (每包:2個)
單位
Through Hole Buffer, Totem-Pole 1.8V 1 8 MDIP DC 38ns 25 mA 5000 Vrms - - - 24ns
RS庫存編號 168-6126
製造零件編號PS2502-4-A
TWD92.30
毎管:20 個
單位
Through Hole Darlington 1.4V 4 16 PDIP DC 100µs 80 mA 5 kVrms - 2000% 200 % 100µs
RS庫存編號 166-2382
製造零件編號HCPL2631SD
Brandonsemi
TWD51.50
個 (在毎卷:1000)
單位
Surface Mount Logic Gate 1.8V 2 8 MDIP DC 50µs 30 mA 2.5 kVrms Yes - - 12µs
RS庫存編號 807-6654
製造零件編號HCPL2631SD
Brandonsemi
TWD117.80
/個 (每包:4個)
單位
Surface Mount Logic Gate 1.8V 2 8 MDIP DC 50µs 30 mA 2500 Vrms Yes - - 12µs
RS庫存編號 632-4857
製造零件編號PS2502-4-A
TWD138.00
單位
Through Hole Darlington 1.4V 4 16 PDIP DC 100µs 80 mA 5000 Vrms - 2000% 200 % 100µs
RS庫存編號 171-8623
製造零件編號AQV251
BrandPanasonic
TWD198.00
單位
Through Hole MOSFET - - 6 DIP DC - 50 mA 1.5 kVrms - - - -
RS庫存編號 768-7862
製造零件編號ACPL-M72T-000E
BrandBroadcom
TWD186.00
單位
Surface Mount CMOS Detector IC 1.85V 1 5 SO DC 10ns 15 mA 4000 Vrms Yes - - 10ns
RS庫存編號 173-8175
製造零件編號AQV251
BrandPanasonic
TWD155.70
毎管:50 個
單位
Through Hole MOSFET - - 6 DIP DC - 50 mA 1.5 kVrms - - - -
RS庫存編號 818-8372
製造零件編號HCPL-7860-300E
BrandBroadcom
TWD260.00
單位
Surface Mount Transistor 0.2V 1 8 DIP DC - 15 mA 20 kV Yes - - -
RS庫存編號 885-1279
製造零件編號TLP250H(D4,F)
BrandToshiba
TWD70.20
/個 (每包:5個)
單位
Through Hole Photo IC 1.8V 1 8 DIP - 50ns 3 mA 2500 Vrms Yes - - 50ns
RS庫存編號 178-3244
製造零件編號ACPL-M72T-000E
BrandBroadcom
TWD107.10
毎管:100 個
單位
Surface Mount CMOS Detector IC 1.85V 1 5 SO DC 10ns 15 mA 4 kVrms Yes - - 10ns
RS庫存編號 178-3190
製造零件編號HCPL-7860-300E
BrandBroadcom
TWD223.70
毎管:50 個
單位
Surface Mount Transistor 0.2V 1 8 DIP DC - 15 mA 3.75 kVrms Yes - - -