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 919-4312
製造零件編號6N136
BrandVishay
TWD22
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 815-1030
製造零件編號6N136
BrandVishay
TWD31
/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 100-0151
製造零件編號TLP250(F)
BrandToshiba
TWD57
/個 (每包:5個)
單位
Through Hole Transistor 1.3V 1 8 PDIP DC 2µs 300 mA 2500 V ac Yes - - -
RS庫存編號 100-0150
製造零件編號TLP127(U,F)
BrandToshiba
TWD26
/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
TWD107
/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
TWD27
單位
Through Hole Transistor 1.4V 1 4 PDIP DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
RS庫存編號 315-668
製造零件編號PC457L0NIP0F
BrandSharp
TWD77
/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
TWD70
/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 170-2388
製造零件編號PC457L0NIP0F
BrandSharp
TWD29
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
TWD35
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 807-6654
製造零件編號HCPL2631SD
TWD51
/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 166-2382
製造零件編號HCPL2631SD
TWD38
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 168-6126
製造零件編號PS2502-4-A
TWD87
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 632-4857
製造零件編號PS2502-4-A
TWD114
單位
Through Hole Darlington 1.4V 4 16 PDIP DC 100µs 80 mA 5000 Vrms - 2000% 200 % 100µs
RS庫存編號 885-1279
製造零件編號TLP250H(D4,F)
BrandToshiba
TWD55
/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 768-7862
製造零件編號ACPL-M72T-000E
BrandBroadcom
TWD82
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 171-8623
製造零件編號AQV251
BrandPanasonic
TWD183
單位
Through Hole MOSFET - - 6 DIP DC - 50 mA 1.5 kVrms - - - -
RS庫存編號 178-3190
製造零件編號HCPL-7860-300E
BrandBroadcom
TWD168
毎管:50 個
單位
Surface Mount Transistor 0.2V 1 8 DIP DC - 15 mA 3.75 kVrms Yes - - -
RS庫存編號 818-8372
製造零件編號HCPL-7860-300E
BrandBroadcom
TWD194
單位
Surface Mount Transistor 0.2V 1 8 DIP DC - 15 mA 20 kV Yes - - -
RS庫存編號 178-3244
製造零件編號ACPL-M72T-000E
BrandBroadcom
TWD92
毎管:100 個
單位
Surface Mount CMOS Detector IC 1.85V 1 5 SO DC 10ns 15 mA 4 kVrms Yes - - 10ns