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 453-7499
製造零件編號PS2501-1
HK$4.71
單位
Through Hole Transistor 1.4V 1 4 PDIP DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
RS庫存編號 772-5970
製造零件編號PS2506L-1-A
HK$5.545
/個 (每包:10個)
單位
Surface Mount Darlington 1.4V 1 4 DIP AC 100µs 1 A 5000 Vrms Yes 2000% - 100µs
RS庫存編號 772-5989
製造零件編號PS2561F-1Y-A
HK$2.924
/個 (每包:20個)
單位
Through Hole Transistor 1.4V 1 4 DIP DC 18µs 1 A 5000 Vrms Yes 600% - 18µs
RS庫存編號 772-5977
製造零件編號PS2561D-1Y-A/L
HK$1.756
/個 (每包:30個)
單位
Through Hole Transistor 1.4V 1 4 DIP DC 3µs 1 A 5000 Vrms Yes 400% - 5µs
全新
RS庫存編號 186-4310
製造零件編號PS9313L2-V-AX
HK$21.915
/個 (每包:2個)
單位
Surface Mount Photodiode 1.9V 1 6 DIP - 460ns 10 mA 5 kVrms - - 44% 240ns
全新
RS庫存編號 186-4313
製造零件編號PS2815-1-A
HK$6.035
/個 (每包:10個)
單位
Surface Mount Phototransistor 1.4V 1 4 SSOP DC 4µs ±5 mA 2.5 kVrms - 400% 100% 5µs
全新
RS庫存編號 186-4343
製造零件編號PS8302L-V-AX
HK$22.235
/個 (每包:2個)
單位
Surface Mount Photodiode 2V 1 6 DIP - 0.33µs 16 mA 5 kVrms - - 15% 0.3µs
全新
RS庫存編號 186-4317
製造零件編號PS9117A-AX
HK$17.152
/個 (每包:5個)
單位
Surface Mount Photodiode 1.8V 1 5 SOP - 20ns 16 mA 3.75 kVrms - - - 5ns
全新
RS庫存編號 186-4272
製造零件編號PS2811-1-V-A
HK$5.082
/個 (每包:10個)
單位
Surface Mount Phototransistor 1.4V 1 4 SSOP DC 4µs 5 mA 2.5 kVrms - 400% 100% 5µs
全新
RS庫存編號 186-4347
製造零件編號PS9121-AX
HK$22.55
/個 (每包:2個)
單位
Surface Mount Photodiode 1.8V 1 5 SOP - 20ns 10 mA 3.75 kVrms - - - 20ns
全新
RS庫存編號 186-4376
製造零件編號PS2702-1-A
HK$5.717
/個 (每包:10個)
單位
Surface Mount Darlington 1.4V 1 4 SOP DC 70µs 5 mA 3.75 kVrms - - 200% 60µs
全新
RS庫存編號 186-4320
製造零件編號PS8302L-AX
HK$21.915
/個 (每包:2個)
單位
Surface Mount Photodiode 2V 1 6 DIP - 0.33µs 16 mA 5 kVrms - - 15% 0.3µs
全新
RS庫存編號 189-0796
製造零件編號RV1S9060ACCSP-10YC#SC0
HK$10.737
Each (In a Tray of 20)
單位
Surface Mount CMOS 1.7V 1 5 - - 5ns 6 mA 5 kVrms Yes - - 5ns
RS庫存編號 453-7540
製造零件編號PS2501L-4
HK$25.62
單位
Surface Mount Transistor 1.4V 4 16 PDIP DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
全新
RS庫存編號 186-4275
製造零件編號PS9031-Y-AX
HK$14.612
/個 (每包:5個)
單位
Surface Mount MOSFET 1.75V 1 5 SOP - 40ns 10 mA 5 kVrms - - - 40ns
全新
RS庫存編號 186-4350
製造零件編號PS2801C-4-A
HK$14.294
/個 (每包:5個)
單位
Surface Mount Phototransistor 1.4V 1 16 SSOP DC 5µs 5 mA 2.5 kVrms - 400% 50% 7µs
全新
RS庫存編號 186-4324
製造零件編號PS9587L3-AX
HK$23.95
/個 (每包:2個)
單位
Surface Mount Photodiode 1.8V 1 8 DIP - 20ns 10 mA 5 kVrms - - - 10ns
全新
RS庫存編號 186-4379
製造零件編號PS2833-4-A
HK$34.748
/個 (每包:5個)
單位
Surface Mount Darlington 1.4V 1 16 SSOP DC 20µs 10 mA 2.5 kVrms - 4500% 400% 5µs
全新
RS庫存編號 189-1001
製造零件編號RV1S9160ACCSP-100C#SC0
HK$10.815
/個 (每包:10個)
單位
Surface Mount CMOS 1.7V 1 5 SOP - 5ns 6 mA 3.75 kVrms Yes - - 5ns
全新
RS庫存編號 186-4304
製造零件編號PS9587L2-V-AX
HK$24.775
/個 (每包:2個)
單位
Surface Mount Photodiode 1.8V 1 8 DIP - 20ns 10 mA 5 kVrms - - - 10ns