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
TWD27.00
單位
Through Hole Transistor 1.4V 1 4 PDIP DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
RS庫存編號 632-4857
製造零件編號PS2502-4-A
TWD114.00
單位
Through Hole Darlington 1.4V 4 16 PDIP DC 100µs 80 mA 5000 Vrms - 2000% 200 % 100µs
RS庫存編號 168-6126
製造零件編號PS2502-4-A
TWD99.70
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 453-7512
製造零件編號PS2501-4
TWD97.00
單位
Through Hole Transistor 1.4V 4 16 PDIP DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
RS庫存編號 772-5977
製造零件編號PS2561D-1Y-A/L
TWD20.10
/個 (每包:30個)
單位
Through Hole Transistor 1.4V 1 4 DIP DC 3µs 1 A 5000 Vrms Yes 400% - 5µs
RS庫存編號 187-665
製造零件編號PS9821-1-A
TWD86.00
單位
Surface Mount IC 1.8V 1 8 SOIC DC 20ns 12.5 mA 2.5 kVrms Yes - - 5ns
RS庫存編號 772-5989
製造零件編號PS2561F-1Y-A
TWD23.90
/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 186-4399
製造零件編號PS2703-1-A
TWD18.10
/個 (每包:10個)
單位
Surface Mount Phototransistor 1.4V 1 4 SOP DC 10µs 5 mA 3.75 kVrms - 400% 50% 10µs
RS庫存編號 187-520
製造零件編號PS9113-A
TWD192.00
單位
Surface Mount - 2.1V 1 5 SOP DC - - 3750 Vrms - 110% 44 % -
RS庫存編號 181-6769
製造零件編號PS8502L1-AX
TWD105.00
/個 (每包:5個)
單位
Surface Mount Photodiode 2.2V 1 8 DIP - 0.8µs 25 mA 5 kVrms - - 15% 0.8µs
RS庫存編號 186-4291
製造零件編號PS2733-1-V-A
TWD41.00
/個 (每包:5個)
單位
Surface Mount Darlington 1.4V 1 4 SOP DC 100µs 10 mA 2.5 kVrms - - 1500% 100µs
RS庫存編號 186-4333
製造零件編號PS2815-1-V-A
TWD27.90
/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
RS庫存編號 186-4343
製造零件編號PS8302L-V-AX
TWD97.50
/個 (每包:2個)
單位
Surface Mount Photodiode 2V 1 6 DIP - 0.33µs 16 mA 5 kVrms - - 15% 0.3µs
RS庫存編號 186-4418
製造零件編號PS2805C-1-V-A
TWD20.90
/個 (每包:10個)
單位
Surface Mount Phototransistor 1.4V 1 4 SSOP DC 5µs ±5 mA 2.5 kVrms - 400% 50% 7µs
RS庫存編號 186-4403
製造零件編號PS2861B-1Y-A
TWD32.00
/個 (每包:10個)
單位
Surface Mount Phototransistor 1.4V 1 4 SOP DC 4µs 5 mA 3.75 kVrms - 300% 50% 5µs
RS庫存編號 186-4294
製造零件編號PS2811-4-A
TWD82.20
/個 (每包:5個)
單位
Surface Mount Phototransistor 1.4V 1 16 SSOP DC 4µs 5 mA 2.5 kVrms - 400% 100% 5µs
RS庫存編號 186-4382
製造零件編號PS9821-2-AX
TWD124.00
/個 (每包:2個)
單位
Surface Mount Photodetector 1.8V 2 8 SSOP - 20ns 10 mA 2.5 kVrms - - - 5ns
全新
RS庫存編號 196-3300
製造零件編號RV1S9213ACCSP-10YV#SC0
TWD52.60
Each (On a Tape of 20)
單位
Surface Mount - 1.75V 1 5 - DC - 20 mA 5 kVrms - - - -
RS庫存編號 181-6753
製造零件編號PS8501-AX
TWD91.10
個 (在毎卷:50)
單位
Surface Mount Photodiode 2.2V 1 8 DIP - 0.8µs 25 mA 5 kVrms - - 15% 0.8µs
RS庫存編號 187-671
製造零件編號PS9821-2-A
TWD98.00
單位
Surface Mount IC 1.8V 2 8 SOIC DC 20ns 12.5 mA 2.5 kVrms Yes - - 5ns