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 693-6807
製造零件編號ACPL-247-500E
BrandBroadcom
HK$13.266
/個 (每包:5個)
單位
Surface Mount Transistor 1.4V 4 16 SOIC DC 2µs 50 mA 3 kVrms - 600% 100 % 3µs
RS庫存編號 284-1190
製造零件編號SFH6156-2T
BrandVishay
HK$7.53
單位
Surface Mount Transistor 1.25V 1 4 SMD DC 3µs 60 mA 5300 Vrms - 125% 63 % 14µs
RS庫存編號 903-4267
製造零件編號HCPL2531S
HK$10.602
/個 (每包:5個)
單位
Surface Mount Phototransistor 1.7V 2 8 DIP DC - 50 mA 2500 Vrms Yes 50% - -
RS庫存編號 671-1444
製造零件編號MOC3062M
HK$6.848
/個 (每包:5個)
單位
Through Hole Triac - 1 6 PDIP - - 60 mA 7.5 kVrms - - - -
RS庫存編號 171-8623
製造零件編號AQV251
BrandPanasonic
HK$50.97
單位
Through Hole MOSFET - - 6 DIP DC - 50 mA 1.5 kVrms - - - -
RS庫存編號 830-3458
製造零件編號PVI5050NSPBF
BrandInfineon
HK$32.71
/個 (每包:2個)
單位
Surface Mount MOSFET 8V 1 4 DIP DC 300µs 50 mA dc 4000 Vrms - - - 220µs
RS庫存編號 178-1663
製造零件編號HCPL-181-00CE
BrandBroadcom
HK$1.48
個 (在毎卷:3000)
單位
- - - - - - - - - - - - - -
RS庫存編號 547-3964
製造零件編號HCNW4506-000E
BrandBroadcom
HK$26.90
單位
Through Hole Inverter, Open-Collector 1.85V 1 8 PDIP-W DC - 25 mA 3.75 kVrms Yes 90% 44 % -
RS庫存編號 159-6455
製造零件編號SFH6156-2T
BrandVishay
HK$1.767
個 (在毎卷:1000)
單位
Surface Mount Transistor 1.25V 1 4 SMD DC 3µs 60 mA 5.3 kVrms - 125% 63 % 14µs
RS庫存編號 178-3135
製造零件編號ACPL-339J-000E
BrandBroadcom
HK$41.152
毎管:45 個
單位
Surface Mount IGBT Gate Drive, MOSFET 1.95V 1 16 SO DC 80ns 10 mA 5 kVrms Yes - - 45ns
RS庫存編號 839-9989
製造零件編號HCPL-181-00CE
BrandBroadcom
HK$1.892
/個 (每包:25個)
單位
Surface Mount Phototransistor 1.4V 1 4 SOIC DC 4µs 30 mA 3750 Vrms - 400% - 3µs
RS庫存編號 168-8528
製造零件編號4N25
BrandIsocom
HK$2.253
毎管:65 個
單位
Through Hole Transistor 1.5V 1 6 PDIP DC 2µs 60 mA 5.3 kVrms - - 20 % 2µs
RS庫存編號 818-8265
製造零件編號ACPL-339J-000E
BrandBroadcom
HK$41.15
單位
Surface Mount IGBT Gate Drive, MOSFET 1.95V 1 16 SO DC 80ns 10 mA 5000 Vrms Yes - - 45ns
RS庫存編號 169-8548
製造零件編號MOC3062M
HK$3.09
個 (以毎袋:1000)
單位
Through Hole Triac - 1 6 PDIP - - 60 mA 7.5 kVrms - - - -
RS庫存編號 178-0924
製造零件編號SFH615A-3
BrandVishay
HK$2.369
毎管:100 個
單位
Through Hole Phototransistor 1.65V 1 4 PDIP DC 3µs 60 mA 5.3 kVrms - 200% 100 % 14µs
RS庫存編號 691-2233
製造零件編號LTV-847
BrandLite-On
HK$6.585
/個 (每包:2個)
單位
Through Hole Transistor 1.4V 4 16 PDIP DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs
RS庫存編號 168-9679
製造零件編號LTV-847
BrandLite-On
HK$5.228
毎管:25 個
單位
Through Hole Transistor 1.4V 4 16 PDIP DC 4µs 50 mA 5 kVrms - 600% 50 % 3µs
RS庫存編號 625-7909
製造零件編號6N137(F)
BrandToshiba
HK$10.68
單位
Through Hole Transistor 1.75V 1 8 DIP DC 30ns 20 mA 2.5 kVrms Yes 1000% 1000 % 30ns
RS庫存編號 166-2236
製造零件編號HCPL2531S
HK$8.43
個 (以毎袋:1000)
單位
Surface Mount Phototransistor 1.8V 2 8 MDIP DC 1.5µs 25 mA 2.5 kVrms Yes 50% - 1.5µs
RS庫存編號 178-3125
製造零件編號HCNW4506-000E
BrandBroadcom
HK$18.869
毎管:42 個
單位
Through Hole Inverter, Open-Collector 1.85V 1 8 PDIP-W DC - 25 mA 3.75 kVrms Yes 90% 44 % -