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
全新
RS庫存編號 206-9759
製造零件編號TLP2745(E(T
BrandToshiba
HK$8.989
/個 (每包:10個)
單位
Surface Mount Transistor 1.65V 1 6 - DC - - - - - - -
RS庫存編號 919-0143
製造零件編號SFH617A-2
BrandVishay
HK$3.329
毎管:100 個
單位
Through Hole Transistor 1.65V 1 4 PDIP DC 3µs 60 mA 5300 V ac - 125% 63 % 14µs
全新
RS庫存編號 210-8036
製造零件編號140816141410
HK$2.268
毎管:100 個
單位
Through Hole - 1.4V 4 4 - DC - - - - - - -
RS庫存編號 796-5232
製造零件編號TLP2301
BrandToshiba
HK$4.171
/個 (每包:15個)
單位
Surface Mount Transistor 1.4V 1 4 SOIC DC - 50 mA 3750 Vrms - 600% - -
RS庫存編號 178-3154
製造零件編號HCPL-4503-000E
BrandBroadcom
HK$13.70
毎管:50 個
單位
Through Hole Transistor 1.7V 1 8 PDIP DC - 25 mA 3.75 kVrms Yes 50% 19 % -
RS庫存編號 173-6601
製造零件編號SFH601-1G
BrandIsocom
HK$1.769
毎管:65 個
單位
Through Hole NPN Phototransistor 1.65V 1 6 DIP - 2µs 60 mA 5300 (Minimum) Vrms - 80% 40% 11µs
RS庫存編號 165-2585
製造零件編號SFH6156-2X001T
BrandVishay
HK$2.898
個 (在毎卷:1000)
單位
Surface Mount Phototransistor 1.65V 1 4 SMD DC 3µs 60 mA 5.3 kVrms - 125% 63 % 14µs
RS庫存編號 174-4163
製造零件編號HCPL-315J-500E
BrandBroadcom
HK$59.72
/個 (每包:2個)
單位
Surface Mount IGBT, MOSFET 1.95V 2 8 SO - 0.1µs 16 mA 5000 Vrms Yes - - 0.1µs
RS庫存編號 178-7535
製造零件編號CNY17F1SR2M
HK$2.331
個 (在毎卷:1000)
單位
Surface Mount Phototransistor 1.65V 1 6 MDIP DC 4µs 60 mA 7.5 kVrms - - - 20µs
RS庫存編號 796-5248
製造零件編號TLP266J
BrandToshiba
HK$5.565
/個 (每包:10個)
單位
Surface Mount Phototriac - 1 4 SOIC - - - 3750 Vrms - - - -
RS庫存編號 178-7522
製造零件編號4N35SM
HK$1.88
個 (以毎袋:1000)
單位
Surface Mount Phototransistor 1.5V 1 6 DIP DC 2µs 3 A 7.5 kVrms Yes 100% - 2µs
RS庫存編號 161-1010
製造零件編號MOC3010
BrandIsocom
HK$20.776
毎管:65 個
單位
Through Hole Triac 1.5V 1 6 DIP AC - 50 mA 5300 (Minimum) Vrms - - - -
RS庫存編號 196-3309
製造零件編號RV1S2211ACCSP-10YV#SC0
HK$5.099
Each (On a Tape of 20)
單位
Surface Mount - 1.4V 1 4 - DC 4µs 30 mA 5 kVrms - 400% 100% 5µs
RS庫存編號 111-172
製造零件編號H11G2
BrandIsocom
HK$9.50
單位
Through Hole Darlington 1.5V 1 6 DIP DC 100µs 50 mA 5.3 kVrms - - 1000 % 20µs
RS庫存編號 186-7328
製造零件編號MOC3052SR2M
HK$3.318
個 (在毎卷:1000)
單位
Surface Mount Triac 1.5V 1 6 SMT - - 10 mA 4.17 kVrms - - - -
RS庫存編號 168-7792
製造零件編號TLP220A
BrandToshiba
HK$13.936
毎管:100 個
單位
Through Hole MOSFET 1.75V 1 4 DIP AC 0.5ms 500 mA 5 kVrms - - - 0.2ms
RS庫存編號 818-4541
製造零件編號VOS628A-2T
BrandVishay
HK$6.332
Each (On a Tape of 20)
單位
Surface Mount Phototransistor 1.5V 1 4 SSOP AC 5µs 50 mA 3750 Vrms - 125% - 7µs
RS庫存編號 453-7512
製造零件編號PS2501-4
HK$27.38
單位
Through Hole Transistor 1.4V 4 16 PDIP DC 3µs 80 mA 5000 Vrms - 600% 80 % 5µs
RS庫存編號 699-8212
製造零件編號SFH610A-3
BrandVishay
HK$7.705
/個 (每包:10個)
單位
Through Hole Transistor 1.65V 1 4 PDIP DC 3µs 60 mA 5300 V ac - 200% 100 % 14µs
RS庫存編號 180-7112
製造零件編號VO14642AABTR
BrandVishay
HK$29.106
/個 (每包:5個)
單位
Surface Mount MOSFET 1.5V 1 6 SMD - - 50 mA 5.3 kVrms - - - -