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17 pcs
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17 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The Vishay Semiconductors 4N27 is an industry-standard single-channel optocoupler featuring a phototransistor output. It consists of a gallium arsenide infrared LED coupled with a silicon NPN phototransistor.
Key electrical specifications include an isolation test voltage of 5000 VRMS, a maximum forward current of 60 mA, and a collector emitter breakdown voltage of 70 V. The device also offers a typical Current Transfer Ratio (CTR) of greater than 10% for the 4N27 variant. Input power dissipation is rated at 100 mW, while output power dissipation is 150 mW.
This optocoupler is designed for applications such as AC mains detection, switch mode power supply feedback, telephone ring detection, and logic ground isolation. Its input-output coupling capacitance is less than 0.5 pF, providing good noise rejection.
The 4N27 is supplied in a standard 6-pin dual-in-line package (DIP) suitable for through-hole mounting.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The isolation test voltage is 5000 VRMS.
The typical Current Transfer Ratio (CTR) for the 4N27 is greater than 10%.
The 4N27 is supplied in a 6-pin DIP package.
Main applications include AC mains detection, switch mode power supply feedback, telephone ring detection, and logic ground isolation.