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PC817 Optocoupler IC Dip 4
The PC817 is one of the most widely used phototransistor optocouplers, designed to provide electrical isolation between low-voltage control circuits and high-voltage or noisy environments.
It consists of:
- An infrared LED on the input side
- A phototransistor on the output side
When the LED is energized, the phototransistor conducts, allowing signal transfer across an isolation barrier without any electrical connection.
The PC817 is commonly used in microcontroller, Arduino, SMPS, and industrial electronics for signal isolation, level shifting, and noise protection.
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Features:-
- 4pin DIP package
- Double transfer mold package (Ideal for Flow Soldering)
- High collector-emitter voltage (VCEO:80V)
- Current transfer ratio (CTR : MIN. 50% at IF=5 mA, VCE=5V)
- Several CTR ranks available
- High isolation voltage between input and output (Viso(rms) : 5.0 kV)
Specification:-
| Symbol | Parameter | Value | Unit |
| IF | Forward current | 50 | mA |
| PD | Power dissipation | 70 | mW |
| VR | Reverse Voltage | 6 | V |
| Tstg | Storage temperature range | ?55 to +125 | °C |
| TOPR | Operating Temperature | ?30 to +100 | °C |
| TSOL | Lead Solder Temperature | 260 for 10 sec | °C |
| IFM | Peak forward current | 1 | A |
| VCEO | Collector-emitter breakdown voltage | 80 | V |
| VECO | Emitter-collector voltage | 6 | V |
Applications
- Microcontroller I/O isolation
- SMPS feedback circuits
- Digital signal isolation
- AC mains detection & monitoring
- Relay, MOSFET, and transistor driver isolation
- Protection against high-voltage spikes and ground loops
- Industrial automation and sensor interfaces
- Motor control signal isolation
- Communication between circuits with different grounds
- Isolation in power supplies and battery chargers
*Product image for illustration purposes only, actual product may vary.
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SKU: CT8ALHG
JASVEER SINGH (Verified Customer) –
Order is complete, Accurate and on time. Packing is also good
JASVEER SINGH –
Satyanarain (Verified Customer) –
Satyanarain –