Overview
The PC817XI is a general-purpose photocoupler produced by Sharp Microelectronics. It consists of an infrared LED (IRED) optically coupled to a phototransistor, providing electrical isolation between the input and output circuits. This component is widely used in various applications requiring signal isolation and noise suppression.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | 4-pin DIP, SMT Gullwing | - |
| Input-Output Isolation Voltage | 5.0 kV | Vrms |
| Collector-Emitter Voltage (VCEO) | 80 V | V |
| Current Transfer Ratio (CTR) | 50% to 600% at IF=5 mA, VCE=5V | % |
| Forward Current (IF) | Up to 50 mA | mA |
| Reverse Voltage (VR) | 6 V | V |
| Rise Time/Fall Time | 18 μs / 18 μs | μs |
| Cut-off Frequency | 80 kHz | kHz |
| Operating Temperature | -30 to +100 °C | °C |
| Storage Temperature | -55 to +125 °C | °C |
Key Features
- High collector-emitter voltage (VCEO: 80V)
- High input-output isolation voltage (Viso(rms): 5.0 kV)
- Current transfer ratio (CTR) ranges from 50% to 600% at IF=5 mA, VCE=5V
- Available in various package types including 4-pin DIP and SMT Gullwing lead-form options
- Ideal for flow soldering due to double transfer mold package
- UL1577 recognized with double protection isolation (file No. E64380)
- Package resin with UL flammability grade (94V-0)
Applications
- Electrical isolation circuits
- Microcontroller I/O switching circuits
- Signal isolation and transmission between circuits of different potentials and impedances
- Noise suppression in switching circuits
- Isolation of digital from analog circuits
- AC/DC power control circuits
Q & A
- What is the PC817XI?
The PC817XI is a general-purpose photocoupler consisting of an infrared LED optically coupled to a phototransistor, providing electrical isolation between input and output circuits.
- What are the package options for the PC817XI?
The PC817XI is available in 4-pin DIP and SMT Gullwing lead-form packages.
- What is the input-output isolation voltage of the PC817XI?
The input-output isolation voltage is 5.0 kV (rms).
- What is the collector-emitter voltage (VCEO) of the PC817XI?
The collector-emitter voltage (VCEO) is 80 V.
- What is the current transfer ratio (CTR) of the PC817XI?
The CTR ranges from 50% to 600% at IF=5 mA, VCE=5V.
- What are the typical applications of the PC817XI?
Typical applications include electrical isolation circuits, microcontroller I/O switching circuits, signal isolation, noise suppression, and AC/DC power control.
- Is the PC817XI UL recognized?
Yes, the PC817XI is recognized by UL1577 with double protection isolation (file No. E64380).
- What is the operating temperature range of the PC817XI?
The operating temperature range is -30 to +100 °C.
- How do I connect the PC817XI in a circuit?
Connect the anode of the IR LED to the logic input, the cathode to ground, pull up the collector pin with a resistor, and connect the collector to the output of the desired logic circuit. The emitter should be grounded.
- What is the cut-off frequency of the PC817XI?
The cut-off frequency is 80 kHz.
- Is the PC817XI suitable for flow soldering?
Yes, it is suitable for flow soldering due to its double transfer mold package.
