Overview
The PC817X series, including the PC817X4, is a line of optocouplers produced by Sharp Microelectronics. These components are designed to provide electrical isolation between input and output circuits, making them ideal for applications requiring signal transmission between different potential and impedance levels. The PC817X series includes an infrared LED (IRED) optically coupled to a phototransistor, packaged in a 4-pin DIP or SMT gullwing lead-form option.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 1 | - |
| Voltage - Isolation | 5000 | Vrms |
| Current Transfer Ratio (Min) | 50% @ 5mA | - |
| Current Transfer Ratio (Max) | 600% @ 5mA | - |
| Rise / Fall Time (Typ) | 4µs, 3µs | - |
| Input Type | DC | - |
| Output Type | Transistor | - |
| Voltage - Output (Max) | 80 | V |
| Current - Output / Channel | 50 | mA |
| Voltage - Forward (Vf) (Typ) | 1.2 | V |
| Current - DC Forward (If) (Max) | 50 | mA |
| Vce Saturation (Max) | 200mV | - |
| Operating Temperature | -30°C ~ 100°C | - |
| Mounting Type | Through Hole | - |
| Package / Case | 4-DIP (0.300", 7.62mm) | - |
Key Features
- High isolation voltage between input and output: 5.0 kV (rms)
- Collector-emitter voltage: 80V
- Current transfer ratio (CTR): 50% to 600% at input current of 5mA
- Available in 4-pin DIP and SMT gullwing lead-form options
- UL1577 recognized (Double protection isolation)
- Package resin with UL flammability grade (94V-0)
Applications
- I/O isolation for Micro Controller Units (MCUs)
- Noise suppression in switching circuits
- Signal transmission between circuits of different potentials and impedances
- General-purpose photocoupler applications
Q & A
- What is the PC817X series used for?
The PC817X series is used for providing electrical isolation between input and output circuits, making it suitable for applications such as I/O isolation for MCUs, noise suppression in switching circuits, and signal transmission between different potential and impedance levels.
- What is the isolation voltage of the PC817X series?
The isolation voltage of the PC817X series is 5.0 kV (rms).
- What is the collector-emitter voltage of the PC817X series?
The collector-emitter voltage of the PC817X series is 80V.
- What is the current transfer ratio (CTR) of the PC817X series?
The CTR of the PC817X series ranges from 50% to 600% at an input current of 5mA.
- In what package types is the PC817X series available?
The PC817X series is available in 4-pin DIP and SMT gullwing lead-form options.
- Is the PC817X series UL recognized?
Yes, the PC817X series is recognized by UL1577 (Double protection isolation).
- What is the operating temperature range of the PC817X series?
The operating temperature range of the PC817X series is -30°C to 100°C.
- What is the maximum output current per channel of the PC817X series?
The maximum output current per channel of the PC817X series is 50mA.
- What is the typical forward voltage (Vf) of the PC817X series?
The typical forward voltage (Vf) of the PC817X series is 1.2V.
- Is the PC817X4 still in production?
No, the PC817X4 is obsolete and no longer manufactured.
