Overview
The PC817X series, produced by Sharp Microelectronics, is a line of optocouplers or photocouplers that integrate an infrared emitting diode (IRED) optically coupled to a phototransistor. These devices are designed to provide electrical isolation between input and output circuits, making them ideal for applications requiring signal transmission across different voltage levels or noise-prone environments.
The PC817X series is available in various packages, including 4-pin DIP (Dual In-Line Package) with wide lead spacing and SMT (Surface Mount Technology) gullwing lead form options. This versatility allows for easy integration into a wide range of electronic systems.
Key Specifications
| Parameter | Symbol | Rating/Value | Unit |
|---|---|---|---|
| Input Forward Current | IF | 50 mA | - |
| Peak Forward Current | IFM | 1 A | - |
| Reverse Voltage | VR | 6 V | - |
| Power Dissipation | P | 70 mW | - |
| Collector-Emitter Voltage | VCEO | 80 V | - |
| Emitter-Collector Voltage | VECO | 6 V | - |
| Collector Current | IC | 50 mA | - |
| Collector Power Dissipation | Pc | 150 mW | - |
| Total Power Dissipation | Ptot | 200 mW | - |
| Isolation Voltage (rms) | Viso | 5 kV | - |
| Operating Temperature | Topr | -30 to +100 ℃ | - |
| Storage Temperature | Tstg | -55 to +125 ℃ | - |
| Soldering Temperature | Tsol | 270 ℃ | - |
| Current Transfer Ratio (CTR) | - | 50% to 600% @ IF=5mA, VCE=5V, Ta=25℃ | - |
| Forward Voltage | Vf | 1.2 V (typ) | - |
| Collector-Emitter Saturation Voltage | Vce (sat) | 0.1 to 0.2 V | - |
| Rise/Fall Time | tr/tf | 4 µs / 3 µs (typ) | - |
Key Features
- Electrical Isolation: Input-output isolation voltage of 5 kV (rms) ensures high electrical isolation between the input and output circuits.
- Current Transfer Ratio (CTR): CTR ranges from 50% to 600% at an input current of 5 mA, providing a wide range of sensitivity options.
- Package Options: Available in 4-pin DIP with wide lead spacing and SMT gullwing lead form options, facilitating various mounting requirements.
- Operating Temperature: Operates within a temperature range of -30 to +100 ℃, making it suitable for a variety of environmental conditions.
- Soldering Compatibility: Designed for flow soldering and hand soldering with specific guidelines to ensure reliability.
- Low Power Consumption: Total power dissipation of 200 mW and collector power dissipation of 150 mW, contributing to energy-efficient designs.
- Fast Switching Times: Rise and fall times of 4 µs and 3 µs respectively, enabling fast signal transmission.
Applications
- Industrial Control Systems: Used in motor control, power supplies, and other industrial automation applications where electrical isolation is crucial.
- Medical Devices: Suitable for medical equipment where high isolation and reliability are necessary.
- Telecommunications: Employed in telecommunications systems for signal isolation and noise reduction.
- Automotive Systems: Used in automotive electronics for isolating high-voltage and low-voltage circuits.
- Consumer Electronics: Found in various consumer electronics such as printers, scanners, and other devices requiring signal isolation.
Q & A
- What is the PC817X series used for?
The PC817X series is used for electrical signal transmission across isolated circuits, providing high electrical isolation and noise immunity.
- What are the package options available for the PC817X series?
The PC817X series is available in 4-pin DIP with wide lead spacing and SMT gullwing lead form options.
- What is the maximum collector-emitter voltage for the PC817X series?
The maximum collector-emitter voltage is 80 V.
- What is the current transfer ratio (CTR) range for the PC817X series?
The CTR ranges from 50% to 600% at an input current of 5 mA.
- What is the operating temperature range for the PC817X series?
The operating temperature range is -30 to +100 ℃.
- Can the PC817X series be used for flow soldering?
Yes, the PC817X series is designed to withstand flow soldering under specific guidelines.
- What is the maximum forward current for the PC817X series?
The maximum forward current is 50 mA.
- What is the isolation voltage for the PC817X series?
The isolation voltage is 5 kV (rms).
- What are the typical rise and fall times for the PC817X series?
The typical rise and fall times are 4 µs and 3 µs respectively.
- What are some common applications of the PC817X series?
Common applications include industrial control systems, medical devices, telecommunications, automotive systems, and consumer electronics.
