Overview
The PC81720NSZ is an optocoupler produced by Sharp Microelectronics, although it is currently obsolete and no longer manufactured. This component belongs to the PC817XxNSZ1B series, which features an infrared LED (IRED) optically coupled to a phototransistor. It is designed to provide high isolation between the input and output circuits, making it suitable for various applications requiring electrical isolation.
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 |
| Isolation Voltage (rms) | Viso | 5 kV | |
| Operating Temperature | Topr | -30 to +100 | °C |
| Storage Temperature | Tstg | -55 to +125 | °C |
Key Features
- High isolation voltage of 5 kV (rms) between input and output circuits.
- Collector-emitter voltage of 80 V and emitter-collector voltage of 6 V.
- Current Transfer Ratio (CTR) ranges from 50% to 400% at IF = 5 mA, VCE = 5 V, and Ta = 25°C.
- Available in through-hole (DIP) and surface-mount (SMD) packages.
- Low power dissipation with a total power dissipation of 200 mW.
- Operating temperature range from -30°C to +100°C and storage temperature range from -55°C to +125°C.
Applications
- Industrial control systems requiring electrical isolation.
- Medical devices where high isolation is necessary for safety.
- Automotive systems needing reliable and isolated signal transmission.
- Telecommunication equipment requiring high isolation between circuits.
- Power supplies and DC-DC converters where isolation is critical.
Q & A
- What is the PC81720NSZ?
The PC81720NSZ is an optocoupler from Sharp Microelectronics, part of the PC817XxNSZ1B series, featuring an IRED optically coupled to a phototransistor.
- What is the isolation voltage of the PC81720NSZ?
The isolation voltage is 5 kV (rms).
- What are the operating and storage temperature ranges?
The operating temperature range is -30°C to +100°C, and the storage temperature range is -55°C to +125°C.
- What is the Current Transfer Ratio (CTR) of the PC81720NSZ?
The CTR ranges from 50% to 400% at IF = 5 mA, VCE = 5 V, and Ta = 25°C.
- Is the PC81720NSZ still in production?
No, the PC81720NSZ is obsolete and no longer manufactured.
- What are some common applications for the PC81720NSZ?
Common applications include industrial control systems, medical devices, automotive systems, telecommunication equipment, and power supplies.
- What types of packages are available for the PC817XxNSZ1B series?
The series is available in through-hole (DIP) and surface-mount (SMD) packages.
- What is the collector-emitter voltage of the PC81720NSZ?
The collector-emitter voltage is 80 V.
- What is the total power dissipation of the PC81720NSZ?
The total power dissipation is 200 mW.
- How can I obtain the latest device specification sheets for the PC81720NSZ?
Contact Sharp Microelectronics to obtain the latest device specification sheets before using any Sharp device.
