The LTV-817S-TA1-C from Lite-On Technology is a reliable photocoupler (optocoupler) featuring a gallium arsenide infrared LED input and a phototransistor output stage. It is designed to provide electrical isolation and signal transmission between different voltage domains in electronic systems.
The device provides a high isolation voltage rating of up to 5000Vrms, helping protect sensitive circuits from electrical noise, voltage surges, and ground potential differences. The phototransistor output configuration offers stable switching performance for various low-speed signal isolation applications.
LTV-817S-TA1-C features a current transfer ratio (CTR) range of 50% to 600%, allowing flexible circuit design for different input and output requirements. It supports reliable operation with low input current drive, making it suitable for power supply feedback circuits and embedded control systems.
The device is supplied in a compact 4-pin surface-mount package, enabling automated PCB assembly and space-saving designs. Typical applications include switching power supplies, industrial control equipment, PLC interfaces, communication isolation, and digital signal transmission systems.
Key Features
- Photocoupler / optocoupler device
- Input: GaAs infrared LED
- Output: Phototransistor
- Isolation voltage: 5000Vrms
- Current transfer ratio (CTR): 50%–600%
- Low input drive current
- Electrical noise isolation
- Compact SMD package
- Package: 4-pin SMD
- Surface mount technology
- Suitable for signal and power isolation
- RoHS compliant
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