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Product Detailed Parameters
- Description：OPTOISOLATOR 5KV 1CH TRANS 4-DIP
- Series：-
- Mfr：Sharp Microelectronics
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：100% @ 5mA
- Current Transfer Ratio (Max)：200% @ 5mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：4µs, 3µs
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.2V
- 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)
- Supplier Device Package：4-DIP
- Grade：-
- Qualification：-
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Overview
The PC123YS is a single-channel transistor output optocoupler manufactured by Sharp Microelectronics. It features an NPN phototransistor output with a maximum collector-emitter voltage of 70V and a saturation voltage of 200mV. The device provides high current transfer ratios ranging from 50% to 400%. Electrical isolation is rated at 5000 Vrms. Typical switching times include a rise time of 4µs and a fall time of 3µs. The component is housed in a 4-DIP package.
Feature Summary
- Provides electrical isolation via an infrared LED and NPN phototransistor pair
- Offers high current transfer ratio for efficient signal transmission
- Features robust insulation voltage rating for safety isolation
Applications
- General-purpose signal isolation in industrial control systems
- Interface circuits between microprocessors and power devices
- Switching applications requiring galvanic isolation
Procurement Notes
Verify the specific suffix code on the component marking, as variations exist within the PC123 family. Confirm that the required current transfer ratio range aligns with your circuit design specifications. Check the lifecycle status, as some variants may be discontinued or recommended against new designs. Ensure the package type matches your PCB footprint requirements before ordering.
Selection Notes
Select this component when a standard transistor output optocoupler with moderate speed and high CTR is required. Consider the 70V collector-emitter voltage limit for load compatibility. Evaluate the 4-DIP package constraints for board space. Compare performance against other Sharp PC123 series variants if specific packaging or CTR tolerances differ from this model's capabilities.
Part Context
The PC123YS belongs to the Sharp PC123 series of transistor output optocouplers. This series is designed for general-purpose isolation applications. The device utilizes a gallium arsenide infrared LED coupled to an NPN silicon phototransistor. It is part of a broader family of optoisolators offering various packaging options and electrical characteristics for different isolation needs.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative components such as the FOD817A only through independent datasheet comparison of pinouts and electrical parameters.
