PC123X1YIP1B

Overview

The PC123X1YIP1B is a single-channel transistor output optocoupler manufactured by Sharp Microelectronics. It features an SMD-4 surface mount package and provides 5000 Vrms isolation voltage between input and output circuits. The device supports a maximum forward current of 20 mA with a typical forward voltage of 1.2 V. Electrical performance includes a collector-emitter saturation voltage of 200 mV, a reverse voltage rating of 6 V, and a power dissipation capacity of 200 mW. Timing characteristics specify a typical rise time of 4 µs and a fall time of 3 µs. The unit operates within a temperature range of -30°C to +100°C.

Feature Summary

• Provides high-voltage electrical isolation via a 5000 Vrms dielectric barrier between input and output sections.
• Utilizes a phototransistor output stage for signal transmission across the isolation barrier.
• Designed for surface-mount assembly using a compact four-terminal SMD-4 package configuration.

Applications

• Signal isolation in industrial control systems
• Interface circuits for microcontroller-based digital logic
• Power supply feedback loop isolation

Procurement Notes

Verify the specific suffix IP1B against official Sharp datasheets to confirm pinout and packaging details. Ensure sourcing channels provide valid RoHS compliance documentation. Confirm that the supplier offers genuine Sharp Microelectronics products rather than generic equivalents. Validate that the component meets the required operating temperature range for the intended application environment before finalizing procurement orders.

Selection Notes

Select this component when high isolation voltage is required in a small surface-mount footprint. The transistor output type suits applications needing moderate switching speeds with low propagation delay. Consider the 20 mA forward current limit and 80 V collector-emitter voltage rating during circuit design. Ensure the thermal management strategy accommodates the 200 mW power dissipation specification under worst-case operating conditions.

Part Context

This part belongs to Sharp's family of transistor output optocouplers designed for general-purpose isolation tasks. The PC123 series typically offers reliable performance in compact electronic designs requiring galvanic separation. The SMD-4 variant facilitates automated assembly processes in modern printed circuit board manufacturing workflows.

Replacement Considerations

PC123X1YIP0F