PS2503L-4-A

Overview

The PS2503L-4-A is a transistor output optocoupler manufactured by CEL, featuring four independent channels in a single package. It provides high-speed switching capabilities with an isolation voltage of 5000 Vrms. The device utilizes an NPN phototransistor output configuration and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 40V, a maximum collector current of 30mA, and a forward current rating of 80mA. The typical rise and fall times are 20 microseconds each, supporting efficient signal transmission across isolated circuits.

Feature Summary

• Four-channel configuration for compact multi-circuit isolation
• High-speed switching performance suitable for digital signal transmission
• Robust insulation capability with 5000 Vrms isolation voltage
• Wide operating temperature range for industrial environments

Applications

• Industrial automation control systems requiring multi-channel isolation
• Computer peripheral interfaces for data transmission
• Power supply feedback loops for voltage regulation
• Signal isolation in measurement and testing equipment

Procurement Notes

Verify the manufacturer designation carefully, as Renesas Electronics also produces similar part numbers in the PS2503L series. Confirm that the specific suffix matches the CEL manufacturing origin rather than Renesas. Ensure the component meets RoHS compliance requirements for your assembly process. Check for any obsolescence notices or lifecycle status updates directly from the supplier before finalizing procurement plans.

Selection Notes

Select this component when multiple isolated channels are required in a limited board space. The four-channel design reduces footprint compared to using individual single-channel optocouplers. Consider the 20-microsecond switching speed for applications requiring moderate data rates. Ensure the circuit design accommodates the 40V collector-emitter voltage limit and the 30mA maximum collector current specifications for reliable operation.

Part Context

This component belongs to the PS2503L family of transistor output optocouplers. The family includes variants with different channel counts, such as single-channel (PS2503L-1) and dual-channel (PS2503L-2) versions. The PS2503L-4-A specifically offers quad-channel integration, distinguishing it from lower-density options while maintaining the same core electrical characteristics and package style common to the series.

Replacement Considerations

Direct substitutes may include other quad-channel transistor output optocouplers with comparable isolation ratings. Verify pin compatibility and electrical parameters against alternatives like the PS2503L-4-E if available from the same manufacturer. Cross-reference specifications with equivalent parts from other vendors ensuring matching voltage, current, and speed ratings.