PS2581L1-L-A

Overview

The PS2581L1-L-A is a single-channel transistor output optocoupler manufactured by California Eastern Laboratories (CEL). It features high isolation voltage of 5000Vrms and operates within a temperature range of -55°C to +100°C. The device utilizes a 4-DIP package with long creepage distance for enhanced safety. Key electrical parameters include a maximum collector-emitter voltage of 80V, a maximum DC forward current of 80mA, and a typical forward voltage of 1.4V. The phototransistor output provides a maximum collector current of 50mA and a low saturation voltage of 300mV.

Feature Summary

• High isolation voltage capability for safe signal transmission between isolated circuits
• Long creepage distance design enhances reliability in high-voltage environments
• Wide operating temperature range suitable for demanding industrial applications

Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops
• Signal interface between microcontrollers and high-voltage loads

Procurement Notes

Verify the manufacturer designation carefully, as this component has been produced by both CEL and Renesas Electronics due to corporate acquisitions. Confirm the specific datasheet version matches your design requirements, particularly regarding pinout and mechanical dimensions. Ensure compliance with RoHS directives if required by your project specifications. Check for any obsolescence notices or last-time buy recommendations from authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when high isolation voltage and long creepage distance are critical for safety compliance. Consider the NPN phototransistor output configuration for standard switching applications. Evaluate the thermal performance within the specified -55°C to +100°C range for your operating environment. Compare alternative packages if space constraints exist, noting that this part uses a standard 4-DIP form factor.

Part Context

This component belongs to the PS2581 series of high-isolation optocouplers designed for robust performance in noisy electrical environments. The series is characterized by its ability to maintain signal integrity across high potential differences. Manufacturing history includes transitions between CEL and Renesas Electronics, affecting documentation sources but maintaining core functional specifications.

Replacement Considerations

PS2561AL1-1-A-N is listed as a parameter equivalent substitute by Renesas Electronics.