PS2501L-2-A

Overview

The CEL PS2501L-2-A is a dual-channel transistor-output optoisolator designed for high-voltage isolation between control and load circuits. It features an NPN phototransistor output configuration housed in an 8-pin DIP package with a 0.300-inch (7.62mm) width. The device provides a basic insulation voltage of 5300 Vrms, ensuring robust signal transmission across isolated boundaries. Key electrical parameters include a maximum collector-emitter voltage of 80V and a collector current rating of 50mA per channel. The unit operates within a temperature range of -30°C to +100°C and supports AC input types.

Feature Summary

• Provides galvanic isolation between input and output circuits using LED-to-phototransistor technology
• Dual-channel architecture allows independent signal transmission for two separate circuits
• High insulation voltage capability ensures safety in high-potential applications
• Compatible with standard DIP mounting for through-hole PCB integration

Applications

• AC input signal detection and isolation
• Industrial control system interface circuits
• Power supply feedback loops requiring dual-channel isolation
• Microcontroller I/O protection in noisy environments

Procurement Notes

Verify the specific suffix 'A' against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Confirm that the 8-DIP package dimensions match the target footprint. Check for end-of-life or last-time-buy notices from CEL or authorized distributors before finalizing procurement plans.

Selection Notes

Select this component when dual-channel isolation is required within a single package to save board space. Ensure the application voltage does not exceed the 80V collector-emitter limit. Verify that the required isolation voltage meets or exceeds the 5300 Vrms rating. Consider thermal management if operating near the upper temperature limit of 100°C.

Part Context

This part belongs to the CEL PS2501 series of transistor-output optocouplers. The series offers various configurations including single and dual channels with different packaging options. The PS2501L-2-A specifically denotes the dual-channel variant with an 8-pin DIP form factor, distinguishing it from surface-mount or single-channel counterparts in the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult manufacturer cross-reference guides for equivalent dual-channel DIP optocouplers with matching isolation ratings.