PS2505L-2-A

Overview

The PS2505L-2-A is a dual-channel transistor output optoisolator manufactured by CEL. It provides 5000Vrms isolation voltage between input and output circuits. The device features an NPN phototransistor output with a maximum collector-emitter voltage of 80V and a continuous collector current of 50mA per channel. Typical rise and fall times are 3µs and 5µs, respectively. The Current Transfer Ratio ranges from 80% to 600% at a forward current of 5mA. It operates within a temperature range of -55°C to 100°C and is housed in an 8-DIP package.

Feature Summary

• Dual-channel configuration for independent signal isolation
• High isolation voltage rating of 5000Vrms
• AC input response capability
• Wide operating temperature range

Applications

• Industrial control systems requiring high-voltage signal transmission
• General-purpose digital isolation interfaces
• Microcontroller input/output isolation

Procurement Notes

Verify the exact part number suffix against official datasheets to confirm pinout and electrical specifications. Confirm component status as obsolete or not recommended for new designs before procurement planning. Ensure compatibility with existing PCB footprints and thermal management requirements during integration.

Selection Notes

Select this component when dual-channel isolation is required within a single package. Consider the 80V output voltage limit and 50mA current capacity for load matching. Evaluate the 3µs/5µs switching speeds against system timing requirements. Verify that the 8-DIP through-hole package fits the assembly constraints.

Part Context

This component belongs to the PS2505 series of optocouplers designed for general-purpose isolation applications. The 'L' variant typically denotes specific packaging or lead-free characteristics compared to standard versions. It serves as a bridge between low-voltage control circuits and higher-voltage loads while maintaining electrical safety standards.

Replacement Considerations

Check for direct substitutes such as PS2505L-2-E3-A which may offer updated manufacturing statuses. Verify pin compatibility and electrical parameter equivalence before substitution.