PS2505L-4-A

Overview

The PS2505L-4-A is a four-channel transistor output optocoupler manufactured by CEL. It features an NPN silicon phototransistor output and a GaAs LED input, providing 5000 Vrms isolation voltage. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 50 mA, and a power dissipation of 120 mW. The device operates within a temperature range of -55°C to +100°C and utilizes a 16-SMD surface-mount package.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Integrates four independent signal channels in a single compact package
• Utilizes GaAs LED and NPN phototransistor for reliable optical coupling

Applications

• Industrial control systems requiring multi-channel signal isolation
• AC input detection circuits with multiple phases
• Data communication interfaces needing galvanic separation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as historical data indicates non-compliance for some variants. Check current lifecycle status, as the part may be discontinued or restricted in certain regions. Ensure packaging type matches design requirements before ordering.

Selection Notes

Select this component when four isolated channels are required in a space-constrained design. Compare against PS2505L-1-A if only single-channel isolation is needed. Consider the 16-SMD package dimensions for PCB layout constraints. Verify that the 50 mA collector current rating meets load requirements.

Part Context

This component belongs to the NEPOC series of optocouplers from CEL. It shares architectural similarities with the PS2505-1 and PS2505-4 but differs in package style and specific electrical characteristics. The L-series typically denotes lead-free or specific manufacturing variations compared to standard versions.

Replacement Considerations

PS2505L-4-E3-A is a documented variant within the same family. Verify pinout compatibility and electrical specifications before substitution. Cross-reference with PS2505-4 for DIP package alternatives if surface mount is not required.