PS2561L2-1-V

Overview

The PS2561L2-1-V is a single-channel transistor output optocoupler manufactured by CEL. It integrates a GaAs infrared emitting diode and an NPN silicon phototransistor in a surface-mount package with long creepage distance leads (Gull-wing). The device provides high isolation voltage of 5000 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 50 mA, and a forward current rating of 80 mA. The typical current transfer ratio ranges from 80% to 400%. Operating temperature spans from -55°C to +100°C.

Feature Summary

• High isolation voltage capability for safe signal transmission across potential barriers
• Surface-mount design with extended lead geometry to ensure long creepage distance
• Single-channel configuration combining GaAs LED input with NPN phototransistor output

Applications

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

Procurement Notes

Verify the specific suffix 'V' against manufacturer documentation to confirm lead form and insulation compliance. Confirm RoHS status and safety approvals such as UL or VDE if required for the target application. Check current manufacturing status as some variants may be obsolete.

Selection Notes

Select this component when long creepage distance is critical for safety standards in surface-mount designs. Ensure the 5000 Vrms isolation rating meets system requirements. Verify that the NPN open-collector output interface matches the receiving circuit logic levels.

Part Context

This part belongs to the PS2561 series of high-isolation voltage photocouplers. The L2 designation specifically indicates the lead-bending type optimized for surface mount applications with enhanced spacing. It serves as a cost-effective solution for digital signal isolation in compact electronic assemblies.

Replacement Considerations

Direct substitutes include PS2561L2-1-F3-A and PS2561AL2-1-E3-A-L. Verify pinout compatibility and isolation voltage ratings before substitution. Note that some equivalents may have different packaging or approval certifications.