PS2501L-1-F3-K-A

Overview

The PS2501L-1-F3-K-A is a single-channel transistor-output optoisolator manufactured by CEL. It integrates a Gallium Arsenide (GaAs) infrared emitting diode and an NPN silicon phototransistor within a compact 4-SMD gull-wing package. The device provides high electrical isolation with a rated insulation voltage of 5000 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80V, a collector current of 50mA, and a forward voltage of approximately 1.17V at the specified test conditions. It operates across a wide temperature range from -55°C to 100°C.

Feature Summary

• Provides galvanic isolation between input and output circuits using optical coupling technology.
• Features a surface-mountable 4-SMD gull-wing package designed for automated assembly.
• Utilizes a GaAs LED and NPN phototransistor configuration for reliable signal transmission.

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops
• Microcontroller interface circuits

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential counterfeits in the market. Confirm that the specific suffix K-A matches the required tape-and-reel packaging format if automated placement is intended. Ensure compliance with RoHS directives as indicated by the E4 or similar environmental codes associated with this series. Cross-reference datasheet revisions to confirm pinout consistency before finalizing procurement orders.

Selection Notes

Select this component when a low-profile surface mount solution is required for single-channel isolation. Consider the 5000 Vrms insulation rating for applications demanding robust noise immunity. Evaluate the 80V collector-emitter voltage limit against load requirements. Compare switching speeds and CTR specifications against alternative models if higher bandwidth or gain is necessary for the specific circuit design.

Part Context

This part belongs to the PS2501L family of NEPOC series optoisolators. It shares functional similarities with the PS2501-1 but differs in package style, utilizing a lead-bending gull-wing form factor instead of a traditional DIP. This family is widely used in general-purpose isolation applications where space constraints favor surface mount technology over through-hole components.

Replacement Considerations

Direct substitutes may include other PS2501L variants with compatible pinouts. Verify that replacement parts maintain the same 4-SMD gull-wing footprint and electrical ratings. Check for equivalent isolation voltages and current transfer ratios to ensure circuit compatibility without redesign.