PS2503L-1-E3-A

Overview

The CEL PS2503L-1-E3-A is a single-channel transistor output optocoupler featuring an AlGaAs LED and an NPN silicon phototransistor. It provides 5000 Vrms isolation voltage with a DIP-4 gull wing package. Key electrical parameters include a minimum current transfer ratio of 100% and a maximum of 400%. The device supports a forward current of 80 mA, a collector-emitter saturation voltage of 250 mV max, and operates within a temperature range of -55°C to +100°C. Rise and fall times are typically 20 µs.

Feature Summary

• High-speed switching capability for efficient signal transmission
• Low input current operation reduces power consumption
• Robust insulation voltage ensures safe circuit isolation

Applications

• Industrial control systems requiring galvanic isolation
• Power supply feedback loops
• Signal isolation in microprocessor interfaces

Procurement Notes

Verify the specific suffix E3 confirms lead-free compliance and RoHS status against the manufacturer's latest documentation. Confirm the package type matches the required PCB footprint. Check for obsolescence notices as this component family may have replacement recommendations from the manufacturer.

Selection Notes

Select this component when high-speed switching is required alongside low input current drive capabilities. Ensure the isolation voltage rating meets the system's safety requirements. Verify that the collector current and voltage ratings accommodate the load conditions without exceeding absolute maximum ratings.

Part Context

This part belongs to the PS2503L series of low input current, high-speed switching multi photocouplers manufactured by CEL. The series is designed for applications demanding fast response times and reliable isolation between input and output circuits.

Replacement Considerations

Consult official datasheets for direct pin-compatible substitutes such as PS2503L-1-A or PS2503L-1-F3-L-A. Verify electrical parameter equivalence before substitution.