PS2501-1-A

Overview

The PS2501-1-A is a single-channel optocoupler from the NEPOC series, manufactured by Renesas Electronics Corporation. It features a GaAs infrared LED coupled to an NPN silicon phototransistor. Key electrical parameters include a maximum collector-emitter voltage of 80V and a continuous output current of 50mA per channel. The device provides 5000Vrms isolation voltage and operates within a temperature range of -55°C to 100°C. Typical rise and fall times are 3µs and 5µs, respectively. The component is housed in a 4-DIP package with a pin spacing of 7.62mm.

Feature Summary

• High isolation voltage capability of 5000Vrms for robust signal transmission between isolated circuits
• Fast switching performance with typical rise time of 3µs and fall time of 5µs
• Wide operating temperature range extending from -55°C to +100°C for industrial reliability
• NPN phototransistor output compatible with standard digital logic interfaces

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission across isolated ground planes
• Microprocessor input/output interface circuits
• Power supply feedback loops

Procurement Notes

Verify the specific suffix 'A' corresponds to the PDIP package variant, as other suffixes may indicate different packaging or lead-free status. Confirm the component status is NRND (Not Recommended for New Designs) to assess long-term availability risks. Ensure the datasheet version matches the required specifications for your design review. Check for any recent Product Change Notifications regarding manufacturing site or material changes.

Selection Notes

Select this component when a single-channel transistor output isolator is required with high voltage isolation. Compare the 80V collector-emitter voltage against load requirements. Consider the 50mA output current limit for driving downstream components. Evaluate the 4-DIP footprint against PCB layout constraints. Verify that the DC input type meets the source circuit characteristics.

Part Context

This part belongs to the PS2501 family of optocouplers, which includes variants like PS2501-4 and PS2501L-1. The PS2501-1-A specifically denotes the single-channel version in a through-hole DIP package. It shares core technology with the SMD PS2501AL-1 but differs in mounting style and pin configuration. The family is designed for general-purpose isolation applications.

Replacement Considerations

Direct substitutes include PS2501-1 without the 'A' suffix if package compatibility is confirmed. Other single-channel transistor output optocouplers with similar isolation ratings may serve as alternatives, provided pinouts and electrical limits match.