PS2801C-1-L-A

Overview

The PS2801C-1-L-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It integrates a GaAs infrared emitting diode and an NPN silicon phototransistor within a compact SSOP-4 package. The device provides high isolation voltage of 2500 Vrms, ensuring reliable signal transmission across isolated circuits. Key electrical parameters include a collector-emitter breakdown voltage (VCEO) of 80 V, a forward current (If) rating of 30 mA, and a typical rise time of 5 μs. The unit operates within a temperature range of -55°C to +100°C and features a current transfer ratio ranging from 50% to 400%. This component is designed for high-density applications requiring effective ambient light shielding.

Feature Summary

• Integrates a GaAs LED and NPN phototransistor in a shielded SSOP-4 package to block ambient light interference.
• Provides high-voltage isolation capability with a rated insulation voltage of 2500 Vrms.
• Features a high collector-to-emitter breakdown voltage of 80 V for robust circuit protection.
• Designed for high-density mounting with a small form factor and 1.27 mm pin pitch.

Applications

• Signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic devices
• Power supply feedback loops requiring galvanic isolation

Procurement Notes

Verify the specific suffix 'L' against official Renesas documentation, as standard listings often use suffixes like 'F3' or 'F4' for tape-and-reel packaging. Confirm the lifecycle status, as related PS2801C models are frequently marked as Not Recommended for New Designs (NRND). Ensure compatibility with existing PCB footprints for SSOP-4 packages before procurement.

Selection Notes

Select this component when a single-channel isolation solution with high voltage withstand capability is required. The 80 V collector-emitter voltage allows for versatile switching applications. Consider the 5 μs switching speed for moderate-frequency digital signals. Verify that the SSOP-4 package dimensions fit the target board space constraints compared to larger DIP alternatives.

Part Context

This part belongs to the PS2801C series of high-isolation voltage photocouplers. The series utilizes plastic SSOP packages available in 4-pin and 16-pin configurations. These devices are engineered for cost-effective performance in high-density electronic assemblies, combining optical coupling with physical shielding to maintain signal integrity in electrically noisy environments.

Replacement Considerations

Check for direct substitutes such as PS2801C-1-F3 or PS2801C-1-F4 if packaging differences exist. Other single-channel transistor output optocouplers with similar 2500 Vrms isolation and SSOP-4 packages may serve as functional equivalents, provided pinouts and electrical ratings match.