PS2561AL2-1-A

Overview

The PS2561AL2-1-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output and operates with a maximum collector-emitter voltage of 70 V and a peak forward current of 10 mA. The device provides high isolation with a rated insulation voltage of 5000 Vrms. It utilizes a DIP-4 Gull Wing package for surface mount installation. Key electrical parameters include a typical current transfer ratio of 400%, a maximum collector current of 30 mA, and a power dissipation rating of 150 mW. The unit supports an operating temperature range from -55°C to +100°C.

Feature Summary

• Provides galvanic isolation between input and output circuits using infrared LED and NPN phototransistor technology.
• Features a compact DIP-4 Gull Wing surface mount package designed for automated assembly processes.
• Offers high dielectric strength with a 5000 Vrms insulation voltage rating for safety compliance.

Applications

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

Procurement Notes

Verify the specific suffix configuration against official datasheets, as variations such as AL2 or L1 may indicate differences in packaging, lead finish, or manufacturing lot specifications. Confirm availability status directly with authorized distributors, as this component may be subject to discontinuation or limited stock constraints. Ensure RoHS compliance documentation matches the required project standards before finalizing procurement orders.

Selection Notes

Select this component when a single-channel isolation solution with moderate speed and high CTR is required. The 70 V collector-emitter voltage suits low-voltage logic interfacing. Compare the 10 mA forward current limit against system drive capabilities. Verify that the DIP-4 SMD footprint aligns with the PCB layout requirements. Consider thermal management within the 150 mW dissipation limit during continuous operation.

Part Context

This part belongs to the PS2561A series of transistor output optocouplers from Renesas Electronics. The series is characterized by high current transfer ratios and robust isolation capabilities. The AL2 designation typically denotes specific packaging or revision details within the broader product family. These devices are widely used in applications demanding reliable electrical isolation between control and power stages.

Replacement Considerations

Cross-reference with PS2561AL1-1Y-A for similar performance characteristics. Verify pinout compatibility and electrical ratings against alternatives like PS2561L1-1-V-D-A. Ensure substitute components meet the same isolation voltage and package type requirements.