PS2561L1-1-H-A

Overview

The PS2561L1-1-H-A is a single-channel transistor output optocoupler manufactured by CEL. It features an NPN phototransistor output and operates with a forward current of 10 mA and a forward voltage of 1.17 V. The device provides high isolation with an insulation voltage of 5000 Vrms. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 50 mA, and a power dissipation of 150 mW. The current transfer ratio is specified at 200%. It functions within a temperature range of -55°C to +100°C.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Utilizes an NPN phototransistor for reliable signal transmission
• Designed for operation in extended industrial temperature environments

Applications

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

Procurement Notes

Verify the manufacturer designation carefully, as this component is historically associated with California Eastern Laboratories (CEL) but may also be listed under Renesas Electronics due to corporate acquisitions. Confirm the specific suffix 'H' corresponds to the required wide DIP package and lead configuration. Ensure the part status aligns with design requirements, as availability varies across distributors.

Selection Notes

Select this component when a single channel with high isolation voltage is required. The NPN output type suits applications needing standard switching capabilities. Verify that the 80 V collector-emitter voltage and 50 mA current ratings meet the load requirements. Consider the operating temperature range if the environment exceeds standard commercial limits.

Part Context

This part belongs to the PS2561 series of optocouplers, which are widely used for general-purpose isolation. The 'L1' designation typically indicates a specific pin pitch or package variation within the family. The 'H' suffix often denotes a specific lead form or compliance version. These devices are standard solutions for noise immunity in digital communication and power control interfaces.

Replacement Considerations

Direct replacements include PS2561L1-1-V-A and PS2561DL1-1Y-A from compatible manufacturers. Verify pinout compatibility and electrical parameter equivalence before substitution. Cross-reference datasheets to ensure the replacement matches the required isolation voltage and package dimensions.