PS2805C-1-A

Overview

The PS2805C-1-A is a single-channel transistor output optocoupler manufactured by Renesas Electronics. It features an NPN phototransistor output and operates within a temperature range of -55°C to +100°C. Key electrical parameters include a maximum collector-emitter voltage of 80 V, a maximum collector current of 30 mA, and a forward current of 5 mA with a forward voltage of 1.2 V. The device provides an insulation voltage of 2500 Vrms and exhibits a current transfer ratio ranging from 50% to 400%. Switching characteristics are defined by a rise time of 5 μs and a fall time of 7 μs. Power dissipation is rated at 180 mW, and the component is housed in an SSOP-4 package.

Feature Summary

• Provides high isolation voltage capability for signal transmission between isolated circuits.
• Features AC input response suitable for various switching applications.
• Includes ambient light shielding within the plastic SSOP package to ensure reliable operation.

Applications

• Programmable logic controllers
• Office automation equipment
• Measurement instruments

Procurement Notes

Verify the specific suffix 'A' against the official Renesas datasheet to confirm pinout and electrical tolerances match the design requirements. Note that this component carries an NRND status, indicating it is not recommended for new designs; alternative sourcing or lifecycle management strategies should be evaluated before final procurement decisions are made.

Selection Notes

Select this component when a single-channel isolation solution with low forward current requirements is needed. The 5 mA forward current specification distinguishes it from higher-current variants like the PS2805A series. Ensure the application environment supports the specified operating temperature range and that the SSOP-4 package dimensions fit the available PCB space constraints.

Part Context

This part belongs to the PS2805C series of optical couplers, which utilize GaAs LEDs and NPN silicon phototransistors. The series is designed for high-density applications requiring cost-effective isolation. The PS2805C-1-A specifically denotes the single-channel variant with standard AC input response characteristics and specific packaging options.

Replacement Considerations

Public confirmed substitute part numbers are not identified in the provided documentation. Due to the NRND status, direct replacement verification requires consulting the manufacturer's obsolescence notices or cross-reference guides for equivalent single-channel transistor output optocouplers.