PS2505-4XSMT&R

Overview

The PS2505-4XSMT&R is a surface-mount optically coupled isolator manufactured by Isocom Components. It features two infrared light-emitting diodes connected in inverse parallel and NPN silicon phototransistors within a space-efficient dual-in-line plastic package. The device provides high isolation voltage of 5.3 kVrms and 7.5 kV peak, supporting AC or polarity-insensitive input signals. Key electrical parameters include a typical rise time of 4 µs and a typical fall time of 3 µs. The maximum forward voltage is 1.4 V, with a maximum input current of 50 mA. The unit operates within a temperature range of -30°C to 100°C.

Feature Summary

• Features an AC-input capable design utilizing two infrared LEDs in inverse parallel for polarity-insensitive operation.
• Provides high electrical isolation between input and output circuits to ensure signal integrity across different potentials.
• Utilizes NPN silicon phototransistor output for reliable digital signal transmission.

Applications

• Computer terminals
• Industrial systems controllers
• Telephone sets and exchanges
• Signal transmission between systems of different potentials

Procurement Notes

Verify the specific suffix 'SMT&R' confirms the tape-and-reel packaging format required for automated assembly processes. Ensure the 'X' designation aligns with the requested lead spread or variant specifications. Confirm that the component meets the necessary environmental standards for the intended deployment environment. Cross-reference the manufacturer's latest datasheet to validate any recent updates to pinout configurations or electrical tolerances before finalizing procurement orders.

Selection Notes

Select this component when high-density mounting is required alongside AC input compatibility. The inverse-parallel LED configuration simplifies circuit design by eliminating the need for external rectification components. Consider the 5.3 kVrms isolation rating for applications requiring robust safety barriers. Evaluate the surface-mount footprint constraints against available PCB real estate to ensure proper placement and thermal management during soldering operations.

Part Context

This part belongs to the PS2505 series of high-density optocouplers from Isocom Components. The series is designed for applications demanding compact solutions with high isolation capabilities. The PS2505-4 variant specifically offers four channels within a single package, maximizing integration density. The SMT&R suffix indicates a reel-packaged version suitable for high-volume surface-mount technology production lines.

Replacement Considerations

PS2505-4SM

FAQ

What is the isolation voltage rating of the PS2505-4XSMT&R?

The device supports an isolation voltage of 5.3 kVrms and 7.5 kV peak.

How does the input configuration handle AC signals?

It uses two infrared LEDs connected in inverse parallel, allowing for AC or polarity-insensitive input operation.