EL4502S1(TA)

Overview

The EL4502S1(TA) is a high-speed optocoupler manufactured by Everlight Electronics Co Ltd. It features an 8-pin DIP package with a tape and reel (TA) configuration for automated assembly. The device provides one channel of isolation with a data rate of 1 Mb/s. Key electrical parameters include an insulation voltage of 5000 Vrms, a forward current of 16 mA, and a forward voltage of 1.45 V. The output type is specified as a phototransistor in official documentation, despite some distributor listings indicating Photodarlington. The component operates within a temperature range of -55°C to +100°C and has a power dissipation rating of 100 mW.

Feature Summary

• High-speed signal transmission capability supporting 1 Mb/s data rates
• Robust electrical isolation rated at 5000 Vrms
• Tape and reel packaging format designed for surface mount automation

Applications

• Digital communication interfaces requiring galvanic isolation
• Microcontroller input/output isolation circuits
• Industrial control systems with high noise immunity requirements

Procurement Notes

Verify the specific suffix TA indicates tape and reel packaging when ordering. Confirm the output transistor type against the latest manufacturer datasheet, as distributor descriptions may vary between phototransistor and photodarlington classifications. Ensure the 8-pin DIP form factor matches the target PCB footprint design constraints.

Selection Notes

Select this component when high-speed digital isolation is required alongside surface mount assembly processes. The 1 Mb/s speed suits most standard serial communication protocols. Consider the 5000 Vrms isolation rating for safety-critical applications. Verify thermal management needs given the 100 mW power dissipation limit in enclosed environments.

Part Context

This part belongs to Everlight's high-speed optocoupler family. It shares functional similarities with the EL4502 but differs in packaging. The TA suffix specifically denotes the tape and reel variant, distinguishing it from tube-packaged versions. This variation facilitates integration into automated pick-and-place manufacturing lines.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.