EL4502S(TA)

Overview

The EL4502S(TA) is a high-speed optocoupler manufactured by Everlight Electronics Co Ltd. It features a single channel with a transistor output type, specifically a phototransistor configuration. The device supports a data rate of 1 Mb/s and provides an insulation voltage of 5000 Vrms. It is housed in an 8-SMD surface-mount package. Key electrical parameters include a forward current of 16 mA, a forward voltage of 1.45 V, and a reverse voltage of 5 V. The current transfer ratio ranges from 19% to 50%. Power dissipation is rated at 100 mW, and the operating temperature range spans from -55°C to +100°C.

Feature Summary

• High-speed signal transmission capability supporting 1 Mb/s data rates for digital isolation applications.
• Robust electrical isolation with a 5000 Vrms insulation voltage rating between input and output circuits.
• Surface-mount packaging design facilitates automated assembly and compact circuit board integration.

Applications

• Digital communication interface isolation
• Microcontroller input/output isolation
• Signal transmission in noisy industrial environments

Procurement Notes

Verify the specific suffix TA against the manufacturer's latest documentation to confirm pinout and tape-and-reel specifications. Ensure compatibility with surface-mount assembly processes. Cross-reference the part number with official Everlight distributors to confirm current availability status and lead times. Check for any recent product change notifications that may affect performance or packaging details before finalizing procurement orders.

Selection Notes

Select this component when high-speed digital isolation is required in a compact surface-mount form factor. The 1 Mb/s data rate suits moderate-speed communication protocols. Verify that the 5000 Vrms isolation voltage meets system safety requirements. Consider the 19-50% current transfer ratio for drive circuit design. Ensure the operating temperature range covers the intended application environment.

Part Context

The EL4502S(TA) belongs to Everlight's family of high-speed optocouplers designed for digital signal isolation. It shares functional similarities with other models in the series but differs in packaging and specific electrical characteristics. This variant utilizes a surface-mount technology package, distinguishing it from through-hole DIP versions like the EL4502. The product line emphasizes reliability and speed for modern electronic systems requiring galvanic isolation.

Replacement Considerations

Official substitute part numbers include EL4502S(TB)-V and EL4502S1(TA). Verify pinout compatibility and electrical parameter equivalence before substitution. Consult Everlight's Product Change Notification documents for updated replacement guidance.