EL814S1(TA)-V

Overview

The EL814S1(TA)-V is a single-channel optocoupler featuring an AC/DC input phototransistor output. It provides 5000 Vrms isolation voltage and supports a collector-emitter breakdown voltage of 80 V. The device operates within a temperature range of -55°C to 110°C, with a typical forward voltage of 1.2 V and a maximum DC forward current of 60 mA.

Feature Summary

• Dual infrared emitting diodes connected in inverse parallel enable AC input response capability alongside standard DC operation.
• High isolation voltage between input and output ensures robust electrical insulation for safety-critical applications.
• Wide operating temperature range allows reliable performance in extreme thermal environments from -55°C to 110°C.

Applications

• Digital logic signal transmission and level shifting
• Power supply control and switching circuits
• Electrical isolation between circuit stages or systems

Procurement Notes

Verify the specific suffix (TA) corresponds to the required tape-and-reel packaging configuration. Confirm RoHS compliance status and UL/VDE recognition numbers match project requirements. Ensure the AC-input variant meets the intended signal type specifications before procurement.

Selection Notes

Select this component when AC input detection is required within a transistor-output optocoupler. The dual-diode input structure distinguishes it from standard single-diode variants. Verify that the 80 V output voltage rating and 5000 Vrms isolation are sufficient for the target circuit's voltage levels.

Part Context

This part belongs to the EL814 series, which utilizes inverse-parallel infrared LEDs coupled to a phototransistor detector. The TA suffix typically denotes surface-mount packaging in a 4-pin configuration. The series is designed for compact designs requiring high isolation and AC compatibility.

Replacement Considerations

Compatible substitutes include other EL814 series variants such as EL814S1(A)(TB)-V or EL814S1(A)(TD)-V, provided the package style matches the PCB layout. Verify that alternative parts maintain the same AC input capability and isolation ratings.

FAQ

What enables the EL814S1(TA)-V to handle AC inputs?

The device contains two infrared emitting diodes connected in inverse parallel, allowing it to respond to both positive and negative half-cycles of an AC signal.

What is the maximum collector-emitter voltage for this optocoupler?

The maximum collector-emitter breakdown voltage (VCEO) is specified as 80 V.