EL217(TA)

Overview

The EL217(TA) is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an NPN phototransistor output and provides an insulation voltage of 3750 Vrms. The device is housed in an 8-SOP package and is supplied in a reel format. Key electrical specifications include a minimum current transfer ratio of 100% at a forward current of 1mA.

Feature Summary

• Provides high-voltage isolation between input and output circuits
• Utilizes an NPN phototransistor for signal transmission
• Designed for surface mount assembly via SOP packaging

Applications

• Industrial control systems requiring galvanic isolation
• Signal transmission across isolated ground potentials
• Power supply feedback loops

Procurement Notes

Verify the specific suffix designation, as variants such as EL217(TA)-V may exist with distinct regulatory or packaging attributes. Confirm availability status directly with authorized distributors, as stock levels fluctuate. Ensure compliance with RoHS and REACH requirements relevant to the target market. Validate that the 8-SOP package dimensions match the intended PCB footprint before finalizing procurement orders.

Selection Notes

Select this component when a single channel of isolation with an NPN output is required. The 3750 Vrms insulation rating suits applications demanding robust separation between high-voltage and low-voltage domains. Consider the 100% CTR specification for logic interface compatibility. Evaluate thermal management needs associated with the SOP package in dense circuit layouts.

Part Context

This part belongs to the EL217 series of transistor output optocouplers from Everlight. The series typically includes variations such as ELD217(TA)(D)-V, which denotes dual-channel configurations. The EL217(TA) specifically represents the single-channel variant within this product family, sharing similar core isolation technologies but differing in channel count and pin configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence regarding isolation voltage, CTR, and package dimensions when considering alternative components.