EL817(M)(D))-VG

Overview

The EL817(M)(D))-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics Co Ltd. It features an infrared emitting diode optically coupled to an NPN phototransistor detector, housed in a DIP-4 package with 0.4-inch lead spacing. The device provides high isolation voltage of 5000 Vrms between input and output. Key electrical parameters include a collector-emitter breakdown voltage of 35 V minimum, a maximum forward current of 60 mA, and a collector current of 50 mA. The current transfer ratio ranges from 300% to 600% at IF=5mA and VCE=5V. Operating temperature spans from -55°C to +110°C.

Feature Summary

• High isolation voltage capability of 5000 Vrms between input and output circuits
• Wide operating temperature range supporting environments from -55°C to +110°C
• Compliant with international safety standards including UL, VDE, SEMKO, and CSA approvals

Applications

• Industrial control systems requiring signal isolation
• Power supply feedback loops for voltage regulation
• Communication equipment interface circuits

Procurement Notes

Verify the specific suffix configuration against the official Everlight datasheet to ensure compatibility with required lead spacing and mounting type. Confirm RoHS compliance status and relevant safety certifications such as UL or VDE are present on the component marking. Ensure the ordering code matches the exact package variant needed for the PCB layout design.

Selection Notes

Select this component when a standard DIP-4 form factor with extended lead spacing is required for through-hole mounting. Consider the CTR range of 300% to 600% for applications needing higher gain compared to standard variants. Verify that the 5000 Vrms isolation rating meets the safety requirements of the target application environment.

Part Context

This part belongs to the EL817 series of photocouplers produced by Everlight Electronics. The series includes various package options such as standard DIP, surface mount, and specialized lead configurations. The EL817 series is widely recognized for its reliability in general-purpose isolation applications across consumer and industrial electronics sectors.

Replacement Considerations

Direct substitutes may include other EL817 variants with different CTR grades or package types, provided the pinout and isolation ratings remain compatible. Cross-referencing with equivalent parts from other manufacturers requires verification of pin configuration and electrical characteristics.