EL817(M)(B))-VG

Overview

The EL817(M)(B))-VG is a single-channel transistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode optically coupled to an NPN phototransistor in a 4-pin DIP package with wide lead spacing (M Type). The device provides high isolation voltage of 5000 Vrms between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage of 35 V, maximum forward current of 60 mA, and maximum collector current of 50 mA. The current transfer ratio ranges from 130% 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 sections
• Wide-lead spacing configuration for enhanced creepage distance exceeding 7.62 mm
• RoHS compliant and halogen-free construction
• Multiple international safety approvals including UL, VDE, SEMKO, and CSA

Applications

• Programmable controllers
• System appliances and measuring instruments
• Telecommunication equipment
• Home appliances such as fan heaters
• Signal transmission between circuits of different potentials and impedances

Procurement Notes

Verify the specific suffix codes against the manufacturer's official datasheet to ensure correct pinout and packaging type. Confirm RoHS compliance status and safety certification numbers required for your region. Check for any obsolete or end-of-life notices as distribution availability may vary. Ensure the wide-lead DIP-4 package matches your PCB footprint requirements before ordering.

Selection Notes

Select this component when high isolation voltage and wide lead spacing are critical for safety clearance. The NPN phototransistor output suits digital signal switching applications. Consider the CTR range and operating temperature limits relative to your circuit design. Verify that the 50 mA collector current rating meets the load requirements of the downstream circuitry.

Part Context

This part belongs to the EL817-G series of photocouplers from Everlight Electronics. The series offers various options including standard DIP, surface mount, and wide-lead variants. The M-type designation specifically indicates the wide-lead spacing option. The series is designed for general-purpose isolation in industrial and consumer electronics.

Replacement Considerations

Compatible substitutes within the same family include EL817(B)-VG and EL817B-G. Ensure the replacement maintains the 5000 Vrms isolation rating and NPN output configuration. Verify pin compatibility and physical dimensions if replacing in an existing assembly.