EL213

Overview

The EL213 is a single-channel phototransistor output optocoupler manufactured by Everlight Electronics. It features an infrared emitting diode coupled to an NPN phototransistor in an 8-pin SOP package. The device provides electrical isolation with a rated insulation voltage of 3750 Vrms. Key electrical parameters include a collector-emitter breakdown voltage (VCEO) of 80V and a forward current (IF) rating typically up to 50mA, depending on the specific suffix variant. It is designed for surface mount technology applications requiring signal isolation between circuits.

Feature Summary

• Provides high-voltage electrical isolation between input and output circuits
• Integrates an infrared LED emitter with an NPN phototransistor detector
• Utilizes an 8-pin Small Outline Package (SOP) for surface mount assembly
• Designed for digital signal transmission across isolated boundaries

Applications

• Digital signal isolation in microcontroller interfaces
• Switching power supply feedback loops
• Industrial control system signal transfer
• Communication interface isolation

Procurement Notes

Verify the specific ordering suffix (e.g., TA, TB, VC) as these denote variations in packaging, lead time, or compliance status such as RoHS. Confirm the exact datasheet version matches the required electrical characteristics. Check availability status as production lifecycles may affect supply continuity. Ensure the selected variant meets the specific insulation voltage and current transfer ratio requirements for the target application design.

Selection Notes

Select the EL213 when a single-channel transistor output isolator is required in an 8-pin SOP form factor. Compare the Current Transfer Ratio (CTR) specifications against the load requirements of the receiving circuit. Verify that the 80V collector-emitter voltage rating exceeds the maximum operating voltage of the output side. Consider thermal management and soldering profile compatibility with standard reflow processes during PCB layout.

Part Context

The EL213 belongs to Everlight's family of transistor output optocouplers. These devices are engineered for general-purpose isolation tasks where cost-effective, reliable signal transfer is needed. The SOP-8 package allows for automated placement, supporting high-volume manufacturing. This series complements other optocoupler offerings by providing a compact solution for low-to-medium speed digital isolation applications.

Replacement Considerations

Direct pin-compatible replacements may include other single-channel SOP-8 phototransistor optocouplers from manufacturers like Vishay or ON Semiconductor, provided the CTR, isolation voltage, and package dimensions match. Verify functional equivalence through detailed datasheet comparison rather than assuming interchangeability based solely on package type.