EL814 PHOTOTRANSISTOR OPTOCOUPLER DIP-4

The EL814 Series 4 Pin Phototransistor Optocoupler is a highly efficient component used to electrically isolate different sections of a circuit. This optocoupler integrates a gallium arsenide infrared LED on the input side and a silicon NPN phototransistor on the output side. It is designed to transfer electrical signals by using light waves to provide electrical isolation, thus protecting the sensitive parts of the circuit from high voltages and transients.

Key Features of EL814 Series 4 Pin Phototransistor Optocoupler:

• • High Isolation Voltage: Provides isolation voltage up to 5,000 Vrms.
  • Wide Operating Temperature Range: Operates efficiently between -55°C to +110°C.
  • High CTR (Current Transfer Ratio): Ensures efficient signal transfer with a CTR range of 50% to 600%.
  • Low Input Current: Requires a low input drive current, making it energy-efficient.
  • Reliable and Durable: Offers consistent performance and long operational life.

Technical Specifications of EL814 Series 4 Pin Phototransistor Optocoupler:

• • Input Type: Infrared LED.
  • Output Type: Phototransistor.
  • Isolation Voltage: Up to 5,000 Vrms.
  • CTR (Current Transfer Ratio): 50% to 600% at IF=5mA, VCE=5V.
  • Forward Voltage: 1.2V (typical) at IF=20mA.
  • Collector-Emitter Voltage: 80V (maximum).
  • Emitter-Collector Voltage: 7V (maximum).
  • Collector Current: 50mA (maximum).
  • Power Dissipation: 150mW (maximum).

Mechanical Specifications of EL814 Series 4 Pin Phototransistor Optocoupler:

• • Package Type: 4-pin DIP.
  • Pin Configuration: Pin 1 (Anode), Pin 2 (Cathode), Pin 3 (Emitter), Pin 4 (Collector).
  • Material: Plastic package with flame retardant epoxy resin.
  • Lead Frame: Tin-plated.
  • Operating Temperature Range: -55°C to +110°C.

Dimensions:

• • Length: 6.4mm
  • Width: 4.3mm
  • Height: 3.6mm
  • Pin Pitch: 2.54mm

Mounting Options:

• • Through-Hole Mount: Designed for through-hole mounting on PCBs.
  • Socket Mount: Can be mounted using appropriate IC sockets.

Schematic Diagram, Connection, Wiring and Pinout of EL814 Series 4 Pin Phototransistor Optocoupler:

• • Pin Configuration: Pin 1 (Anode), Pin 2 (Cathode), Pin 3 (Emitter), Pin 4 (Collector).
  • Connection: LED input side is connected to the signal source, and the phototransistor output side is connected to the load.
  • Wiring: Ensure correct polarity and secure connections to maintain isolation integrity.

Datasheet of EL814 Series 4 Pin Phototransistor Optocoupler:

• • Datasheet

Applications of EL814 Series 4 Pin Phototransistor Optocoupler:

• • Switching Power Supplies: Provides isolation in switching power supplies.
  • Microcontroller Interface: Used for isolating microcontrollers from high voltage circuits.
  • Signal Isolation: Ensures signal integrity in communication interfaces.
  • Industrial Controls: Utilized in industrial control systems for safety and protection.
  • Medical Equipment: Ensures patient safety by isolating different parts of medical devices.

Equivalent of EL814 Series 4 Pin Phototransistor Optocoupler:

• • PC817: Offers comparable performance and sensitivity.
  • 4N25: Known for its similar characteristics and applications.
  • TLP521: Features matching mechanical and electrical specifications.

Package Includes:

• • 1 x EL814 Series 4 Pin Phototransistor Optocoupler