EL357N-C PHOTOTRANSISTOR OPTO-COUPLER SOP-4

The EL357N-C is a high-performance phototransistor opto-coupler designed to isolate electrical signals between circuits while allowing data transmission. It is commonly used in applications where noise isolation and signal integrity are important. The device is packaged in a compact SOP-4 package, making it ideal for space-constrained designs.

Key Features of EL357N-C Phototransistor Opto-Coupler:

• • Phototransistor Output: Offers efficient signal transmission and electrical isolation between input and output.
  • High Isolation Voltage: Provides an isolation voltage rating of 5000 Vrms for safe signal transfer between circuits.
  • Compact SOP-4 Package: The small package allows it to be used in compact PCB designs.
  • Wide Operating Temperature Range: Operates effectively between -55°C to +110°C, suitable for various environments.
  • Low Input Current: Requires low input current, enhancing efficiency in low-power systems.

Technical Specifications of EL357N-C Phototransistor Opto-Coupler:

• • Model: EL357N-C
  • Isolation Voltage: 5000 Vrms
  • Input Current: 20 mA (maximum)
  • CTR (Current Transfer Ratio): 50-600% (depending on the part number and operating conditions)
  • Operating Temperature Range: -55°C to +110°C
  • Package: SOP-4

Mechanical Specifications of EL357N-C Phototransistor Opto-Coupler:

• • Package Type: SOP-4 (Surface Mount)
  • Pin Count: 4 pins
  • Mounting Style: Surface-mount
  • Dimensions: 6.5 mm x 3.5 mm

Schematic Diagram, Connection, Wiring, and Pinout of EL357N-C Phototransistor Opto-Coupler:

• • Pin Configuration:
  • 1: Anode (LED)
  • 2: Cathode (LED)
  • 3: Emitter (Phototransistor)
  • 4: Collector (Phototransistor)

Applications of EL357N-C Phototransistor Opto-Coupler:

• • Power Supply Isolation: Used to isolate power supply control circuits.
  • Signal Transmission: Provides safe signal transmission between high and low voltage circuits.
  • Microcontroller Interfaces: Frequently used in MCU-based systems for isolating communication interfaces.
  • Switching Power Supplies: Used in feedback circuits for regulating power supplies.

Datasheet of EL357N-C Phototransistor Opto-Coupler:

• • • Download Datasheet

Equivalent of EL357N-C Phototransistor Opto-Coupler:

• • PC817: A widely used opto-coupler with similar isolation voltage and current transfer ratio.
  • TLP521: Another opto-coupler offering comparable performance and available in DIP-4 and SMD packages.
  • TLP181

Keywords for EL357N-C Phototransistor Opto-Coupler:

• • EL357N-C
  • Phototransistor
  • Opto-Coupler
  • Isolation
  • SOP-4

Package Includes:

• • 1 x EL357N-C Phototransistor Opto-Coupler SOP-4