Description

The LD2114AL-3 is an optically coupled pair with a gallium arsenide infrared LED and a silicon NPN phototransistor. It can transmit signal information while maintaining a high degree of electrical isolation between input and output. The LD2114AL-3 comes in a standard SOIC-8 small outline package for surface mounting, making it suitable for high-density applications with limited space. It eliminates the need for through-holes and conforms to standards for surface-mounted devices. The LD2114AL-3 has a specified minimum and maximum CTR, allowing for a narrow tolerance in the electrical design of adjacent circuits. It also has a high BVCEO of 70 volts, providing a higher safety margin compared to the industry standard of 30 volts.

Specifications and features

• Two Channel Coupler
• Industry Standard SOIC-8 Surface Mountable Package
• Standard Lead Spacing of .05"
• Available in Tape and Reel Option (Conforms to EIA Standard 481-2)
• Isolation Test Voltage: 2500 VRMS
• High Current Transfer Ratios:
  • ILD205: 40 – 80%
  • ILD206: 63 – 125%
  • ILD207: 100 – 200%
  • ILD211: 20% Minimum
  • ILD213: 100% Minimum
  • ILD217: 100% Minimum at 1 mA
• High BVCEO: 70 V
• Compatible with Dual Wave, Vapor Phase, and IR Reflow Soldering

Application Scenarios

The LD2114AL-3 is suitable for various applications where signal transmission with electrical isolation is required. Its small outline package and surface mountability make it ideal for high-density applications with limited space. It can be used in electronic devices and systems that require narrow tolerance in electrical design and a higher safety margin.

Comparison

• Provides high electrical isolation between input and output
• Conforms to standards for surface-mounted devices
• Eliminates the need for through-holes
• Has a specified minimum and maximum CTR for narrow tolerance in electrical design
• Offers a higher safety margin with a high BVCEO of 70 volts
• Compatible with various soldering methods

No specific disadvantages have been reported for the LD2114AL-3.