Logo
Cart  Sample cart Part search Contact us my.Centralsemi  
 

Current Limiting Diodes

A Current Limiting Diode (CLD), also known as a "Current Regulating Diode" or a "Constant Current Diode" performs quite a unique function. Similar to a zener diode, which regulates voltage at a particular current, the CLD limits or regulates current over a wide voltage range. 

CLD

The CLD is diffused using a "Field Effect" process similar to the diffusion techniques used for manufacturing JFETs with the electrical characteristics optimized for high output impedance and current regulating capability.

Available in a wide range of voltage and current ratings, and offered in a variety of through-hole and surface mount package styles, the CLD provides an alternative to conventional design techniques for controlling current, especially when reliability and component density are prime considerations.

 
 
Selection guides:
Surface Mount Current Limiting Diodes
  Surface mount current limiting diodes are available in the low profile SOD-123FL package.
  Regulator currents range from 0.13mA thru 18mA. Special selection of IP (regulator
  current) is available upon request for critical applications.
  SOD-80 versions are also available.
 
Through-hole Current Limiting Diodes - Standard Current (Included Typical Electrical Curves) pdficon
  Packaged in the DO-35 case.
 
Through-hole Current Limiting Diodes - High Current (Included Typical Electrical Curves) pdficon
  Packaged in the DO-35 case.
 
Reference documents:
Boosting the Current Limit of Current Limiting Diodes pdficon
  Copy of the October, 2003 article published in ECN magazine.
 
Practical Applications For CLD pdficon
  Previously published ECN magazine article.
 
CLD Application Notes pdficon
  All files are in PDF.
 
What is a CLD and how does it operate   pdficon
  All files are in PDF.
 
Typical Electrical Curves pdficon
  For both Standard Current and High Current devices in the SOD-123FL and SOD-80 packages.
 
SPICE models
  For both Standard Current and High Current devices in the SOD-80 package.
 
 
 

pdficon = Downloadable PDF file.

For additional information please contact your local sales representative.
Help