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.
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 leaded 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.
