The ZXRE250/2 are three terminal adjustable shunt regulators offering excellent temperature stability and output current handling capability up to 100mA.
These devices feature a very low cathode current for regulation, typically 40μA.
They provide a low power enhancement to industry standard ‘431 parts. Available as standard A grade (1% tolerance) and B grade (0.5% tolerance), all with a -40oC to 125oC temperature range as standard.
The ZXRE250 is available in 3-pin and 5-pin versions of SOT23, ZXRE252 offers a reverse pinout in SOT23. The ZXRE250/2 can be used as a replacement for Zener diodes in many applications requiring an improvement in Zener performance.

The Diodes advantage
■ Very low minimum cathode current for regulation; 40μA typical
   Ensures minimum power dissipation in applications such as idle
   power for ACDC external PSU’s for laptop PC’s
■ Wide temperature range: -40 to 125oC
   Simplifies component choice and stocking
■ Maximum cathode voltage of 36V
   Matches industry standard ‘431; allowing it to be used in a wide
   range of applications
■ Available in SOT23 and SOT25 with green (no Br, Sb) molding compound
   Environmentally friendly small surface mount package variants
■ 0.5% and 1% variants in all package options
   Meets requirements of modern equipment