DESCRIPTION
The  1N5221BUR  thru  1N5281BUR  series  of  0.5  watt  Zener  Voltage Regulators  provides  a  surface  mount  equivalent  to  the  popular  JEDEC registered  1N5221B  to  1N5281B  for  2.4  to  200  volts  in  standard  5% tolerances  as  well  as  tighter  tolerances  identified  by  different  suffix  letters  on the  part  number.  These  are  also  available  with  an  internal-metallurgical bond  option  by  adding  a  “-1”  suffix  (see  separate  data  sheet).  Microsemi also  offers  numerous  other  Zener  products  to  meet  higher  and  lower  power applications.

FEATURES
• Surface mount equivalentsto the JEDEC registered 1N5221 thru 1N5281B  series
• Hermetically sealed surface mount package
• RoHS Compliant devices available by adding “e3” suffix
• Internal metallurgical bond option available by adding a “-1” suffix (see separate data sheet for same part numbers with “-1” suffix)
• DO-7 or DO-35 glass body axial-leaded Zener equivalents also available per JEDEC registration (see separate data sheet for part numbers 1N5221 thru 1N5281B series )

APPLICATIONS / BENEFITS
• Regulates voltage over a broad operating current and temperature range
• Selection from 2.4 to 200 V
• Standard voltage tolerances are plus/minus 5% with B suffix identification and 10 % with A suffix
• Tight tolerances available in plus or minus 2% or 1% with C or D suffix respectively
• Nonsensitive to ESD per MIL-STD-750 Method 1020
• Minimal capacitance (see Figure 3)
• Inherently radiation hard as described in Microsemi MicroNote 050