1N399B

Features:

   JEDEC registered 1N2970 thru 1N3015B and 1N3993 thru 1N4000A 
   Internal solder bond construction 
   Hermetically sealed (welded) 
   Zener Voltage 3.9V to 200V. 
   Also available in JAN, JANTX, and JANTXV qualifications per MIL-PRF-19500/124 by adding the JAN, JANTX, or JANTXV prefixes to part numbers for desired level of screening;  (e.g. JANTX1N2970B, JANTXV1N3996A, etc. 
   Standard polarity is anode to case (stud) for 1N2970 thru 1N3015B and cathode to case for 1N3993 thru 1N4000A  
   Reverse polarity is cathode to case for 1N2970 thru 1N3015B and anode to case for 1N3993 thru 1N4000A by designating R suffix, e.g. 1N2970RB, 1N3993RA, etc.  
  Consult factory for surface mount equivalents


Application

  Regulates voltage over a broad operating  current and temperature range 
  Standard voltage tolerances are +/- 5% with B suffix, +/-10% with an A suffix, and +/-20% with no suffix     
  Consult factory for +/-2% or +/-1% voltage tolerance with a C or D suffix respectively 
  Reverse polarity available  
  Nonsensitive to ESD per MIL-STD-750 Method 1020 
  Inherently radiation hard as described in Microsemi MicroNote 050 
 


Description

These high power 10 W Zener diodes 1N399B represented by the JEDEC registered 1N2970 thru 1N3015B and 1N3993 thru 1N4000A series provide voltage regulation in a selection over a 3.9 V to 200 V broad range of voltages.  They may be operated up to 10 W with adequate mounting and heat sinking with their low thermal resistance.  These Zeners 1N399B are also available in JAN, JANTX, JANTXV military qualifications.  Microsemi also offers numerous other Zener products to meet higher and lower power applications.