1N5518BUR-1 thru 1N5546BUR-1 Available on commerc.
Microsemi
1N5540BUR-1 - Low Voltage Avalanche 500mW Zener Diodes
1N5518BUR-1 thru 1N5546BUR-1 Available on commercial versions Low Voltage Avalanche 500 mW Zener Diodes Qualified per MIL-PRF-19500/437 DESCRIPTION.
VPT
1N5540BUR-1 - 500mW Zener Diode
1N5518BUR-1 thru 1N5546BUR-1 Zener Diode Series, 500 mW Features • Available in JAN, JANTX and JANTXV PER MIL-PRF-19500/437 • Low Reverse Leakage Char.