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Microsemi IRE Division
1N821 thru 1N829A-1
Microsemi IRE Division
1N957B(-1) thru 1N992B(-1)
Microsemi IRE Division
Glass Zener Diodes - Military, MIL-PRF
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1N957B(-1) thru 1N992B(-1)

Silicon 500 mW Zener Diodes

Microsemi IRE Division

The 1N957B thru 1N992B series of 0.5 watt Zener Voltage Regulators provides a selection from 6.8 to 200 volts in standard 5% or 10% tolerances as well as tighter tolerances identified by different suffix letters on the part number. These glass axial-leaded DO-35 Zeners are also optionally available with an internal-metallurgical-bond option by adding a “-1” suffix as well as RoHS Compliant by adding an “e3” suffix.

  • Regulates voltage over a broad operating current and temperature range
  • Flexible axial-lead mounting terminals
  • Current - Reverse Leakage @ Vr:5µA
  • Current Coupled to Voltage - Forward (Vf) (Max) @ If:200mA
  • Impedance (Max) (Zzt):16 Ohms
  • Mounting Type:Through Hole
  • Operating Temperature:-65°C ~ 175°C
  • Package / Case:DO-204AA, DO-7, Axial
  • Power - Max:500mW
  • Supplier Device Package:DO-7
  • Tolerance:±5%
  • Voltage - Forward (Vf) (Max) @ If:1.1V
  • Voltage - Zener (Nom) (Vz):15V
  • Voltage Coupled to Current - Reverse Leakage @ Vr:11.4V