1N4954

Features:

Popular JEDEC registered series Voidless hermetically sealed glass package

Extremelyroust constructionriple-larpassivation

Internal "Category I"Metallurgcal bonds for 1N4954 thru 1N4996, and "Category III"for 1N6632 thru 1N6637as wellas 1N5968thru
1N5959 JAN, JANTX, JANTXV, and JANS avaiabe per MIL-PRF-19500/356

Surface mount equvalents alsoavailable inasquare end-cap MELFconfiguration with"US" suffix (see separate data sheet for 1N4954US thru 1N4996US,1N6632US thru 1N6637US and 1N5968US thru1N5969US




Application

• Regulates voltage over a broad operating current and temperature range • Extensive selection from 3.3 to 390 V
• Standard voltage tolerances are plus/minus 5% with no suffix
• Tght tolerancesavailable in pus or minus 2%or 1% whC or D suffixrespectively
• Fexibleaxa-lead mounting terminas
• Nonsensitive to ESD per MIL-STD-750 Method 1020• Inherentlyradiation hrd as escribed in MicMicroNote 050

Specifications

•Operatin g Temperature: -65oC to +175oC.
• Storage Temperature: -65oC to+175oC.
• Power Dissipation: 5 Watts@ TA= 25oC
• Thermal Resistance: 22oC/Wjunction to leadat 3/8 inch (10 mm) from bodyfor 1N4954 thru 1N4996 and 30oC/Wfor 1N6632 thru 1N6637,
1N5968 thru 1N5969
• Thermal Impedance at 10ms: 1.8oC/Wfor 1N4954 thru 1N4996, and 3.0oC/Wfor both the 1N6632 thru 1N6637 & 1N5968 thru 1N5969
• Forward Voltage: 1.50 V at 1.0 A




Description

This Zener Voltage Reguator 1N4954 series is military qualified to MIL-PRF-19500/356 and is ideal for high-reliability applications wherea failure cannot be to erated. These industry-recognized 5 Watt Zener Voltage Regulators 1N4954 are hermetically sealed with voidless-glass cnstruction using an internal metallurgical bond. It includes Zener selections from 3.3 to 390 volts in standard 5% tolerances as wel as tighter toces identified bydifferent suffix letters on cuo the partnumber.They are aso avaable in surface-mount packages (see sparate data sheet for 1N4954US thru1N4996US, 1N5968US thru 1N5969US, and 1N6632 US thru 1N6637US) Microsemi also offers numerous other Zener products to meet higher and ower power ratings in both thru-hole and surface mount packages.