1N3343A Datasheet, PDF (1/3 Pages) Microsemi Corporation – 50 WATT ZENER DIODES

SCOTTSDALE DIVISION
1N3305 thru 1N3350B
and 1N4549B thru 1N4556B
50 WATT ZENER DIODES
DESCRIPTION
These high power 50 W Zener diodes represented by the JEDEC
registered 1N3305 thru 1N3350B and 1N4549 thru 1N4556B 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 50 W with adequate mounting and
heat sinking with their low thermal resistance. These Zeners are also
available in JAN, JANTX, JANTXV military qualifications. Microsemi also
offers numerous other Zener products to meet higher and lower power
applications.
APPEARANCE
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
DO- 5
(DO-203AB)
FEATURES
• JEDEC registered 1N3305 thru 1N3350B and
1N4549 thru 1N4556B
• Internal solder bond construction
• Hermetically sealed (welded)
• Zener Voltage 3.9V to 200V.
• Also available in JAN, JANTX, and JANTXV
qualifications per MIL-PRF-19500/358 by adding
the JAN, JANTX, or JANTXV prefixes to part
numbers for desired level of screening; (e.g.
JANTX1N3305B, JANTXV1N3318B, etc.
• Standard polarity is anode to case
• Reverse polarity with cathode to case by
designating R suffix in part number, e.g.
1N3305RB, etc.
• Consult factory for surface mount equivalents
APPLICATIONS / BENEFITS
• 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% 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
MAXIMUM RATINGS
• Junction & Storage Temperatures: -65^oC to +175^oC
• DC Power Dissipation: 50 watts at T_C < 75 ^oC
• Power Derating: 0.5 W/^oC above 75^oC
• Forward Voltage @ 10 A: 1.5 Volts
• THERMAL RESISTANCE: 2.0 ^oC/W maximum
junction to hexagonal base (1.5 ^oC/W typical)
• Solder temperatures: 260 ^oC for 10 s (max)
MECHANICAL AND PACKAGING
• CASE: Industry Standard DO-5 (DO-203AB),
11/16 inch hexagonal stud with 1/4-28 threads
welded hermetically sealed metal and glass
• FINISH: All external surfaces are corrosion
resistant and terminal solderable.
• POLARITY: Standard Polarity units are connected
anode to case. Reverse polarity (cathode to case)
is indicated by Suffix R in part number
• WEIGHT: 15 grams
• MOUNTING HARDWARE: Consult factory for
optional insulator, bushing, solder terminal,
washers and nut
• See package dimensions on last page
Copyright  2003
11-12-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, [phone], Fax: [phone]
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