3EZ3.9D5 thru 3EZ200D5
Silicon 3 Watt Zener Diode
S C O T T S D A L E D I V I S I O N
DESCRIPTION
APPEARANCE
The 3EZ3.9D5 thru 3EZ200D5 series of axial-leaded 3.0 watt Zeners
provides voltage regulation selections with 5% tolerances from 3.9 to 200
volts in a DO-41 plastic package size. Other Zener voltage tolerances are
also available by changing the suffix number to the tolerance desired such
as 1, 2 3, or 4 for tighter tolerances or 10 for wider tolerance. These plastic
encapsulated Zeners have moisture classification of Level 1 with no dry
pack required and are also available in various military equivalent
screening levels by adding a prefix identifier as also described in the
Features section. They may be operated at high maximum dc currents or
full power rating with adequate heat. Microsemi also offers numerous other
Zener products to meet higher and lower power applications.
DO-41 or
DO-204AL
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
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Zener voltage available 3.9 V to 200 V
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Regulates voltage over a broad operating current and
temperature range
Standard voltage tolerances are plus/minus 5%
with a 5 suffix and 10 % with 10 suffix
identification
3 W capability in relatively small DO-41 package size
when adequately heat sunk (see Figure 1)
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Tight tolerances available in plus or minus 4%,
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Wide selection from 3.9 to 200 V
3%, 2% or 1% with 4, 3, 2, or 1 suffix respectively
Flexible axial-lead mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method 1020
Withstands surge stresses
Options for screening in accordance with MIL-
PRF-19500 for JAN, JANTX, JANTXV, and JANS
are available by adding MQ, MX, MV, or MSP
prefixes respectively to part numbers.
Surface mount equivalents available as
SMBJ3EZ3.9D5 to SMBJ3EZ200D5 in the DO-
214AA package, or SMBG3EZ3.9D5 to
SMBG3EZ200D5 in the DO-215AA package
High specified maximum current (IZM) when
adequately heat sunk
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Moisture classification is Level 1 per IPC/JEDEC
J-STD-020B with no dry pack required
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
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Power dissipation at 25ºC: 3.0 watts (also see
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CASE: Void-free transfer molded thermosetting
epoxy body meeting UL94V-0
derating in Figure 1).
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Operating and Storage temperature: -65ºC to +150ºC
TERMINALS: Leads, tin-lead plated solderable per
Thermal Resistance: 40 ºC/W junction to lead at 3/8
(10 mm) lead length from body, or 100ºC/W junction
to ambient when mounted on FR4 PC board (1oz Cu)
with 4 mm2 copper pads and track width 1 mm, length
25 mm
MIL-STD-750, method 2026
POLARITY: Cathode indicated by band where diode
is to be operated with the banded end positive with
respect to the opposite end for Zener regulation
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MARKING: Part number
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Steady-State Power: 3 watts at TL < 30oC 3/8 inch
(10 mm) from body, or 1.25 watts at TA = 25ºC when
mounted on FR4 PC described for thermal resistance
(also see Figure 1)
TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
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WEIGHT: 0.4 grams
See package dimensions on last page
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Forward voltage @200 mA: 1.2 volts (maximum)
Solder Temperatures: 260 ºC for 10 s (max)
Copyright 2003
Microsemi
Page 1
7-21-2003 REV A
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503