IN5518BUR-1 thru 1N5546BUR-1
(or MLL5518B-1 thru MLL5546B-1)
SCOTTSDALE DIVISION
Low Voltage Surface Mount
500 mW Avalanche Diodes
DESCRIPTION
The 1N5518BUR-1 thru 1N5546BUR-1 series of 0.5 watt glass surface
mount Zener voltage regulators provides a selection from 3.3 to 33 volts in
standard 5% tolerances as well as tighter tolerances identified by different
suffix letters on the part number. These have an internal-metallurgical-bond
option as identified by the 鈥溾€?鈥?suffix. This internally bonded Zener package
construction is also in JAN, JANTX, and JANTXV military qualifications.
Microsemi also offers numerous other Zener products to meet higher and
lower power applications.
APPEARANCE
WWW .
Microsemi
.C
OM
DO-213AA
IMPORTANT:
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
FEATURES
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Surface mount equivalent to JEDEC registered
1N5518 thru 1N5546 series
Internal metallurgical bond with the 鈥?1鈥?suffix
Also available in JAN, JANTX, and JANTXV
qualifications per MIL-PRF-19500/437 by adding
the JAN, JANTX, or JANTXV prefixes to part
numbers for desired level of screening; (e.g.
JANTX1N4099UR-1, JANTXV1N4109CUR-1, etc.)
Nonbonded types also available without the 鈥?1鈥?/div>
suffix for both the axial and surface mount
packages
DO-7 or DO-35 glass body axial-leaded Zener
equivalents also available per JEDEC registration
with part numbers 1N5518 thru 1N5546 on
separate data sheets
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APPLICATIONS / BENEFITS
Regulates voltage over a broad operating current
and temperature range
Extensive selection from 3.3 to 33 V
Standard voltage tolerances are plus/minus 5% with
a 鈥淏鈥?suffix, e.g. 1N5518BUR-1, etc.
Tight tolerances available in plus or minus 2% or 1%
with C or D suffix respectively, e.g. 1N5518CUR-1,
1N5518DUR-1, etc.
Hermetically sealed surface mount package
Nonsensitive to ESD per MIL-STD-750 Method 1020
Minimal capacitance (see Figure 3)
Inherently radiation hard as described in Microsemi
MicroNote 050
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MAXIMUM RATINGS
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Operating and Storage temperature: -65
潞
C to
+175
潞
C
Thermal Resistance: 100
潞
C/W junction to end cap,
or 250
潞
C/W junction to ambient when mounted on
FR4 PC board (1 oz Cu) with recommended
footprint (see last page)
Steady-State Power: 0.5 watts at end cap
temperature T
EC
< 125
o
C or at ambient T
A
< 50
潞
C
when mounted on FR4 PC board as described for
thermal resistance above (see Figure 2 for
derating)
Forward voltage @200 mA: 1.1 volts
Solder Temperatures: 260
潞
C for 10 s (max)
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MECHANICAL AND PACKAGING
CASE: Hermetically sealed glass DO-213AA
(SOD80 or MLL34) MELF style package
TERMINALS: End caps tin-lead plated solderable
per 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
MARKING: cathode band only
TAPE & REEL option: Standard per EIA-481-1-A
with 12 mm tape, 2000 per 7 inch reel or 5000 per
13 inch reel (add 鈥淭R鈥?suffix to part number)
WEIGHT: 0.04 grams
See package dimensions on last page
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1N5518BUR 鈥?1N5546BUR
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Copyright
錚?/div>
2003
10-31-2003 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
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