
METALLURGICALLY BONDED GLASS
SURFACE MOUNT 500 mW Zener Diodes
SCOTTSD A L E DIVISION
1N5985UR-1 thru 1N6031BUR-1
( or MLL5985-1 thru MLL6031B-1)
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DESCRIPTION
APPEARANCE
The popular 1N5985UR-1 thru 1N6031BUR-1 (or MLL5985-1 thru MLL6031B-1)
series of 0.5 watt Zener Voltage Regulators provides selection from 2.4 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-surface-mount DO-
213AA Zeners are also available in various military screening levels by adding a
prefix identifier as described in the Features section. Microsemi also offers
numerous other Zener products to meet higher and lower power applications.
DO-213AA
FEATURES
APPLICATIONS / BENEFITS
Surface mount equivalent to JEDEC registered 1N5985
to 1N6031
Similar to operating current conditions of the BZV55
Internal metallurgical bonds
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 with “-1” suffix.
Axial-leaded equivalents available as 1N5985 to
1N6031 in the DO-35 package including “-1” suffix
options (consult factory for others)
Regulates voltage over a broad operating current
and temperature range
Extensive selection from 2.4 to 200 V
Standard voltage tolerances are plus/minus 5% with
B suffix, 10 % with A suffix identification
Tight tolerances available in plus or minus 2% or
1% with C or D suffix respectively
Nonsensitive to ESD (MIL-STD-750 Method 1020)
Minimal capacitance (see Figure 2)
Inherently radiation hard as described in Microsemi
MicroNote 050
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
Operating and Storage temperature: -65C to +175C
Thermal Resistance: 100 C/W junction to end cap and
250
C/W for 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
temperatures TEC < 125
oC or 0.5 watts at ambient TA <
50
C when mounted on FR4 PC board as described for
thermal resistance (also see Figure 1)
Forward voltage @200 mA: 1.1 volts
Solder Temperatures: 260 C for 10 s (max)
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-B
with 12 mm tape, 2000 per 7 inch reel or 5000 per
13 inch reel (add “TR” suffix to part number)
WEIGHT: 0.04 grams
See package dimensions on last page
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright
2003
11-05-2003 REV 0