1N5221UR thru 1N5281BUR, e3
(or MLL5221 thru MLL5281B, e3)
500 mW GLASS SURFACE MOUNT
ZENER DIODES
S C O T T S D A L E D I V I S I O N
DESCRIPTION
APPEARANCE
The 1N5221BUR thru 1N5281BUR series of 0.5 watt Zener Voltage
Regulators provides a surface mount equivalent to the popular JEDEC
registered 1N5221B to 1N5281B for 2.4 to 200 volts in standard 5%
tolerances as well as tighter tolerances identified by different suffix letters on
the part number. These are also available with an internal-metallurgical-
bond option by adding a “-1” suffix (see separate data sheet). Microsemi
also offers numerous other Zener products to meet higher and lower power
applications.
DO-213AA
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
•
Surface mount equivalents to the JEDEC registered
1N5221 thru 1N5281B series
•
Regulates voltage over a broad operating
current and temperature range
•
•
•
Hermetically sealed surface mount package
•
•
Selection from 2.4 to 200 V
RoHS Compliant devices available by adding “e3” suffix
Standard voltage tolerances are plus/minus 5%
with B suffix identification and 10 % with A suffix
Tight tolerances available in plus or minus 2%
or 1% with C or D suffix respectively
Internal metallurgical bond option available by adding a
“-1” suffix (see separate data sheet for same part
numbers with “-1” suffix)
•
•
DO-7 or DO-35 glass body axial-leaded Zener
equivalents also available per JEDEC registration (see
separate data sheet for part numbers 1N5221 thru
1N5281B series
•
•
•
Nonsensitive to ESD per MIL-STD-750 Method 1020
Minimal capacitance (see Figure 3)
Inherently radiation hard as described in Microsemi
MicroNote 050
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
•
•
Operating and Storage temperature: -65ºC to +175ºC
•
CASE: Hermetically sealed glass DO-213AA
(SOD80 or MLL34) MELF style package
Thermal Resistance: 150ºC/W junction to end cap
and 300ºC/W junction to ambient when mounted on
FR4 PC board (1 oz Cu) with recommended footprint
(see last page)
•
FINISH: End caps Tin-Lead or RoHS Compliant
annealed matte-Tin plating solderable per MIL-STD-
750, method 2026
•
Steady-State Power: 0.5 watts at end cap
temperature TEC < 100oC or ambient temperature TA
< 25ºC when mounted on FR4 PC board as described
for thermal resistance above (see Figure 2 for
derating)
•
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
•
•
Forward voltage @200 mA: 1.1 volts (maximum)
Solder Temperatures: 260 ºC for 10 seconds (max)
•
•
See package dimensions on last page
Copyright © 2005
8-29-2005 REV B
Microsemi
Page 1
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