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SCOTTSD A L E DIVISION
IN4678UR-1 thru 1N4717UR-1
(or MLL4678-1 thru MLL4717UR-1)
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1N4
099
UR-1
–1N413
5UR-1
1N4
614
UR-1
–
1N4
627
UR-1
METALLURGICALLY BONDED GLASS
SURFACE MOUNT 0.5 WATT ZENERS
DESCRIPTION
APPEARANCE
The 1N4678UR-1 thru 1N4717UR-1 series of 0.5 watt glass surface mount
DO-213AA Zener voltage regulators provides a selection from 1.8 to 43 volts
in standard 5% tolerances as well as tighter tolerances with a very low test
current of 50 A.
These have an internal-metallurgical-bond option as
identified with the “-1” suffix. This type of internally bonded Zener package
construction is also available with equivalent military screening as described
in the Features section.
Microsemi also offers numerous other Zener
DO-213AA
FEATURES
APPLICATIONS / BENEFITS
Surface mount equivalent to JEDEC registered 1N4678
thru 1N4717 series
Internal metallurgical bond with the “-1” suffix
Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, and JANS are
available by adding MQ, MX, MV, MSP respectively to
part numbers; (e.g. MX1N4678UR-1, MV1N4701UR-1,
MSP1N4709DUR-1, etc.)
Nonbonded types also available without the “-1” 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 1N4678 thru 1N4717 on separate data
sheets
Regulates voltage over a broad operating current and
temperature range
Extensive selection from 1.8 to 43 V
Standard voltage tolerances are plus/minus 5% with
no suffix
Tight tolerances available in plus or minus 2% or 1%
with additional C or D suffix respectively
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
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
Operating and Storage temperature: -65C to +175C
Thermal Resistance: 100 C/W junction to end cap, or
250
C/W junction to ambient when mounted on FR4 PC
board (1 oz Cu) with recommended footprint (see last
page Figure 1)
Steady-State Power: 0.5 watts at end cap temperature
TEC < 125
oC or at ambient TA < 50C when mounted on
FR4 PC board as described for thermal resistance
above (see Figure 2 for derating)
Forward voltage @100 mA: 1.5 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-481-1-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
2002
3-12-04 REV A