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1N4679UR/TR

Description
Zener Diode, 2V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-213AA, HERMETIC SEALED, GLASS, SOD-80, MELF-2
CategoryDiscrete semiconductor    diode   
File Size340KB,3 Pages
ManufacturerMicrosemi
Websitehttps://www.microsemi.com
Download Datasheet Parametric View All

1N4679UR/TR Overview

Zener Diode, 2V V(Z), 5%, 0.5W, Silicon, Unidirectional, DO-213AA, HERMETIC SEALED, GLASS, SOD-80, MELF-2

1N4679UR/TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
package instructionO-LELF-R2
Reach Compliance Codecompli
Shell connectionISOLATED
ConfigurationSINGLE
Diode component materialsSILICON
Diode typeZENER DIODE
JEDEC-95 codeDO-213AA
JESD-30 codeO-LELF-R2
JESD-609 codee0
Humidity sensitivity level1
Number of components1
Number of terminals2
Package body materialGLASS
Package shapeROUND
Package formLONG FORM
Peak Reflow Temperature (Celsius)NOT SPECIFIED
polarityUNIDIRECTIONAL
Maximum power dissipation0.5 W
Certification statusNot Qualified
Nominal reference voltage2 V
surface mountYES
technologyZENER
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formWRAP AROUND
Terminal locationEND
Maximum time at peak reflow temperatureNOT SPECIFIED
Maximum voltage tolerance5%
Working test current0.05 mA
Base Number Matches1
IN4678UR-1 thru 1N4717UR-1
(or MLL4678-1 thru MLL4717UR-1)
SCOTTSDALE DIVISION
METALLURGICALLY BONDED GLASS
SURFACE MOUNT 0.5 WATT ZENERS
WWW .
Microsemi
.C
OM
DESCRIPTION
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 µA. 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
products to meet higher and lower power applications.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
APPEARANCE
DO-213AA
FEATURES
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
APPLICATIONS / BENEFITS
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
Operating and Storage temperature: -65
º
C to +175
º
C
Thermal Resistance: 100
º
C/W junction to end cap, or
250
º
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
T
EC
< 125
o
C or at ambient T
A
< 50
º
C 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
º
C for 10 s (max)
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-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
1N4099UR-1–1N4135UR-1
1N4614UR-1 – 1N4627UR-1
Copyright
2002
3-12-04 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
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