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1N5945UR-1TR

Description
Zener Diode, 68V V(Z), 20%, 1.25W, Silicon, Unidirectional, DO-213AB, HERMETIC SEALED, GLASS, MELF-2
CategoryDiscrete semiconductor    diode   
File Size377KB,3 Pages
ManufacturerMicrosemi
Websitehttps://www.microsemi.com
Download Datasheet Parametric View All

1N5945UR-1TR Overview

Zener Diode, 68V V(Z), 20%, 1.25W, Silicon, Unidirectional, DO-213AB, HERMETIC SEALED, GLASS, MELF-2

1N5945UR-1TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeDO-213AB
package instructionHERMETIC SEALED, GLASS, MELF-2
Contacts2
Reach Compliance Codeunknow
ECCN codeEAR99
Other featuresMETALLURGICALLY BONDED, HIGH RELIABILITY
Shell connectionISOLATED
ConfigurationSINGLE
Diode component materialsSILICON
Diode typeZENER DIODE
Maximum dynamic impedance120 Ω
JEDEC-95 codeDO-213AB
JESD-30 codeO-LELF-R2
JESD-609 codee0
Humidity sensitivity level1
Number of components1
Number of terminals2
Maximum operating temperature175 °C
Package body materialGLASS
Package shapeROUND
Package formLONG FORM
Peak Reflow Temperature (Celsius)NOT SPECIFIED
polarityUNIDIRECTIONAL
Maximum power dissipation1.25 W
Certification statusNot Qualified
Nominal reference voltage68 V
surface mountYES
technologyZENER
Terminal surfaceTIN LEAD
Terminal formWRAP AROUND
Terminal locationEND
Maximum time at peak reflow temperatureNOT SPECIFIED
Maximum voltage tolerance20%
Working test current5.5 mA
Base Number Matches1
1N5913BUR-1 thru 1N5956BUR-1
(or MLL5913B thru MLL5956B)
SCOTTSDALE DIVISION
METALLURGICALLY BONDED GLASS
SURFACE MOUNT 1.5 WATT ZENERS
DESCRIPTION
This surface mountable 1.5 W Zener diode series in the JEDEC DO-213AB
package is similar in electrical features to the JEDEC registered 1N5913B
thru 1N5956B axial-leaded package for 3.3 to 200 V. It is an ideal selection
for applications of high density and low parasitic requirements. Due to its
glass hermetic qualities and metallurgically enhanced internal contacts, it
may also be used for high reliability applications when required by a source
control drawing (SCD) or screening in accordance with MIL-PRF-19500 as
described in Features below. Zener voltage tolerance options are identified
by part number suffix including tight-tolerance. A variety of other Zener
product offerings and packages are available by Microsemi to meet higher
or lower power and test current applications.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
APPEARANCE
WWW .
Microsemi
.C
OM
DO-213AB
FEATURES
Electrically similar to the JEDEC registered 1N5913B
thru 1N5956B zener series
Zener voltages available 3.3V to 200V
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, e.g. MX1N5913BUR-1,
MV1N5923CUR-1, MSP1N5952DUR-1, etc.
Surface mount equivalents also available as
SMBJ5913B to SMBJ5956B, SMBG5913B to
SMBG5956B, or SMAJ5913B to SMAJ5956B (see
separate data sheets)
Plastic body axial-leaded Zener equivalents are also
available as 1N5913BP to 1N5956BP (see separate
data sheet)
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating current
and temperature range
Wide selection from 3.3 to 200 V
Leadless package for surface mounting
Ideal for high density mounting
Metallurgically enhanced internal contact design for
greater reliability and lower thermal resistance
Standard voltage tolerances are +/- 5% with B suffix
and 10 % with A suffix identification
Tight tolerances available in plus or minus 2% or
1% with C or D suffix respectively
Nonsensitive to ESD
Hermetically sealed glass package
Specified capacitance (see Figure 2)
Inherently radiation hard as described in Microsemi
MicroNote 050
MAXIMUM RATINGS
Power dissipation at 25
º
C: 1.5 watts (also see
derating in Figure 1).
Operating and Storage temperature: -65
º
C to +175
º
C
Thermal Resistance: 40
º
C/W junction to end cap, or
120
º
C/W junction to ambient when mounted on FR4
PC board (1 oz Cu) with recommended footprint (see
last page)
Steady-State Power: 1.50 watts at T
EC
< 115
o
C, or
1.25 watts at T
A
= 25
º
C when mounted on FR4 PC
board and recommended footprint as described for
thermal resistance (also see Figure 1)
Forward voltage @200 mA: 1.2 volts (maximum)
Solder Temperatures: 260
º
C for 10 s (max)
MECHANICAL AND PACKAGING
CASE: Hermetically sealed DO-213AB glass MELF
package
TERMINALS: End caps, tin-lead plated solderable
per MIL-STD-750, method 2026
POLARITY: Cathode indicated by band. Diode to
be operated with the banded end positive with
respect to the opposite end for Zener regulation
MARKING: Cathode band only
TAPE & REEL optional: Standard per EIA-481-B
with 12 mm tape, 1500 per 7 inch reel or 5000 per
13 inch reel (add “TR” suffix to part number)
WEIGHT: 0.05 grams
See package dimensions on last page
1N5913BUR-1−1N5956BUR-1
Copyright
2002
11-05-2003 REV C
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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