1N746 thru 1N759A, -1 and
1N4370 thru 1N4372A, -1 DO-35
Silicon 500 mW Zener Diodes
SCOTTSDALE DIVISION
DESCRIPTION
The popular 1N746 thru 1N759A and 1N4370 thru 1N4372A series of 0.5
watt Zener Voltage Regulators provides a selection from 2.4 to 12 volts in
standard 5% or 10% tolerances as well as tighter tolerances identified by
different suffix letters on the part number. These glass axial-leaded DO-35
Zeners are also available with an internal-metallurgical-bond option by
adding a 鈥?1鈥?suffix. These are also available in JAN, JANTX, and JANTXV
military qualifications.
Microsemi also offers numerous other Zener
products to meet higher and lower power applications.
For the most current data, consult
MICROSEMI鈥檚
website:
http://www.microsemi.com
APPEARANCE
WWW .
Microsemi
.C
OM
DO-35
(DO-204AH)
FEATURES
鈥?/div>
JEDEC registered 1N746 thru 1N759A and 1N4370
thru 1N4372A series
鈥?/div>
Internal metallurgical bond option available by adding
a 鈥?1鈥?suffix
鈥?/div>
Also available in JAN, JANTX, and JANTXV
qualifications per MIL-PRF-19500/127 by adding the
JAN, JANTX, or JANTXV prefixes to part numbers for
desired level of screening as well as 鈥?鈥?suffix; (e.g.
JANTX1N751A-1, JANTXV1N758C-1, etc.)
鈥?/div>
Military Surface Mount equivalents also available in
DO-213AA by adding a UR-1 suffix in addition to the
JAN, JANTX, and JANTXV prefix; e.g.
JANTX1N962BUR-1 (see separate data sheet)
鈥?/div>
Commercial Surface Mount equivalents available as
MLL746 to MLL759A and MLL4370 to MLL4372A
including the 鈥?1鈥?suffix in the DO-213AA MELF style
package (consult factory for others)
鈥?/div>
DO-7 glass body axial-leaded Zener equivalents are
also available
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating
current and temperature range
Selection from 2.4 to 12 V
Standard voltage tolerances are plus/minus 5%
with A suffix identification and 10 % with no suffix
Tight tolerances available in plus or minus 2%
or 1% with C or D suffix respectively
Flexible axial-lead mounting terminals
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
鈥?/div>
Operating and Storage temperature: -65
潞
C to +175
潞
C
鈥?/div>
Thermal Resistance: 250
潞
C/W junction to lead at 3/8
(10 mm) lead length from body, or 310
潞
C/W junction to
ambient when mounted on FR4 PC board (1 oz Cu)
with 4 mm
2
copper pads and track width 1 mm, length
25 mm
鈥?/div>
Steady-State Power: 0.5 watts at T
L
< 50
o
C 3/8 inch
(10 mm) from body or 0.48 W at T
A
< 25
潞
C when
mounted on FR4 PC board as described for thermal
resistance above (also see Figure1)
鈥?/div>
Forward voltage @200 mA: 1.1 volts
鈥?/div>
Solder Temperatures: 260
潞
C for 10 s (max)
MECHANICAL AND PACKAGING
鈥?/div>
鈥?/div>
鈥?/div>
CASE: Hermetically sealed axial-lead glass
DO-35 (DO-204AH) package
TERMINALS: Leads, 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: Part number
TAPE & REEL option: Standard per EIA-296 (add
鈥淭R鈥?suffix to part number)
WEIGHT: 0.2 grams
See package dimensions on last page
1N746 鈥?59A
1N4370 鈥?4372A (DO-35)
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Copyright
錚?/div>
2003
10-31-2003 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
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