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1N746 Datasheet, PDF (1/3 Pages) Jinan Gude Electronic Device – 500mW SILICON ZENER DIODES | |||
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SCOTTSDALE DIVISION
1N746 thru 1N759A, -1 and
1N4370 thru 1N4372A, -1 DO-35
Silicon 500 mW Zener Diodes
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 â-1â 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.
IMPORTANT: For the most current data, consult MICROSEMIâs website: http://www.microsemi.com
APPEARANCE
DO-35
(DO-204AH)
FEATURES
⢠JEDEC registered 1N746 thru 1N759A and 1N4370
thru 1N4372A series
⢠Internal metallurgical bond option available by adding
a â-1â suffix
⢠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 â1â suffix; (e.g.
JANTX1N751A-1, JANTXV1N758C-1, etc.)
⢠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)
⢠Commercial Surface Mount equivalents available as
MLL746 to MLL759A and MLL4370 to MLL4372A
including the â-1â suffix in the DO-213AA MELF style
package (consult factory for others)
⢠DO-7 glass body axial-leaded Zener equivalents are
also available
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
⢠Operating and Storage temperature: -65ºC to +175ºC
⢠Thermal Resistance: 250 ºC/W junction to lead at 3/8
(10 mm) lead length from body, or 310ºC/W junction to
ambient when mounted on FR4 PC board (1 oz Cu)
with 4 mm2 copper pads and track width 1 mm, length
25 mm
⢠Steady-State Power: 0.5 watts at TL < 50oC 3/8 inch
(10 mm) from body or 0.48 W at TA < 25ºC when
mounted on FR4 PC board as described for thermal
resistance above (also see Figure1)
⢠Forward voltage @200 mA: 1.1 volts
⢠Solder Temperatures: 260 ºC for 10 s (max)
MECHANICAL AND PACKAGING
⢠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
âTRâ suffix to part number)
⢠WEIGHT: 0.2 grams
⢠See package dimensions on last page
Copyright  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
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