1N746 thru 1N759A, e3 and
1N4370 thru 1N4372A, e3 DO-7
Silicon 500 mW Zener Diodes
S C O T T S D A L E D I V I S I O N
DESCRIPTION
APPEARANCE
DO-7
The popular 1N746 thru 1N759A 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. The DO-7 packaging option offers a “straight-through”
soldered internal connection with a larger active die element than otherwise
provided in the smaller DO-35 package when needed. It is also available
as a RoHS Compliant option by adding an “e3” suffix. Microsemi also
offers numerous other Zener products to meet higher and lower power
applications.
(DO-204AA)
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
• JEDEC registered 1N746 thru 1N759A series
• Internally solder bonded
• 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.
•
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, 10 % with no suffix identification
•
Tight tolerances available in plus or minus 2% or 1%
with C or D suffix respectively
• RoHS Compliant devices available by adding “e3” suffix
• Surface mount equivalents in DO-213AA also available
as MLL1N746 thru MLL759A (consult factory for other
surface mount options)
•
•
•
•
Flexible axial-lead mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method 1020
Capacitance also specified (see Figure 3)
• Smaller DO-35 glass body axial-leaded Zener
Inherently radiation hard as described in Microsemi
MicroNote 050
equivalents are also available
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
•
•
Operating and Storage temperature: -65ºC to +175ºC
•
CASE: Hermetically sealed axial-lead glass DO-7
(DO-204AA) package
Thermal Resistance: 300 ºC/W junction to lead at 3/8
(10 mm) lead length from body, or 360ºC/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 < 25oC 3/8 inch
(10 mm) from body or 0.417 W at TA < 25ºC when
mounted on FR4 PC board as described for thermal
resistance above (also see Figure1)
•
TERMINALS: Tin-Lead or RoHS Compliant
annealed matte-Tin plating 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
“TR” suffix to part number)
•
•
Forward voltage @200 mA: 1.1 volts
Solder Temperatures: 260 ºC for 10 s (max)
•
•
WEIGHT: 0.2 grams
See package dimensions on last page
Copyright © 2005
10-18-2005 REV C
Microsemi
Page 1
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503