1N4678UR thru 1N4717UR
(or MLL4678 thru MLL4717)
GLASS SURFACE MOUNT 0.5 WATT
ZENERS
S C O T T S D A L E D I V I S I O N
DESCRIPTION
APPEARANCE
The 1N4678UR thru 1N4717UR series of 0.5 watt glass surface mount
DO-213AA Zener voltage regulators provides selection from 1.8 to 43 volts
in standard 5% tolerances as well as tighter tolerances at a very low test
current of 50 µA. These are also available with an internal-metallurgical-
bond option by adding a “-1” suffix (see separate data sheet) including
military upgrade screening options. Microsemi also offers numerous other
Zener products to meet higher and lower power applications.
DO-213AA
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
• Surface mount equivalent to JEDEC registered
•
Regulates voltage over a broad operating current and
1N4678 thru 1N4717 series
temperature range
• Internal metallurgical bond option available by
adding a “-1” suffix (see separate data sheet for
same part numbers with “-1” suffix)
• DO-7 or DO-35 glass body axial-leaded Zener
equivalents also available per JEDEC registration
(see separate data sheet for part numbers 1N4678
thru 1N4717 series
•
•
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
MECHANICAL AND PACKAGING
• Operating and Storage temperature: -65ºC to
• CASE: Hermetically sealed glass DO-213AA (SOD80
+175ºC
or MLL34) MELF style package
• Thermal Resistance: 150ºC/W junction to end cap
and 300ºC/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 TEC < 100oC or ambient temperature TA
< 25ºC when mounted on FR4 PC board as
described for thermal resistance above (see Figure
2 for derating)
• 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
• Forward voltage @100 mA: 1.5 volts (max)
• Solder Temperatures: 260 ºC for 10 s (max)
Copyright 2002
3-12-04 REV A
Microsemi
Page 1
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503