TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http://www.microsemi.com
VOIDLESS-HERMETICALLY-SEALED 1.5
WATT GLASS ZENER DIODE
Qualified per MIL-PRF-19500/406
T4-LDS-0 18 3 Rev . 1 (1 0 16 8 6) Page 1 of 5
DEVICES LEVELS
1N4460 thru 1N4496 & C / D / US JAN
1N6485 thru 1N6491 & C / D / US JANTX
JANTXV
JANS
DESCRIPTION
DO-41
This Zener Voltage Regulator series is military qualified to MIL-PRF-19500/406 and is ideal
for high-reliability applications where a failure cannot be tolerated. These industry-
recognized 1.5 Watt Zener Voltage Regulators are hermetically sealed with voidless-glass
construction using an internal metallurgical bond. It includes Zener selections from 3.3 to 200
volts in standard 5% tolerances as well as tighter tolerances identified by different suffix
letters on the part number. They are also available in surface-mount packages (see separate
data sheet for 1N4460US thru 1N4496US and 1N6485US thru 1N6491US). Microsemi also
offers numerous other Zener products to meet higher and lower power ratings in both thru-
hole and surface mount packages.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
¾ Popular JEDEC registered series
¾ Voidless hermetically sealed glass package
¾ Extremely robust construction
¾ Triple-layer passivation
¾ Internal “Category I” Metallurgical bonds for 1N4462 thru 1N4496 and “Category III”
for 1N6485 thru 1N6491 as well as 1N4460 and 1N4461.
¾ JAN, JANTX, JANTXV, and JANS available per MIL-PRF-19500/406
¾ Surface mount equivalents also available in a square end-cap MELF configuration with
a “US” suffix (see separate data sheet for 1N4460US thru 1N4496US and 1N6485US
thru 1N6491US)
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http://www.microsemi.com
T4-LDS-0 18 3 Rev . 1 (1 0 16 8 6) Page 2 of 5
APPLICATIONS / BENEFITS
¾ Regulates voltage over a broad operating current and temperature range
¾ Extensive selection from 3.3 to 200V
¾ Standard voltage tolerances are plus/minus 5% with no suffix
¾ Tight tolerances available in plus or minus 2% or 1% with C or D suffix respectively
¾ Flexible axial-lead mounting terminals
¾ Nonsensitive to ESD per MIL-STD-750 Method 1020
¾ Inherently radiation hard as described in Microsemi MicroNote 050
MAXIMUM RATINGS
¾ Operating Temperature: -65oC to +175oC.
¾ Storage Temperature: -65oC to +200oC.
¾ Power Dissipation: 1.5 Watts @ TA = 25oC
¾ Thermal Resistance: 42oC/W junction to lead at 3/8 inch (10 mm) from body
¾ Thermal Impedance: 4.5oC/W (1N4462 thru 1N4496) and 7.5oC/W (1N6485 thru 1N6491 as well as 1N4460
and 1N4461) at 10 ms
¾ Forward Voltage: 1.00 V at 200 mA and 1.5 V at 1.0 A
MECHANICAL AND PACKAGING
¾ CASE: Hermetically sealed voidless hard glass with Tungsten slugs
¾ TERMINATIONS: Axial-leads are Tin/Lead (Sn/Pb) over Copper
¾ MARKING: Body painted and part number, etc.
¾ POLARITY: Cathode indicated by band
¾ Tape & Reel option: Standard per EIA-296
¾ Weight: 340 mg
