1N821 thru 1N829A-1 DO-7
6.2 & 6.55 Volt Temperature Compensated
Zener Reference Diodes
S C O T T S D A L E D I V I S I O N
DESCRIPTION
APPEARANCE
The popular 1N821 thru 1N829 series of Zero-TC Reference Diodes
provides a selection of both 6.2 V and 6.55 V nominal voltages and
temperature coefficients to as low as 0.0005%/oC for minimal voltage
change with temperature when operated at 7.5 mA. These glass axial-
leaded DO-7 reference diodes are also available in JAN, JANTX, JANTXV,
and JANS military qualifications. Microsemi also offers numerous other
Zener Reference Diode products for a variety of other voltages up to 200 V.
DO-7
(DO-204AA)
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
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JEDEC registered 1N821 thru 1N829 series
Internal metallurgical bonds
Double anode option with 1N822 and 1N824 selection
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Provides minimal voltage changes over a broad
temperature range
For instrumentation and other circuit designs
requiring a stable voltage reference
Reference voltage selection of 6.2 V & 6.55 V +/-5%
Maximum temperature coefficient selections
with further tight tolerance options at nominal of 6.35 V
available from 0.01%/ºC to 0.0005%/ºC
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1N821, 823, 825, 827 and 829 also have military
qualification to MIL-PRF-19500/159 up to the JANS
level by adding JAN, JANTX, JANTXV, or JANS
prefixes to part numbers as well as the “-1” suffix, e.g.
JANTX1N829-1, etc.
Radiation Hardened devices available by changing
“1N” prefix to “RH”, e.g. RH827, RH 829, RH829A,
etc. Also consult factory for “RH” data sheet brochure
Military surface mount equivalents also available in
DO-213AA with UR-1 suffix and JAN, JANTX, or
JANTXV prefix, e.g. JANTX1N829UR-1 (see separate
data sheet)
Tight voltage tolerances with nominal reference
voltages of 6.35 V available by adding tolerance
1%, 2%, 3%, etc. after the part number for
identification e.g. 1N827-2%, 1N829A -1%, 1N829-
1-1%, etc.
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Flexible axial-lead mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method
1020
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Also available in smaller axial-leaded DO-35 package
(see separate data sheet)
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
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Operating & StorageTemperature: -65oC to +175oC
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CASE: Hermetically sealed glass case with DO-7
DC Power Dissipation: 500 mW @ TL = 25oC and
maximum current IZM of 70 mA. NOTE: For optimum
voltage-temperature stability, IZ = 7.5 mA (less than 50
mW in dissipated power)
(DO-204AA) package
TERMINALS: Tin-lead plated and solderable per
MIL-STD-750, Method 2026
MARKING: Part number and cathode band (except
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Solder temperatures: 260 oC for 10 s (maximum)
double anode 1N822 and 1N824)
POLARITY: Reference diode to be operated with
the banded end positive with respect to the
opposite end
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TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
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WEIGHT: 0.2 grams.
See package dimensions on last page
Copyright 2003
Microsemi
Page 1
10-27-2003 REV C
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503