6.2 & 6.55 Volt Temperature Compensated
Zener Reference Diodes
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright
2003
10-27-2003 REV C
WWW.
Microsemi
. COM
SCOTTSDALE DIVISION
1N821 thru 1N829A-1 DO-7
1N821—1N829A-1
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%/
o
C 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.
IMPORTANT: For the most current data, consult
MICROSEMI’s
website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
• JEDEC registered 1N821 thru 1N829 series
• Internal metallurgical bonds
• Double anode option with 1N822 and 1N824 selection
• Reference voltage selection of 6.2 V & 6.55 V +/-5%
with further tight tolerance options at nominal of 6.35 V
• 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)
• Also available in smaller axial-leaded DO-35 package
(see separate data sheet)
• Provides minimal voltage changes over a broad
temperature range
• For instrumentation and other circuit designs
requiring a stable voltage reference
• Maximum temperature coefficient selections
available from 0.01%/ºC to 0.0005%/ºC
• 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.
• Flexible axial-lead mounting terminals
• Nonsensitive to ESD per MIL-STD-750 Method
1020
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
• Operating & StorageTemperature: -65
o
C to +175
o
C
• DC Power Dissipation: 500 mW @ T
L
= 25
o
C and
maximum current I
ZM
of 70 mA. NOTE: For optimum
voltage-temperature stability, I
Z
= 7.5 mA (less than 50
mW in dissipated power)
• Solder temperatures: 260
o
C for 10 s (maximum)
• CASE: Hermetically sealed glass case with DO-7
(DO-204AA) package
• TERMINALS: Tin-lead plated and solderable per
MIL-STD-750, Method 2026
• MARKING: Part number and cathode band (except
double anode 1N822 and 1N824)
• POLARITY: Reference diode to be operated with
the banded end positive with respect to the
opposite end
• TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
• WEIGHT: 0.2 grams.
• See package dimensions on last page
DO-7
(DO-204AA)
