1N821-1 – 1N829A-1
Available on
commercial
versions
6.2 & 6.55 Volt Zener Reference Diodes
Qualified per MIL-PRF-19500/159
*Qualified Levels:
JAN, JANTX,
JANTXV and JANS
(available on some part
numbers)
DESCRIPTION
The popular 1N821-1 – 1N829A-1 series of temperature compensated reference diodes
provides both 6.2 V and 6.55 V nominal voltages and temperature coefficients as low as
0.0005 %/oC at a Zener test current of 7.5 mA. These DO-35 packaged (glass, axial leaded)
reference diodes are optionally available as RoHS compliant. This type of bonded Zener
package construction is also available in JAN, JANTX, JANTXV and JANS military
qualifications where the RoHS compliant “e3” is not an option. Microsemi also offers other
Zener Reference Diode products for a variety of voltages up to 200 V.
Important: For the latest information, visit our website http://www.microsemi.com.
FEATURES
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JEDEC registered 1N821 – 1N829 series.
Zener impedance values of 10 ohms and 15 ohms are available.
Reference voltage selection of 6.2 V & 6.55 V +/-5% with further tight tolerance options on
commercial at lower voltage. (Excludes 1N826 and 1N828.)
Temperature compensated.
Internal metallurgical bond.
Double plug construction.
*JAN, JANTX, JANTXV and JANS qualification per MIL-PRF-19500/159 available on 1N821-1, 8231, 825-1, 827-1 and 829-1.
RoHS compliant versions available (commercial grade only).
DO-35 (DO-204AH)
Package
Also available in:
DO-213AA MELF
(surface mount)
1N821UR-1 – 1N829AUR-1
APPLICATIONS / BENEFITS
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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 reference voltage tolerances of 1%, 2%, 3%, etc, available on commercial with center nominal
value of 6.2 V by special request. (Excludes 1N826 and 1N828.)
Flexible axial-lead mounting terminals.
Non-sensitive to ESD per MIL-STD-750 method 1020.
Typical low capacitance of 100 pF or less.
MAXIMUM RATINGS @ T A = +25 ºC unless otherwise specified
Parameters/Test Conditions
Junction and Storage temperature
(1)
Power Dissipation
Maximum Zener Current
Solder Pad Temperatures at 10 s
Symbol
Value
T J and T STG
PD
I ZM
T SP
-55 to +175
Unit
o
C
500
mW
70
MSC – Lawrence
6 Lake Street,
Lawrence, MA 01841
1-800-446-1158
Tel: (978) 620-2600
Fax: (978) 689-0803
mA
260
o
C
Notes: 1. At T L = 25 oC and maximum current I ZM of 70 mA. For optimum voltage-temperature stability, I Z = 7.5
mA (less than 50 mW in dissipated power). Derate at 3.33 mW/oC above T A = +25 oC.
MSC – Ireland
Gort Road Business Park,
Ennis, Co. Clare, Ireland
Tel: +353 (0) 65 6840044
Fax: +353 (0) 65 6822298
Website:
www.microsemi.com
T4-LDS-0220, Rev. 2 (7/29/13)
©2013 Microsemi Corporation
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