1N821, A, -1 thhrruu
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11NN882299AA--11 DDOO--3355
1N821 thru 1N829A-1 DO-35
6.2 & 6.55 Volt Temperature Compensated
Zener Reference Diodes
SCOTTSDALE DIVISION
DESCRIPTION APPEARANCE
The popular 1N821 thru 1N829A series of Zero-TC Reference Diodes
DO-35
provides a selection of both 6.2 V and 6.55 V nominal voltages and
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temperature coefficients to as low as 0.0005%/ C for minimal voltage
change with temperature when operated at 7.5 mA. These glass axial-
leaded DO-35 reference diodes are optionally available with an internal-
metallurgical-bond by adding a -1 suffix. This type of bonded Zener
package construction is also available in JAN, JANTX, and JANTXV
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 MICROSEMIs website: 1N821, A, -1 thru
WWW.Microsemi .COM
1N829A-1 DO-35
1N821 thru 1N829A-1 DO-35
6.2 & 6.55 Volt Temperature Compensated
Zener Reference Diodes
SCOTTSDALE DIVISION
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*ELECTRICAL CHARACTERISTICS @ 25 C, unless otherwise specified
VOLTAGE
MAXIMUM
MAXIMUM
EFFECTIVE
ZENER ZENER TEMPERATURE
REVERSE
ZENER
TEMPERATURE
VOLTAGE TEST STABILITY
JEDEC
CURRENT
IMPEDANCE
COEFFICIENT
(Note 1 and 4) CURRENT (V MAX)
TYPE NUMBER ZT
(Note 2) I @ 3 V
R o o
V @ I I -55 C to +100 C
(Note 1 & 5) Z ZT ZT VZ
Z @ I
ZT ZT
(Note 3 and 4)
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VOLTS mA OHMS A mV %/ C
1N821 5.9 6.5 7.5 15 2.0 96 0.01
1N821A 5.9 6.5 7.5 10 2.0 96 0.01
1N822 5.9 6.5 7.5 15 2.0 96 0.01
1N823 5.9 6.5 7.5 15 2.0 48 0.005
1N823A 5.9 6.5 7.5 10 2.0 48 0.005
1N824 5.9 6.5 7.5 15 2.0 48 0.005
1N825 5.9 6.5 7.5 15 2.0 19 0.002
1N825A 5.9 6.5 7.5 10 2.0 19 0.002
1N826 6.2 6.9 7.5 15 2.0 20 0.002
1N827 5.9 6.5 7.5 15 2.0 9 0.001
1N827A 5.9 6.5 7.5 10 2.0 9 0.001
1N828 6.2 6.9 7.5 15 2.0 10 0.001
1N829 5.9 6.5 7.5 15 2.0 5 0.0005
1N829A 5.9 6.5 7.5 10 2.0 5 0.0005
*JEDEC Registered Data.
Double Anode; electrical specifications apply under both bias polarities.
NOTES:
1. Add a -1 suffix for internal metallurgical bond. When ordering devices with tighter tolerances than specified for the V
Z
voltage nominal of 6.15 V, add a hyphened suffix to the part number for desired tolerance, e.g. 1N827-1-2%, 1N829-1-1%,
1N829A-1%, 1N829A-1-1%, etc.
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2. Zener impedance is measured by superimposing 0.75 mA ac rms on 7.5 mA dc @ 25 C.
3. The maximum allowable change observed over the entire temperature range i.e., the diode voltage will not exceed the
specified mV change at any discrete temperature between the established limits.
4. Voltage measurements to be performed 15 seconds after application of dc current.
5. 1N821, 1N823, 1N825, 1N827, and 1N829 also have qualification to MIL-PRF-19500/159 by adding the JAN, JANTX, or
JANTXV prefix to part numbers as well as the -1 suffix; e.g. JANTX1N827-1, JANTXV1N829-1, etc.
Copyright 2003
Microsemi
Page 2
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