1N821UR-1-1 查看數據表（PDF） - Microsemi Corporation
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1N821UR-1-1 Datasheet PDF : 3 Pages
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SCOTTSDALE DIVISION
1N821 thru 1N829A-1 DO-7
6.2 & 6.55 Volt Temperature Compensated
Zener Reference Diodes
*ELECTRICAL CHARACTERISTICS @ 25oC, unless otherwise specified
JEDEC
TYPE NUMBER
(Note 1, 5 & 6)
ZENER
VOLTAGE
(Note 1 and 4)
VZ @ IZT
ZENER
TEST
CURRENT
IZT
MAXIMUM
ZENER
IMPEDANCE
(Note 2)
ZZT @ IZT
MAXIMUM
REVERSE
CURRENT
IR @ 3 V
VOLTAGE
TEMPERATURE
STABILITY
(∆VZT MAX)
-55oC to +100oC
(Note 3 and 4)
EFFECTIVE
TEMPERATURE
COEFFICIENT
αVZ
VOLTS
mA
OHMS
µA
mV
%/oC
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 VZ voltage nominal of
6.35 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.
2. Zener impedance measured by superimposing 0.75 mA ac rms on 7.5 mA dc @ 25oC.
3. The maximum allowable change observed over the entire temperature range i.e., the diode voltage will not exceed the specified mV
change at 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, JANTXV, or
JANS prefix to part numbers as well as the “-1” suffix; e.g. JANTX1N827-1, JANTXV1N829-1, etc.
6. Designate Radiation Hardened devices with “RH” prefix instead of “1N”, e.g. RH829A instead of 1N829A.
GRAPHS
The curve shown in Figure 1 is typical of the diode series and
greatly simplifies the estimation of the Temperature Coefficient
(TC) when the diode is operated at currents other than 7.5mA.
EXAMPLE: A diode in this series is operated at a current of
7.5mA and has specified Temperature Coefficient (TC) limits of
+/-0.005%/oC. To obtain the typical Temperature Coefficient
limits for this same diode operated at a current of 6.0mA, the
new TC limits (%/oC) can be estimated using the graph in
FIGURE 1.
At a test current of 6.0mA the change in Temperature Coefficient
(TC) is approximately –0.0006%.oC. The algebraic sum of +/-
0.005%oC and –0.0006%/oC gives the estimated limits of
+0.0044%/oC and -0.0056%/oC.
FIGURE 1
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT.
Copyright 2003
10-27-2003 REV C
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
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