1N821UR thru 1N829AUR-1
(or MLL821 thru MLL829-1)
6.2 & 6.55 Volt Temperature Compensated
Surface Mount Zener Reference Diodes
S C O T T S D A L E D I V I S I O N
*ELECTRICAL CHARACTERISTICS @ 25oC, unless otherwise specified
VOLTAGE
MAXIMUM
REVERSE
CURRENT
IR @ 3 V
MAXIMUM
ZENER
EFFECTIVE
TEMPERATURE
COEFFICIENT
TEMPERATURE
STABILITY
ZENER
VOLTAGE
(Note 1 and 4)
VZ @ IZT
ZENER
TEST
JEDEC
IMPEDANCE
(Note 2)
CURRENT
IZT
(∆VZT MAX)
TYPE NUMBER
(Notes 1, 5 & 6)
-55oC to +100oC
(Note 3 and 4)
α
VZ
ZZT @ IZT
VOLTS
5.9 – 6.5
5.9 – 6.5
5.9 – 6.5
5.9 – 6.5
5.9 – 6.5
5.9 – 6.5
5.9 – 6.5
5.9 – 6.5
6.2 – 6.9
5.9 – 6.5
5.9 – 6.5
6.2 – 6.9
5.9 – 6.5
5.9 – 6.5
mA
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
OHMS
15
µA
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
mV
96
96
96
48
48
48
19
19
20
9
%/oC
0.01
1N821UR
1N821AUR
1N822UR †
1N823UR
1N823AUR
1N824UR †
1N825UR
1N825AUR
1N826UR
1N827UR
1N827AUR
1N828UR
1N829UR
1N829AUR
10
0.01
15
0.01
15
0.005
0.005
0.005
0.002
0.002
0.002
0.001
0.001
0.001
0.0005
0.0005
10
15
15
10
15
15
10
9
15
10
5
15
10
5
*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 6.15 V, add a further hyphened suffix number % to the part number for desired tolerance, e.g. 1N827UR-1-2%, 1N829UR-1-1%,
1N829AUR-1%, 1N829AUR-1-1%, etc.
2.
3.
Zener impedance is measured by superimposing 0.75 mA ac rms on 7.5 mA dc @ 25oC.
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.
5.
Voltage measurements to be performed 15 seconds after application of dc current.
1N821UR-1, 1N823UR-1, 1N825UR-1, 1N827UR-1, and 1N829UR-1 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. JANTX1N827UR-1, JANTXV1N829UR-1, etc.
This product series has also been previously identified as the MLL821 thru MLL829A-1. This alternate name may still be used.
6.
Copyright 2003
Microsemi
Scottsdale Division
Page 2
12-19-2003 REV A
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
MICROSEMI [ Microsemi ]
