Microsemi 1N821UR, 1N829AUR-1 User Manual
1N821UR thru 1N829AUR-1
(or MLL821 thru MLL829-1)
SCOTTSDALE DIVISION
The 1N821UR thru 1N829AUR-1 series of surface mount Zero-TC
DESCRIPTION
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%/oC for minimal
voltage change with temperature when operated at 7.5 mA. These glass
surface mount DO-213AA (MELF) 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
• Surface mount equivalent of JEDEC registered
1N821 thru 1N829 series
• Internal metallurgical bond option available by adding
a “-1” suffix
• Reference voltage selection of 6.2 V & 6.55 V +/-5%
with further tight tolerance options at lower voltage
• 1N821, 823, 825, 827 and 829 also have surface
mount qualification to MIL-PRF-19500/159 by adding
the JAN, JANTX, or JANTXV prefixes to part
numbers a well as the “-1” suffix; e.g. JANTX1N8291, etc.
• Axial-leaded equivalents also available in DO-35 or
DO-7 without the UR suffix (see separate data sheet)
including military qualifications up to JANS for DO-7
(see separate data sheet)
• JANS equivalent available in DO-213AA via SCD
FEATURES
• Operating Temperatures: -65
• Storage Temperatures: -65
• DC Power Dissipation: 500 mW @ T
maximum current I
optimum voltage-temperature stability, I
(less than 50 mW in dissipated power)
• Solder Temperatures: 260
MAXIMUM RATINGS
o
C to +175oC
o
C to +175oC
of 70 mA. NOTE: For
ZM
o
C for 10 s (max)
MICROSEMI’s
= 25oC and
L
= 7.5 mA
Z
6.2 & 6.55 Volt Temperature Compensated
Surface Mount Zener Reference Diodes
APPEARANCE
DO-213AA
website: http://www.microsemi.com
• Provides minimal voltage changes over a broad
• For instrumentation and other circuit designs
• Maximum temperature coefficient selections available
• Tight reference voltage tolerances available with
• Small surface-mount footprint
• Nonsensitive to ESD per MIL-STD-750 Method 1020
• Typical low capacitance of 100 pF or less
APPLICATIONS / BENEFITS
temperature range
requiring a stable voltage reference
from 0.01%/ºC to 0.0005%/ºC
center nominal value of 6.15 V by adding designated
tolerance such as 1%, 2%, 3%, etc. after the part
number for identification
e.g. 1N827UR-2%, 1N829AUR-1-1%, etc.
MECHANICAL AND PACKAGING
• CASE: Hermetically sealed glass case. DO-213AA
package
• TERMINALS: Leads, tin-lead plated solderable per
MIL-STD-750, Method 2026
• MARKING: 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-481-B with
12 mm tape, 2000 per 7 inch reel or 5000 oer 13
inch reel (add “TR” suffix to part number)
• WEIGHT: 0.04 grams.
• See package dimensions on last page
WWW.
Microsemi
. COM
1N821UR thru
1N829AUR-1
Copyright 2003
12-19-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
1N821UR thru 1N829AUR-1
(or MLL821 thru MLL829-1)
SCOTTSDALE DIVISION
6.2 & 6.55 Volt Temperature Compensated
Surface Mount Zener Reference Diodes
*ELECTRICAL CHARACTERISTICS @ 25oC, unless otherwise specified
MAXIMUM
ZENER
IMPEDANCE
(Note 2)
@ IZT
Z
ZT
15
10
15
15
10
15
15
10
15
15
10
15
15
10
JEDEC
TYPE NUMBER
(Notes 1, 5 & 6)
1N821UR
1N821AUR
1N822UR †
1N823UR
1N823AUR
1N824UR †
1N825UR
1N825AUR
1N826UR
1N827UR
1N827AUR
1N828UR
1N829UR
1N829AUR
ZENER
VOLTAGE
(Note 1 and 4)
@ IZT
V
Z
ZENER
TEST
CURRENT
I
ZT
VOLTS mA OHMS µA mV %/oC
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
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
*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
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. Zener impedance is measured by superimposing 0.75 mA ac rms on 7.5 mA dc @ 25
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. 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.
6. This product series has also been previously identified as the MLL821 thru MLL829A-1. This alternate name may still be used.
Copyright 2003
12-19-2003 REV A
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Microsemi
Scottsdale Division
MAXIMUM
REVERSE
CURRENT
@ 3 V
I
R
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
VOLTAGE
TEMPERATURE
STABILITY
MAX)
(∆V
ZT
o
C to +100oC
-55
(Note 3 and 4)
96
96
96
48
48
48
19
19
20
9
9
10
5
5
o
C.
EFFECTIVE
TEMPERATURE
COEFFICIENT
0.01
0.01
0.01
0.005
0.005
0.005
0.002
0.002
0.002
0.001
0.001
0.001
0.0005
0.0005
α
VZ
voltage nominal
Z
Page 2
WWW.
Microsemi
. COM
1N821UR thru
1N829AUR-1
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