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1N823URTR Datasheet(PDF) 3 Page - Microsemi Corporation

Part No. 1N823URTR
Description  6.2 & 6.55 Volt Temperature Compensated Surface Mount Zener Reference Diodes
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Maker  MICROSEMI [Microsemi Corporation]
Homepage  http://www.microsemi.com
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1N823URTR Datasheet(HTML) 3 Page - Microsemi Corporation

   
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6.2 & 6.55 Volt Temperature Compensated
Surface Mount Zener Reference Diodes
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
Copyright
 2003
12-19-2003 REV A
SCOTTSD A L E DIVISION
1N821UR thru 1N829AUR-1
(or MLL821 thru MLL829-1)
GRAPHS
IZ – Operating Current (mA)
IZ – Operating Current (mA)
FIGURE 2
FIGURE 3
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
TYPICAL CHANGE OF ZENER VOLTAGE
WITH CHANGE IN OPERATING CURRENT.
WITH CHANGE IN OPERATING CURRENT
This curve in Figure 3 illustrates the change of diode
voltage arising from the effect of impedance. It is in effect
an exploded view of the zener operating region of the I-V
characteristic.
In conjunction with Figure 2, this curve can be used to
estimate total voltage regulation under conditions of both
varying temperature and current.
The curve shown in Figure 2 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 2.
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 new estimated limits of +0.0044%/oC and -0.0056%/oC.
PACKAGE DIMENSIONS
INCHES
MILLIMETERS
DIM
MIN
MAX
MIN
MAX
A
0.063
0.067
1.60
1.70
B
0.130
0.146
3.30
3.70
C
0.016
0.022
0.41
0.55
PAD LAYOUT
INCHES
mm
A
.200
5.08
B
.055
1.40
C
.080
2.03


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