1N3154 thru 1N3157, A, -1
8.4 Volt Temperature Compensated Zener
Reference Diodes
SCOTTSDALE DIVISION
DESCRIPTION
The popular 1N3154 thru 1N3157A series of Zero-TC Reference Diodes
provides a selection of 8.4 V nominal voltages and temperature coefficients to
as low as 0.001 %/
o
C for minimal voltage change with temperature when
operated at 10.0 mA. These glass axial-leaded DO-7 reference diodes are
also available in JAN, JANTX, and JANTXV military qualifications. Microsemi
also offers numerous other Zener Reference Diode products for a variety of
other voltages from 6.2 V to 200 V.
APPEARANCE
WWW .
Microsemi
.C
OM
DO-7
(DO-204AA)
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
FEATURES
•
JEDEC registered 1N3154 thru 1N3157A series
•
Standard reference voltage of 8.4V +/- 5% with
tighter tolerances available
•
1N3154, 3155, 3156, and 3157 also have military
qualification to MIL-PRF-19500/158 up to the
JANTXV level by adding JAN, JANTX, or JANTXV
prefixes to part numbers as well as “-1” suffix, e.g.
JANTX1N3157-1, etc.
•
Internal metallurgical bonds
•
JANS Equivalent available via SCD
•
Radiation Hardened devices available by changing
1N prefix to RH, e.g. RH3156, RH3157, RH3157A,
etc. Also consult factory for “RH” data sheet
brochure
•
•
•
•
APPLICATIONS / BENEFITS
Provides minimal voltage changes over a broad
temperature range
For instrumentation and other circuit designs
requiring a stable voltage reference
Maximum temperature coefficient selections
available from 0.01%/ºC to 0.001%/ºC
Tight reference voltage tolerances at the 8.4 V
nominal is available by adding tolerance 1%, 2%,
3%, etc. after the part number for identification e.g.
1N3156-2%, 1N3157A-1%, 1N3157-1-1%, etc.
Flexible axial-lead mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method 1020
•
•
MAXIMUM RATINGS
•
Operating & StorageTemperature: -65
o
C to +175
o
C
•
DC Power Dissipation: 500 mW @ T
L
= 25
o
C and
maximum current I
ZM
of 55 mA. NOTE: For optimum
voltage-temperature stability, I
Z
= 10.0 mA (less than
90 mW in dissipated power)
•
Solder temperatures: 260
o
C for 10 s (maximum)
MECHANICAL AND PACKAGING
•
CASE: Hermetically sealed glass case with DO-7
(DO-204AA) package
•
TERMINALS: Tin-lead plated and solderable per
MIL-STD-750, Method 2026
•
MARKING: Part number and cathode band
•
POLARITY: Reference diode to be operated with
the banded end positive with respect to the
opposite end
•
TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
•
WEIGHT: 0.2 grams.
•
See package dimensions on last page
1N3154 - 1N3157A
Copyright
2003
8-20-2003 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
1N3154 thru 1N3157, A, -1
8.4 Volt Temperature Compensated Zener
Reference Diodes
SCOTTSDALE DIVISION
*ELECTRICAL CHARACTERISTICS @ 25
o
C, unless otherwise specified
JEDEC
TYPE
NUMBERS
(Notes 1, 5
& 6)
ZENER
VOLTAGE
V
Z
@ I
ZT
(Note 1)
VOLTS
ZENER
TEST
CURRENT
I
ZT
mA
MAXIMUM
ZENER
IMPEDANCE
(Note 2)
Z
ZT
OHMS
MAXIMUM
REVERSE
CURRENT
I
R
@ 5.5 V
VOLTAGE
TEMPERATURE
STABILITY
(Note 3 & 4)
∆V
ZT
MAXIMUM
mV
EFFECTIVE
TEMPERATURE
COEFFICIENT
α
VZ
%/ C
o
WWW .
Microsemi
.C
OM
TEMPERATURE
RANGE
1N3154
1N3154A
1N3155
1N3155A
1N3156
1N3156A
1N3157
1N3157A
8.00-8.80
8.00-8.80
8.00-8.80
8.00-8.80
8.00-8.80
8.00-8.80
8.00-8.80
8.00-8.80
10
10
10
10
10
10
10
10
15
15
15
15
15
15
15
15
µA
10
10
10
10
10
10
10
10
o
C
130
172
65
86
26
34
13
17
-55 to +100
-55 to +150
-55 to +100
-55 to +150
-55 to +100
-55 to +150
-55 to +100
-55 to +150
0.01
0.01
0.005
0.005
0.002
0.002
0.001
0.001
*JEDEC Registered Data.
NOTES:
1.
2.
3.
4.
5.
6.
When ordering devices with tighter tolerance than specified, add a hyphenated suffix to the part number for desired tolerance,
e.g. 1N3156-2%, 1N3157A-1%, 1N3157-1-1%, etc.
o
Measured by superimposing 1.0 mA ac rms on 10 mA dc @ 25 C.
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.
Voltage measurements to be performed 15 seconds after application of dc current.
The 1N3154, 1N3155, 1N3156, and 1N3157 also have military qualification to MIL-PRF-19500/158 up to the JANTXV level by
adding JAN, JANTX, or JANTXV prefix to part numbers as well as “-1” suffix, e.g. JANTX1N3156-1, JANTXV1N3157-1, etc.
Designate Radiation Hardened devices with “RH” prefix instead of “IN”, i.e. RH3157A instead of 1N3157A.
GRAPHS
Change in temperature coefficient (mV/ C)
Change in temperature coefficient (%/ C)
o
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 10mA.
EXAMPLE: A diode in this series is operated at a current of
10mA and has specified Temperature Coefficient (TC) limits of
o
+/-0.005%/ C. To obtain the typical Temperature Coefficient
limits for this same diode operated at a current of 7.5mA, the
o
new TC limits (%/ C) can be estimated using the graph in
FIGURE 1.
At a test current of 7.5mA the change in Temperature Coefficient
o
(TC) is approximately –0.0012%. C. The algebraic sum of +/-
o
o
0.005% C and –0.0012%/ C gives the new estimated limits of
+0.0038%/oC and -0.0062%/oC.
o
1N3154 - 1N3157A
FIGURE 1
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT.
I
Z
– Operating Current (mA)
Copyright
2003
8-20-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
1N3154 thru 1N3157, A, -1
8.4 Volt Temperature Compensated Zener
Reference Diodes
SCOTTSDALE DIVISION
WWW .
Microsemi
.C
OM
∆
V
Z
– Change in Zener Voltage (mV)
This curve in Figure 2 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 1, this curve can be
used to estimate total voltage regulation under
conditions of both varying temperature and
current.
FIGURE 2
TYPICAL CHANGE OF ZENER VOLTAGE
WITH CHANGE IN OPERATING CURRENT.
DIMENSIONS
I
Z
– Operating Current (mA)
All dimensions in INCH
mm
1N3154 - 1N3157A
Copyright
2003
8-20-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
