1N943TR [MICROSEMI]
Zener Diode, 11.7V V(Z), 5%, 0.5W, Silicon, DO-204AA, HERMETIC SEALED, GLASS, DO-7;
| 型号： | 1N943TR |
| 厂家： | 
Microsemi |
| 描述： | Zener Diode, 11.7V V(Z), 5%, 0.5W, Silicon, DO-204AA, HERMETIC SEALED, GLASS, DO-7 二极管 |
| 文件： | 总3页 (文件大小：176K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1N941 thru 1N946B-1
11.7 Volt Temperature Compensated Zener
Reference Diodes
S C O T T S D A L E D I V I S I O N
DESCRIPTION
APPEARANCE
The popular 1N941 thru 1N946B series of Zero-TC Reference Diodes
provides a selection of 11.7 V nominal voltages and temperature
coefficients to as low as 0.0002%/oC for minimal voltage change with
temperature when operated at 7.5 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.
DO-7
(DO-204AA)
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
•
•
JEDEC registered 1N941 thru 1N946B series
•
•
•
•
Provides minimal voltage changes over a broad
temperature range
Standard reference voltage of 11.7 V +/- 5% with
tighter tolerances also available
For instrumentation and other circuit designs
requiring a stable voltage reference
•
1N941B, 942B, 943B, 944B, 945B also have military
qualification to MIL-PRF-19500/157 up to the
JANTXV level by adding JAN, JANTX, or JANTXV
prefixes to part numbers as well as “-1” suffix, e.g.
JANTX1N944B-1, etc.
Internal metallurgical bonds
JANS Equivalent available via SCD
Radiation Hardened devices available by changing
“1N” prefix to “RH”, e.g. RH944B, RH945B, etc.
Also consult factory for “RH” data sheet brochure
Maximum temperature coefficient selections
available from 0.01%/ºC to 0.0002%/ºC
Tight reference voltage tolerances available at 11.7
V nominal values by adding the tolerance 1%, 2%,
3%, etc. after the part number for further
identification e.g. 1N944B-2%, 1N945A-1%,
1N944B-1-1%, etc.
Flexible axial-lead mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method 1020
•
•
•
•
•
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
•
•
Operating & StorageTemperature: -65oC to +175oC
•
•
CASE: Hermetically sealed glass case with DO-7
DC Power Dissipation: 500 mW @ TL = 25oC and
maximum current IZM of 39 mA. NOTE: For optimum
voltage-temperature stability, IZ = 7.5 mA (less than
95 mW in dissipated power)
(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
•
•
•
Solder temperatures: 260 oC for 10 s (maximum)
•
TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
•
•
WEIGHT: 0.2 grams.
See package dimensions on last page
Copyright 2003
Microsemi
Page 1
8-21-2003 REV A
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1N941 thru 1N946B-1
11.7 Volt Temperature Compensated 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
EFFECTIVE
TEMPERATURE
COEFFICIENT
MAXIMUM
REVERSE
CURRENT
IR @ 8 V
TEMPERATURE
STABILITY
(Note 3 & 4)
∆VZT
ZENER
VOLTAGE
VZ @ IZT
ZENER
TEST
JEDEC
TYPE
ZENER
IMPEDANCE
(Note 2)
TEMPERATURE
RANGE
CURRENT
IZT
NUMBER
(Note 1,
5 & 6)
(Note 4)
αVZ
ZZT @ IZT
MAXIMUM
VOLTS
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
7.5
7.5
7.5
7.5
OHMS
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
µA
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
mV
88
181
239
44
90
120
18
36
47
9
oC
%/oC
0.01
1N941
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
11.12-12.28
0 to +75
1N941A
1N941B
1N942
-55 to +100
-55 to +150
0 to +75
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
0.0005
0.0002
0.0002
0.0002
1N942A
1N942B
1N943
-55 to +100
-55 to +150
0 to +75
1N943A
1N943B
1N944
-55 to +100
-55 to +150
0 to +75
1N944A
1N944B
1N945
18
24
4
-55 to +100
-55 to +150
0 to +75
1N945A
1N945B
1N946
9
-55 to +100
-55 to +150
0 to +75
12
1.8
3.6
4.7
1N946A
1N946B
-55 to +100
-55 to +150
*JEDEC Registered Data.
NOTES:
1. For tighter voltages tolerances, add a hyphenated suffix to the part number for desired tolerance at the end of the part number, e.g.
1N944B-2%, 1N945B-1%, 1N944B-1-1%, etc.
2. 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 any discrete temperature between the established limits.
4. Voltage measurements to be performed 15 seconds after application of dc current.
5. The 1N941B, 1N942B, 1N943B, 1N944B, 1N945B also have military qualification to MIL-PRF-19500/157 up to the JANTXV level by
adding JAN, JANTX, or JANTXV prefixes to part numbers as well as “-1” suffix, e.g. JANTX1N944B-1, JANTXV1N945B-1, etc.
6. Designate Radiation Hardened devices with “RH” prefix instead of “1N”, i.e. RH944B instead of 1N944B.
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
+/-0.002%/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 –0.0009%.oC. The algebraic sum of +/-
0.002%oC and –0.0009%/oC gives the new estimated limits of
+0.0011%/oC and -0.0029%/oC.
IZ – Operating Current (mA)
FIGURE 1
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT.
Copyright 2003
Microsemi
Page 2
8-21-2003 REV A
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1N941 thru 1N946B-1
11.7 Volt Temperature Compensated Zener
Reference Diodes
S C O T T S D A L E D I V I S I O N
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.
IZ – Operating Current (mA)
FIGURE 2
TYPICAL CHANGE OF ZENER VOLTAGE
WITH CHANGE IN OPERATING CURRENT.
DIMENSIONS
All dimensions in INCH
mm
Copyright 2003
8-21-2003 REV A
Microsemi
Page 3
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
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