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1N945 Datasheet PDF

1N945
Microsemi

Part Number 1N945
Description 11.7 Volt Temperature Compensated Zener Reference Diodes
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SCOTTSDALE DIVISION
1N941 thru 1N946B-1
11.7 Volt Temperature Compensated Zener
Reference Diodes
DESCRIPTION
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.
APPEARANCE
DO-7
(DO-204AA)
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
JEDEC registered 1N941 thru 1N946B series
Standard reference voltage of 11.7 V +/- 5% with
tighter tolerances also available
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
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 0.0002%/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
Operating & StorageTemperature: -65oC to +175oC
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)
Solder temperatures: 260 oC 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
Copyright 2003
8-21-2003 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
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