1N935 thru 1N940B-1
9.0 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 1N935 thru 1N940B series of Zero-TC Reference Diodes
provides a selection of 9.0 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
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JEDEC registered 1N935 thru 1N940 series
Standard reference voltage of 9.0V +/- 5%
1N935B, 937B, 938B, 939B, 940B also have military
qualification to MIL-PRF-19500/156 up to the
JANTXV level by adding JAN, JANTX, or JANTXV
prefixes to part numbers as well as “-1” suffix, e.g.
JANTX1N938B-1, etc.
Internal metallurgical bonds
JANS Equivalent available via SCD
Radiation Hardened devices available by changing
“1N” prefix to “RH”, e.g. RH938B, RH 940B, etc.
Also consult factory for “RH” data sheet brochure
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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 voltage tolerances available with nominal
voltage of 9.2 V by adding tolerance 1%, 2%, 3%,
etc. after the part number for further identification,
e.g. 1N938B-2%, 1N940B-1%, 1N939B-1-1%, etc.
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Flexible axial-leaded mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method
1020
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
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Operating & StorageTemperature: -65oC to +175oC
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CASE: Hermetically sealed glass case with DO-7
DC Power Dissipation: 500 mW @ TL = 25oC and
maximum current IZM of 50 mA. NOTE: For optimum
voltage-temperature stability, IZ = 7.5 mA (less than
75 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
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Solder temperatures: 260 oC for 10 s (maximum)
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TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
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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