1
Revision Date: 12/13/2011
New Product
Zener Diode Chip Series
CD957B thru CD986B
Available in JANHC and JANKC per MIL-PRF-19500/117
Maximum Ratings
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
Forward Voltage @ 200mA: 1.5 volts maximum
Features
• 0.5 Watt capability with proper heat sinking
• Electrically equivalent to IN957B thru IN986B
• All junctions completely protected with silicon dioxide
• Compatible with all wire bonding and die attach techniques
NOMINAL ZENER MAXIMUM DC
TYPE ZENER TEST MAXIMUM ZENER IMPEDANCE ZENER MAXIMUM REVERSE
NUMBER VOLTAGE CURRENT (NOTE 2) CURRENT LEAKAGE CURRENT
VZl ZT l ZM lR@ VR
(NOTE 1) ZZT @ l ZT ZZK @ l ZK
VOLTS mA OHMS OHMS mA mA μ A VOLTS
CD957B 6.8 18.5 4.5 700 1.0 55 5.0 5.2
CD958B 7.5 16.5 5.5 700 0.5 50 5.0 5.7
CD959B 8.2 15.0 6.5 700 0.5 45 5.0 6.2
CD960B 9.1 14.0 7.5 700 0.5 41 5.0 6.9
CD961B 10 12.5 8.5 700 0.25 38 2.0 7.6
CD962B 11 11.5 9.5 700 0.25 32 1.0 8.4
CD963B 12 10.5 11.5 700 0.25 31 1.0 9.1
CD964B 13 9.5 13 700 0.25 28 0.5 9.9
CD965B 15 8.5 16 700 0.25 25 0.5 11
CD966B 16 7.8 17 700 0.25 24 0.5 12
CD967B 18 7.0 21 750 0.25 20 0.5 14
CD968B 20 6.2 25 750 0.25 18 0.5 15
CD969B 22 5.6 29 750 0.25 16 0.5 17
CD970B 24 5.2 33 750 0.25 15 0.5 18
CD971B 27 4.6 41 750 0.25 13 0.5 21
CD972B 30 4.2 49 1000 0.25 12 0.5 23
CD973B 33 3.8 58 1000 0.25 11 0.5 25
CD974B 36 3.4 70 1000 0.25 10 0.5 27
CD975B 39 3.2 90 1000 0.25 9.5 0.5 30
CD976B 43 3.0 93 1500 0.25 8.8 0.5 33
CD977B 47 2.7 105 1500 0.25 7.9 0.5 36
CD978B 51 2.5 125 1500 0.25 7.4 0.5 39
CD979B 56 2.2 150 2000 0.25 6.8 0.5 43
CD980B 62 2.0 185 2000 0.25 6.0 0.5 47
CD981B 68 1.8 230 2000 0.25 5.5 0.5 52
CD982B 75 1.7 270 2000 0.25 5.0 0.5 56
CD983B 82 1.5 330 3000 0 .25 4.6 0.5 62
CD984B 91 1.4 400 3000 0.25 4.1 0.5 69
CD985B 100 1.3 500 3000 0.25 3.7 0.5 76
CD986B 110 1.1 750 4000 0.25 3.3 0.5 84
Electrical Specifications @ +25 ºC (Unless Otherwise Specified)
NOTE 1 Zener voltage range equals nominal voltage + 5% for “B” Suffix. “A” Suffix denotes + 10%, No Suffix denotes + 20%.
"C" suffix = + 2% and "D" suffix = + 1%. Zener voltage is read using a pulse measurement, 10 milliseconds maximum.
NOTE 2 Zener impedance is derived by superimposing on IZT a 60Hz rms a.c. current equal to 10% of IZT.
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Revision Date: 12/13/2011
Aeroflex / Metelics, Inc.
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www.aeroflex.com/metelics-hirelcomponents
Aeroflex / Metelics, Inc. reserves the right to make changes to any products and services
herein at any time without notice. Consult Aeroflex or an authorized sales representative to
verify that the information in this data sheet is current before using this product. Aeroflex
does not assume any responsibility or liability arising out of the application or use of any
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CD957B thru CD986B
.1 .2 .3 .4 .5 1 2 5 10 20 30 40 50 100
OPERATING CURRENT lZT (mA)
ZENER IMPEDANCE VS. OPERATING CURRENT
1000
500
400
300
200
100
50
40
30
20
10
5
4
3
2
1
ZENER IMPEDANCE ZZT (OHMS)
3.3 VOLT
5.1 VOLT
27 VOLT
11 VOLT
6.2 VOLT
DESIGN DATA
METALLIZATION: Top: (Anode) Al
Back: (Cathode) Au
AL THICKNESS: 25,000 Å Minimum
GOLD THICKNESS: 4,000 Å Minimum
CHIP THICKNESS: 10 Mils
CIRCUIT LAYOUT DATA: For Zener operation, cathode must be operated
positive with respect to anode.
Outline Drawing
Graphs
Anode