1
Revision Date: 11/4/2009
New Product
Silicon Zener Diode Series
1N957B thru 1N992B
Maximum Ratings
Operating & Storage Temperature: -65°C to +175°C
Thermal Resistance: 250°C/W
Steady-State Power: 0.5 watts
Foward Voltage @200 MA: 1.1 V for 1N 975B - 1N985B
1.3 V for 1N985 - 1N992B
Features
Available in JAN, JANTX and JANTXV per MIL-PRF-19500/117
Standard voltage tolerences are plus/minus 5%
with B suffix, 10% with A suffix identification.
Tight tolerences available in plus or minus 2% or
1% with C or D suffix respectively.
500 mW power handling
Hermetically sealed axial-leaded glass DO-35 package.
Normal Zener Maximum Zener Maximum DC Maxmum Surge Maximum Reverse Maximum
JEDEC Zener Test Impedance Zener Current Leakage Current Temperature
TYPE Voltage Current Coefficient
Number VzIZT ZZT @ IZT ZZK @ IZK IZM IZSM IR @ VRαVZ
(Note1) Volts mA Ohms Ohms mA mA mA μA Volts %/°C
1N957B 6.8 18.5 4.5 700 1.0 55 300 150 5.2 +0.05
1N958B 7.5 16.5 5.5 700 .5 50 275 75 5.7 +0.058
1N959B 8.2 15.0 6.5 700 .5 45 250 50 6.2 +0.065
1N960B 9.1 14.0 7.5 700 .5 41 225 25 6.9 +0.068
1N961B 10 12.5 8.5 700 .25 38 200 10 7.6 +0.075
1N962B 11 11.5 9.5 700 .25 32 175 5 8.4 +0.076
1N963B 12 10.5 11.5 700 .25 31 160 5 9.1 +0.077
1N964B 13 9.5 13 700 .25 28 150 5 9.9 +0.079
1N965B 15 8.5 16 700 .25 25 130 5 11.4 +0.082
1N966B 16 7.8 17 700 .25 24 120 5 12.2 +0.083
1N967B 18 7.0 21 750 .25 20 110 5 13.7 +0.085
1N968B 20 6.2 25 750 .25 18 100 5 15.2 +0.086
1N969B 22 5.6 29 750 .25 16 90 5 16.7 +0.087
1N970B 24 5.2 33 750 .25 15 80 5 18.2 +0.088
1N971B 27 4.6 41 750 .25 13 70 5 20.6 +0.090
1N972B 30 4.2 49 1000 .25 12 65 5 22.8 +0.091
1N973B 33 3.8 58 1000 .25 11 60 5 25.1 +0.092
1N974B 36 3.4 70 1000 .25 10 55 5 27.4 +0.093
1N975B 39 3.2 80 1000 .25 9.5 46 5 29.7 +0.094
1N976B 43 3.0 93 1000 .25 8.8 44 5 32.7 +0.095
1N977B 47 2.7 105 1500 .25 7.9 40 5 35.8 +0.095
1N978B 51 2.5 125 1500 .25 7.4 37 5 38.8 +0.096
1N979B 56 2.2 150 2000 .25 6.8 35 5 42.6 +0.096
1N980B 62 2.0 185 2000 .25 6.0 30 5 47.1 +0.097
1N981B 68 1.8 230 2000 .25 5.5 28 5 51.7 +0.097
1N982B 75 1.7 270 2000 .25 5.0 26 5 56.0 +0.098
1N983B 82 1.5 330 3000 .25 4.6 23 5 62.2 +0.098
1N984B 91 1.4 400 3000 .25 4.1 21 5 69.2 +0.099
1N985B 100 1.3 500 3000 .25 3.7 18 5 76.0 +0.11
1N986B 110 1.1 750 4000 .25 3.3 16 5 83.6 +0.11
1N987B 120 1.0 900 4500 .25 3.1 15 5 91.2 +0.11
1N988B 130 0.95 1100 5000 .25 2.7 13 5 98.8 +0.11
1N989B 150 0.85 1500 6000 .25 2.4 12 5 114.0 +0.11
1N990B 160 0.80 1700 6500 .25 2.2 11 5 121.6 +0.11
1N991B 180 0.68 2200 7100 .25 2.0 10 5 136.8 +0.11
1N992B 200 0.65 2500 8000 .25 1.8 9 5 152.0 +0.11
Electrical Specifications @ +25 ºC (Unless Otherwise Specified)
NOTE 1: The JEDEC type numbers shown (B Suffix) have a +5% tolerence on nominal Zener Votlage. The suffix A is used to identify +10%
tolerance; suffix C is used to identify +2%: and suffix D is used identify +1%; no suffix indicates +20%.
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Revision Date: 11/4/2009
Aeroflex / Metelics, Inc.
975 Stewart Drive, 54 Grenier Field Road,
Sunnyvale, CA 94085 Londonderry, NH 03053
Tel: (408) 737-8181 Tel: (603) 641-3800
Fax: (408) 733-7645 Fax: (603)-641-3500
Sales: 888-641-SEMI (7364)
Hi-Rel Components
9 Hampshire Street,
Lawrence, MA 01840
Tel: (603) 641-3800
Fax: (978) 683-3264
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
product or service described herein, except as expressly agreed to in writing by Aeroflex;
nor does the purchase, lease, or use of a product or service from Aeroflex convey a license
under any patent rights, copyrights, trademark rights, or any other of the intellectual rights
of Aeroflex or of third parties.
Copyright 2009 Aeroflex / Metelics. All rights reserved.
www.aeroflex.com/metelics metelics-sales@aeroflex.com
ISO 9001: 2008 certified companies
1N957B thru 1N992B
LEADED DESIGN DATA
CASE: Hermetically sealed, DO – 35
LEAD MATERIAL: Copper clad steel
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (RӨJEC): 70 °C/W maximum at L = 0.375 in
THERMAL IMPEDANCE: (ZӨJX): 12 °C/W maximum
POLARITY: Cathode end is banded.
MOUNTING POSITION: Any
0.080
2.03
MAX
DIA
POLARITY
BAND
(CATHODE)
0.018 / 0.022
0.457 / 0.559 DIA
0.175
4.44 MAX
1.000
25.400 MIN
All dimensions in INCH
mm
1.000
25.400 MIN
Outline Drawing
Graphs