1
Revision Date: 4/18/2012
Silicon Zener Diode Series
1N957BUR-1 thru 1N986BUR-1
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 1N957BUR-1 – 1N986BUR-1
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-213AA package.
Normal Zener Maximum Zener Maximum DC Maxmum Surge Maximum Reverse Maximum
JEDEC Zener Test Impedance Zener Current Leakage Temperature
TYPE Voltage Current Current Coefficient
Number VzIZT ZZT @ IZT ZZK @ IZK IZM IZSM IR @ VRαVZ
(Note1) Volts mA Ohms Ohms mA mA mA μA Volts %/°C
1N957BUR-1 6.8 18.5 4.5 700 1.0 55 300 150 5.2 +0.05
1N958BUR-1 7.5 16.5 5.5 700 .5 50 275 75 5.7 +0.058
1N959BUR-1 8.2 15.0 6.5 700 .5 45 250 50 6.2 +0.065
1N960BUR-1 9.1 14.0 7.5 700 .5 41 225 25 6.9 +0.068
1N961BUR-1 10 12.5 8.5 700 .25 38 200 10 7.6 +0.075
1N962BUR-1 11 11.5 9.5 700 .25 32 175 5 8.4 +0.076
1N963BUR-1 12 10.5 11.5 700 .25 31 160 5 9.1 +0.077
1N964BUR-1 13 9.5 13 700 .25 28 150 5 9.9 +0.079
1N965BUR-1 15 8.5 16 700 .25 25 130 5 11.4 +0.082
1N966BUR-1 16 7.8 17 700 .25 24 120 5 12.2 +0.083
1N967BUR-1 18 7.0 21 750 .25 20 110 5 13.7 +0.085
1N968BUR-1 20 6.2 25 750 .25 18 100 5 15.2 +0.086
1N969BUR-1 22 5.6 29 750 .25 16 90 5 16.7 +0.087
1N970BUR-1 24 5.2 33 750 .25 15 80 5 18.2 +0.088
1N971BUR-1 27 4.6 41 750 .25 13 70 5 20.6 +0.090
1N972BUR-1 30 4.2 49 1000 .25 12 65 5 22.8 +0.091
1N973BUR-1 33 3.8 58 1000 .25 11 60 5 25.1 +0.092
1N974BUR-1 36 3.4 70 1000 .25 10 55 5 27.4 +0.093
1N975BUR-1 39 3.2 80 1000 .25 9.5 46 5 29.7 +0.094
1N976BUR-1 43 3.0 93 1000 .25 8.8 44 5 32.7 +0.095
1N977BUR-1 47 2.7 105 1500 .25 7.9 40 5 35.8 +0.095
1N978BUR-1 51 2.5 125 1500 .25 7.4 37 5 38.8 +0.096
1N979BUR-1 56 2.2 150 2000 .25 6.8 35 5 42.6 +0.096
1N980BUR-1 62 2.0 185 2000 .25 6.0 30 5 47.1 +0.097
1N981BUR-1 68 1.8 230 2000 .25 5.5 28 5 51.7 +0.097
1N982BUR-1 75 1.7 270 2000 .25 5.0 26 5 56.0 +0.098
1N983BUR-1 82 1.5 330 3000 .25 4.6 23 5 62.2 +0.098
1N984BUR-1 91 1.4 400 3000 .25 4.1 21 5 69.2 +0.099
1N985BUR-1 100 1.3 500 3000 .25 3.7 18 5 76.0 +0.11
1N986BUR-1 110 1.1 750 4000 .25 3.3 16 5 83.6 +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: 4/18/2012
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 2012 Aeroflex / Metelics. All rights reserved.
www.aeroflex.com/metelics metelics-sales@aeroflex.com
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1N957BUR-1 thru 1N986BUR-1
Outline Drawing
Graphs
LEADED DESIGN DATA
CASE: DO-213AA, Hermetically sealed glass case. (MELF, SOD-80, LL34)
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (RӨJEC): 100 ˚C/W maximum at L = 0 inch
THERMAL IMPEDANCE: (ZӨJX): 25 ˚C/W maximum
POLARITY: Diode to be operated with the banded (cathode) end positive.
MOUNTING POSITION: Any.
MOUNTING SURFACE SELECTION: The Axial Coefficient of Expansion (COE) Of
this Device is Approximately +6 PPM/°C. The COE of the Mounting Surface
System Should Be Selected To Provide A Suitable Match With This Device.
D
G
G1
F
S
