Silicon Zener Diode Series 1N957B thru 1N986B 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. Maximum Ratings Operating & Storage Temperature: -65C to +175C Thermal Resistance: 250C/W Steady-State Power: 0.5 watts Foward Voltage @200 MA: 1.1 V for 1N 975B - 1N985B 1.3 V for 1N985 - 1N992B Electrical Specifications @ +25 C (Unless Otherwise Specified) JEDEC TYPE Number Normal Zener Voltage Vz Zener Test Current IZT ZZT @ IZT ZZK (Note1) Volts mA Ohms Ohms 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 100 110 18.5 16.5 15.0 14.0 12.5 11.5 10.5 9.5 8.5 7.8 7.0 6.2 5.6 5.2 4.6 4.2 3.8 3.4 3.2 3.0 2.7 2.5 2.2 2.0 1.8 1.7 1.5 1.4 1.3 1.1 4.5 5.5 6.5 7.5 8.5 9.5 11.5 13 16 17 21 25 29 33 41 49 58 70 80 93 105 125 150 185 230 270 330 400 500 750 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1000 1500 1500 2000 2000 2000 2000 3000 3000 3000 4000 1N957B 1N958B 1N959B 1N960B 1N961B 1N962B 1N963B 1N964B 1N965B 1N966B 1N967B 1N968B 1N969B 1N970B 1N971B 1N972B 1N973B 1N974B 1N975B 1N976B 1N977B 1N978B 1N979B 1N980B 1N981B 1N982B 1N983B 1N984B 1N985B 1N986B NOTE 1: Maximum Zener Impedance @ Maxmum Surge Current IZK Maximum DC Zener Current IZM mA mA mA A Volts %/C 1.0 .5 .5 .5 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 55 50 45 41 38 32 31 28 25 24 20 18 16 15 13 12 11 10 9.5 8.8 7.9 7.4 6.8 6.0 5.5 5.0 4.6 4.1 3.7 3.3 300 275 250 225 200 175 160 150 130 120 110 100 90 80 70 65 60 55 46 44 40 37 35 30 28 26 23 21 18 16 150 75 50 25 10 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 5.2 5.7 6.2 6.9 7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56.0 62.2 69.2 76.0 83.6 +0.05 +0.058 +0.065 +0.068 +0.075 +0.076 +0.077 +0.079 +0.082 +0.083 +0.085 +0.086 +0.087 +0.088 +0.090 +0.091 +0.092 +0.093 +0.094 +0.095 +0.095 +0.096 +0.096 +0.097 +0.097 +0.098 +0.098 +0.099 +0.11 +0.11 IZSM Maximum Reverse Leakage IR @ VR Maximum Temperature Coefficient VZ 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%. Revision Date: 7/2/2012 1 1N957B thru 1N986B Outline Drawing LEADED DESIGN DATA 0.080 MAX 2.03 DIA CASE: Hermetically sealed, DO - 35 1.000 MIN 25.400 LEAD MATERIAL: Copper clad steel LEAD FINISH: Tin / Lead POLARITY BAND (CATHODE) 0.018 / 0.022 DIA 0.457 / 0.559 0.175 MAX 4.44 1.000 MIN 25.400 THERMAL RESISTANCE: (RJEC): 70 C/W maximum at L = 0.375 in THERMAL IMPEDANCE: (ZJX): 12 C/W maximum POLARITY: Cathode end is banded. MOUNTING POSITION: Any All dimensions in INCH mm Graphs Aeroflex / Metelics, Inc. 975 Stewart Drive, Sunnyvale, CA 94085 Tel: (408) 737-8181 Fax: (408) 733-7645 ISO 9001: 2008 certified companies 54 Grenier Field Road, Londonderry, NH 03053 Tel: (603) 641-3800 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 www.aeroflex.com/metelics metelics-sales@aeroflex.com 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. Revision Date: 7/2/2012 Our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused.