Zener Diode Chip Series CD957B thru CD986B Available in JANHC and JANKC per MIL-PRF-19500/117 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 Maximum Ratings Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C Forward Voltage @ 200mA: 1.5 volts maximum Electrical Specifications @ +25 C (Unless Otherwise Specified) TYPE NUMBER NOMINAL ZENER VOLTAGE VZ ZENER TEST CURRENT l ZT (NOTE 1) MAXIMUM ZENER IMPEDANCE (NOTE 2) ZZT @ l ZT MAXIMUM DC ZENER CURRENT l ZM MAXIMUM REVERSE LEAKAGE CURRENT lR @ VR ZZK @ l ZK VOLTS mA OHMS OHMS mA mA A VOLTS CD957B CD958B CD959B CD960B CD961B 6.8 7.5 8.2 9.1 10 18.5 16.5 15.0 14.0 12.5 4.5 5.5 6.5 7.5 8.5 700 700 700 700 700 1.0 0.5 0.5 0.5 0.25 55 50 45 41 38 5.0 5.0 5.0 5.0 2.0 5.2 5.7 6.2 6.9 7.6 CD962B CD963B CD964B CD965B CD966B 11 12 13 15 16 11.5 10.5 9.5 8.5 7.8 9.5 11.5 13 16 17 700 700 700 700 700 0.25 0.25 0.25 0.25 0.25 32 31 28 25 24 1.0 1.0 0.5 0.5 0.5 8.4 9.1 9.9 11 12 CD967B CD968B CD969B CD970B CD971B 18 20 22 24 27 7.0 6.2 5.6 5.2 4.6 21 25 29 33 41 750 750 750 750 750 0.25 0.25 0.25 0.25 0.25 20 18 16 15 13 0.5 0.5 0.5 0.5 0.5 14 15 17 18 21 CD972B CD973B CD974B CD975B CD976B 30 33 36 39 43 4.2 3.8 3.4 3.2 3.0 49 58 70 90 93 1000 1000 1000 1000 1500 0.25 0.25 0.25 0.25 0.25 12 11 10 9.5 8.8 0.5 0.5 0.5 0.5 0.5 23 25 27 30 33 CD977B CD978B CD979B CD980B CD981B 47 51 56 62 68 2.7 2.5 2.2 2.0 1.8 105 125 150 185 230 1500 1500 2000 2000 2000 0.25 0.25 0.25 0.25 0.25 7.9 7.4 6.8 6.0 5.5 0.5 0.5 0.5 0.5 0.5 36 39 43 47 52 CD982B CD983B CD984B CD985B CD986B 75 82 91 100 110 1.7 1.5 1.4 1.3 1.1 270 330 400 500 750 2000 3000 3000 3000 4000 0.25 0 .25 0.25 0.25 0.25 5.0 4.6 4.1 3.7 3.3 0.5 0.5 0.5 0.5 0.5 56 62 69 76 84 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. 1 Revision Date: 12/13/2011 New Product CD957B thru CD986B Outline Drawing DESIGN DATA Anode METALLIZATION: Top: Back: (Anode) Al (Cathode) Au AL THICKNESS: 25,000 A Minimum GOLD THICKNESS: 4,000 A Minimum CHIP THICKNESS: 10 Mils CIRCUIT LAYOUT DATA: For Zener operation, cathode must be operated positive with respect to anode. Graphs 1000 500 400 300 3. 3 VO LT 27 VO LT 1 100 5. LT VO ZENER IMPEDANCE ZZT (OHMS) 200 50 40 30 11 20 VO LT 10 6.2 5 4 3 VO LT 2 1 .1 .2 .3 .4 .5 1 2 5 10 20 OPERATING CURRENT lZT (mA) 30 40 50 100 ZENER IMPEDANCE VS. OPERATING CURRENT 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 2011 Aeroflex / Metelics. All rights reserved. Revision Date: 12/13/2011 Our passion for performance is defined by three attributes represented by these three icons: solution-minded, performance-driven and customer-focused.