Temperature Compensated Zener Reference Diode Series 1N821A thru 1N829A & 1N821-1 thru 1N829-1 Features 1N821-1, 1N823-1, 1N825-1, 1N827-1 and 1N829-1 available in JAN, JANTX, JANTXV, JANS Metallurgically Bonded, Double Plug Construction Maximum Ratings Operating & Storage Temperature: -65C to +175C DC Power Dissipation: 500mW +50C Power Derating: 4 mW / C above +50C REVERSE LEAKAGE CURRENT l = 2 A 25C & V = 3 Vdc R R Electrical Specifications +25 C (Unless Otherwise Specified) Normal Zener Maximum Zener Voltage Temperature Effective JEDEC Zener Test Impedance Stability Temperature TYPE Voltage Current (Note 1) V Coefficient ZT Number V I I Z z ZT ZT ZT -55 to +100C (Note 2) (Note1) Volts mA Ohms mV %/C 1N821 5.96.5 7.5 15 96 0.01 1N821A 5.96.5 7.5 10 96 0.01 1N823 5.96.5 7.5 15 48 0.005 1N823A 5.96.5 7.5 10 48 0.005 1N825 5.96.5 7.5 15 19 0.002 1N825A 5.96.5 7.5 10 19 0.002 1N826 6.26.9 7.5 15 20 0.002 1N827 5.96.5 7.5 15 9 0.001 1N827A 5.96.5 7.5 10 9 0.001 1N828 6.26.9 7.5 15 10 0.001 1N829 5.96.5 7.5 15 5 0.0005 1N829A 5.96.5 7.5 10 5 0.0005 NOTE 1: Zener impedance is derived by superimposing on l A 60Hz rms a.c. current equal to 10% of l ZT ZT. NOTE 2: The maximum allowable change observed over the entire temperature range i.e., the diode voltage will not exceed the specified mV at any discrete temperature between the established limits, per JEDEC standard No. 5. Outline Drawing LEADED DESIGN DATA 0.080 MAX CASE: Hermetically sealed, DO 35 2.03 DIA 1.000 MIN 25.400 LEAD MATERIAL: Copper clad steel LEAD FINISH: Tin / Lead 0.175 POLARITY MAX POLARITY: Cathode end is banded. 4.44 BAND (CATHODE) MOUNTING POSITION: Any 1.000 MIN 25.400 0.018 / 0.022 DIA 0.457 / 0.559 INCH All dimensions in mm 1 Revision Date: 11/6/2014 1N821A thru 1N829A and 1N821-1 thru 1N829A-1 Graphs 500 +.0010 +.0005 100 600 0 500 50 -.0005 400 300 -.0010 200 100 10 0 25 50 100 150 175 5 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 T , Lead temperature (C) 3/8 from body L OPERATING CURRENT l (mA) ZT POWER DERATING CURVE 1 TYPICAL CHANGE OF TEMPERATURE 56 7 8 9 10 COEFFICIENT WITH CHANGE IN OPERATING CURRENT l (mA) ZT OPERATING CURRENT ZENER IMPEDANCE VS. OPERATING CURRENT Aeroflex / Metelics, Inc. ISO 9001: 2008 certified companies 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 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 Our passion for performance is defined by three attributes represented by these three icons: under any patent rights, copyrights, trademark rights, or any other of the intellectual rights solution-minded, performance-driven and customer-focused. of Aeroflex or of third parties. Copyright 2010 Aeroflex / Metelics. All rights reserved. Revision Date: 11/6/2014 Pd, Rated Power Dissipation (mW) ZENER IMPEDANCE Z (OHMS) ZT CHANGE IN TEMPERATURE COEFFICIENT ( %/C)