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| MOTOROLA SEMICONDUCTOR TECHNICAL DATA Temperature-Compensated Zener Reference Diodes Temperature-compensated zener reference diodes utilizing a single chip oxide passivated junction for long-term voltage stability. A rugged, glass-enclosed, hermetically sealed structure. Mechanical Characteristics: CASE: Hermetically sealed, all-glass DIMENSIONS: See outline drawing. FINISH: All external surfaces are corrosion resistant and leads are readily solderable. POLARITY: Cathode indicated by polarity band. WEIGHT: 0.2 Gram (approx.) MOUNTING POSITION: Any Maximum Ratings Junction Temperature: - 55 to +175C Storage Temperature: - 65 to +175C DC Power Dissipation: 400 mW @ TA = 50C WAFER FAB LOCATION: Phoenix, Arizona ASSEMBLY/TEST LOCATION: Phoenix, Arizona 1N821,A 1N823,A 1N825,A 1N827,A 1N829,A TEMPERATURECOMPENSATED SILICON ZENER REFERENCE DIODES 6.2 V, 400 mW CASE 299 DO-204AH GLASS ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted. VZ = 6.2 V 5%* @ IZT = 7.5 mA) (Note 5) Maximum Voltage Change VZ (Volts) (Note 1) Ambient Test Temperature C 1C Temperature Coefficient For Reference Only %/C (Note 1) Maximum Dynamic Impedance ZZT Ohms (Note 2) JEDEC Type No. 1N821 1N823 1N825 1N827 1N829 0.096 0.048 0.019 0.009 0.005 - 55, 0, +25, +75, +100 0.01 0.005 0.002 0.001 0.0005 15 1N821A 1N823A 1N825A 1N827A 1N829A 0.096 0.048 0.019 0.009 0.005 0.01 0.005 0.002 0.001 0.0005 10 *Tighter-tolerance units available on special request. Motorola TVS/Zener Device Data 6.2 Volt OTC 400 mW DO-35 Data Sheet 8-159 1N821,A 1N823,A 1N825,A 1N827,A 1N829,A MAXIMUM VOLTAGE CHANGE versus AMBIENT TEMPERATURE (with IZT = 7.5 mA 0.01 mA) (See Note 3) 1N821 through 1N829 25 1N821,A 20 15 1N823,A 10 25 1N825,A 1N827,A 0 1N829,A 1N827,A -25 -50 VZ = -31 mV 1N825,A -10 1N823,A -15 -20 1N821,A -10 -55 0 0 50 100 1N821,A -25 -55 TA, AMBIENT TEMPERATURE (C) 1N825,A 1N823,A 0 50 100 5 0 -5 1N829,A 1N827,A 1N827,A 1N829,A 1N823,A 1N825,A 100 IZT = 7.5 mA 75 VZ , MAXIMUM VOLTAGE CHANGE (mV) (Referenced to -55 C) 50 VZ = +31 mV 1N821,A -75 Figure 1a Figure 1b ZENER CURRENT versus MAXIMUM VOLTAGE CHANGE (At Specified Temperatures) (See Note 4) MORE THAN 95% OF THE UNITS ARE IN THE RANGES INDICATED BY THE CURVES. 10 9 I Z , ZENER CURRENT (mA) -55C 10 +100C 9 +25C I Z , ZENER CURRENT (mA) 8 7.5 7 6 +100C 5 +25C -55C IZT +100C 8 7.5 7 6 +100C 5 4 -75 IZT +25C -55C +25C -55C -50 -25 0 25 50 4 -75 -50 -25 0 25 50 VZ, MAXIMUM VOLTAGE CHANGE (mV) (Referenced to IZT = 7.5 mA) VZ, MAXIMUM VOLTAGE CHANGE (mV) (Referenced to IZT = 7.5 mA) Figure 2. 1N821 Series Figure 3. 1N821A Series Devices listed in bold, italic are Motorola preferred devices. 6.2 Volt OTC 400 mW DO-35 Data Sheet 8-160 Motorola TVS/Zener Device Data 1N821,A 1N823,A 1N825,A 1N827,A 1N829,A MAXIMUM ZENER IMPEDANCE versus ZENER CURRENT (See Note 2) MORE THAN 95% OF THE UNITS ARE IN THE RANGES INDICATED BY THE CURVES. ZZ , MAXIMUM ZENER IMPEDANCE (OHMS) 1000 800 600 400 200 100 80 60 40 20 10 8 6 4 2 1 1 2 4 6 8 10 20 40 60 80 100 IZ, ZENER CURRENT (mA) 100C 25C -55C ZZ , MAXIMUM ZENER IMPEDANCE (OHMS) 1000 800 600 400 200 100 80 60 40 20 10 8 6 4 2 1 1 2 4 6 8 10 20 40 60 80 100 IZ, ZENER CURRENT (mA) -55C 25C 100C Figure 4. 1N821 Series Figure 5. 1N821A Series NOTE 1. VOLTAGE VARIATION (VZ) AND TEMPERATURE COEFFICIENT All reference diodes are characterized by the "box method." This guarantees a maximum voltage variation (VZ) over the specified temperature range, at the specified test current (IZT), verified by tests at indicated temperature points within the range. VZ is measured and recorded at each temperature specified. The VZ between the highest and lowest values must not exceed the maximum VZ given. This method of indicating voltage stability is now used for JEDEC registration as well as for military qualification. The former method of indicating voltage stability -- by means of temperature coefficient accurately reflects the voltage deviation at the temperature extremes, but is not necessarily accurate within the temperature range because reference diodes have a nonlinear temperature relationship. The temperature coefficient, therefore, is given only as a reference. NOTE 3. These graphs can be used to determine the maximum voltage change of any device in the series over any specific temperature range. For example, a temperature change from 0 to +50C will cause a voltage change no greater than +31 mV or - 31 mV for 1N821 or 1N821A, as illustrated by the dashed lines in Figure 1. The boundaries given are maximum values. For greater resolution, an expanded view of the center area in Figure 1a is shown in Figure 1b. NOTE 4. The maximum voltage change, VZ, Figures 2 and 3 is due entirely to the impedance of the device. If both temperature and IZT are varied, then the total voltage change may be obtained by graphically adding VZ in Figure 2 or 3 to the VZ in Figure 1 for the device under consideration. If the device is to be operated at some stable current other than the specified test current, a new set of characteristics may be plotted by superimposing the data in Figure 2 or 3 on Figure 1. For a more detailed explanation see application note in later section. NOTE 5. Zener voltage limits at 25C measured with the test current (IZT) applied with the device junction in thermal equilibrium at an ambient temperature of 25C. NOTE 2. The dynamic zener impedance, ZZT, is derived from the 60 Hz ac voltage drop which results when an ac current with an rms value equal to 10% of the dc zener current, IZT, is superimposed on IZT. Curves showing the variation of zener impedance with zener current for each series are given in Figures 4 and 5. Motorola TVS/Zener Device Data 6.2 Volt OTC 400 mW DO-35 Data Sheet 8-161 Zener Voltage Reference Diodes 6.2 Volt OTC 400 mW DO-35 B D F K NOTES: 1. PACKAGE CONTOUR OPTIONAL WITHIN A AND B HEAT SLUGS, IF ANY, SHALL BE INCLUDED WITHIN THIS CYLINDER, BUT NOT SUBJECT TO THE MINIMUM LIMIT OF B. 2. LEAD DIAMETER NOT CONTROLLED IN ZONE F TO ALLOW FOR FLASH, LEAD FINISH BUILDUP AND MINOR IRREGULARITIES OTHER THAN HEAT SLUGS. 3. POLARITY DENOTED BY CATHODE BAND. 4. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. MILLIMETERS MIN MAX 3.05 5.08 1.52 2.29 0.46 0.56 -- 1.27 25.40 38.10 INCHES MIN MAX 0.120 0.200 0.060 0.090 0.018 0.022 -- 0.050 1.000 1.500 A DIM A B D F K K F All JEDEC dimensions and notes apply. CASE 299-02 DO-204AH GLASS (Refer to Section 10 for Surface Mount, Thermal Data and Footprint Information.) MULTIPLE PACKAGE QUANTITY (MPQ) REQUIREMENTS Package Option Tape and Reel Tape and Ammo Type No. Suffix RL, RL2(1) TA, TA2(1) MPQ (Units) 5K 5K NOTE: 1. The "2" suffix designates 26 mm tape spacing. (Refer to Section 10 for more information on Packaging Specifications.) Motorola TVS/Zener Device Data 6.2 Volt OTC 400 mW DO-35 Data Sheet 8-162 |
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