MOTOROLA SC {DIODES/OPTOF L2E Df) 6367255 oo7sa4e ag JT lel MOTOROLA a SEMICONDUCTOR Ne TECHNICAL DATA 1N5221A, B Designer's Data Sheet thru 500 Milliwatt 1N5281A, B Hermetically Sealed Glass Silicon Zener Diodes GLASS ZENER DIODES 2.4-200 VOLTS Complete Voltage Range 2.4 to 200 Volts DO-204AH Package Smaller than Conventional DO-204AA Package @ Double Slug Type Construction @ Metallurgically Bonded Construction Mechanical Characteristics: CASE: Double slug type, hermetically sealed glass MAXIMUM LEAD TEMPERATURE FOR SOLDERING PURPOSES: 230C, 1/16 from case for 10 seconds . FINISH: All external surfaces are corrosion resistant with readily solderable leads POLARITY: Cathode indicated by color band. When operated in zener mode, cathode will be positive with respect to anode MOUNTING POSITION: Any OUTLINE DIMENSIONS 07 06 Lo | Ky Th Pp, MAXIMUM POWER DISSIPATION (WATTS) 04 03 t K 02 0.4 9 KOTES 0 m0 6 8 100 120 140 160 180 20 Tuc cont oro HTN B08 9 HEAT SLUGS, IF ANY, INCLUDED T,, LEAD TEMPERATURE (C) WATHIN THIS CYLINDER, BUT NOT SUBJECT TO THEMINUM LET OB sone FTO LEAD DAMETER NOT CO! h Figure 1. Steady State Power Derating 2 Et ae I TN aoe AND MGNOR ERAEGULARITIES OTHER THAN HEAT SLUGS. 3, POLARITY DENOTED BY CATHODE BAND. *MAXIMUM RATINGS 4 DMENSHORING AND TOLERANCING PER ANSIYIAS, 1973. Rating Symbol Value Unit DC Power Dissipation @ Ty, = 75C Pp Lead Length = 3/8 500 mw Derate above T, = 75C 4 mWPrc Operating and Storage Junction Temperature Range Ty, Tstg |68 to +200 c = a "Indicates JEDEC Registered Data Designer's Data for Worst Case Conditions The Designer's Data Sheet permits the design of most circuits CASE 299-02 entirely from the information presented. Limit curves rep ing boundaries on device ch istics are DO-204AH give to facilitate worst case design. 4-40EEE EEE EEE + MOTOROLA SC TDIODES/OPTON ye ppyy 12E D Bf b36725s OO?79444 g i 1N5221A, B thru 1N5281A, B ELECTRICAL CHARACTERISTICS (Ta = 26C unless otherwise noted. Based on dc mea length = 3/8"; thermal resistance of heat sink = 30C/W) V a surements at thermal equilibrium; lead F = 1.1 max @ IF = 200 mA for all types. Max Zener [i d Max Reverse Leakage Current Nominal r Max Zener Voltage Zener Voltage | Test A and B Suffix onty A and B Suffix only] Non-Suffix Temp Coeff. JEDEC Vz@'zy_ | Current lq Va 'R @ Vp Used | (A and B Suffix only} Type No. Volts lzr_ | 2zr @ Izy |2zx @ lax = 0.25 mAl pA Volts for Suffix A Oyz (%C) (Note 1) (Note 2) mA Ohms Ohms A 5 HA {Note 3) 1N5221 2.4 20 30 1200 100 |; 0.95] 1 200 0.085 1N5222 2.5 20 30 1250 100 | 0.95) 1 200 ~ 0.085 1N5223 27 20 30 1300 75 | 0.95 1 150 0.080 1N5224 2.8 20 30 1400 75 1095] 1 150 0.080 1N5225 3 20 29 1600 50 |0.95| 1 100 0.075 1N5226 3.3 20 28 1600 25/095] 1 100 0.070 1N5227 3.6 20 24 1700 16 |0.95| 1 100 ~0.065 1N5228 3.9 20 23 1900 10 | 0.95} 1 75 0.060 1N5229 43 20 22 2000 5 10.95] 1 60 +0.055 1N5230 47 20 19 1900 5 | 19] 2 50 +0.030 1N5231 5.1 20 7 1600 6 119] 2 50 +0.030 1N5232 5.6 20 1 1600 5 |29 | 3 50 +0.038 1N5233 8 20 7 1600 5 | 33] 35 50 +0.038 1N5234 6.2 20 7 1000 5 | 38 | 4 50 +0.045 1N5235 68 20 5 750 3, 48] 5 30 +0.050 1N5236 75 20 6 500 3) 57] 6 30 +0.058 1N5237 8.2 20 8 500 3 62 | 6.5 30 +0.062 1N5238 8.7 20 8 600 3 / 62 | 65 30 +0.065 1N5239 9.1 20 10 600 3) 674 7 30 +0.068 1N5240 10 20 17 600 3 7.6 8 30 +0.075 1N5241 11 20 22 600 2 8 8.4 30 +0.076 1N5242 12 20 30 600 1 8.7 | 9.1 10 +0.077 1N5243 13 9.5 13 600 05 | 94] 99 10 +0.079 1N5244 14 9 15 600 01 | 95 10 10 +0.082 1N5245 15 8.5 16 600 0.1 | 10.5] 11 10 +0.082 1N5246 16 7.8 17 600 0.1 | 11.4} 12 10 +0.083 1N5247 7 7.4 19 600 0.1 | 124] 13 10 +0.084 1N5248 18 7 21 600 0.1 (13.3) 14 10 +0.085 1N5249 19 6.6 23 600 0.1 1133) 14 10 +0.086 1N5250 20 6.2 25 600 0.1 {143 ] 15 10 +0.086 1N5251 22 5.6 29 600 01 | 162] 17 10 +0.087 1N5252 24 5.2 33 600 0.1/7 17.1] 18 10 +0.088 1N5253 25 5 35 600 0.1 | 181) 19 10 +0.089 1N5254 27 4.6 41 600 0.1 20 21 10 +0.090 1N5255 28 45 44 600 0.1 | 20 | 21 10 +0.091 1N5256 30 42 49 600 0.1 | 22 | 23 10 +0.091 1N5257 33 3.8 58 700 01 | 24 | 25 10 +0.092 N5258 36 3.4 70 700 0.1 | 26 | 27 10 +0.093 1N5259 a9 3.2 80 800 0.1 | 29 | 30 10 +0.084 1N5260 43 3 93 900 0.1 | 31 | 33 10 +0.095 1N5261 47 27 105 1000 0.1 | 34 | 36 10 +0,095 1N5262 51 2.6 125 1100 0.1 37 39 10 +0.096 1N5263 56 2.2 160 1300 0.1 41 8 190 +0.096 1N5264 60 21 170 1400 0.1 | 44 | 46 10 +0.097 1N5265 62 2 185 1400 0.1 | 45 | 47 10 +0.097 1N5266 68 1.8 230 1600 0.1 49 52 10 +0,097 1N5267 75 17 270 1700 0.1 | 53 | 56 10 +0.098 1N5268 82 15 330 2000" 0.1 59 62 10 +0.098 1N5269 87 14 370 2200 0.1 65 68 10 +0.089 1N5270 91 1.4 400 2300 0.1 | 66 | 69 10 +0.099 1N5271 100 1.3 500 2600 0.1 72 76 10 +0.110 1N5272 110 1.1 750 3000 0.1 80 84 10 +0.110 1N5273 120 1 300 4000 0.1 88 91 10 +0.110 1N5274 130 0.95 1100 4500 0.1 94 s9 10 +0.110 1N5275 149 0.9 1300 4500 0.1 | 101 | 106 10 +0.110 1N5276 150 0.85 1500 5000 0.1 | 108 | 114 10 +0.710 1N5277 160 0.8 1700 5500 0.1 | 116 | 122 10 +0.110 1N5278 170 0.74 1900 5500 0.4 | 116 | 129 10 +9.110 1N5279 180 0.68 2200 6000 0.1 | 130 | 137 10 +0.110 1N5280 190 0.66 2400 6500 0.1 | 137 | 144 10 +0.110 1N5281 200 0.65 2500 7000 0.1 | 144 | 162 10 +0.110 4-41a EEOeeeO | MOTOROLA ROLA SC {DIODES/OPTOF yr ppgpize D i b367255 Go7dasu b i 1N5221A, B thru 1N5281A, B . NOTE 1. Tolerance ~ The JEDEC type numbers, shown indicate 2 tol- Surge limitations are given in Figure 7. They are lower erance of + with guaranteed limits on only Vz, Ip and VF as shown ara : In the electrical characteristics table, Units with guaranteed limits on than would be expected by considering only junction all six parameters are indicated by suffix A for + 10% tolerance, suffix temperature, as current crowding effects cause temper- "BY for 5%, "C" for 2% and D for 21%. atures to be extremely high in small spots, resulting in NOTE 2. Special Selectionst Avallable Include: device degradation should the iimits of Figure 7 be 1. Nominal zener voltagas between those shown. exceeded. 2. Two or more units for series connection with specified tolerance on total voltage. Series matched sets make zener voltages in excess of 200 volts possible as well as providing lower temperature cosfficients, lower dynamic impedance and greater power handling ability. 3. Nominal voltages at non-standard test currents. 500 400 NOTE 3. Temperature Coefficient (0yz) Test conditions for tamper- ature coefficient are as follows: a. Izt = 7.5 mA, Ty = 25C, T2 = 125C (1N5221A,8 through 1N5242A,B). b. Iz7 = Rated Izy, T1 = 25C, Tp = 128C (1N5243A,B through 1N5272A,B). Device to be temperature stabilized with current applied prior to read- ing breakdown voltage at the specified ambient temperature. fee] te NOTE 4. Zener Voltage {Vz} Mi it inal zener 9 is measured with the device junction in thermal equilibrium at the lead temperature of 30C 1C and 3/8" lead langth. NOTE 5. Zener Impedance (Zz) Derivation Z7T and Z2K are mea- sured by dividing the ac voltage drop across the device by the ac current 0 02 04 0.6 08 applied. The specified limits areforlz{ac) = Iz(dc) with the ac frequency * . * . = 60 Hz. L, LEAD LENGTH TO HEAT SINK (INCH) 0.5L, JUNCTION-TO-LEAD THERMAL RESISTANCE CCM) +For more information on speciat selections contact your nearest Motorola representative. Figure 2. Typical Thermal Resistance APPLICATION NOTE Since the actual voltage available from a given zener 10000 diode is temperature dependent, it is necessary to deter- 7000 mine junction temperature under any set of operating 5000 TYPICAL LEAKAGE CURRENT conditions in order to calculate its value. The following 2000 AT 80% OF NOMINAL procedure is recommended: BREAKDOWN VOLTAGE Lead Temperature, Ti, should be determined from: TL = OLAPD + Ta: 6La is the lead-to-ambient thermal resistance (C/W) and Pp is the power dissipation. The value for 6La will vary and depends on the device mounting method. @La is generally 30 to 40C/W for the various clips and tie points in common use and for printed circuit board wiring. The temperature of the lead can also be measured using a thermocouple placed on the lead as close as possible to the tie point. The thermal mass connected to the tie point is normally large enough so that it will not significantly respond to heat surges generated in the diode as a result of pulsed operation once steady-state conditions are achieved. Using the measured value of TL the junction temperature may be determined by: Ty = TL + ATUL + 125C ATyL is the increase in junction temperature above the lead temperature and may be found from Figure 2 for de power: Ip, LEAKAGE CURRENT {HA} ATjL = 9JLPD- For worst-case design, using expected limits of Iz, lim- its of Pp and the extremes of T (AT) may be estimated. Changes in voltage, Vz, can then be found from: AV = 6yZATy. 6yz. the zener voltage temperature coefficient, is found from Figures 4 and 5. Under high power-pulse operation, the zener voltage 3 4 8 6 7 8 $ HN 2 B MW 1 will vary with time and may also be affected significantly Vz, NOMINAL ZENER VOLTAGE (VOLTS) by the zener resistance. For best regutation, keep current excursions as low as possible. Figure 3. Typical Leakage Current 4-42oats = win 1N5221A, B thru 1N5281A, B C, CAPACITANCE (pF} OVz, TEMPERATURE COEFFICIENT (mV/C) MOTOROLA SC EDIODES/OPTOE A yyy Lee Df b367255 oorsas1 3 i TEMPERATURE COEFFICIENTS (-55C to + 150C temperature range; 90% of the units are in the ranges indicated.) +12 +10 +8 +6 +4 +2 -2 2 3. 64 5 6 7 8 0 HW 12 Vz, ZENER VOLTAGE {VOLTS) Figure 4a. Range for Units to 12 Volts 8 s & & g Vz @ Izy Vz, TEMPERATURE COEFFICIENT (mv/C) 3 190 140 150 160 = 170 180 190 = 200 Vz, ZENER VOLTAGE (VOLTS) Figure 4c. Range for Units 120 to 200 Volts 1 2 10 20 50 10 Vz, ZENER VOLTAGE (VOLTS) Figure 6a. Typical Capacitance 1-100 Voits 8 8 33a @Vz, TEMPERATURE COEFFICIENT (mV/C} yo wns 10 20 H 50 1 100 Vz, ZENER VOLTAGE (VOLTS) Figure 4b. Range for Units 12 to 100 Volts +6 So S } By Ww@lz S Ts = 25C = | +2 8 20 mA of | = WK 6 0 4 & ~ Rootrma = Od Ni mi a7 NOTE: BELOW 3 VOLTS AND ABOVE 8 VOLTS 1 z CHANGES IN ZENER CURRENT DO NOT 4 4 | AFFECT TEMPERATURE COEFFICIENTS 3 4 6 7 8 Vz, ZENER VOLTAGE (VOLTS) Figure 5. Effect of Zener Current C, CAPACITANCE {pF} sos. 8s8 33 Ro ams 200 Vz, ZENER VOLTAGE (VOLTS) Figure 6b. Typical Capacitance 120-220 Volts 4-431N5221A, B thru 1N5281A, B 100 70 Pp, PEAK SURGE POWER (WATTS) nwo and _ 0.01 0.02 0.05 01 02 Os 1 RECTANGULAR WAVEFORM Ty = 25C PRIOR TO INITIAL PULSE 2 5 10 20 50 100 200 500 PW, PULSE WIDTH (ms) Figure 7a. Maximum Surge Power 2.4-9 Voits 1000 700 500 300 RECTANGULAR 2 20 WAVEFORM, Ty = 25C =x = 100 & 70 = 2 x 100-200 VOLTS NONREPETITIVE Ww g n 2B Ms a x a ~ 2 1 0.01 0.1 1 10 100 PW, PULSE WIDTH (ms} Figure 7b. Maximum Surge Power DO-204AH 100-200 Volts Ty = 25C iztrms} = 0.4 izide) f = G0 Hz 2z, DYNAMIC IMPEDANCE (OHMS) 1000 O1 02 05 1 q 0 2 80 100 (z, ZENER CURRENT (mA) Figure 8. Effect of Zener Current on Zener Impedance 10,000 Ty = 25C 5000 a izirms} = 0.t Iz{de) = 2000 = = = f = 60 Hz 1000 Ss s 8 2 500 a = a g 3 a 10 a 5 2 1 1 2 3 # 7 10 2 30 680 (70 10 0 20 40 60 80 100 Vz, ZENER VOLTAGE {VOLTS} Figure 9. Effect of Zener Voltage on Zener Impedance Vz, ZENER VOLTAGE (VOLTS) Figure 10. Typical Noise DensityEERE MOTOROLA SC TDIODES/OPTOF TE yyy) LeE D B b3b7255 Q079853 7 i 1N5221A, B thru 1N5281A, B yy LOAD AMPLIFIER = MINIMUM RESISTOR + mun MAXIMUM vam | | mei a OC POWER 4 =e Yor | your = = = SUPPLY ent | METER & NOISE DENSITY V 3 = Yot IVORTS PER SQUARE ROOT BANDWADTH) = === out Ti z WHERE: SW = FILTER BANDWIDTH (Hz) S Vout = OUTPUT NOISE (VOLTS RMS) i The input voltage and load resistance are high so that the zener diade is driven from a constant current source. The amptifier Is low orc noise so that the amplifier noise is negligible compared to that of the test zener. The filtar bandpass is known so that the noise density 04 05 06 07 08 09 1 rR can be calculated from the formula shown. Vp. FORWARD VOLTAGE (VOLTS) Figure 11. Noise Density Measurement Method Figure 12. Typical Forward Characteristics oA [ Hf | MTT TT LI : j / 0.01 / 1 4 5 6 7 8 9 10 " 12 13 14 16 16 Vz, ZENER VOLTAGE tVOLTS} Figure 13. Zener Voltage versus Zener Current Vz = 1 thru 16 Volts Iz, ZENER CURRENT (mA) ae wo Ta = 28C 12, ZENER CURRENT (mA} 01 001 1 16 17 18 i9 20 at 22 23 26 25 26 27 28 2 = 30 Vz, ZENER VOLTAGE {VOLTS} Figure 14. Zener Voltage versus Zener Current Vz = 15 thru 30 Volts 4-45MOTOROLA SC {DIODES/OPTOI I py 12E gg 6367255 00794854 ig 1N5221A, B thru 1N5281A, B a Iz, ZENER CURRENT (mA) we =, O1 001 0 5 40 45 50 5 60 65 70 v1) 80 85 Bi 95 100 = 105 Vz, ZENER VOLTAGE (VOLTS) Figure 15. Zener Voltage versus Zener Current Vz = 30 thru 105 Volts VK 2a HETIL 01 12, ZENER CURRENT (mA) 001 110 120130ss40,sd180,ssN60st70'=i 200 210 220 230 280 280260 Vz, ZENER VOLTAGE (VOLTS) Figure 16. Zener Voltage versus Zener Current Vz = 110-220 Volts 4-46