1N5251B

BL FEATURES GALAXY ELECTRICAL ZENER DIODES 1N5221B - - - 1N5279B POWER DISSIPATION: 500 mW DO-35(GLASS) Silicon planar power zener diodes Standard Zener voltage tolerance is ±5%. With a "B" suffix. Other tolerances are available upon request. MECHANICAL DATA Case:DO-35, Glass Case Terminals: Solderable per MIL-STD-202, Method 208 Polarity: Cathode Band Marking: Type Number Approx. Weight: 0.13 grams. MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS Ratings at 25 ambient temperature unless otherwise specified. Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%. SYMBOL Zener current (see Table "Characteristics") VALUE UNIT Pow er dissipation at Tamb=25 Ptot TJ Ts 5001) 175 -55---+175 mW Junction temperature Storage temperature range SYMBOL Thermal resistance junction to ambient MIN TYP MAX 3001) 1.2 UNIT /W RθJA VF Forw ard voltage at IF=200mA V www.galaxycn.com NOTES: (1) Valid provided that leads at a distance of 10 mm from case are kept at ambient temperature. Document Number 0284001 BLGALAXY ELECTRICAL 1. ELECTRICAL CHARACTERISTICS Nominal Zener Voltage1) Type VZ V 1N5221B 1N5222B 1N5223B 1N5224B 1N5225B 1N5226B 1N5227B 1N5228B 1N5229B 1N5230B 1N5231B 1N5232B 1N5233B 1N5234B 1N5235B 1N5236B 1N5237B 1N5238B 1N5239B 1N5240B 1N5241B 1N5242B 1N5243B 1N5244B 1N5245B 1N5246B 1N5247B 1N5248B 1N5249B 1N5250B 1N5251B 1N5252B 1N5253B 1N5254B 1N5255B 1N5256B 1N5257B 1N5258B 1N5259B 1N5260B 1N5261B 1N5262B 1N5263B 1N5264B 1N5265B 1N5266B 1N5267B 1N5268B 1N5269B 1N5270B 1N5271B 1N5272B 1N5273B 1N5274B 1N5275B 1N5276B 1N5277B 1N5278B 1N5279B 1) (TA=25℃) Test Current IZT mA 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 10 9.0 8.5 7.8 7.4 7.0 6.6 6.2 5.6 5.2 5.0 4.6 4.5 4.2 3.8 3.4 3.2 3.0 2.7 2.5 2.2 2.1 2.0 1.8 1.7 1.5 1.4 1.4 1.3 1.1 1.0 0.95 0.90 0.95 0.80 0.74 0.68 Maximum Dynamic Impedance1) ZZT@IZT Ω 30 30 30 30 29 28 24 23 22 19 17 11 7.0 7.0 5.0 6.0 8.0 8.0 10 17 22 30 13 15 16 17 19 21 23 25 29 33 35 41 44 49 58 70 80 93 105 125 150 170 185 230 270 330 370 400 500 750 900 1100 1300 1500 1700 1900 2200 Typical Temperature of Coeffizient αVZ@IZT %/℃ -0.085 -0.085 -0.080 -0.080 -0.075 -0.070 -0.065 -0.060 -0.055 ﹢0.030 ﹢0.030 ﹢0.038 ﹢0.038 ﹢0.045 ﹢0.050 ﹢0.058 ﹢0.062 ﹢0.065 ﹢0.068 ﹢0.075 ﹢0.076 ﹢0.077 ﹢0.079 ﹢0.082 ﹢0.082 ﹢0.083 ﹢0.084 ﹢0.085 ﹢0.086 ﹢0.086 ﹢0.087 ﹢0.087 ﹢0.089 ﹢0.090 ﹢0.091 ﹢0.091 ﹢0.092 ﹢0.093 ﹢0.094 ﹢0.095 ﹢0.095 ﹢0.096 ﹢0.096 ﹢0.097 ﹢0.097 ﹢0.097 ﹢0.098 ﹢0.098 ﹢0.099 ﹢0.099 ﹢0.099 ﹢0.11 ﹢0.11 ﹢0.11 ﹢0.11 ﹢0.11 ﹢0.11 ﹢0.11 ﹢0.11 Maximum Reverse Leakage Current IRM µA 100 100 75 75 50 25 15 10 5.0 5.0 5.0 5.0 5.0 5.0 3.0 3.0 3.0 3.0 3.0 3.0 2.0 1.0 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 ZZK@ IZK=0.25mA Ω 1200 1250 1300 1400 1600 1600 1700 1900 2000 1900 1600 1600 1600 1000 750 500 500 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 700 700 800 900 1000 1100 1300 1400 1400 1600 1700 2000 2200 2300 2600 3000 4000 4500 4500 5000 5500 5500 6000 VR V 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 2.0 2.0 3.0 3.5 4.0 5.0 6.0 6.5 6.5 7.0 8.0 8.4 9.1 9.9 10 11 12 13 14 14 15 17 18 19 21 21 23 25 27 30 33 36 39 43 46 47 52 56 62 68 69 76 84 91 99 106 114 122 129 137 www.galaxycn.com 2.4 2.5 2.7 2.8 3.0 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.0 6.2 6.8 7.5 8.2 8.7 9.1 10 11 12 13 14 15 16 17 18 19 20 22 24 25 27 28 30 33 36 39 43 47 51 56 60 62 68 75 85 87 91 100 110 120 130 140 150 160 170 180 Based on dc-measurement at thermal equilibrium; lead length=9.5(3/8");thermal resistance of heat sink=30K/W Document Number 0284001 BLGALAXY ELECTRICAL 2. RATINGS AND CHARACTERISTIC CURVES FIG.1 -- BREAKDOWN CHARACTERISTICS 1N5221B - - - 1N5279B mA 50 5 10 15 20 25 30 V 40 IZ 30 Test current Iz=20mA 20 10 0 FIG.2 -- ADMISSIBLE POWER DISSIPATION VERSUS AMBIENT TEMPERATURE 1 N5224 1 N5228 1 N5229 1 N5235 1 N5234 1 N5232 1N5231 1N5230 1 N5239 1 N5241 1 N5242 1 N5245 VZ 1 N5250 1 N5252 mW 500 400 Ptot 300 200 100 0 0 100 Tamb 200℃ www.galaxycn.com Document Number 0284001 BLGALAXY ELECTRICAL 3.