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BZT5257 Dataheets PDF



Part Number BZT5257
Manufacturers SEMTECH ELECTRONICS
Logo SEMTECH ELECTRONICS
Description (BZT52 Series) SILICON PLANAR ZENER DIODES
Datasheet BZT5257 DatasheetBZT5257 Datasheet (PDF)

BZT52 Series SILICON PLANAR ZENER DIODES Standard Zener voltage tolerance is ±20%. Add suffix “A” for ±10% tolerance and suffix “B” for ±5% tolerance, Other tolerance, non standard and higher Zener voltages are upon request. LS-34 QuadroMELF Dimensions in mm Absolute Maximum Ratings (Ta = 25 OC) Parameter Power Dissipation at Tamb = 75 OC Junction Temperature Storage Temperature Range Symbol Ptot Tj TS Value 500 200 - 65 to +200 Unit mW O C C O Characteristics at Ta = 25 OC Parameter Th.

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BZT52 Series SILICON PLANAR ZENER DIODES Standard Zener voltage tolerance is ±20%. Add suffix “A” for ±10% tolerance and suffix “B” for ±5% tolerance, Other tolerance, non standard and higher Zener voltages are upon request. LS-34 QuadroMELF Dimensions in mm Absolute Maximum Ratings (Ta = 25 OC) Parameter Power Dissipation at Tamb = 75 OC Junction Temperature Storage Temperature Range Symbol Ptot Tj TS Value 500 200 - 65 to +200 Unit mW O C C O Characteristics at Ta = 25 OC Parameter Thermal Resistance Junction to Ambient Air Forward Voltage at IF = 200 mA Symbol RthA VF Max. 0.3 1.1 Unit K/W V SEMTECH ELECTRONICS LTD. ® (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 12/01/2007 Free Datasheet http://www.datasheet4u.com/ BZT52 Series 1) Zener Voltage Range Type Vznom V BZT5221 BZT5222 BZT5223 BZT5224 BZT5225 BZT5226 BZT5227 BZT5228 BZT5229 BZT5230 BZT5231 BZT5232 BZT5233 BZT5234 BZT5235 BZT5236 BZT5237 BZT5238 BZT5239 BZT5240 BZT5241 BZT5242 BZT5243 BZT5244 BZT5245 BZT5246 BZT5247 BZT5248 BZT5249 BZT5250 BZT5251 BZT5252 BZT5253 BZT5254 BZT5255 BZT5256 BZT5257 BZT5258 BZT5259 BZT5260 BZT5261 BZT5262 BZT5263 BZT5264 BZT5265 BZT5266 BZT5267 BZT5268 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 82 3) Maximum Zener Impedance rZJT Ω < 30 < 30 < 30 < 30 < 29 < 28 < 24 < 23 < 22 < 19 < 17 < 11 <7 <7 <5 <6 <8 <8 < 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 rZJK 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 at IZK Reverse Leakage Current IR µA < 100 < 100 < 75 < 75 < 50 < 25 < 15 < 10 <5 <5 <5 <5 <5 <5 <3 <3 <3 <3 <3 <3 <2 <1 < 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 2) Temp. Coefficient of Zener Voltage TKVZ %/K <-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 <+0.088 <+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 lZT mA 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 9.5 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 at VR V 1 1 1 1 1 1 1 1 1 2 2 3 3.5 4 5 6 6.5 6.5 7 8 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 mA 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 SEMTECH ELECTRONICS LTD. ® (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 12/01/2007 Free Datasheet http://www.datasheet4u.com/ BZT52 Series Zener Voltage Range Type Vznom V BZT5269 BZT5270 BZT5271 BZT5272 BZT5273 BZT5274 BZT5275 BZT5276 BZT5277 BZT5278 BZT5279 BZT5280 BZT5281 1) 3) Maximum Zener Impedance rZJT Ω < 370 < 400 < 500 < 700 < 950 < 1100 < 1300 < 1500 < 1700 < 1900 < 2200 < 2400 < 2500 rZJK Ω < 2200 < 2300 at IZK 1) Reverse Leakage Current IR 2) Temp. Coefficient of Zener Voltage TKVZ %/K <+0.099 <+0.099 <+0.100 <+0.100 <+0.100 <+0.110 <+0.110 <+0.110 <+0.115 <+0.115 <+0.120 <+0.120 <+0.120 lZT mA 1.4 1.4 1.3 1.2 1.0 0.95 0.90 0.85 0.80 0.74 0.68 0.66 0.65 at VR V 68 69 75 83 90 98 105 113 120 127 135 142 150 mA 0.25 0.25 - µA < 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 87 91 100 110 120 130 140 150 160 170 180 190 200 The Zener Impedance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener Current (IZT or IZK) is superimposed on IZT or IZK .Zener Impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units. 2) 3) Measured under thermal equilibrium and DC test conditions. Tested with pulses tp = 20 ms. SEMTECH ELECTRONICS LTD. ® (Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724) Dated : 12/01/2007 Free Datasheet http://www.datasheet4u.com/ .


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