1N5257B

1N5221B - 1N5267B VZ : 2.4 - 75V PD : 500mW FEATURES : • Silicon planar power zener diodes. • Standard zener voltage tolerance is ± 5%. • Other tolerances are available upon request. • These diodes are also available in MiniMELF case with the type designation ZMM5221B ... ZMM5267B • Pb / RoHS Free ZENER DIODES DO - 35 Glass (DO-204AH) 0.079(2.0 )max. 1.00 (25.4) min. Cathode Mark 0.150 (3.8) max. 0.020 (0.52)max. 1.00 (25.4) min. MECHANICAL DATA : Case: DO-35 Glass Case Weight: approx. 0.13g Dimensions in inches and ( millimeters ) Rating at 25 °C ambient temperature unless otherwise specified. Maximum Ratings and Thermal Characteristics Parameter Zener Current see Table "Characteristics" Maximum Forward Voltage at IF = 200 mA. Power Dissipation at Ta = 75 °C Thermal Resistance Junction to Ambient Air Junction temperature Storage temperature range VF PD RθJA TJ TS 1.1 500 300 (1) (1) Symbol Value Unit V mW °C/W °C °C 175 -65 to + 175 Note: (1) Valid provided that leads at a distance of 3/8” from case are kept at ambient temperature. Page 1 of 2 Rev. 04 : September 2, 2005 Electrical Characteristics (Ta = 25°C) Nominal Zener Test Voltage Current Type VZ @ IZT (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 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 Maximum Zener Impedance (1) ZZK ZZT @ IZT at IZK = 0.25mA (Ω ) (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 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 IZT (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 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 Maximum Reverse Typical Leakage Current Temperature Coefficient IR @ VR αVZ(%/ °C) (V) (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 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 10.0 11 12 13 14 14 15 17 18 19 21 21 23 25 27 30 33 36 39 43 46 47 52 56 -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 Maximum Regulator Current(2) IZM (mA) 190 182 168 162 152 138 126 115 106 97 89 81 76 73 67 61 55 52 50 45 41 38 35 32 30 28 27 25 24 23 21 19.1 18.2 16.8 16.2 15.1 13.8 12.6 11.6 10.6 9.7 8.9 - Notes : (1) The Zener impedance is derived from the 1 kHz 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) Valid provided that leads at a distance of 10 mm from case are kept at ambient temperature (3) Standard Zener voltage tolerance is ± 5% tolerance. Page 2 of 2 Rev. 04 : September 2, 2005