R 0.5W SILICON PLANAR ZENER DIODES S E M I C O N D U C T O R FEATURES Standards Zener voltage tolerance is Mini-MELF 20%.Add suffix "A" for 10% tolerance and suffix "B" for 5% tolerance Other tolerance, non standards and higher zener voltage upon request 0.063(1.6) 0.055(1.4) These diode are also available in DO-35 case with type designation 1N5225 thru 1N5262 0.019(0.48) 0.011(0.28) 0.142(3.6) 0.134(3.4) MECHANICAL DATA Dimensions in inches and (millimeters) Case: Mini-MELF(SOD-80) glass case Weight: Approx. 0.05 gram ABSOLUTE MAXIMUM RATINGS(LIMITING VALUES) (TA=25 C) Zener current see table "Characteristics" Ptot TJ TSTG Power dissipation at TA=75 C Junction temperature Storage temperature range 5001) mW 175 C -65 to+175 C 1) Valid provided that electrodes are kept at ambient temperature ELECTRICAL CHARACTERISTICS (TA=25 C) Thermal resistance junction to ambient air R Forward voltage at IF=200mA VF JA 1) Valid provided that electrodes are kept at ambient temperature 3001) 1.1 K/W V Nominal Zener Voltage Test Current ZMM5225 3.0 20 29 1600 -0.075 50 0.95 1.0 152 ZMM5226 3.3 20 28 1600 -0.070 25 0.95 1.0 138 ZMM5227 3.6 20 24 1700 -0.065 15 0.95 1.0 126 ZMM5228 3.9 20 23 1900 -0.060 10 0.95 1.0 115 ZMM5229 4.3 20 22 2000 -0.055 5 0.95 1.0 106 ZMM5230 4.7 20 19 1900 0.030 5 1.9 2.0 97 ZMM5231 5.1 20 17 1600 0.030 5 1.9 2.0 89 ZMM5232 5.6 20 11 1600 +0.038 5 2.9 3.0 81 ZMM5233 6.0 20 7 1600 +0.038 5 3.3 3.5 76 ZMM5234 6.2 20 7 1000 +0.045 5 3.8 4.0 73 ZMM5235 6.8 20 5 750 +0.050 3 4.8 5.0 67 ZMM5236 7.5 20 6 500 +0.058 3 5.7 6.0 61 ZMM5237 8.2 20 8 500 +0.062 3 6.2 6.5 55 ZMM5238 8.7 20 8 600 +0.065 3 6.2 6.5 52 ZMM5239 9.1 20 10 600 +0.068 3 6.7 7.0 50 ZMM5240 10 20 17 600 +0.075 3 7.6 8.0 45 ZMM5241 11 20 22 600 +0.076 2 8.0 8.4 41 ZMM5242 12 20 30 600 +0.077 1 8.7 9.1 38 ZMM5243 13 9.5 13 600 +0.079 0.5 9.4 9.9 35 ZMM5244 14 9.0 15 600 +0.082 0.1 9.5 10 32 ZMM5245 15 8.5 16 600 +0.082 0.1 10.5 11 30 ZMM5246 16 7.8 17 600 +0.083 0.1 11.4 12 28 ZMM5247 17 7.4 19 600 +0.084 0.1 12.4 13 27 ZMM5248 18 7.0 21 600 +0.085 0.1 13.3 14 25 ZMM5249 19 6.6 23 600 +0.086 0.1 13.3 14 24 ZMM5250 20 6.2 25 600 +0.086 0.1 14.3 15 23 ZMM5251 22 5.6 29 600 +0.087 0.1 16.2 17 21 ZMM5252 24 5.2 33 600 +0.087 0.1 17.1 18 19.1 ZMM5253 25 5.0 35 600 +0.089 0.1 18.1 19 18.2 ZMM5254 27 4.6 41 600 +0.090 0.1 20 21 16.8 ZMM5255 28 4.5 44 600 +0.091 0.1 20 21 16.2 ZMM5256 30 4.2 49 600 +0.091 0.1 22 23 15.1 ZMM5257 33 3.8 58 700 +0.092 0.1 24 25 13.8 ZMM5258 36 3.4 70 700 +0.093 0.1 26 27 12.6 ZMM5259 39 3.2 80 800 +0.094 0.1 29 30 11.6 ZMM5260 43 3.0 93 900 +0.095 0.1 31 33 10.6 ZMM5261 47 2.7 105 1000 +0.095 0.1 34 36 9.7 ZMM5262 51 2.5 125 1100 +0.096 0.1 37 39 8.9 1) Typical temperature coefficient Maximum regulator Current 2) vz %/K 1) The zener impedance is derived from the 60Hz 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 elimunate unstable units. 2) Valid provided that electrodes are kept at ambient temperature. 3) Measured under thermal equilibrium and DC test conditions. Admissible power dissipation versus ambient temperature (Valid provided that electrodes are kept at ambient temperature) ZMM 5225... mW 500 Ptot 400 300 200 100 0 0 100 200 C Tamb