1N5221B~1N5267B Formosa MS Zener diode Features 1. High reliability 2. Very sharp reverse characteristic 3. Low reverse current level 4. VZ -tolerance± 5% Applications Voltage stabilization Absolute Maximum Ratings Tj=25? Parameter Test Conditions Type Symbol Value Unit PV 500 mW Z-current IZ PV/VZ mA Junction temperature Tj 200 ? Tstg -65~+200 ? Tamb= 75? Power dissipation Storage temperature range Maximum Thermal Resistance Tj=25? Parameter Junction ambient Test Conditions I=9.5mm(3/8”) TL=constant Symbol Value Unit RthJA 300 K/W Electrical Characteristics Tj=25? Parameter Forward voltage Test Conditions IF =200mA Formosa MS Type Symbol VF Min Typ Max Unit 1.1 V 1 1N5221B~1N5267B Formosa MS Type 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 1) Based 1) VZnom IZT for rzjT rzjK at IZ K IR at VR TKVZ V mA O O mA µ A V %/K 2.4 20 <30 <1200 0.25 <100 1.0 <-0.085 2.5 20 <30 <1250 0.25 <100 1.0 <-0.085 2.7 20 <30 <1300 0.25 <75 1.0 <-0.080 2.8 20 <30 <1400 0.25 <75 1.0 <-0.080 3.0 20 <29 <1600 0.25 <50 1.0 <-0.075 3.3 20 <28 <1600 0.25 <25 1.0 <-0.070 3.6 20 <24 <1700 0.25 <15 1.0 <-0.065 3.9 20 <23 <1900 0.25 <10 1.0 <-0.060 4.3 20 <22 <2000 0.25 <5 1.0 <+0.055 4.7 20 <19 <1900 0.25 <5 2.0 <+0.030 5.1 20 <17 <1600 0.25 <5 2.0 <+0.030 5.6 20 <11 <1600 0.25 <5 3.0 <+0.038 6.0 20 <7 <1600 0.25 <5 3.5 <+0.038 6.2 20 <7 <1000 0.25 <5 4.0 <+0.045 6.8 20 <5 <750 0.25 <3 5.0 <+0.050 7.5 20 <6 <500 0.25 <3 6.0 <+0.058 8.2 20 <8 <500 0.25 <3 6.5 <+0.062 8.7 20 <8 <600 0.25 <3 6.5 <+0.065 9.1 20 <10 <600 0.25 <3 7.0 <+0.068 10 20 <17 <600 0.25 <3 8.0 <+0.075 11 20 <22 <600 0.25 <2 8.4 <+0.076 12 20 <30 <600 0.25 <1 9.1 <+0.077 13 9.5 <13 <600 0.25 <0.5 9.9 <+0.079 14 9.0 <15 <600 0.25 <0.1 10 <+0.082 15 8.5 <16 <600 0.25 <0.1 11 <+0.082 16 7.8 <17 <600 0.25 <0.1 12 <+0.083 17 7.4 <19 <600 0.25 <0.1 13 <+0.084 18 7.0 <21 <600 0.25 <0.1 14 <+0.085 19 6.6 <23 <600 0.25 <0.1 15 <+0.086 20 6.2 <25 <600 0.25 <0.1 16 <+0.086 22 5.6 <29 <600 0.25 <0.1 17 <+0.087 24 5.2 <33 <600 0.25 <0.1 18 <+0.088 25 5.0 <35 <600 0.25 <0.1 19 <+0.089 27 4.6 <41 <600 0.25 <0.1 21 <+0.090 28 4.5 <44 <600 0.25 <0.1 21 <+0.091 30 4.2 <49 <600 0.25 <0.1 23 <+0.091 33 3.8 <58 <700 0.25 <0.1 25 <+0.092 36 3.4 <70 <700 0.25 <0.1 27 <+0.093 39 3.2 <80 <800 0.25 <0.1 30 <+0.094 43 3.0 <93 <900 0.25 <0.1 33 <+0.095 47 2.7 <105 <1000 0.25 <0.1 36 <+0.095 51 2.5 <125 <1100 0.25 <0.1 39 <+0.096 56 2.2 <150 <1300 0.25 <0.1 43 <+0.096 60 2.1 <170 <1400 0.25 <0.1 46 <+0.097 62 2.0 <185 <1400 0.25 <0.1 47 <+0.097 68 1.8 <230 <1600 0.25 <0.1 52 <+0.097 75 1.7 <270 <1700 0.25 <0.1 58 <+0.098 on DC-measurement at thermal equilibrium while maintaining the lead temperature(TL)at 30? , 9.5mm(3/8”) from the diode body. Formosa MS 2 1N5221B~1N5267B Formosa MS Dimensions in mm Standard Glass Case JEDEC DO 35 Formosa MS 3