LL5221B~LL5271B 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 ℃ Symbol Value Unit RthJA 300 K/W Tamb≤75℃ Power dissipation Storage temperature range Maximum Thermal Resistance Tj=25℃ Parameter Junction ambient Test Conditions I=9.5mm(3/8”) TL=constant Electrical Characteristics Tj=25℃ Parameter Forward voltage Test Conditions Type IF=200mA Symbol VF Min Typ Max Unit 1.1 V Excel Semiconductor www.excel-semi.com FaxBack +86-512-67606917 Rev. 3b, 1-Jul-2004 1/5 LL5221B~LL5271B VZnom1) IZT for rzjT rzjK at IZK IR at VR V mA Ω Ω mA μA V LL5221B 2.4 20 <30 <1200 0.25 <100 1.0 LL5222B 2.5 20 <30 <1250 0.25 <100 1.0 LL5223B 2.7 20 <30 <1300 0.25 <75 1.0 LL5224B 2.8 20 <30 <1400 0.25 <75 1.0 LL5225B 3.0 20 <29 <1600 0.25 <50 1.0 LL5226B 3.3 20 <28 <1600 0.25 <25 1.0 LL5227B 3.6 20 <24 <1700 0.25 <15 1.0 LL5228B 3.9 20 <23 <1900 0.25 <10 1.0 LL5229B 4.3 20 <22 <2000 0.25 <5 1.0 LL5230B 4.7 20 <19 <1900 0.25 <5 2.0 LL5231B 5.1 20 <17 <1600 0.25 <5 2.0 LL5232B 5.6 20 <11 <1600 0.25 <5 3.0 LL5233B 6.0 20 <7 <1600 0.25 <5 3.5 LL5234B 6.2 20 <7 <1000 0.25 <5 4.0 LL5235B 6.8 20 <5 <750 0.25 <3 5.0 LL5236B 7.5 20 <6 <500 0.25 <3 6.0 LL5237B 8.2 20 <8 <500 0.25 <3 6.5 LL5238B 8.7 20 <8 <600 0.25 <3 6.5 LL5239B 9.1 20 <10 <600 0.25 <3 7.0 LL5240B 10 20 <17 <600 0.25 <3 8.0 LL5241B 11 20 <22 <600 0.25 <2 8.4 LL5242B 12 20 <30 <600 0.25 <1 9.1 LL5243B 13 9.5 <13 <600 0.25 <0.5 9.9 LL5244B 14 9.0 <15 <600 0.25 <0.1 10 LL5245B 15 8.5 <16 <600 0.25 <0.1 11 LL5246B 16 7.8 <17 <600 0.25 <0.1 12 LL5247B 17 7.4 <19 <600 0.25 <0.1 13 LL5248B 18 7.0 <21 <600 0.25 <0.1 14 LL5249B 19 6.6 <23 <600 0.25 <0.1 15 LL5250B 20 6.2 <25 <600 0.25 <0.1 16 LL5251B 22 5.6 <29 <600 0.25 <0.1 17 LL5252B 24 5.2 <33 <600 0.25 <0.1 18 LL5253B 25 5.0 <35 <600 0.25 <0.1 19 LL5254B 27 4.6 <41 <600 0.25 <0.1 21 LL5255B 28 4.5 <44 <600 0.25 <0.1 21 LL5256B 30 4.2 <49 <600 0.25 <0.1 23 LL5257B 33 3.8 <58 <700 0.25 <0.1 25 LL5258B 36 3.4 <70 <700 0.25 <0.1 27 LL5259B 39 3.2 <80 <800 0.25 <0.1 30 LL5260B 43 3.0 <93 <900 0.25 <0.1 33 LL5261B 47 2.7 <105 <1000 0.25 <0.1 36 LL5262B 51 2.5 <125 <1100 0.25 <0.1 39 LL5263B 56 2.2 <150 <1300 0.25 <0.1 43 LL5264B 60 2.1 <170 <1400 0.25 <0.1 46 LL5265B 62 2.0 <185 <1400 0.25 <0.1 47 LL5266B 68 1.8 <230 <1600 0.25 <0.1 52 LL5267B 75 1.7 <270 <1700 0.25 <0.1 58 LL5268B 82 1.5 <330 <2000 0.25 <0.1 62 LL5269B 87 1.4 <370 <2200 0.25 <0.1 68 LL5270B 91 1.4 <400 <2300 0.25 <0.1 69 LL5271B 100 1.3 <500 <2600 0.25 <0.1 76 1) Based on DC-measurement at thermal equilibrium while maintaining the lead temperature(TL) at 30℃, 9.5mm (3/8”) from the diode body. Type 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 <+0.099 <+0.099 <+0.11 Excel Semiconductor www.excel-semi.com FaxBack +86-512-67606917 Rev. 3b, 1-Jul-2004 2/5 LL5221B~LL5271B Characteristics (Tj=25℃ unless otherwise specified) Figure 1. Zener Voltage versus Zener Current – Vz=1 thru 16 Volts Figure 2. Zener Voltage versus Zener Current – Vz=15 thru 30 Volts Excel Semiconductor www.excel-semi.com FaxBack +86-512-67606917 Rev. 3b, 1-Jul-2004 3/5 LL5221B~LL5271B Figure 3. Zener Voltage versus Zener Current – Vz=30 thru 75 Volts Figure 4. Thermal resistance from junction to ambient as a function of pulse duration Excel Semiconductor www.excel-semi.com FaxBack +86-512-67606917 Rev. 3b, 1-Jul-2004 4/5 LL5221B~LL5271B Dimensions in mm Φ1.5±0.1 Cathode identification 0.3 3.5±0.2 Glass Case Mini Melf / SOD 80 JEDEC DO 213 AA Excel Semiconductor www.excel-semi.com FaxBack +86-512-67606917 Rev. 3b, 1-Jul-2004 5/5