LL5221B~LL5271B Zener diode Features 1. High reliability 2. Very sharp reverse characteristic 3. Low reverse current level 4. VZ-tolerance5% 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 Tamb75 Power dissipation Storage temperature range Maximum Thermal Resistance Tj=25 Parameter Junction ambient Test Conditions I=9.5mm(3/8") TL=constant Stresses exceeding maximum ratings may damage the device. Maximum ratings are stress ratings only. Functional operation above the recommended operating conditions is not implied. Extended exposure to stresses above the recommended operating conditions may affect device reliability. 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 +86-512-66607370 Rev. 3e, 1-Nov-2006 1/5 LL5221B~LL5271B VZnom1) IZT for rzjT rzjK at IZK IR at VR V mA mA A 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 +86-512-66607370 Rev. 3e, 1-Nov-2006 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 +86-512-66607370 Rev. 3e, 1-Nov-2006 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 +86-512-66607370 Rev. 3e, 1-Nov-2006 4/5 LL5221B~LL5271B Dimensions in mm 1.50.1 Cathode identification 0.3 3.50.2 Glass Case Mini Melf / SOD-80 JEDEC DO-213 AA Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3e, 1-Nov-2006 5/5