1N5221B Series Surface Mount Zener Diodes SMALL SIGNAL ZENER DIODES 0.5WATTS P b Lead(Pb)-Free Features: * High Rliability * Very Sharp Reverse Characteristic * Low Reverse Current Level * VZ-Tolerance ± 5% DO-35 Mechanical Data: * Voltage stabilization *Case : DO-35 Glass Case *Weight : Approx 0.13 gram DO-35 Outline Dimensions Unit:mm C D A DIM Min DO-35 26.0 WEITRON http//www.weitron.com.tw A B A B Max - Min - C Max 4.20 1/3 Min - D Max 0.55 Min - Max 2.0 18-Jul-06 1N5221B Series Maximum Ratings and Electrical Characteristics (TA=25°C Unless Otherwise Noted) Parameter T amb ≤ 75°C Power dissipation Z-current Junction ambient I=9.5mm(3/8”)TL=constant Junction temperature Storage temperature range Symbol Value Unit PV 500 mW IZ P V /V Z mA RθJA 300 K/W Tj 200 °C T stg -65~+200 °C Electrical Characteristics Parameter Forward voltage WEITRON http//www.weitron.com.tw I F=200mA Symbol Min Typ Max Unit VF - - 1.1 V 2/3 18-Jul-06 1N5221B Series VZnom1) IZT for rzjT rzjK @ IZK IR @ VR TKVZ V mA Ω Ω mA μA V %/K 1N5221B 2.4 20 <30 <1200 0.25 <100 1.0 <-0.085 1N5222B 2.5 20 <30 <1250 0.25 <100 1.0 <-0.085 1N5223B 2.7 20 <30 <1300 0.25 <75 1.0 <-0.080 1N5224B 2.8 20 <30 <1400 0.25 <75 1.0 <-0.080 1N5225B 3.0 20 <29 <1600 0.25 <50 1.0 <-0.075 1N5226B 3.3 20 <28 <1600 0.25 <25 1.0 <-0.070 1N5227B 3.6 20 <24 <1700 0.25 <15 1.0 <-0.065 1N5228B 3.9 20 <23 <1900 0.25 <10 1.0 <-0.060 1N5229B 4.3 20 <22 <2000 0.25 <5 1.0 <+0.055 1N5230B 4.7 20 <19 <1900 0.25 <5 2.0 <+0.030 1N5231B 5.1 20 <17 <1600 0.25 <5 2.0 <+0.030 1N5232B 5.6 20 <11 <1600 0.25 <5 3.0 <+0.038 1N5233B 6.0 20 <7 <1600 0.25 <5 3.5 <+0.038 1N5234B 6.2 20 <7 <1000 0.25 <5 4.0 <+0.045 1N5235B 6.8 20 <5 <750 0.25 <3 5.0 <+0.050 1N5236B 7.5 20 <6 <500 0.25 <3 6.0 <+0.058 1N5237B 8.2 20 <8 <500 0.25 <3 6.5 <+0.062 1N5238B 8.7 20 <8 <600 0.25 <3 6.5 <+0.065 1N5239B 9.1 20 <10 <600 0.25 <3 7.0 <+0.068 1N5240B 10 20 <17 <600 0.25 <3 8.0 <+0.075 1N5241B 11 20 <22 <600 0.25 <2 8.4 <+0.076 1N5242B 12 20 <30 <600 0.25 <1 9.1 <+0.077 1N5243B 13 9.5 <13 <600 0.25 <0.5 9.9 <+0.079 1N5244B 14 9.0 <15 <600 0.25 <0.1 10 <+0.082 1N5245B 15 8.5 <16 <600 0.25 <0.1 11 <+0.082 1N5246B 16 7.8 <17 <600 0.25 <0.1 12 <+0.083 1N5247B 17 7.4 <19 <600 0.25 <0.1 13 <+0.084 1N5248B 18 7.0 <21 <600 0.25 <0.1 14 <+0.085 1N5249B 19 6.6 <23 <600 0.25 <0.1 15 <+0.086 1N5250B 20 6.2 <25 <600 0.25 <0.1 16 <+0.086 1N5251B 22 5.6 <29 <600 0.25 <0.1 17 <+0.087 1N5252B 24 5.2 <33 <600 0.25 <0.1 18 <+0.088 1N5253B 25 5.0 <35 <600 0.25 <0.1 19 <+0.089 1N5254B 27 4.6 <41 <600 0.25 <0.1 21 <+0.090 1N5255B 28 4.5 <44 <600 0.25 <0.1 21 <+0.091 1N5256B 30 4.2 <49 <600 0.25 <0.1 23 <+0.091 1N5257B 33 3.8 <58 <700 0.25 <0.1 25 <+0.092 1N5258B 36 3.4 <70 <700 0.25 <0.1 27 <+0.093 1N5259B 39 3.2 <80 <800 0.25 <0.1 30 <+0.094 1N5260B 43 3.0 <93 <900 0.25 <0.1 33 <+0.095 1N5261B 47 2.7 <105 <1000 0.25 <0.1 36 <+0.095 1N5262B 51 2.5 <125 <1100 0.25 <0.1 39 <+0.096 1N5263B 56 2.2 <150 <1300 0.25 <0.1 43 <+0.096 1N5264B 60 2.1 <170 <1400 0.25 <0.1 46 <+0.097 1N5265B 62 2.0 <185 <1400 0.25 <0.1 47 <+0.097 1N5266B 68 1.8 <230 <1600 0.25 <0.1 52 <+0.097 1N5267B 75 1.7 <270 <1700 0.25 <0.1 58 <+0.098 1) Based on DC-measurement at thermal equilibrium while maintaining the lead temperature(TL)at 30℃, Type 9.5mm(3/8”) from the diode body. WEITRON http//www.weitron.com.tw 3/3 18-Jul-06