, iJnc. 20 STERN AVE. SPRINGFIELD, NEW JERSEY 07081 U.S.A. TELEPHONE: (973) 376-2922 (212) 227-6005 FAX: (973) 376-8960 0.5W SILICON ZENER DIODES 1N5221A/BTHRU 1N5281A/B • Standards zener voltage tolerance is ± 20%.Add suffix "A" for ± 10% tolerance and suffix "B" for ± 5% tolerance DO-35(GLASS) other tolerance, non standards and higher zener voltage upon request 0.075(1.9) MAX! "' 1.083(27.5) DIA. MIN. ...*. 0,154(3.9) MAX/" Mechanical Data • Case : DO-35 glass case 1.083(27.5) MIN. 0.020(0.52) MAX.' • Polarity: Color band denotes cathode end Weight: Approx. 0.13 gram DIA. .*.. Dimensions in inches and (millimeters) Absolute Maximum Ratings (Limiting Values) (TA=25°c) Symbols Value Units Ptot 500') mW TJ 175 °C Zener current see table "Characteristics" Power dissipation atT«=75°C Junction Temperature Storage Temperature range TSTG -65 to+200 •c 1 ) Valid provided that a distance of 8mm from case are kept at ambient temperature Electrical Characteristics (TA=25°c) Symbols Thermal resistance junction to ambient Forward voltage at lF=200mA Min. Typ. Max. Units Re JA 300" °c/w VF 1.1 V 1) Valid provided that a distance of 8mm from case are kept at ambient temperature NI .Semi-C unduUors reserves ihe right to change les» conditions, parameter limitt .md package dimensions without notice In/brmiilion liimished by N) Semi-Curl Jucton it believed to he rwiih uccuraK ,ind reliable .11 Ihe time of going to press. However \ Scini (. DiiJuilurt .ii.Miines n.i respt>n]ibilily fiit ;in> ermr? or omissions Jistuvcred in its »^e ,\.l Seini-<..oiitlui.li,rs cntn Type VZNOM3) 1NS250A/B Maximum Reverse Leakage Current Maximum zener impedance'1 Zener Voltage range" rzjt and rzjk at IZK IZT V mA Q 20 6.2 <25 Q TKvz |R21 at VR mA H A Temp Coefficient of zener voltage V %/K 15 <-0.086 1N5251A/B 22 5.6 <29 17 <-0.087 1N5252A/B 24 5.2 <33 18 •c-0.088 1NS253A/B 25 5.0 <35 19 <-0.089 1N5254A/B 27 4.6 <41 21 <-0.090 1N5255A/B 28 4.5 <44 21 <-0.091 1NS256A/B 30 4.2 <49 23 <-0.091 1NS2S7A/B 33 3.8 <58 <700 25 <-0.092 1N52S8A/B 36 3.4 <70 <700 27 <+0.093 1 N5259A/B 39 3.2 <80 <800 30 <+0.094 1 N5260A/B 43 3.0 <93 <900 33 <+0.095 <600 1NS261A/B 47 2.7 <105 <1000 36 <+0.095 1 N5262A/B 51 2.5 <125 <1100 39 <+0,096 1 N5263A/B 56 2.2 <150 <1300 1 NS264A/B 60 2.1 <170 1 NS265A/B 62 2.0 1 N5266A/B 68 1.8 1 N5267A/B 75 1 N5268A/B 0.25 43 <+0.096 <1400 46 < +0.097 <185 <1400 47 <+0.097 <230 <1600 52 <+0.097 1.7 <270 <1700 56 <+0.098 82 1.5 <330 <2000 62 <+0.098 1 NS269A/B 87 1.4 <370 <2200 68 < +0.099 1N5270A/B 91 1.4 <400 <2300 69 <+0.099 1N5271A/B 100 1.3 <500 - - 75 <+0.100 1N5272A/B 110 1.2 <700 - -- 83 <+0.100 1N5273A/B 120 1.0 <950 - -- 90 <+0.100 1N5274A/B 130 0.95 <1100 - 98 <+0.1lO 1N527SA/B 140 0.90 <1300 1N5276A/B 150 0.85 <1500 - <0.1 -- 105 <+o.no -- 113 <+0.110 1N5277A/B 160 0.80 <1700 1 N5278A/B 170 0.74 <1900 1N5279A/B 180 0.68 <2200 - - 135 <+0.120 1 N5280A/8 190 0.66 <2400 - - 142 <+0.120 1N5281A/B 200 0.65 <2500 - 150 <+0.120 - -- 120 <+0.115 -- 127 <+0.115 1) The zener impedance is derived from the 60Hz AC voltage which results when on 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 eliminate unstable units. 2) Vaild provided that leads at a distance of 8mm from case are kept at ambient temperature. 3) Measured under thermal equilibrium and DC test conditions. Zener Voltage range1' Type VZNOM3' V 1N5221A/B 2.4 Maximum zener impedance" Temp Coefficient of zener voltage lR 2 ) atVR TKVZ rzjt and rzjk at IZK IZT mA Maximum Reverse Leakage Current a Q mA /' A V %/K <1200 <100 <-0.085 1N5222A/B 2.5 <1250 <100 <-0.085 1N5223A/B 2.7 <1300 <75 <-0.080 1N5224A/B 2.8 <1400 <75 1N522SA/B 3.0 <1600 <SO 1N5226A/B 3.3 <28 <1600 <25 <:-0.070 1N5227A/B 3.6 <24 <1700 <15 <-0.06S 1N5228A/B 3.9 <23 <1900 <10 <-0.060 1N5229A/B 4.3 <22 <2000 1N5230A/B 4.7 <19 <1900 1N5231A/B 5.1 <17 <1600 1N5232A/B 5.6 <11 <1600 3.0 <+0.038 1N5233A/B 6.0 <7 <1600 3.5 <+0.038 1N5234A/B 6.2 <7 <1000 4.0 <+0.045 1N5235A/B 6,8 <5 <7SO 5.0 <+0.050 1N5236A/B 7.5 <6 <500 6.0 <+0.058 1N5237A/B 8.2 <8 <500 6.5 <+0.062 1NS238A/B 8.7 <8 1NS239A/B 9.1 <10 <30 <29 20 •c-0.080 1.0 <-0.075 <+0.055 5 0.25 3 2.0 <+0.030 2.0 <+0.030 6.5 <+0.065 7.0 <+0.068 1 N5240A/B 10 <17 1N5241A/B 11 <22 1N5242A/B 12 <30 1N5243A/B 13 9.5 <13 1N5244A/6 14 9.0 <15 1NS245A/B 15 8.5 <16 11 <+0.082 1 N5246A/B 16 7.8 <17 12 < +0.083 1N5247A/B 17 7.4 <19 13 <+0.084 1 N5248A/B 18 7.0 <21 14 <+0.085 1N5249A/B 19 6.6 <23 14 <+0.086 8.0 <+0.075 8.4 <+0.076 <1 9.1 <+0.077 <0.5 9.9 <+0.079 10 <+0.082 <2 <600