ds30015 rev. d-3 1 of 3 bzm5221b-bzm5267b bzm5221b - bzm5267b 500mw surface mount zener diode features maximum ratings and electrical characteristics @ t a = 25 c unless otherwise specified characteristic symbol value unit power dissipation (note 1) p d 500 mw zener current (note 1) i z p d /v z ma thermal resistance, junction to ambient air (note 1) r ja 300 k/w forward voltage @ i f = 200ma v f 1.5 v operating and storage temperature range t j, t stg -65 to +175 c case: micromelf, glass terminals: solderable per mil-std-202, method 208 polarity: cathode band marking: cathode band only weight: 0.012 grams (approx.) 500mw power dissipation high stability low noise hemetic package mechanical data a d c b micromelf dim min max a 1.8 2.0 b 1.20 1.25 c 1.35 typical all dimensions in mm notes: 1. valid provided that electrodes are kept at ambient temperature. 2. tested with pulses, t p 100ms.
ds30015 rev. d-3 2 of 3 bzm5221b-bzm5267b electrical characteristics @ t a = 25 c unless otherwise specified type number zener voltage range (note 2) test current maximum zener impedance maximum reverse current typical temperature coefficient @i zt v z @i zt i zt z zt @i zt z zk @i zk = 0.25ma i r @v r nom (v) min (v) max (v) ma a v %/k bzm5221b 2.4 2.28 2.52 20 30 1200 100 1.0 -0.085 bzm5222b 2.5 2.38 2.63 20 30 1250 100 1.0 -0.085 bzm5223b 2.7 2.57 2.84 20 30 1300 75 1.0 -0.080 bzm5224b 2.8 2.66 294 20 30 1400 75 1.0 -0.080 bzm5225b 3.0 2.85 3.15 20 30 1600 50 1.0 -0.075 bzm5226b 3.3 3.14 3.47 20 28 1600 25 1.0 -0.070 bzm5227b 3.6 3.42 3.78 20 24 1700 15 1.0 -0.065 bzm5228b 3.9 3.71 4.10 20 23 1900 10 1.0 -0.060 bzm5229b 4.3 4.09 4.52 20 22 2000 5.0 1.0 0.055 bzm5230b 4.7 4.47 4.94 20 19 1900 5.0 2.0 0.030 bzm5231b 5.1 4.85 5.36 20 17 1600 5.0 2.0 0.030 bzm5232b 5.6 5.32 5.88 20 11 1600 5.0 3.0 +0.038 bzm5233b 6.0 5.70 6.30 20 7.0 1600 5.0 3.5 +0.038 bzm5234b 6.2 5.89 6.51 20 7.0 1000 5.0 4.0 +0.045 bzm5235b 6.8 6.46 7.14 20 5.0 750 3.0 5.0 +0.050 bzm5236b 7.5 7.13 7.88 20 6.0 500 3.0 6.0 +0.058 bzm5237b 8.2 7.79 8.61 20 8.0 500 3.0 6.5 +0.062 bzm5238b 8.7 8.27 9.14 20 8.0 600 3.0 6.5 +0.065 bzm5239b 9.1 8.65 9.56 20 10 600 3.0 7.0 +0.068 bzm5240b 10 9.50 10.50 20 17 600 3.0 8.0 +0.075 bzm5241b 11 10.45 11.55 20 22 600 2.0 8.4 +0.076 bzm5242b 12 11.40 12.60 20 30 600 1.0 9.1 +0.077 bzm5243b 13 12.35 13.65 9.5 13 600 0.5 9.9 +0.079 bzm5244b 14 13.30 14.70 9.0 15 600 0.1 10 +0.082 bzm5245b 15 14.25 15.75 8.5 16 600 0.1 11 +0.082 bzm5246b 16 15.20 16.80 7.8 17 600 0.1 12 +0.083 bzm5247b 17 16.15 17.85 7.4 19 600 0.1 13 +0.084 bzm5248b 18 17.10 18.90 7.0 21 600 0.1 14 +0.085 bzm5249b 19 18.05 19.95 6.6 23 600 0.1 14 +0.086 bzm5250b 20 19.00 21.00 6.2 25 600 0.1 15 +0.086 bzm5251b 22 20.90 23.10 5.6 29 600 0.1 17 +0.087 bzm5252b 24 22.80 25.20 5.2 33 600 0.1 18 +0.087 bzm5253b 25 23.75 26.25 5.0 35 600 0.1 19 +0.089 bzm5254b 27 25.65 28.35 4.6 41 600 0.1 21 +0.090 bzm5255b 28 26.60 29.40 4.5 44 600 0.1 21 +0.091 bzm5256b 30 28.50 31.50 4.2 49 600 0.1 23 +0.091 bzm5257b 33 31.35 34.65 3.8 58 700 0.1 25 +0.092 bzm5258b 36 34.20 37.80 3.4 70 700 0.1 27 +0.093 bzm5259b 39 37.05 40.95 3.2 80 800 0.1 30 +0.094 bzm5260b 43 40.85 45.15 3.0 93 900 0.1 33 +0.095 bzm5261b 47 44.65 49.35 2.7 105 1000 0.1 36 +0.095 bzm5262b 51 48.45 53.55 2.5 125 1100 0.1 39 +0.096 bzm5263b 56 53.20 58.80 2.2 150 1300 0.1 43 +0.096 bzm5264b 60 57.00 63.00 2.1 170 1400 0.1 46 +0.097 bzm5265b 62 58.90 65.10 2.0 185 1400 0.1 47 +0.097 bzm5266b 68 64.60 71.40 1.8 230 1600 0.1 52 +0.097 bzm5267b 75 71.25 78.75 1.7 270 1700 0.1 56 +0.098 notes: 2. tested with pulses, t p 100ms.
ds30015 rev. d-3 3 of 3 bzm5221b-bzm5267b 0 50 100 150 200 0 510152025 c , diode cap acitance (pf) j v , zener voltage (v) fi g . 2 diode capacitance vs zener volta g e z v = 2.0v r t = 25 c j 1 10 100 1000 0 5 10 15 20 25 differential zener resist ance ( ) v , zener voltage (v) fi g . 3 differential zener impedance z i = 1.0ma z 5.0ma 10ma t = 25 c j 1.0 10 100 1000 0.1 1.0 10 100 r(t), normalized effective transient thermal resist ance (k/w) t , square wave pulse duration (seconds) fi g .4 t y pical normalized transient thermal impedance curves 1 1000 d = 0.5 0.2 0.1 0.05 0.02 0.01 t 1 t 2 p (pk) t - t = p r (t) duty cycle, d = t /t j a pk ja 12 * r (t) = r(t) r r = 300 k/w ja ja * ja 0 100 200 300 400 5 00 0 40 80 120 160 200 p , total power dissip ation (mw) d t , ambient temperature fi g .1 power dissipation vs ambient temperature a
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