symbol value units zener current see table "characterisitics" power dissipation at t amb=25 o c ptot 500 (1) mw junction t emperature tj 175 o c storage t emperature range t stg -55 to + 175 o c k/mw thermal resistance rtha - typ. junction to ambient air - min. 0.3 (1) max. volts forward voltage v f - typ. at if=100ma - min. 1 max. 1)valid provided that leads are kept at ambient temperature at a distance of 8 mm from case. maximum ratings and electrical characteristics ratings at 25 o c ambient temperature unless otherwise specified. single phase, half wave, 60 hz, resistive or inductive load. for capacitive load, derate current by 20%. bzx55c2v4 thru dimensions in millimeters rectifier specialists r dc components co., l td. 0.52? 2.0max 25.0min 25.0min technical specifica tions of glass silicon zener diodes features * voltage range:2.4v to 39v mechanical data * case: glass sealed case * lead: mil-std-202e, method 208 guaranteed * polarity: color band denotes cathode end * mounting position: any * weight: 0.13 gram * double slug type construction bzx55c 39 note: 1.standard zener voltage tolerance 5% 2.suffix "m" stands for "do-34" package.(e.g.:bzx55c2v4m, bzx55c39m) do-34 / do-35 l do-34 2.9 max do-35 4.2 max l: 158
breakdown characteristic bzx55-series ma 50 40 30 20 10 0 5v 10v 15v 20v 25v 30v iz vz 27 24 22 20 15 12 11 9v1 6v8 6v2 5v6 5v1 4v7 4v3 3v9 3v3 2v4 changes in the power dissipation due to the ambient temperature. 500 400 300 200 100 pd(mw) t a( o c) 50 100 150 200 300 ambient temperature. r dc components co., l td. rating and characteristic curves (bzx55c series) bzx55c2v4 2.28 2.56 5 85 600 1 50 1 -0.085 155 bzx55c2v7 2.5 2.9 5 85 600 1 10 1 -0.080 135 bzx55c 3v0 2.8 3.2 5 85 600 1 4 1 -0.075 125 bzx55c3v3 3.1 3.5 5 85 600 1 2 1 -0.070 115 bzx55c3v6 3.4 3.8 5 85 600 1 2 1 -0.065 105 bzx55c3v9 3.7 4.1 5 85 600 1 2 1 -0.060 95 bzx55c4v3 4.0 4.6 5 75 600 1 1 1 0.055 90 bzx55c4v7 4.4 5.0 5 60 600 1 0.5 1 0.030 85 bzx55c5v1 4.8 5.4 5 35 550 1 0.1 1 0.030 80 bzx55c5v6 5.2 6.0 5 25 450 1 0.1 1 +0.038 70 bzx55c6v2 5.8 6.6 5 10 200 1 0.1 2 +0.045 64 bzx55c6v8 6.4 7.2 5 8 150 1 0.1 3 +0.050 58 bzx55c7v5 7.0 7.9 5 7 50 1 0.1 5 +0.058 53 bzx55c8v2 7.7 8.7 5 7 50 1 0.1 6.2 +0.062 74 bzx55c9v1 8.5 9.6 5 10 50 1 0.1 6.8 +0.068 43 bzx55c10 9.4 10.6 5 15 70 1 0.1 7.5 +0.075 40 bzx55c11 10.4 11.6 5 20 70 1 0.1 8.2 +0.076 36 bzx55c12 11.4 12.7 5 20 90 1 0.1 9.1 +0.077 32 bzx55c13 12.4 14.1 5 26 110 1 0.1 10 +0.079 29 bzx55c15 13.8 15.6 5 30 110 1 0.1 11 +0.082 27 bzx55c16 15.3 17.1 5 40 170 1 0.1 12 +0.083 24 bzx55c18 16.8 19.1 5 50 170 1 0.1 12 +0.085 21 bzx55c20 18.8 21.2 5 55 220 1 0.1 15 +0.086 20 bzx55c22 20.8 23.3 5 55 220 1 0.1 16 +0.087 18 bzx55c24 22.8 25.6 5 80 220 1 0.1 18 +0.088 16 bzx55c27 25.1 28.9 5 80 220 1 0.1 20 +0.090 14 BZX55C30 28 32 5 80 220 1 0.1 22 +0.091 13 bzx55c33 31 35 5 80 220 1 0.1 24 +0.092 12 bzx55c36 34 38 5 80 220 1 0.1 27 +0.093 11 bzx55c39 37 41 2.5 90 500 0.5 0.1 30 +0.094 10 nominal zener voltage v z@ i zt min max zener test current i zt ma maximum zener impedance z zt@ i zt z zt@ i zk ohms ohms i zk ma maximum reverse leakage current i r @ v r ua volts typical temperature coefficient % / o c maximum regulator current i zm ma test current iz 5ma power dissipation 159
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