pb rohs compliance rohs compliance bzt55b series 0.5 watts hermetically sealed glass zener voltage regulators features ? zener voltage range 2.0 to 75 volts ? mini-melf package ? surface device type mounting ? hermetically sealed glass ? compression bonded construction ? all external surfaces are corrosion resistant and terminals are readily solderable ? rohs compliant ? matte tin(sn) lead finish ? blue color band indicates negative polarity quadro mini melf dimensions in inches and (millimeters) maximum ratings and electrical characteristics rating at 25 o c ambient temperature unle ss otherwise specified. type number symbol value units power dissipation ptot 500 mw operating and storage temperature range t j , t s t g -65 to + 200 o c notes: these ratings are lim iting values above which the serviceability of the diode may be impaired version: b07
figure 1. total power dissipation vs. ambient temperature figure 2. typical change of work ing voltage under operating conditions at t amb =25c figure 3. typical change of working voltage vs. junction temperature 0 120 160 0 100 300 400 500 600 p tot - total power dissipation (mw) t amb - ambient temperature (c) 200 200 80 40 10 15 20 1 10 100 1000 v z - voltage change (mv) v z - z-voltage (v) 25 t j = 25 c i z = 5 ma 0 5 - 60 60 120 1 80 0.8 0.9 1.0 1.1 1.2 1.3 v ztn - relative voltage change t j - junction temperature (c) 240 0 v ztn = v zt /v z (25 c) 0 tk vz = 10 x 10 -4 /k 8 x 10 -4 /k 2 x 10 -4 /k 6 x 10 -4 /k 4 x 10 -4 /k - 4 x 10 -4 /k - 2 x 10 -4 /k figure 4. temperature coefficient of vz vs. z-voltage figure 5. diode capacitance vs. z-voltage figure 6. forward current vs. forward voltage 30 - 5 0 5 10 15 v z - z-voltage (v) 50 40 i z = 5 ma 10 20 0 tk vz - temperat ure coefficient of v z (10 -4 /k) 10 15 0 50 100 150 200 c d - diode capacitance (pf) v z - z-voltage (v) 25 20 t j = 25 c v r = 2 v 0 5 0 0.2 0.4 0.6 0. 8 0.001 0.01 0.1 1 10 100 1.0 i f - forward current (ma) v f - forward voltage (v) t j = 25 c ratings and characteristic curves(bzt55b series)
f igure 7. z-current vs. z-voltage figure 8. z-current vs. z-voltage 8 20 0 20 40 60 80 100 i z - z-current (ma) p tot = 500 mw t amb = 25 c 046 12 v z - z-voltage (v) 15 20 25 30 0 10 20 30 40 50 i z - z-current (ma) v z - z-voltage (v) 35 p tot = 500 mw t amb = 25 c figure 9. differential z-resistance vs. z-voltage 0 5 10 15 20 1 10 100 1000 ( ) 25 tj = 25 c i z = 1 ma 5 ma 10 ma v z - z-voltage (v) r z - differential z-resistance figure 10. thermal response 1 10 100 1000 z thp - thermal resistance for pulse cond. (kw) t p - pulse length (ms) 10 -1 10 0 10 1 10 2 t p /t = 0.5 t p /t = 0.2 t p /t = 0.1 t p /t = 0.05 t p /t = 0.02 t p /t = 0.01 single pulse r thja = 300 k/w t = t jmax - t amb i zm = (- v z + (v z 2 + 4r zj x t/z thp ) 1/2 )/(2r zj ) ratings and characteristic curves(bzt55b series)
electrical characteristics (ta=25 o c unless otherwise noted) type z zt @ i zt ir @ vr number v z v z i zt ohms i zk z zk @ i zk ua vr min (v) max (v) ma max ma ohms max v bzt55b2v0 1.96 2.04 5 100 1.0 600 50 1.0 bzt55b2v2 2.16 2.24 5 100 1.0 600 50 1.0 bzt55b2v4 2.35 2.45 5 85 1.0 600 50 1.0 bzt55b2v7 2.65 2.75 5 85 1.0 600 10 1.0 bzt55b3v0 2.94 3.06 5 85 1.0 600 4 1.0 bzt55b3v3 3.23 3.37 5 85 1.0 600 2 1.0 bzt55b3v6 3.53 3.67 5 85 1.0 600 2 1.0 bzt55b3v9 3.82 3.98 5 85 1.0 600 2 1.0 bzt55b4v3 4.21 4.39 5 75 1.0 600 1 1.0 bzt55b4v7 4.61 4.79 5 60 1.0 600 0.5 1.0 bzt55b5v1 5.00 5.2 5 35 1.0 550 0.1 1.0 bzt55b5v6 5.49 5.71 5 25 1.0 450 0.1 1.0 bzt55b6v2 6.08 6.32 5 10 1.0 200 0.1 2.0 bzt55b6v8 6.66 6.94 5 8 1.0 150 0.1 3.0 bzt55b7v5 7.35 7.65 5 7 1.0 50 0.1 5.0 bzt55b8v2 8.04 8.36 5 7 1.0 50 0.1 6.2 bzt55b9v1 8.92 9.28 5 10 1.0 50 0.1 6.8 bzt55b10 9.80 10.2 5 15 1.0 70 0.1 7.5 bzt55b11 10.40 11.22 5 20 1.0 70 0.1 8.2 bzt55b12 11.40 12.24 5 20 1.0 90 0.1 9.1 bzt55b13 12.74 13.26 5 26 1.0 110 0.1 10 bzt55b15 14.70 15.30 5 30 1.0 110 0.1 11 bzt55b16 15.68 16.32 5 40 1.0 170 0.1 12 bzt55b18 17.64 18.36 5 50 1.0 170 0.1 13 bzt55b20 19.60 20.40 5 55 1.0 220 0.1 15 bzt55b22 21.56 22.44 5 55 1.0 220 0.1 16 bzt55b24 23.52 24.48 5 80 1.0 220 0.1 18 bzt55b27 26.46 27.54 2 80 1.0 220 0.1 20 bzt55b30 29.40 30.60 2 80 1.0 220 0.1 22 bzt55b33 32.34 33.66 2 80 1.0 220 0.1 24 bzt55b36 35.28 36.72 2 80 1.0 220 0.1 27 bzt55b39 38.22 39.78 2 90 0.5 500 0.1 28 bzt55b43 42.14 43.86 2 90 0.5 600 0.1 32 bzt55b47 46.06 47.94 2 110 0.5 700 0.1 35 bzt55b51 49.98 52.02 2 125 0.5 700 0.1 38 bzt55b56 54.88 57.12 2 135 0.5 1000 0.1 42 BZT55B62 60.76 63.24 2.5 150 0.5 1000 0.1 47 bzt55b68 66.64 69.36 2.5 160 0.5 1000 0.1 51 bzt55b75 73.50 76.50 2.5 170 0.5 1000 0.1 56 vf forward voltage = 1.0v maximum @ if=100ma for all types. notes: 1. the type numbers listed have zener voltage min/max limits as shown. 2. the zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (i zt or i zk ) is superimposed to i zt or i zk . version: b07 (volts) v z @ i zt
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