glass passivated low leakage current excellent stability supplied in 12 mm embossed tape. symbol parameter conditions value unit p rsm non-repetitive peak reverse power dissipation 10/1000 m s exponential pulse; t j =25 c prior to surge; see figs.3 and 5 400 w case: sma/do-214ac, molded plastic ! ! terminals: solder plated, solderable per mil-std-750, method 2026 ! polarity: cathode band or cathode notch ! marking: type number ! weight: 0.064 grams (approx.) mechanical data a b c d g h e j dim minmax a 2.29 2.92 b 4.00 4.60 c 1.27 1.63 d 0.15 0.31 e 4.80 5.59 g 0.10 0.20 h 0.76 1.52 j 2.01 2.62 all dimensions in mm sma(do-214ac) features psma8.5a - psma78a electrical characteristics total series t j =25 c unless otherwise specified. symbol parameter conditions min. max. unit v f forward voltage i f = 0.5 a - 1.2 v t stg storage temperature - 65 +175 c t j junction temperature - 65 +175 c maximum ratings t a = 25 c unless otherwise specified surface mount transient voltage suppressor diodes high maximum operating temperature ul 94v-o classified plastic package transient suppressor stand-off voltage range: 8.5 to 78 v for 26 types ! ! ! ! ! ! power: 400wa t t s voltage range: 8 .5 - 7 8 v 1 of 3 www.sunmate.tw
device reverse stand-off voltage breakdown voltage reverse voltage (max) @i rsm (clamping voltage) reverse surge current (max) reverse leakage current (max) @v rwm v rwm (v) v br min. (v) i t (ma) v rsm (v) i rsm (a) i r ( m a) psma8.5a 8.5 9.44 1 14.4 27.8 5.0 psma9.0a 9.0 10.0 1 15.4 26.0 2.5 psma10a 10 11.1 1 17.0 23.5 2.5 psma11a 11 12.2 1 18.2 22.0 2.5 psma12a 12 13.3 1 19.9 20.1 2.5 psma13a 13 14.4 1 21.5 18.6 2.5 psma14a 14 15.6 1 23.2 17.2 2.5 psma15a 15 16.7 1 24.4 16.4 2.5 psma16a 16 17.8 1 26.0 15.4 2.5 psma17a 17 18.9 1 27.6 14.5 2.5 psma18a 18 20.0 1 29.2 13.7 2.5 psma20a 20 22.2 1 32.4 12.3 2.5 psma22a 22 24.4 1 35.5 11.3 2.5 psma24a 24 26.7 1 38.9 10.3 2.5 psma26a 26 28.9 1 42.1 9.5 2.5 psma28a 28 31.1 1 45.4 8.8 2.5 psma30a 30 33.3 1 48.4 8.3 2.5 psma33a 33 36.7 1 53.3 7.5 2.5 note 1. tolerance and voltage designation: tolerance designation - the type number listed indicates a tolerance of . 5% psma36a 36 40.0 1 58.1 6.9 2.5 psma40a 40 44.4 1 64.5 6.2 2.5 psma43a 43 47.8 1 69.4 5.8 2.5 psma45a 45 50.0 1 72.2 5.5 2.5 psma48a 48 53.3 1 77.4 5.2 2.5 psma51a 51 56.7 1 82.4 4.9 2.5 psma54a 54 60.0 1 87.1 4.6 2.5 psma58a 58 64.4 1 93.6 4.3 2.5 psma60a 60 66.7 1 96.8 4.1 2.5 psma64a 64 71.1 1 103.0 3.9 2.5 psma70a 70 77.8 1 113.0 3.5 2.5 psma75a 75 83.3 1 121.0 3.3 2.5 psma78a 78 86.7 1 126.0 3.2 2.5 2 of 3 www.sunmate.tw
fig.2 maximum total power dissipation as a function of temperature. solid line: tie-point temperature. dotted line: ambient temperature; device mounted on an al 2 o 3 printed-circuit board as shown in fig.4. handbook, halfpage 0 200 4 0 2 1 3 mgr463 p tot (w) 100 t ( c) t j =25 c prior to surge. fig.3 maximum non-repetitive peak reverse power dissipation as a function of pulse duration (exponential pulse). handbook, halfpage 10 - 2 10 2 10 3 10 4 10 - 1 1 t 2 (ms) p rsm (w) 10 mgr465 fig.4 printed-circuit board for surface mounting. dimensions in mm. msb213 4.5 2.5 1.25 50 50 handbook, halfpage mgd521 i rsm (%) 100 90 50 10 t 1 t 2 t fig.5 non-repetitive peak reverse current pulse definition. in accordance with iec 60-1, section 8 . t 1 =10 m s. t 2 = 1000 m s. 3 of 3 www.sunmate.tw
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