smpz3919b thru smpz3940b vishay general semiconductor document number: 88482 revision: 19-mar-10 for technical questions within your r egion, please contact one of the following: diodesamericas@vishay.com , diodesasia@vishay.com , diodeseurope@vishay.com www.vishay.com 1 new product surface mount power voltage-regulating diodes typical applications for general purpose regulation and protection applications. features ? very low profile - typical height of 1.0 mm ? ideal for automated placement ? low zener impedance ? low regulation factor ? meets msl level 1, per j-std-020, lf maximum peak of 260 c ? compliant to rohs directive 2002/95/ec and in accordance to weee 2002/96/ec ? halogen-free according to iec 61249-2-21 definition mechanical data case: do-220aa (smp) molding compound meets ul 94 v-0 flammability rating. base p/n-m3 - halogen-free and rohs compliant, commercial grade terminals: matte tin plated leads, solderable per j-std-002 and jesd 22-b102 m3 suffix meets jesd 201 class 1a whisker test polarity: color band denotes cathode end notes (1) mounted on pcb with 5.0 mm x 5.0 mm copper pads attached to each terminal (2) mounted on minimum recommended pad layout (3) pulse test: 300 s pulse width, 1 % duty cycle primary characteristics v z 5.6 v to 43 v p d 1.5 w at t l = 75 c p d 0.5 w at t a = 25 c t j max. 150 c do-220aa (smp) esmp tm series maximum ratings (t a = 25 c unless otherwise noted) parameter symbol value unit power dissipation at t l = 75 c (fig. 1) p d (1) 1.5 w power dissipation at t a = 25 c (fig. 1) p d (2) 0.5 w maximum instantaneous forward voltage at 200 ma for all types v f (3) 1.5 v operating junction and storage temperature range t j , t stg - 65 to + 150 c
new product smpz3919b thru smpz3940b vishay general semiconductor www.vishay.com for technical questions within your region, please contact one of the following: diodesamericas@vishay.com , diodesasia@vishay.com , diodeseurope@vishay.com document number: 88482 revision: 19-mar-10 2 notes (1) mounted on pcb with 5.0 mm x 5.0 mm copper pads attached to each terminal (2) mounted on minimum recommended pad layout electrical characteristics symbol parameter v z reverse zener voltage at i zt i zt reverse current z zt maximum zener impedance at i zt i zk reverse current z zk maximum zener impedance at i zk i r reverse leakage current at v r v r reverse voltage i f forward current v f forward voltage at i f i zm maximum dc zener current zener volta g e re g ulator v i f v z v r i r i zt v f electrical characteristics (t a = 25 c unless otherwise noted) part number device marking code zener voltage v z at i zt (v) test current i zt (ma) maximum zener impedance maximum reverse leakage current i r at v r maximum zener current i zm (ma) z zt at i zt z zk at i zk min. nom. max. ( )( )(ma) (a) (v) smpz3919b 19b 5.32 5.6 5.88 66.9 5.0 700 1.0 200 3.0 268 smpz3920b 20b 5.89 6.2 6.51 60.5 2.0 700 1.0 200 4.0 242 smpz3921b 21b 6.46 6.8 7.14 55.1 2.5 400 1.0 200 5.2 221 smpz3922b 22b 7.12 7.5 7.88 50.0 3.0 400 0.5 150 6.0 200 smpz3923b 23b 7.79 8.2 8.61 45.7 3.5 400 0.5 50 6.5 183 smpz3924b 24b 8.64 9.1 9.56 41.2 4.0 500 0.5 10 7.0 165 smpz3925b 25b 9.5 10 10.5 37.5 4.5 500 0.25 2.5 8.0 150 smpz3926b 26b 10.5 11 11.6 34.1 5.5 550 0.25 0.5 8.4 136 smpz3927b 27b 11.4 12 12.6 31.2 6.5 550 0.25 0.5 9.1 125 smpz3928b 28b 12.4 13 13.7 28.8 7.0 550 0.25 0.5 9.9 115 smpz3929b 29b 14.3 15 15.8 25.0 9.0 600 0.25 0.5 11.4 100 smpz3930b 30b 15.2 16 16.8 23.4 10.0 600 0.25 0.5 12.2 94 smpz3931b 31b 17.1 18 18.9 20.8 12.0 650 0.25 0.5 13.7 83 smpz3932b 32b 19.0 20 21.0 18.7 14.0 650 0.25 0.5 15.2 75 smpz3933b 33b 20.9 22 23.1 17.0 17.5 650 0.25 0.5 16.7 68 smpz3934b 34b 22.8 24 25.2 15.6 19.0 700 0.25 0.5 18.2 63 smpz3935b 35b 25.7 27 28.4 13.9 23.0 700 0.25 0.5 20.6 56 smpz3936b 36b 28.5 30 31.5 12.5 26.0 750 0.25 0.5 22.8 50 smpz3937b 37b 31.4 33 34.7 11.4 33.0 800 0.25 0.5 25.1 45 smpz3938b 38b 34.2 36 37.8 10.4 38.0 850 0.25 0.5 27.4 42 smpz3939b 39b 37.1 39 41.0 9.6 45.0 900 0.25 0.5 29.7 38 smpz3940b 40b 40.9 43 45.2 8.7 53.0 950 0.25 0.5 32.7 35 thermal characteristics (t a = 25 c unless otherwise noted) parameter symbol limit unit typical thermal resistance, junction to lead r jl (1) 50 c/w typical thermal resistance, junction to ambient r ja (2) 250 c/w
new product smpz3919b thru smpz3940b vishay general semiconductor document number: 88482 revision: 19-mar-10 for technical questions within your r egion, please contact one of the following: diodesamericas@vishay.com , diodesasia@vishay.com , diodeseurope@vishay.com www.vishay.com 3 ratings and characteristics curves (t a = 25 c unless otherwise noted) ordering information (example) preferred p/n unit weight (g) preferred package code base quantity delivery mode smpz3925b-m3/84a 0.024 84a 3000 7" diam eter plastic tape and reel smpz3925b-m3/85a 0.024 85a 10 000 13" di ameter plastic tape and reel figure 1. steady state power durating figure 2. typical zener voltage t a t l 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 0 25 50 75 100 125 150 p d - maxim u m po w er dissipation ( w ) temperat u re (c) 100 10 1 02 6 10 0.1 v z - zener v oltage ( v ) i z - zener test c u rrent (ma) 15 8 4 379 figure 3. typical zener voltage figure 4. typical temperature coefficients 100 10 1 0204060 0.1 v z - zener v oltage ( v ) i z - zener test c u rrent (ma) 5.0 4.0 3.0 2.0 1.0 0 5.0 6.0 6.5 7.0 v z - temperat u re coefficient (m v /c) v z - zener v oltage ( v ) v z at i zt 5.5
new product smpz3919b thru smpz3940b vishay general semiconductor www.vishay.com for technical questions within your region, please contact one of the following: diodesamericas@vishay.com , diodesasia@vishay.com , diodeseurope@vishay.com document number: 88482 revision: 19-mar-10 4 package outline dimensions in inches (millimeters) figure 5. typical temperature coefficients figure 6. typical junction capacitance 50 40 30 20 10 0 0 20304050 v z - temperat u re coefficient (m v /c) v z - zener v oltage ( v ) v z at i zt 10 10 000 1000 100 10 0 100 c j - j u nction capacitance (pf) v br - breakdo w n v oltage ( v ) meas u red at zero bias 10 meas u red at v z/2 figure 7. typical zener impedance 1000 100 10 10 15 20 25 30 35 40 45 1 i z = 1 ma i z = 20 ma i z = 10 ma v z - zener v oltage ( v ) z z - dynamic impedance ( ) i z(rms) = 0.1 i z(dc) 0.000 (0.00) 0.012 (0.30) 0.013 (0.35) 0.004 (0.10) 0.01 8 (0.45) 0.006 (0.15) 0.045 (1.15) 0.033 (0. 8 5) 0.036 (0.91) 0.024 (0.61) 0.016 (0.40) 0.032 (0. 8 0) 0.053 (1.35) 0.041 (1.05) 0.012 (0.30) ref. 0.105 (2.67) 0.025 (0.635) 0.100 (2.54) 0.030 (0.762) 0.050 (1.27) cathode band 0.142 (3.61) 0.126 (3.19) 0.15 8 (4.00) 0.146 (3.70) 0.0 8 6 (2.1 8 ) 0.074 (1. 88 ) 0.0 8 7 (2.20) 0.103 (2.60) do-220aa (smp)
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