zener voltage regulators 500 mw sod?123 surface mount three complete series of zener diodes are offered in the convenient, surface mount plastic sod?123 package. these devices provide a convenient alternative to the leadless 34?package style. features ? 500 mw rating on fr?4 or fr?5 board ? wide zener reverse voltage range ? 1.8 v to 43 v ? package designed for optimal automated board assembly ? small package size for high density applications ? esd rating of class 3 (>16 kv) per human body model ? mechanical characteristics: case: void-free, transfer-molded, thermosetting plastic case finish: corrosion resistant finish, easily solderable maximum case temperature for soldering purposes: 260 c for 10 seconds polarity: cathode indicated by polarity band flammability rating: ul 94 v?0 maximum ratings rating symbol max unit total power dissipation on fr?5 board, (note 1) @ t l = 75 c derated above 75 c p d 500 6.7 mw mw/ c thermal resistance, (note 2) junction?to?ambient r ja 340 c/w thermal resistance, (note 2) junction?to?lead r jl 150 c/w junction and storage temperature range t j , t stg ?55 to +150 c maximum ratings are those values beyond which device damage can occur. maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. if these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. fr?5 = 3.5 x 1.5 inches, using the minimum recommended footprint. 2. thermal resistance measurement obtained via infrared scan method. 1 cathode 2 anode sod?123 1 2 device package shipping ordering information marking diagram 3000/tape & reel lmsz4xxxt3g sod?123 10000/tape & reel lmsz4xxxt1g sod?123 lmsz4xxxt1g we declare that the material of product compliance with rohs requirements. leshan radio company, ltd. aa aa aa xx = device code m = date code = pb?free package xx m 1/6
lmsz4xxxt1g electrical characteristics (t a = 25 c unless otherwise noted, v f = 0.95 v max. @ i f = 10 ma) symbol parameter v z reverse zener voltage @ i zt i zt reverse current i r reverse leakage current @ v r v r reverse voltage i f forward current v f forward voltage @ i f zener voltage regulator i f v i i r i zt v r v z v f leshan radio company, ltd. 2/6
electrical characteristics (t a = 25 c unless otherwise noted, v f = 0.9 v max. @ i f = 10 ma) device device marking zener voltage (note 3) leakage current v z (volts) @ i zt i r @ v r min nom max a a volts lmsz4678t1g cc 1.71 1.8 1.89 50 7.5 1 lmsz4679t1g cd 1.90 2.0 2.10 50 5 1 lmsz4681t1g cf 2.28 2.4 2.52 50 2 1 lmsz4682t1g ch 2.565 2.7 2.835 50 1 1 lmsz4683t1g cj 2.85 3.0 3.15 50 0.8 1 lmsz4684t1g ck 3.13 3.3 3.47 50 7.5 1.5 lmsz4686t1g cn 3.70 3.9 4.10 50 5 2 lmsz4687t1g cp 4.09 4.3 4.52 50 4 2 lmsz4688t1g ct 4.47 4.7 4.94 50 10 3 lmsz4689t1g cu 4.85 5.1 5.36 50 10 3 LMSZ4691T1G ca 5.89 6.2 6.51 50 10 5 lmsz4692t1g cx 6.46 6.8 7.14 50 10 5.1 lmsz4693t1g cy 7.13 7.5 7.88 50 10 5.7 lmsz4694t1g cz 7.79 8.2 8.61 50 1 6.2 lmsz4695t1g dc 8.27 8.7 9.14 50 1 6.6 lmsz4696t1g dd 8.65 9.1 9.56 50 1 6.9 lmsz4697t1g de 9.50 10 10.50 50 1 7.6 lmsz4698t1g df 10.45 11 11.55 50 0.05 8.4 lmsz4699t1g dh 11.40 12 12.60 50 0.05 9.1 lmsz4700t1g dj 12.35 13 13.65 50 0.05 9.8 lmsz4701t1g dk 13.30 14 14.70 50 0.05 10.6 lmsz4702t1g dm 14.25 15 15.75 50 0.05 11.4 lmsz4703t1g dn 15.20 16 16.80 50 0.05 12.1 lmsz4704t1g dp 16.15 17 17.85 50 0.05 12.9 lmsz4705t1g dt 17.10 18 18.90 50 0.05 13.6 lmsz4706t1g du 18.05 19 19.95 50 0.05 14.4 lmsz4707t1g dv 19.00 20 21.00 50 0.01 15.2 lmsz4708t1g da 20.90 22 23.10 50 0.01 16.7 lmsz4709t1g dx 22.80 24 25.20 50 0.01 18.2 lmsz4710t1g dy 23.75 25 26.25 50 0.01 19.0 lmsz4711t1g ea 25.65 27 28.35 50 0.01 20.4 lmsz4712t1g ec 26.60 28 29.40 50 0.01 21.2 lmsz4713t1g ed 28.50 30 31.50 50 0.01 22.8 lmsz4714t1g ee 31.35 33 34.65 50 0.01 25.0 lmsz4715t1g ef 34.20 36 37.80 50 0.01 27.3 lmsz4716t1g eh 37.05 39 40.95 50 0.01 29.6 lmsz4717t1g ej 40.85 43 45.15 50 0.01 32.6 3. nominal zener voltage is measured with the device junction in thermal equilibrium at t l = 30 c 1 c. lmsz4680t1g leshan radio company, ltd. lmsz4685t1g cm 3.42 3.6 3.78 50 7.5 2 ce 2.09 2.2 2.31 50 4 1 lmsz4690t1g cv 5.32 5.6 5.88 50 10 4 3/6 lmsz4xxxt1g
typical characteristics vz , temperature coefficient (mv/ c) v z , nominal zener voltage (v) ?3 ?2 ?1 0 1 2 3 4 5 6 7 8 12 11 10 9 8 7 6 5 4 3 2 figure 1. temperature coefficients (temperature range ? 55 c to +150 c) typical t c values v z @ i zt vz , temperature coefficient (mv/ c) 100 10 1 10 100 v z , nominal zener voltage (v) figure 2. temperature coefficients (temperature range ? 55 c to +150 c) v z @ i zt 1.2 1.0 0.8 0.6 0.4 0.2 0 150 125 100 75 50 25 0 t, temperature (5c) figure 3. steady state power derating p d versus t a p d versus t l p pk , peak surge power (watts) 0.1 pw, pulse width (ms) figure 4. maximum nonrepetitive surge power 1 10 100 1000 1000 100 10 1 rectangular waveform, t a = 25 c 100 v z , nominal zener voltage figure 5. effect of zener voltage on zener impedance 10 1 z zt , dynamic impedance ( ) 1000 100 10 1 t j = 25 c i z(ac) = 0.1 i z(dc) f = 1 khz i z = 1 ma 5 ma 20 ma v f , forward voltage (v) figure 6. typical forward voltage 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.4 i f , forward current (ma) 1000 100 10 1 75 v (mmsz5267bt1) 91 v (mmsz5270bt1) 150 c 75 c 25 c 0 c typical t c values p d , power dissipation (watts) leshan radio company, ltd. 4/6 lmsz4xxxt1g
typical characteristics c, capacitance (pf) 100 v z , nominal zener voltage (v) figure 7. typical capacitance 1000 100 10 1 10 1 bias at 50% of v z nom t a = 25 c 0 v bias 1 v bias 12 v z , zener voltage (v) 100 10 1 0.1 0.01 10 8 6 4 2 0 t a = 25 c i z , zener current (ma) v z , zener voltage (v) 100 10 1 0.1 0.01 10 30 50 70 90 t a = 25 c i r , leakage current ( a) 90 v z , nominal zener voltage (v) figure 8. typical leakage current 1000 100 10 1 0.1 0.01 0.001 0.0001 0.00001 80 70 60 50 40 30 20 10 0 +150 c +25 c ?55 c i z , zener current (ma) figure 9. zener voltage versus zener current (v z up to 12 v) figure 10. zener voltage versus zener current (12 v to 91 v) leshan radio company, ltd. 5/6 lmsz4xxxt1g
package dimensions sod?123 case 425?04 issue e style 1: pin 1. cathode 2. anode 1.22 0.048 0.91 0.036 2.36 0.093 4.19 0.165 mm inches scale 10:1 soldering footprint* notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. aaaa aaaa aaaa e b d a l c 1 2 a1 dim min nom max millimeters inches a 0.94 1.17 1.35 0.037 a1 0.00 0.05 0.10 0.000 b 0.51 0.61 0.71 0.020 c 1.60 0.15 0.055 d 1.40 1.80 e 2.54 2.69 2.84 0.100 ??? 3.68 0.140 l 0.25 3.86 0.010 h e 0.046 0.002 0.024 0.063 0.106 0.145 0.053 0.004 0.028 0.071 0.112 0.152 min nom max 3.56 h e ??? ??? ??? 0.006 ??? ??? ??? ??? leshan radio company, ltd. 6/6 lmsz4xxxt1g
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