dimensions in inches and (millimeters) - 590 - sma/do-214ac features for surface mounted applications in order to optimize board space low profile package built-in strain relief glass passivated junction low inductance typical i r less than 0.5 a above 11v high temperature soldering guaranteed: 260 o c / 10 seconds at terminals plastic package has underwriters laboratory flammability classification 94v-0 mechanical data case: molded plastic over passivated junction polarity: color band denotes positive end (cathode) standard packaging: 12mm tape weight: 0.064 gram maximum ratings and electrical characteristics rating at 25 o c ambient temperature unless otherwise specified. type number symbol value units dc power dissipation at t l =75 o c, measure at zero lead length ( note 1 ) derate above 75 o c p d 1.5 20 watts mw/ o c peak forward surge current, 8.3 ms single half sine-wave superimposed on rated load (jedec method) (note 1, 2) i fsm 10.0 amps operating and storage temperature range t j , t stg -55 to + 150 o c notes: 1. mounted on 5.0mm 2 (0.013mm thick) land areas. 2. measured on 8.3ms single half si ne-wave or equivalent square wave, duty cycle=4 pulses per minute maximum . 1sma5926-1sma5956 1.watts surface mount silicon zener diode http://www.luguang.cn mail:lge@luguang.cn
- 591 - electrical characteristics (ta=25 o c unless otherwise noted) v f =1.5v max, i f =200ma for all types. maximum device test dc zener device marking v z @ i zt current current (note 1) code min nom max i zt z zt @ i zt i zm v v(notes 2) v ma ohms ohms ma ua volts ma (dc) 1sma5926 926a 10.45 11 11.55 34.1 5.5 550 0.25 0.5 8.4 136 1sma5927 927a 11.40 12 12.60 31.2 6.5 550 0.25 0.5 9.1 125 1sma5928 928a 12.35 13 13.65 28.8 7.0 550 0.25 0.5 9.9 115 1sma5929 929a 14.25 15 15.75 25.0 9.0 600 0.25 0.5 11.4 100 1sma5930 930a 15.20 16 16.80 23.4 10.0 600 0.25 0.5 12.2 94 1sma5931 931a 17.10 18 18.90 20.8 12 650 0.25 0.5 13.7 83 1sma5932 932a 19.00 20 21.00 18.7 14 650 0.25 0.5 15.2 75 1sma5933 933a 20.90 22 23.10 17.0 17.5 650 0.25 0.5 16.7 68 1sma5934 934a 22.80 24 25.20 15.6 19 700 0.25 0.5 18.2 63 1sma5935 935a 25.65 27 28.35 13.9 23 700 0.25 0.5 20.6 56 1sma5936 936a 28.50 30 31.50 12.5 26 750 0.25 0.5 22.8 50 1sma5937 937a 31.35 33 34.65 11.4 33 800 0.25 0.5 25.1 45 1sma5938 938a 34.20 36 37.80 10.4 38 850 0.25 0.5 27.4 42 1sma5939 939a 37.05 39 40.95 9.6 45 900 0.25 0.5 29.7 38 1sma5940 940a 40.85 43 45.15 8.7 53 950 0.25 0.5 32.7 35 1sma5941 941a 44.65 47 49.35 8.0 67 1000 0.25 0.5 35.8 32 1sma5942 942a 48.45 51 53.55 7.3 70 1100 0.25 0.5 38.8 29 1sma5943 943a 53.20 56 58.80 6.7 86 1300 0.25 0.5 42.6 27 1sma5944 944a 58.90 62 65.10 6.0 100 1500 0.25 0.5 47.1 24 1sma5945 945a 64.60 68 71.40 5.5 120 1700 0.25 0.5 51.7 22 1sma5946 946a 71.25 75 78.75 5.0 140 2000 0.25 0.5 56.0 20 1sma5947 947a 77.90 82 86.10 4.6 160 2500 0.25 0.5 62.2 18 1sma5948 948a 86.45 91 95.55 4.1 200 300 0.25 0.5 69.2 16 1sma5949 949a 95.00 100 105.00 3.7 250 3100 0.25 0.5 76.0 15 1SMA5950 950a 104.5 110 115.50 3.4 300 4000 0.25 0.5 83.6 13 1sma5951 951a 114.0 120 126.00 3.1 360 4500 0.25 0.5 91.2 12 1sma5952 952a 123.5 130 136.50 2.9 450 5000 0.25 0.5 98.8 11 1sma5953 953a 142.5 150 157.50 2.5 600 6000 0.25 0.5 114.0 10 1sma5954 954a 152.0 160 168.00 2.3 700 6500 0.25 0.5 121.6 9 1sma5955 955a 171.0 180 189.00 2.1 900 7000 0.25 0.5 136.8 8 1sma5956 956a 190.0 200 210.00 1.9 1200 8000 0.25 0.5 152.0 7 notes: 1. tolerance and voltage regulation designat ion - the type number listed indicates a tolerance of 5%. 2. vz limits are to be guaranteed at thermal equilibrium. nominal zener voltage zener impedance leakage current z zk @ i zk i r @ v r 1sma5926-1sma5956 1.watts surface mount silicon zener diode http://www.luguang.cn mail:lge@luguang.cn
ratings and characteristic curves (1sma5926 thru 1sma5956) version: b07 fig.1- steady state power derating fig.2- vz = 12 thru 68 volts fig.3- zener voltage - 14 to 68 volts t, temperature( c) o fig.4- effect of zener voltage v zener voltage (volts) z , p maximum power dissipation (watts) d , i zener current (ma) z , o temperature coefficient (mv/ c) vz , o z , dynamic impedance (ohms) z v zener voltage (volts) z , 0 0 25 50 75 100 125 150 0.8 1.6 2.4 3.2 4 t a t l 0 0.1 10 20 30 40 50 60 70 80 1 10 100 v zener voltage (volts) z , v@i zz1 10 10 100 100 i =1ma z(dc) 10 ma 20 ma i=0.1i z(ms) z(dc) 10 100 10 100 1sma5926-1sma5956 1.watts surface mount silicon zener diode http://www.luguang.cn mail:lge@luguang.cn
fig.5- capacitance curve fig.6- typical pulse rating curve fig.7- pulse waveform fig.8- pulse waveform c, capacitance (pf) p , peak power (kw) pk ippm, peak pulse current (%) breakdown voltage (volts) tp, pulse width (ms) t, time (ms) t, time (ms) measured @ zero bias measured @ v/2 z t = 25 c j o 10 100 10 100 1000 0.01 0.01 0.1 1 10 0.1 1 10 nonrepetitive, exponential pulse waveform, t = 25 c j o t = 25 c pw (i ) is defined as the point where the peak current decays to 50% of i a d o pp- 10 s peak value i ppm half value - i /2 pp 10/1000 s waveform as defined by r.e.a. t d 0 0 12 345 20 40 60 80 100 120 ippm, peak pulse current (%) t=8 s 0.5 i peak 0.9 i peak 0.1 i peak t 20 s 8/20 s waveform as defined by ansi c62.1 and iec 801-5, 0 0 0.02 0.04 0.06 0.08 0.1 20 40 60 80 100 120 ratings and characteristic curves (1sma5926 thru 1sma5956) 1sma5926-1sma5956 1.watts surface mount silicon zener diode http://www.luguang.cn mail:lge@luguang.cn
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