digitron semiconductors 144 market street kenilworth nj 07033 usa phone +1.908.245-7200 1n2970-1n3015b and 1n3993 thru 1n4000a 10 watt zener diodes maximum ratings junction temperatures -65c to +175c storage temperatures -65c to +200c dc power dissipation 10 watts power derating 80 mw/c above 50c forward voltage @ 2.0 a: 1.5 volts thermal resistance 10 c/w (typical) junct ion to case (stud) solder temperatures 260c for 10 s (max) electrical characteristics sales@digitroncorp.com nominal zener voltage v z @ i zt (note 2) zener test current (i zt ) max dynamic impedance (note 3) max dc zener current (i zm ) @ 75c stud temp (note 4) typical temp ceoff vz max. reverse current i r @ v r type no. (note 1) volts ma z zt @ i zt ohms z zk @ 1ma (i zk ) ohms ma %/c a volts polarity 1n3993a 3.9 640 2.0 400 2380 -.046 100 0.5 1n3994a 4.3 580 1.5 400 2130 -.033 100 0.5 1n3995a 4.7 530 1.2 500 1940 -.015 50 1.0 1n3996a 5.1 490 1.1 550 1780 +/-.010 10 1.0 1n3997a 5.6 445 1.0 600 1620 +.030 10 1.0 1n3998a 6.2 405 1.1 750 1460 +.049 10 2.0 1n3999a 6.8 370 1.2 500 1330 +.040 10 2.0 1n4000a 7.5 335 1.3 250 1210 +.045 10 3.0 standard polarity cathode to stud 1n2970b 6.8 370 1.2 500 1320 .040 150 5.2 1n2971b 7.5 335 1.3 250 1180 .045 100 5.7 1n2972b 8.2 305 1.5 250 1040 .048 50 6.2 1n2973b 9.1 275 2.0 250 960 .051 25 6.9 1n2974b 10 250 3 250 860 .055 25 7.6 1n2975b 11 230 3 250 780 .060 10 8.4 1n2976b 12 210 3 250 720 .065 10 9.1 1n2977b 13 190 3 250 660 .065 10 9.9 1n2978b 14 180 3 250 600 .070 10 10.5 1n2979b 15 170 3 250 560 .070 10 11.4 1N2980B 16 155 4 250 530 .070 10 12.2 1n2981b 17 145 4 250 500 .075 10 13.0 1n2982b 18 140 4 250 460 .075 10 13.7 1n2983b 19 130 4 250 440 .075 10 14.0 1n2984b 20 125 4 250 420 .075 10 15.2 1n2985b 22 115 5 250 380 .080 10 16.7 1n2986b 24 105 5 250 350 .080 10 18.2 1n2987b 25 100 6 250 310 .080 10 18.2 1n2988b 27 95 7 250 300 .085 10 20.6 1n2989b 30 85 8 300 280 .085 10 22.8 1n2990b 33 75 9 300 260 .085 10 25.1 standard polarity anode to stud fax +1.908.245-0555 www.digitroncorp.com rev. 20120730
digitron semiconductors 144 market street kenilworth nj 07033 usa phone +1.908.245-7200 1n2970-1n3015b and 1n3993 thru 1n4000a 10 watt zener diodes 1n2991b 36 70 10 300 230 .085 10 27.4 1n2992b 39 65 11 300 210 .090 10 29.7 1n2993b 43 60 12 400 195 .090 10 32.7 1n2994b 45 55 13 400 185 .090 10 33.0 1n2995b 47 55 14 400 175 .090 10 35.8 1n2996b 50 50 15 500 165 .090 10 36.0 1n2997b 51 50 15 500 160 .090 10 38.8 1n2998b 52 50 15 500 160 .090 10 39.0 1n3099b 56 45 16 500 150 .090 10 42.6 1n3000b 62 40 17 600 130 .090 10 47.1 1n3001b 68 37 18 600 120 .090 10 51.7 1n3002b 75 33 22 600 110 .090 10 56.0 1n3003b 82 30 25 700 100 .090 10 62.2 1n3004b 91 28 35 800 85 .090 10 69.2 1n3005b 100 25 40 900 80 .090 10 76.0 1n3006b 105 25 45 1000 75 .095 10 76.0 1n3007b 110 23 55 1100 72 .095 10 83.6 1n3008b 120 20 75 1200 67 .095 10 91.2 1n3009b 130 19 100 1300 62 .095 10 98.8 1n3010b 140 18 125 1400 58 .095 10 100.0 1n3011b 150 17 175 1500 54 .095 10 114.0 1n3012b 160 16 200 1600 50 .095 10 121.6 1n3013b 175 14 250 1750 46 .095 10 135.0 1n3014b 180 14 260 1850 45 .095 10 136.8 1n3015b 200 12 300 2000 40 .100 10 152.0 standard polarity anode to stud note 1: 1n3993-1n4000 series: suffix a indicates +/-5% tolerance, no suffix indicates +/-10% tolerance. 1n2970-1n3015 series: suffix b indicates +/-5% tolerance, suffix a indicates +/-10% no suffix indicates +/-20% tolerance. note 2: the electrical characteristics are measured after allowi ng the device to stabilize for 90 seconds with 30c base temper ature note 3: the zener impedance (z zt ) is derived from the 60 hz 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 on i zt or i zk. when making zener impedance measurements at the i zk test point, it may be necessary to insert a 60 hz band pass filter between the diode and the voltmeter to avoid errors resulting from low level noise signals. note 4: these values of i zm may be exceeded in the case of the individu al diodes. the values shown are calculated for the worst case that is a unit of +/- 5% tolerance at the high voltage end of its tolerance range. al lowance has also been made for the rise in zener voltage above v zt, which results from zener impedance and the increase in junction temperature as power dissipation approaches 10 watts. mechanical characteristics case do-4, 7/16? hex, stud with 10-32 threads, we lded, hermetically sealed metal with glass polarity 1n3993-1n4000 : standard polarity is cathode to stud. reverse polarity (anode to stud) indicated by suffix ?r?. 1n2970-1n3015: standard polarity is anode to stud. reverse polarity indicated by suffix ?r?. available non-rohs (standard) or rohs compliant (add pbf suffix). available as ?hr? (high reliability) screened per mil-prf- 19500, jantx level. add ?hr? suffix to base part number. sales@digitroncorp.com fax +1.908.245-0555 www.digitroncorp.com rev. 20120730
digitron semiconductors 144 market street kenilworth nj 07033 usa phone +1.908.245-7200 1n2970-1n3015b and 1n3993 thru 1n4000a 10 watt zener diodes sales@digitroncorp.com inches millimeters dim min max min max a 0.470 0.505 11.940 12.830 b 0.424 0.437 10.770 11.100 c - 0.405 - 10.290 d - 0.250 - 6.350 e 0.075 0.175 1.910 4.450 f 0.060 - 1.520 - j 0.422 0.453 10.720 11.510 k - 0.800 - 20.320 p 0.163 0.189 4.140 4.800 q 0.060 - 1.520 - r - 0.424 - 10.77 fax +1.908.245-0555 www.digitroncorp.com rev. 20120730
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