technical data sheet 6 lake street, lawrence, ma 01841 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 website: http: //www.microsemi.com 50 watt zener diodes qualified per mil-prf-19500/114 t4-lds-0076 rev. 2 (101151) page 1 of 6 devices levels 1n2804b thru 1n2846b & rb jan and jantx 1n4557b thru 1n4564b & rb jantxv b = standard polarity: rb = reverse polarity description to-3 (do-204ad) these high power 50w zener diodes represented by the jedec registered 1n2804b thru 1n2846b and 1n4557b thru 1n4564b series provide voltage regulation in a selection over a 3.9v to 200v broad range of voltages. they may be operated up to 50w with adequate mounting and heat sinki ng with their low thermal resistance. these zeners are also available in jan, jantx, jantxv military qualifications. microsemi also offers numerous other ze ner products to meet higher and lower power applications. features ? jedec registered 1n2804 thru 1n2846b and 1n4557 thru 1n4564b ? internal solder bond construction ? hermetically sealed (welded) ? zener voltage 3.9v to 200v ? also available in jan, jantx, and jantxv qualifications per mil-prf- 19500/114 by adding the jan, jantx, or jantxv prefixes to part numbers for desired level of screening; (e.g. jantx1n2804b, etc. ? standard polarity is anode to case ? reverse polarity with cathode to case by designating r suffix in part number, e.g. 1n28 factory for surface mount equivalents 04rb, etc ? consult factory for surface mount equivalents
technical data sheet 6 lake street, lawrence, ma 01841 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 website: http: //www.microsemi.com 50 watt zener diodes qualified per mil-prf-19500/114 t4-lds-0076 rev. 2 (101151) page 2 of 6 applications / benefits ? regulates voltage over a broad operatin g current and temperature range ? standard voltage tolerances are +/- 5% with b suffix ? consult factory for +/-10% with an a suffix, +/-20% w ith no suffix, +/-2% with a c suffix and +/-1% with a d suffix respectively ? reverse polarity available ? nonsensitive to esd per mil-std-750 method 1020 ? inherently radiation hard as described in microsemi micronote 050 maximum ratings ? junction temperatures: -65c to +175c ? storage temperatures: -65c to +200c ? dc power dissipation: 50 watts at t c < 75c ? power derating: 0.5w/c above 75c ? forward voltage @ 10a: 1.5 volts ? thermal resistance: 2.0c/w maximum junction to base (1.5c/w typical) ? solder temperatures: 260c for 10 s (max) mechanical and packaging ? case: industry standard to-3 (to-204ad), herm etically sealed, 0.052 inch diameter pins. ? finish: all external surfaces are corrosi on resistant and terminal solderable. ? polarity: standard polarity units are connected anode to case. reverse polarity (cathode to case) is indicated by suffix r. in either example, both pins are common with one another as anode or cathode (see circuit on last page). ? weight: 15 grams. ? mounting hardware: consult factory for optional insulator and sheet metal screws ? see package dimensions on last page
technical data sheet 6 lake street, lawrence, ma 01841 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 website: http: //www.microsemi.com 50 watt zener diodes qualified per mil-prf-19500/114 t4-lds-0076 rev. 2 (101151) page 3 of 6 electrical characteristics @ 30c case temperature jedec type no. (note 1) nominal zener voltage v z @ i zt (note 2) volts zener test current ( i zt ) ma max. dynamic impedance (note 3) max. dc zener current ( i zm ) @ 75 o c stud temp. (note 4) ma typical temp. coeff. vz %/ o c max** reverse current i r @ v r polarity z zt @ i zt ohms z zk @ 1ma (i zk ) ohms a volts ?1n4557b ?1n4558b ?1n4559b ?1n4560b ?1n4561b ?1n4562b 1n4563b 1n4564b 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 3200 2900 2650 2450 2250 2000 1850 1650 0.16 0.16 0.12 0.12 0.12 0.14 0.16 0.24 400 500 600 650 900 1000 200 100 11,900 10,650 9,700 8,900 8,100 7,300 6,650 6,050 -0.046 -0.033 -0.015 +/-0.010 +0.03 +0.049 +0.053 +0.057 150 150 100 20 20 20 10 10 0.5 0.5 1 1 1 2 2 3 ?1n2804b ?1n2805b ?1n2806b ?1n2807b ?1n2808b ?1n2809b 6.8 7.5 8.2 9.1 10 11 1850 1700 1500 1370 1200 1100 0.2 0.3 0.4 0.5 0.6 0.8 70 70 70 70 80 80 7,400 6,600 5,800 5,300 4,800 4,300 .040 .045 .048 .050 .055 .060 150 100 50 25 25 10 4.5 5 5.4 6.1 6.7 8.4 ?1n2810b ?1n2811b 1n2812b ?1n2813b ?1n2814b 1n2815b 12 13 14 15 16 17 1000 960 890 830 780 740 1.0 1.1 1.2 1.4 1.6 1.8 80 80 80 80 80 80 4,000 3,700 3,400 3,100 2,950 2,750 .065 .065 .070 .070 .070 .075 10 10 10 10 10 10 9.1 9.9 10.6 11.4 12.2 13.0 ?1n2816b 1n2817b ?1n2818b ?1n2819b ?1n2820b 1n2821b 18 19 20 22 24 25 700 660 630 570 520 500 2.0 2.2 2.4 2.5 2.6 2.7 80 80 80 80 80 90 2,550 2,450 2,350 2,100 1,950 1,850 .075 .075 .075 .080 .080 .080 10 10 10 10 10 10 13.7 14.4 15.2 16.7 18.2 19 ?1n2822b ?1n2823b ?1n2824b ?1n2825b ?1n2826b ?1n2827b 27 30 33 36 39 43 460 420 380 350 320 290 2.8 3.0 3.2 3.5 4.0 4.5 90 90 90 90 90 90 1,650 1,550 1,450 1,300 1,175 1,075 .085 .085 .085 .085 .090 .090 10 10 10 10 10 10 20.6 22.8 25.1 27.4 29.7 32.7 1n2828b ?1n2829b 1n2830b ?1n2831b ?1n2832b ?1n2833b 45 47 50 51 56 62 280 270 250 245 220 200 4.5 5.0 5.0 5.2 6 7 100 100 100 100 110 120 1,030 980 935 925 825 735 .090 .090 .090 .090 .090 .090 10 10 10 10 10 10 34.2 35.8 38 38.8 42.6 47.1 ?1n2834b ?1n2835b ?1n2836b ?1n2837b ?1n2838b 1n2839b 68 75 82 91 100 105 180 170 150 140 120 120 8 9 11 15 20 25 140 150 160 180 200 210 670 600 550 470 450 430 .090 .090 .090 .090 .090 .095 10 10 10 10 10 10 51.7 56 62.2 69.2 76 79.8 ?1n2840b ?1n2841b ?1n2842b ?1n2843b ?1n2844b ?1n2845b ?1n2846b 110 120 130 150 160 180 200 110 100 95 85 80 68 65 30 40 50 75 80 90 100 220 240 275 400 450 525 600 410 375 345 300 285 250 220 .095 .095 .095 .095 .095 .095 .100 10 10 10 10 10 10 10 83.6 91.2 98.8 114.0 121.6 136.8 152.0
technical data sheet 6 lake street, lawrence, ma 01841 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 website: http: //www.microsemi.com 50 watt zener diodes qualified per mil-prf-19500/114 t4-lds-0076 rev. 2 (101151) page 4 of 6 * jedec registered data. ** not jedec data. ? have jan, jantx and jantxv qualifications to mil-s-19500/114. see further notes on following page. notes: 1. the jedec type numbers shown (b suffix) have a +/ - 5% tolerance on nominal zener voltage. if other tolerance is required consult factory. the suffix a is u sed to identify +/-10% tolerance; no suffix or just r indicates +/-20% tolerance: c suffix indicates +/ -2% tolerance; and d suffix indicates +/-1%. 2. standard polarity units have the anode connected to the case. reverse polarity (cathode-to-case) units are available and are indicated by suffix r in the part number. 3. zener voltage (vz) is measured with junction in thermal equilibrium with 30c base temperature. the test currents (izt) have been selected so that at nominal voltages the dissipation is a constant 12.5 watts. this results in a nominal junction temperature rise of 18.75 c. 4. the zener impedance is derived from the 60 cycle ac volta ge, which results when an ac current having an rms value equal to 10% of the dc zener current (izt or izk) is superimposed on izt or izk. zener impedance is measured at 2 points to ensure a sharp knee on the br eakdown curve and to eliminate unstable units. a curve showing the variation of zener impedance vs. zener curre nt for six representative types is shown in figure 3. also see micronote 202 for further information. 5. the values of izm are calculated for a +/-5% tolerance on nominal zener voltage. allowance has been made for the rise in zener voltage above vzt that results from zener impedance and the increase in junction temperature as power dissipation approaches 50 watts. in the case of individual diodes, izm is that value of current that results in a dissipation of 50 watts.
technical data sheet 6 lake street, lawrence, ma 01841 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 website: http: //www.microsemi.com 50 watt zener diodes qualified per mil-prf-19500/114 t4-lds-0076 rev. 2 (101151) page 5 of 6 graphs case temperature o c figure 2 power derating curve figure group 3 typical zener impedance vs. ze ner current fo r types shown rated power dissipation - watts typical circuit connections for anode-to-case and cathode-to-case polarities (standard and reverse polarities, respectively).
technical data sheet 6 lake street, lawrence, ma 01841 1-800-446-1158 / (978) 620-2600 / fax: (978) 689-0803 website: http: //www.microsemi.com 50 watt zener diodes qualified per mil-prf-19500/114 t4-lds-0076 rev. 2 (101151) page 6 of 6 package dimensions notes: 1. dimensions are in inches. 2. milimeter equivalents are given for general information only. 3. these dimensions should be measured at points .050 inch (1.27mm) + .005 inch (0.13mm) -.000 inch (0.00mm) below seating plane. 4. the seating plane of the header shall be flat within .001 (0.03mm) concave to .004 inch (0.10mm) convex .001 inch (0.003mm) cocave to .006 inch (0.15mm) convex overall. 5. pins 1 and 2 are internally connected with an internal jumper. 6. devices wih b suffix have the anode inte rnally connected to the case and devices with rb suffix (reverse polarity) have the cathode internally connected to the case. 7. in accordance with asme y14.5m , diameters are equivalent to x symbology. figure 1 . physical dimensions (similar to to-3) dimensions ltr inches millimeters notes min max min max ch .270 .380 6.86 9.65 ld .048 .053 0.97 1.35 cd .875 22.23 ps .420 .440 10.67 11.18 3 ps 1 .205 .225 5.21 5.72 3 ht .060 .135 1.52 3.42 ll .312 .500 7.92 12.70 l 1 .050 1.27 mhd .151 .165 3.84 4.09 mhs 1.177 1.197 29.90 30.40 hr .495 .525 12.57 13.34 hr 1 .131 .188 3.33 4.78 s 1 .655 .675 16.64 17.15
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