POWER ZENERS 5 Watt, Military FEATURES 2 Times Greater Surge Rating than Conventional 10 Watt Zeners @ Small Physical Size ABSOLUTE MAXIMUM RATINGS Zener Voltage, Vz oo ccc cece cesses cesses ssentennsvevareteressesstesssssiesvessuessssssesiesiersessessenees 6.8 to 390V Continuous Current ... See Table Surge Current (8.3ms) See Table Surge Power Power ...... . .. See Graph See Lead Temperature Derating Curve 65C to +175C perating Temperature . MECHANICAL SPECIFICATIONS 1N4954- 1N4995 JAN, JANTX & JANTXV 1N4996 DESCRIPTION Fused-in-glass, metallurgically-bonded 5 watt zeners, qualified to MIL- S - 19500/356. 1N4954- 1N4955 JAN, JANTX & JANTXV ,1N4996 BODY B Band indicates _-175" TYP. 040" + .001 cathode end 4.4mm 4 ist 03 _ anaes 115" TYP. .145" MAX. 2.9mm a> jresryef | 2.7mm | 975" MIN, , 300" MAX. __ 24.2mm 7.62mm 280" MIN 8.4mm Power Dissipation Max. Surge Power Typical Zener Impedance vs. Lead Temperature Derating Curve vs. Surge Duration vs. Zener Current n:) 100K 1K =; 50K 500 z = SQUARE PULSE g 3 = = z= 6 a 20K w 100 a = 19K g 50 a < a o a 2 a 5K 4 a 4 w a 10 = @ 2K = 5 5 a 1K a a 2 500 G1 x Ss N 5 < 1 Length 200 = from 0 100 4 0 25 50 75 100 125 150 175 100ns) lus 10us 100us Ims 10ms 5 1 5 10 50 100 500 1A LEAD TEMPERATURE (C) SURGE DURATION 1/79 494 ZENER CURRENT (mA) i) aa UNITRODE1N4954-1N4995 JAN, JANTX & JANTXV, 1N4996 Electrical Specifications at 25C Maximum Ratings ; Maximum Zener impedance Maximum Reverse . axi Maximum T gener Test 2x4 Voltage beakage Current Temperature continuous cores ype Voltage urrent Regulation oem. urrent VO | ie Z2@lr | te Sima | Apes | lett |b Ve To@ty, | tm 's Toleratice Volts mA Ohms Ohms Volts nA Volts %iC mA Amps 1N4954* 8 175 1.0 1000 0.7 150 |300 5.2 05 700 40 1N4955* 7.5 175 15 800 0.7 100 | 200 5.7 06 630 32 1N4956* 8.2 150 15 600 0.7 50 | 100 6.2 06 580 24 1N4957* 9.1 150 2.0 400 0.7 25 | 50 6.9 06 520 22 1N4958* 10.0 125 20 125 08 25 | 25 76 07 475 20 1N4959* li 125 2.5 130 0.8 10 | 15 8.4 07 430 19 1N4960* 12 100 2.5 140 0.8 10 | 10 9.1 07 395 18 1N4961* 13 100 3.0 45 0.8 10 | 10 9.9 08 365 16 1N4962* 15 75 3.5 150 10 5{ 5 14 08 315 2 1N4963* 16 75 3.5 155 Ll 5 5 12.2 08 294 10 1N4964* 18 65 40 160 L2 5 5 13.7 085 264 9.0 1N4965* 20 65 45 165 15 2) 2 15.2 085 237 8.0 1N4966* 22 50 5.0 170 1.8 2/ 2 16.7 085 216 70 1N4967* 24 50 5.0 175 2.0 2| 2 18.2 090 198 6.5 1N4968* 27 50 6.0 180 2.0 2; 2 20.6 090 176 6.0 1N4969* 30 40 8 190 2.5 2 2 22.8 090 158 9.5 1N4970* 33 40 10 200 2.8 2 2 25.1 5 144 5.0 1N4971* 36 30 i 220 3.0 2 2 27.4 095 132 45 1N4972* 39 30 14 230 3.0 2| 2 29.7 095 122 40 1N4973* 43 30 20 240 3.3 2 2 32.7 095 n0 3.5 1N4974* 47 25 25 250 3.5 2 2 35.8 095 100 3.2 1N4975* 51 25 27 270 4.0 2 2 38.8 095 92 3.0 1N4976* 56 20 35 320 44 2 2 42.6 .095 84 2.8 1N4977* 62 20 42 400 5.0 2 2 47.1 100 76 2.5 1N4978* 68 20 50 500 5.5 2 2 51.7 .100 70 2.2 1N4979* 75 20 55 620 6.0 2 2 56.0 -100 63.0 2.0 1N4980* 82 15 80 720 6.6 2 2 62.2 .100 58.0 18 1N4981* 91 18 90 760 75 2: 2 69.2 .100 2.5 16 1N4982* 100 12 110 800 8.0 2 2 76.0 .100 47.5 14 1N4983* 110 12 125 1000 9.0 2 2 83.6 100 43.0 12 1N4984* 120 10 170 1150 10 2!) 2 91.2 .100 39.5 1.00 1N4985* 130 10 190 1250 sat 2 2 98.8 105 36.6 0.80 1N4986* 150 8 330 1500 13 2 2 114.0 105 31.6 0.75 1N4987* 160 8 350 1650 14 2 2 121.6 105 29.4 0.70 1N4988* 180 5 450 1750 16 2 2 136.8 110 26.4 0.60 1N4989* 200 5 500 1850 18 2 2 152 110 23.6 0.50 1N4990* 220 5 550 2000 19 2) 2 167 115 21.6 0.50 1N4991* 240 5 650 2050 22 2) 2 182 115 19.8 0.40 IN4992* 270 5 800 2100 25 2{ 2 206 120 17.5 0.35 1N4993* 300 4 950 2150 28 2} 2) 228 120 15.6 0.30 1N4994* 330 4 1175 2200 32 2| 2 251 120 144 0.25 1N4995* 360 3 1400 2300 35 2 2 274 -120 13.0 0.22 1N4996 390 3 1800 2500 40 2 2| 297 -120 12.0 0.20 * Available as JAN, JANTX & JANTXV. TAIl zener voltages are measured with an automated test set using a 35 msec test time. Longer or shorter test times will have a correspond- ing effect on the measured value due to heating effects. Zener impedance is derived from the 60-cycle voltage created when AC current with RMS value of 10% of DC zener test current is super- imposed on the test current. $4BV is obtained by measuring the voltage change when the test current is changed from 10% to 50% of Iz max under DC conditions. Dur- ing this measurement the leads are heat sunk .375 inch from the body and maintained at 25C. * Maximum current based on 5 Watt Rating. See lead temperature derating curves for proper mounting methods. $ Figures shown are for peak sinusoidal surge current of 8.3 msec duration, non-repetitive. The 8.3 ms square pulse rating is 71% of the value shown, tt These specifications apply only to JAN and JANTX UNITRODE CORPORATION + 5 FORBES ROAD LEXINGTON, MA 02173 TEL. (617) 861-6540 TWX (710) 326-6509 TELEX 95-1064 495 PRINTED IN U.S.A,