NTE5240A NTE5296A NTE5240AK NTE5296AK NTE5241A NTE5242A NTE5243A NTE5244A

50 Watt Zener Diodes ±5% Tolerance Features: D Zener Voltage 3.9 to 200V D Low Zener Impedance D Highly Reliable and

NTE5240A NTE5240A thru NTE5296A NTE5296A 50 Watt Zener Diodes ±5% Tolerance Features: D Zener Voltage 3.9 to 200V D Low Zener Impedance D Highly Reliable and Rugged D Also Available in Reverse Polarity (NTE5240AK NTE5240AK thru NTE5296AK NTE5296AK) Maximum Ratings: Operating Junction Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65° to +175°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65° to +175°C DC Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50W Derate Above 75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5W/°C Forward Voltage (IF = 10A), VF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V Note 1. Suffix "A" denotes anode to case polarity, "AK" denotes cathode to case. Electrical Characteristics: (TC = +30°C, unless otherwise specified) Nominal Zener Voltage Vz @ Izt (Note 2) Volts Zener Test Current (Izt) mA NTE5240A NTE5240A 3.9 NTE5241A NTE5241A Maximum Dynamic Impedance (Note 3) Zzt @ Izt Zzk @ 1mA (Izk) Ohms Ohms Maximum DC Zener Current (Izm) mA 3200 0.16 400 11900 0.046 150 0.5 4.3 2900 0.16 500 10650 0.033 150 0.5 NTE5242A NTE5242A 4.7 2650 0.12 600 9700 0.015 100 1.0 NTE5243A NTE5243A 5.1 2450 0.12 650 8900 ±0.010 20 1.0 NTE5244A NTE5244A 5.6 2250 0.12 900 8100 +0.030 29 1.0 NTE5245A NTE5245A 6.0 2125 0.13 950 7700 +0.040 20 1.5 NTE5246A NTE5246A 6.2 2000 0.14 1000 7300 +0.049 20 2.0 NTE5247A NTE5247A 6.8 1850 0.20 70 6600 0.040 300 4.5 NTE5248A NTE5248A 7.5 1700 0.30 70 5900 0.045 125 5.0 NTE5249A NTE5249A 8.2 1500 0.40 70 5200 0.048 50 5.4 NTE Type Number Typical Temperature Coefficient vz %/°C Maximum Leakage Current IR @ VR µA Volts Electrical Characteristics (Cont'd): (TC = +30°C, unless otherwise specified) Nominal Zener Voltage Vz @ Izt (Note 2) Volts Zener Test Current (Izt) mA NTE5250A NTE5250A 8.7 NTE5251A NTE5251A Maximum Dynamic Impedance (Note 3) Zzt @ Izt Zzk @ 1mA (Izk) Ohms Ohms Maximum DC Zener Current (Izm) mA 1435 0.45 70 5000 0.049 37 5.7 9.1 1370 0.50 70 4800 0.050 25 6.1 NTE5252A NTE5252A 10.0 1200 0.60 80 4300 0.055 25 6.7 NTE5253A NTE5253A 11.0 1100 0.80 80 3900 0.060 10 8.4 NTE5254A NTE5254A 12.0 1000 1.00 80 3800 0.065 10 9.1 NTE5255A NTE5255A 13.0 960 1.10 80 3300 0.065 10 9.9 NTE5256A NTE5256A 14.0 890 1.20 80 3000 0.070 10 11.4 NTE5257A NTE5257A 15.0 835 1.40 80 2825 0.070 10 11.8 NTE5258A NTE5258A 16.0 780 1.60 80 2650 0.070 10 12.2 NTE5259A NTE5259A 17.0 740 1.80 80 2500 0.075 10 13.0 NTE5260A NTE5260A 18.0 700 2.00 80 2300 0.075 10 13.7 NTE5261A NTE5261A 19.0 660 2.20 80 2200 0.075 10 13.7 NTE5262A NTE5262A 20.0 630 2.40 80 2100 0.075 10 15.2 NTE5263A NTE5263A 22.0 570 2.50 80 1900 0.080 10 16.7 NTE5264A NTE5264A 24.0 520 2.60 80 1750 0.080 10 18.2 NTE5265A NTE5265A 25.0 500 2.70 90 1550 0.080 10 18.2 NTE5266A NTE5266A 27.0 460 2.80 90 1500 0.085 10 20.6 NTE5267A NTE5267A 28.0 440 2.90 90 1450 0.085 10 21.7 NTE5268A NTE5268A 30.0 420 3.00 90 1400 0.085 10 22.8 NTE5269A NTE5269A 33.0 380 3.20 90 1300 0.085 10 25.1 NTE5270A NTE5270A 36.0 350 3.50 90 1150 0.085 10 27.4 NTE5271A NTE5271A 39.0 320 4.00 90 1050 0.090 10 29.7 NTE5272A NTE5272A 43.0 290 4.50 90 975 0.090 10 32.7 NTE5273A NTE5273A 45.0 280 4.50 100 930 0.090 10 32.7 NTE5274A NTE5274A 47.0 270 5.00 100 880 0.090 10 35.8 NTE5275A NTE5275A 50.0 250 5.00 100 830 0.090 10 38.8 NTE5276A NTE5276A 51.0 245 5.20 100 810 0.090 10 38.8 NTE5277A NTE5277A 52.0 240 5.50 100 790 0.090 10 42.6 NTE5278A NTE5278A 56.0 220 6.00 110 740 0.090 10 42.6 NTE5279A NTE5279A 60.0 210 6.50 115 700 0.090 10 44.8 NTE5280A NTE5280A 62.0 200 7.00 120 660 0.090 10 47.1 NTE5281A NTE5281A 68.0 180 8.00 140 600 0.090 10 51.7 NTE Type Number Typical Temperature Coefficient vz %/°C Maximum Leakage Current IR @ VR µA Volts Electrical Characteristics (Cont'd): (TC = +30°C, unless otherwise specified) Nominal Zener Voltage Vz @ Izt (Note 2) Volts Zener Test Current (Izt) mA NTE5282A NTE5282A 75.0 NTE5283A NTE5283A Maximum Dynamic Impedance (Note 3) Zzt @ Izt Zzk @ 1mA (Izk) Ohms Ohms Maximum DC Zener Current (Izm) mA 170 9.00 150 540 0.090 10 56.0 82.0 150 11.00 160 490 0.090 10 62.2 NTE5284A NTE5284A 91.0 140 15.00 180 420 0.090 10 69.2 NTE5285A NTE5285A 100.0 120 20.00 200 400 0.090 10 76.0 NTE5286A NTE5286A 105.0 120 25.00 210 380 0.095 10 83.0 NTE5287A NTE5287A 110.0 110 30.00 220 365 0.095 10 83.0 NTE5288A NTE5288A 120.0 100 40.00 240 335 0.095 10 91.2 NTE5289A NTE5289A 130.0 95 50.00 275 310 0.095 10 99.8 NTE5290A NTE5290A 140.0 90 60.00 325 290 0.095 10 114.0 NTE5291A NTE5291A 150.0 85 75.00 400 270 0.095 10 114.0 NTE5292A NTE5292A 160.0 80 80.00 450 250 0.095 10 121.6 NTE5293A NTE5293A 175.0 70 85.00 500 230 0.095 10 121.6 NTE5294A NTE5294A 180.0 68 90.00 525 220 0.095 10 136.8 NTE5295A NTE5295A 190.0 66 95.00 561 210 0.098 10 144.4 NTE5296A NTE5296A 200.0 65 100.00 600 200 0.100 10 152.0 NTE Type Number Typical Temperature Coefficient vz %/°C Maximum Leakage Current IR @ VR µA Volts Note 2. Zener Voltage (Vz) is measured with junction in thermal equilibrium with 30°C stud temperature. Note 3.The zener impedance is derived from the 60 cycle A.C. voltage, 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 insure a sharp knee on the breakdown curve and to eliminate unstable units. .687 (17.4) Max .667 (16.9) Dia Max .375 (9.55) Max 1.288 (32.71) Max .450 (11.4) Max .453 (11.5) Max .140 (3.65) Dia Max .200 (5.08) Max 1/428 UNF2A