
NTE5240A thru 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 thru NTE5296AK)
Maximum Ratings:
Operating Junction Temperature Range, T
Storage Temperature Range, T
DC Power Dissipation, P
D
stg
Derate Above 75°C 0.5W/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward Voltage (IF = 10A), V
F
Note 1. Suffix “A” denotes anode to case polarity, “AK” denotes cathode to case.
Electrical Characteristics: (TC = +30°C, unless otherwise specified)
NTE Type
Number
Nominal
ener Voltage
Vz @ I
zt
(Note 2)
Volts mA Ohms Ohms mA %/°C µA Volts
Zener
Current
(Izt)
opr
Maximum Dynamic
Impedance
(Note 3)
Zzk @
Zzt @ I
zt
1mA (Izk)
Maximum
ener
Current
(Izm)
Typical
emperature
Coefficient
α
vz
−65° to +175°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
−65° to +175°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
50W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum
age
Current
IR @ V
R
NTE5240A 3.9 3200 0.16 400 11900 −0.046 150 0.5
NTE5241A 4.3 2900 0.16 500 10650 −0.033 150 0.5
NTE5242A 4.7 2650 0.12 600 9700 −0.015 100 1.0
NTE5243A 5.1 2450 0.12 650 8900 ±0.010 20 1.0
NTE5244A 5.6 2250 0.12 900 8100 +0.030 29 1.0
NTE5245A 6.0 2125 0.13 950 7700 +0.040 20 1.5
NTE5246A 6.2 2000 0.14 1000 7300 +0.049 20 2.0
NTE5247A 6.8 1850 0.20 70 6600 0.040 300 4.5
NTE5248A 7.5 1700 0.30 70 5900 0.045 125 5.0
NTE5249A 8.2 1500 0.40 70 5200 0.048 50 5.4

Electrical Characteristics (Cont’d): (TC = +30°C, unless otherwise specified)
Maximum Dynamic
Zzt @ I
Impedance
(Note 3)
Zzk @
1mA (I
zt
zk
)
Maximum
ener
Current
(Izm)
Typical
emperature
Coefficient
α
vz
Maximum
age
Current
IR @ V
Nominal
Zener
ener Voltage
NTE Type
Number
Vz @ I
(Note 2)
zt
Current
(Izt)
Volts mA Ohms Ohms mA %/°C µA Volts
NTE5250A 8.7 1435 0.45 70 5000 0.049 37 5.7
NTE5251A 9.1 1370 0.50 70 4800 0.050 25 6.1
NTE5252A 10.0 1200 0.60 80 4300 0.055 25 6.7
NTE5253A 11.0 1100 0.80 80 3900 0.060 10 8.4
NTE5254A 12.0 1000 1.00 80 3800 0.065 10 9.1
NTE5255A 13.0 960 1.10 80 3300 0.065 10 9.9
NTE5256A 14.0 890 1.20 80 3000 0.070 10 11.4
NTE5257A 15.0 835 1.40 80 2825 0.070 10 11.8
NTE5258A 16.0 780 1.60 80 2650 0.070 10 12.2
NTE5259A 17.0 740 1.80 80 2500 0.075 10 13.0
R
NTE5260A 18.0 700 2.00 80 2300 0.075 10 13.7
NTE5261A 19.0 660 2.20 80 2200 0.075 10 13.7
NTE5262A 20.0 630 2.40 80 2100 0.075 10 15.2
NTE5263A 22.0 570 2.50 80 1900 0.080 10 16.7
NTE5264A 24.0 520 2.60 80 1750 0.080 10 18.2
NTE5265A 25.0 500 2.70 90 1550 0.080 10 18.2
NTE5266A 27.0 460 2.80 90 1500 0.085 10 20.6
NTE5267A 28.0 440 2.90 90 1450 0.085 10 21.7
NTE5268A 30.0 420 3.00 90 1400 0.085 10 22.8
NTE5269A 33.0 380 3.20 90 1300 0.085 10 25.1
NTE5270A 36.0 350 3.50 90 1150 0.085 10 27.4
NTE5271A 39.0 320 4.00 90 1050 0.090 10 29.7
NTE5272A 43.0 290 4.50 90 975 0.090 10 32.7
NTE5273A 45.0 280 4.50 100 930 0.090 10 32.7
NTE5274A 47.0 270 5.00 100 880 0.090 10 35.8
NTE5275A 50.0 250 5.00 100 830 0.090 10 38.8
NTE5276A 51.0 245 5.20 100 810 0.090 10 38.8
NTE5277A 52.0 240 5.50 100 790 0.090 10 42.6
NTE5278A 56.0 220 6.00 110 740 0.090 10 42.6
NTE5279A 60.0 210 6.50 115 700 0.090 10 44.8
NTE5280A 62.0 200 7.00 120 660 0.090 10 47.1
NTE5281A 68.0 180 8.00 140 600 0.090 10 51.7