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
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +175°C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +175°C
DC Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50W
Derate Above 75°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5W/°C
Forward Voltage (I
F
= 10A), V
F
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5V
Note 1. Suffix “A” denotes anode to case polarity, “AK” denotes cathode to case.
Electrical Characteristics:
(T
C
= +30°C, unless otherwise specified)
Nominal
Zener Voltage
V
z
@ I
zt
(Note 2)
Volts
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
Zener
Test
Current
(I
zt
)
mA
3200
2900
2650
2450
2250
2125
2000
1850
1700
1500
Maximum Dynamic
Impedance
(Note 3)
Z
zt
@ I
zt
Ohms
0.16
0.16
0.12
0.12
0.12
0.13
0.14
0.20
0.30
0.40
Z
zk
@
1mA (I
zk
)
Ohms
400
500
600
650
900
950
1000
70
70
70
Maximum
DC Zener
Current
(I
zm
)
mA
11900
10650
9700
8900
8100
7700
7300
6600
5900
5200
Typical
Temperature
Coefficient
α
vz
%/°C
–0.046
–0.033
–0.015
±0.010
+0.030
+0.040
+0.049
0.040
0.045
0.048
Maximum
Leakage
Current
I
R
@ V
R
µA
Volts
150
150
100
20
29
20
20
300
125
50
0.5
0.5
1.0
1.0
1.0
1.5
2.0
4.5
5.0
5.4
NTE Type
Number
NTE5240A
NTE5241A
NTE5242A
NTE5243A
NTE5244A
NTE5245A
NTE5246A
NTE5247A
NTE5248A
NTE5249A
Electrical Characteristics (Cont’d):
(T
C
= +30°C, unless otherwise specified)
Nominal
Zener Voltage
V
z
@ I
zt
(Note 2)
Volts
8.7
9.1
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
18.0
19.0
20.0
22.0
24.0
25.0
27.0
28.0
30.0
33.0
36.0
39.0
43.0
45.0
47.0
50.0
51.0
52.0
56.0
60.0
62.0
68.0
Zener
Test
Current
(I
zt
)
mA
1435
1370
1200
1100
1000
960
890
835
780
740
700
660
630
570
520
500
460
440
420
380
350
320
290
280
270
250
245
240
220
210
200
180
Maximum Dynamic
Impedance
(Note 3)
Z
zt
@ I
zt
Ohms
0.45
0.50
0.60
0.80
1.00
1.10
1.20
1.40
1.60
1.80
2.00
2.20
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.20
3.50
4.00
4.50
4.50
5.00
5.00
5.20
5.50
6.00
6.50
7.00
8.00
Z
zk
@
1mA (I
zk
)
Ohms
70
70
80
80
80
80
80
80
80
80
80
80
80
80
80
90
90
90
90
90
90
90
90
100
100
100
100
100
110
115
120
140
Maximum
DC Zener
Current
(I
zm
)
mA
5000
4800
4300
3900
3800
3300
3000
2825
2650
2500
2300
2200
2100
1900
1750
1550
1500
1450
1400
1300
1150
1050
975
930
880
830
810
790
740
700
660
600
Typical
Temperature
Coefficient
α
vz
%/°C
0.049
0.050
0.055
0.060
0.065
0.065
0.070
0.070
0.070
0.075
0.075
0.075
0.075
0.080
0.080
0.080
0.085
0.085
0.085
0.085
0.085
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
0.090
Maximum
Leakage
Current
I
R
@ V
R
µA
Volts
37
25
25
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
5.7
6.1
6.7
8.4
9.1
9.9
11.4
11.8
12.2
13.0
13.7
13.7
15.2
16.7
18.2
18.2
20.6
21.7
22.8
25.1
27.4
29.7
32.7
32.7
35.8
38.8
38.8
42.6
42.6
44.8
47.1
51.7
NTE Type
Number
NTE5250A
NTE5251A
NTE5252A
NTE5253A
NTE5254A
NTE5255A
NTE5256A
NTE5257A
NTE5258A
NTE5259A
NTE5260A
NTE5261A
NTE5262A
NTE5263A
NTE5264A
NTE5265A
NTE5266A
NTE5267A
NTE5268A
NTE5269A
NTE5270A
NTE5271A
NTE5272A
NTE5273A
NTE5274A
NTE5275A
NTE5276A
NTE5277A
NTE5278A
NTE5279A
NTE5280A
NTE5281A
Electrical Characteristics (Cont’d):
(T
C
= +30°C, unless otherwise specified)
Nominal
Zener Voltage
V
z
@ I
zt
(Note 2)
Volts
75.0
82.0
91.0
100.0
105.0
110.0
120.0
130.0
140.0
150.0
160.0
175.0
180.0
190.0
200.0
Zener
Test
Current
(I
zt
)
mA
170
150
140
120
120
110
100
95
90
85
80
70
68
66
65
Maximum Dynamic
Impedance
(Note 3)
Z
zt
@ I
zt
Ohms
9.00
11.00
15.00
20.00
25.00
30.00
40.00
50.00
60.00
75.00
80.00
85.00
90.00
95.00
100.00
Z
zk
@
1mA (I
zk
)
Ohms
150
160
180
200
210
220
240
275
325
400
450
500
525
561
600
Maximum
DC Zener
Current
(I
zm
)
mA
540
490
420
400
380
365
335
310
290
270
250
230
220
210
200
Typical
Temperature
Coefficient
α
vz
%/°C
0.090
0.090
0.090
0.090
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.095
0.098
0.100
Maximum
Leakage
Current
I
R
@ V
R
µA
Volts
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
56.0
62.2
69.2
76.0
83.0
83.0
91.2
99.8
114.0
114.0
121.6
121.6
136.8
144.4
152.0
NTE Type
Number
NTE5282A
NTE5283A
NTE5284A
NTE5285A
NTE5286A
NTE5287A
NTE5288A
NTE5289A
NTE5290A
NTE5291A
NTE5292A
NTE5293A
NTE5294A
NTE5295A
NTE5296A
Note 2. Zener Voltage (V
z
) 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 (I
ZT
or I
ZK
) is superim-
posed on I
ZT
or I
ZK
. 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
1/4–28 UNF–2A
