Electrical Characteristics (Cont’d): (TC = +30°C, unless otherwise specified)
Maximum Dynamic
Maximum
DC Zener
Current*
Impedance
(Note 3)
Nominal
Zener Voltage
V @ I
Zener
Test
Current
Typical
Temperature
Coefficient
Maximum
Leakage
Current
NTE Type
Number
(Note 1)
Z
@
zk
zk
(I
)
zm
z
zt
Z @ I
1mA (I )
zt
zt
(Note 4)
(Note 2)
(I )
zt
α
I @ V
R R
vz
Volts
mA
37
33
30
29
28
25
25
23
20
19
18
17
16
15
14
14
13
12
Ohms
18
Ohms
600
mA
%/°C
µA
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
Volts
51.7
NTE5215A
NTE5216A
NTE5217A
NTE5218A
NTE5219A
NTE5220A
NTE5221A
NTE5222A
NTE5223A
NTE5224A
NTE5225A
NTE5226A
NTE5227A
NTE5228A
NTE5229A
NTE5230A
NTE5231A
NTE5232A
68
75
120
110
100
93
85
80
75
72
67
62
58
54
50
48
46
45
43
40
.090
22
600
.090
.090
.090
.090
.090
.095
.095
.095
.095
.095
.095
.095
.095
.095
.095
.097
.100
56.0
82
25
700
62.2
87
30
750
65.7
91
35
800
69.2
100
105
110
120
130
140
150
160
170
175
180
190
200
40
900
76.0
45
1000
1100
1200
1300
1400
1500
1600
1675
1750
1850
1925
2000
76.0
55
83.6
75
91.2
100
125
175
200
225
250
260
280
300
98.8
100.0
114.0
121.6
128.3
135.0
136.8
144.4
152.0
* Stud Temperature = +75°C
Note 1. The NTE type 10W Zener Diodes listed have Anode (Standard Polarity) connected to stud.
Add suffix letter “K” to the device number for Cathode (Reverse Polarity) connected to stud
(i. e. NTE5174AK).
Note 2. The electrical characteristics are measured after allowing the device to stabilize for 90 se-
conds with +30°C base temperature.
Note 3. The zener impedance (Zzt) is derived from the 60Hz AC voltage, which results when an AC
current having an RMS value equal to 10% of the DC zener current (IZT or IZK) is superim-
posed on IZT or IZK. When making zener impedance measurements at the IZK test point, it
may be necessary to insert a 60Hz band pass filter between the diode and voltmeter to avoid
errors resulting from low level noise signals.
Note 4. These values of IZM may be exceeded in the case of individual diodes. The values shown
are calculated for the worst case which is a unit of ±5% tolerance at the high voltage and of
its tolerance range. Allowance has also been made for the rise in zener voltage above VZT,
which results from zener impedance and the increase in junction temperature as power dis-
sipation approaches 10 watts.