NTE4903 查看數據表（PDF） - Unspecified
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NTE4903 Datasheet PDF : 2 Pages
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Electrical Characteristics (Cont’d):
Clamping Factor: 1.33 @ full rated power
1.20 @ 50% rated power
The clamping factor is defined as: The ratio of the actual VC (Clamping Voltage) to the actual BV
(Breakdown Voltage) as measured on a specific device.
Maximum Ratings
NTE Type Diagram
Number Number
Maximum Reverse
Stand Off Voltage
(Volts)
Breakdown Voltage @ IT
(Volts)
Clamping Voltage
@ Ipp (1msec)
(Volts)
Reverse Leakage
Current @ VR
(µA)
Peak Pulse
Current
(Amps)
Temperature
Coefficient
of BV%/°C
4919 183
VR
11.10
Min
12.40
VBR
Typ
Max
13.00 13.70
IT mA
1.0
VC
18.2
IR
Ipp
5.0
82.00
0.081
4921 183
12.80
14.30 15.00 15.80 1.0
21.1
5.0
71.00
0.084
4923 183
13.60
15.20 16.00 16.80 1.0
22.5
5.0
67.00
0.086
4927 183
15.30
17.10 18.00 18.90 1.0
25.2
5.0
59.50
0.088
4929 183
17.10
19.00 20.00 21.00 1.0
27.7
5.0
54.00
0.090
4933 183
20.50
22.80 24.00 25.20 1.0
33.2
5.0
45.00
0.094
4935 183
23.10
25.70 27.05 28.40 1.0
37.5
5.0
40.00
0.096
4937 183
25.60
28.50 30.00 31.50 1.0
36.0
5.0
41.40
0.097
4939 183
28.20
31.40 33.00 34.70 1.0
45.7
5.0
33.00
0.098
4941 183
30.80
34.20 36.00 37.80 1.0
49.9
5.0
30.00
0.099
4943 183
33.30
37.10 39.00 41.00 1.0
53.9
5.0
28.00
0.100
4945 183
36.80
40.90 43.00 45.20 1.0
59.3
5.0
25.30
0.101
4947 183
40.20
44.70 47.00 49.40 1.0
64.8
5.0
23.30
0.101
4951 183
43.60
48.50 51.05 53.60 1.0
70.1
5.0
21.40
0.102
4953 183
47.80
53.20 56.00 58.80 1.0
77.0
5.0
19.50
0.103
4955 183
53.00
58.90 62.00 65.10 1.0
85.0
5.0
17.70
0.104
4959 183
58.10
64.60 68.00 71.40 1.0
92.0
5.0
16.30
0.104
4961 183
64.10
71.30 75.00 78.80 1.0
103.0
5.0
14.60
0.105
4963 183
70.10
77.90 82.00 86.10 1.0
113.0
5.0
13.30
0.105
4965 183
77.80
86.50 91.00 95.50 1.0
125.0
5.0
12.00
0.106
4967 183
85.50
95.00 100.00 105.00 1.0
137.0
5.0
11.00
0.106
4969 183
94.00
105.00 110.00 116.00 1.0
152.0
5.0
9.90
0.107
4971 183
102.00
114.00 120.00 126.00 1.0
165.0
5.0
9.10
0.107
4973 183
111.00
124.00 130.00 137.00 1.0
179.0
5.0
8.40
0.107
4975 183
128.00
143.00 150.00 158.00 1.0
207.0
5.0
7.20
0.108
4977 183
136.00
152.00 160.00 168.00 1.0
219.0
5.0
6.80
0.108
4979 183
145.00
162.00 170.00 179.00 1.0
234.0
5.0
6.40
0.108
4981 183
154.00
171.00 180.00 189.00 1.0
246.0
5.0
6.10
0.108
4983 183
185.00
209.00 220.00 231.00 1.0
328.0
5.0
4.60
0.109
4985 183
214.00
237.00 250.00 263.00 1.0
344.0
5.0
5.00
0.109
4989 183
171.00
190.00 200.00 210.00 1.0
274.0
5.0
5.50
0.108
4991 183
256.00
285.00 300.00 315.00 1.0
414.0
5.0
3.58
0.110
4993 183
273.00
304.00 320.00 336.00 1.0
438.0
5.0
4.50
0.110
4995 183
300.00
333.00 350.00 368.00 1.0
482.0
4.0
3.08
0.110
4997 183
342.00
380.00 400.00 420.00 1.0
548.0
4.0
2.78
0.110
4999 183
376.00
418.00 440.00 462.00 1.0
603.0
5.0
3.50
0.110
Note 1. Normal selection of a zener transient over voltage suppressor is by rated stand–off voltage
(VWM) and should be equal or greater than DC or continuous peak operating voltage.
1.100
(27.94)
Min
.375
(9.52)
Max
.042 (1.07) Dia Max
.205 (5.21)
Dia Max
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