ChipFind - документация

Электронный компонент: NTE4980

Скачать:  PDF   ZIP
NTE4902 thru NTE4998
Surge Clamping, Transient Overvoltage Suppressor
Unidirectional
Description:
The NTE4900 series of silicon Transient Suppressors designed to protect voltage sensitive compo-
nents from high energy voltage transients. Transient over voltage suppressor devices have become
very important as a consequence of their high surge capability, extremely fast response time, and low
incremental surge resistance (Rs).
Application:
The NTE4900 series has a peak pulse power rating of 1500 watts for one millisecond can protect inte-
grated circuits, hybrids, CMOS, MOS, and other voltage sensitive components in a broad range of
applications such as telecommunications, power supplies, computers, automotive, industrial, and
medical equipment.
Absolute Maximum Ratings:
Peak Pulse Power Dissipation (T
A
= +25
C) 1500W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
t
clamping
(0 volts to BV Min)
<
1 x 1012 sec
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating and Storage Temperature
65
C to +175
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward Surge Rating 200 Amps,
1/20 Second at +25
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steady State Power Dissipation
5.0 W @ T1 = +25
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics:
Clamping Factor: 1.33 @ full rated power
1.20 @ 50% rated power
The clamping factor is defined as: The ratio of the actual V
C
(Clamping voltage) to the actual BV
(Breakdown Voltage) as measured on a specific device.
Maximum Ratings
NTE Type
Number
Diagram
Number
Maximum Reverse
Stand Off Voltage
(Volts)
Breakdown Voltage @ I
T
(Volts)
Clamping Voltage
@ I
pp
(1msec)
(Volts)
Reverse Leakage
Current @ V
R
(
A)
Peak Pulse
Current
(Amps)
Temperature
Coefficient
of BV%/
C
V
R
V
BR
V
C
I
R
I
pp
Min
Typ
Max
I
T
mA
4902
183
5.80
6.45
6.80
7.14
10.0
10.5
1000.0
143.00
0.057
4904
183
6.40
7.13
7.50
7.88
10.0
11.3
500.0
132.00
0.061
4906
183
7.02
7.79
8.20
8.61
10.0
12.1
200.0
124.00
0.065
4910
183
8.55
9.50
10.00
10.50
1.0
14.5
10.0
103.00
0.073
4914
183
10.20
11.40
12.00
12.60
1.0
16.7
5.0
90.00
0.078
4918
183
11.10
12.40
13.00
13.70
1.0
18.2
5.0
82.00
0.081
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 V
C
(Clamping voltage) to the actual BV
(Breakdown Voltage) as measured on a specific device.
Maximum Ratings
NTE Type
Number
Diagram
Number
Maximum Reverse
Stand Off Voltage
(Volts)
Breakdown Voltage @ I
T
(Volts)
Clamping Voltage
@ I
pp
(1msec)
(Volts)
Reverse Leakage
Current @ V
R
(
A)
Peak Pulse
Current
(Amps)
Temperature
Coefficient
of BV%/
C
V
R
V
BR
V
C
I
R
I
pp
Min
Typ
Max
I
T
mA
4920
183
12.80
14.30
15.00
15.80
1.0
21.2
5.0
71.00
0.084
4922
183
13.60
15.20
16.00
16.80
1.0
22.5
5.0
67.00
0.086
4926
183
15.30
17.10
18.00
18.90
1.0
25.2
5.0
59.50
0.088
4928
183
17.10
19.00
20.00
21.00
1.0
27.7
5.0
54.00
0.090
4932
183
20.50
22.80
24.00
25.20
1.0
33.2
5.0
45.00
0.094
4934
183
23.10
25.70
27.05
28.40
1.0
37.5
5.0
40.00
0.096
4936
183
25.60
28.50
30.00
31.50
1.0
41.4
5.0
36.00
0.097
4938
183
28.20
31.40
33.00
34.70
1.0
45.7
5.0
33.00
0.098
4940
183
30.80
34.20
36.00
37.80
1.0
49.9
5.0
30.00
0.099
4942
183
33.30
37.10
39.00
41.00
1.0
53.9
5.0
28.00
0.100
4944
183
36.80
40.90
43.00
45.20
1.0
59.3
5.0
25.30
0.101
4946
183
40.20
44.70
47.00
49.40
1.0
64.8
5.0
23.20
0.101
4950
183
43.60
48.50
51.05
53.60
1.0
70.1
5.0
21.40
0.102
4952
183
47.80
53.20
56.00
58.80
1.0
77.0
5.0
19.50
0.103
4954
183
53.00
58.90
62.00
65.10
1.0
85.0
5.0
17.70
0.104
4958
183
58.10
64.60
68.00
71.40
1.0
92.0
5.0
16.30
0.104
4960
183
64.10
71.30
75.00
78.80
1.0
103.0
5.0
14.60
0.105
4962
183
70.10
77.90
82.00
86.10
1.0
113.0
5.0
13.30
0.105
4964
183
77.80
86.50
91.00
95.50
1.0
125.0
5.0
12.00
0.106
4966
183
85.50
95.00
100.00
105.00
1.0
137.0
5.0
11.00
0.106
4968
183
94.00
105.00
110.00
116.00
1.0
152.0
5.0
9.90
0.107
4970
183
102.00
114.00
120.00
126.00
1.0
165.0
5.0
9.10
0.107
4972
183
111.00
124.00
130.00
137.00
1.0
179.0
5.0
8.40
0.107
4974
183
121.00
135.00
150.00
165.00
1.0
215.0
5.0
7.00
0.108
4976
183
136.00
152.00
160.00
168.00
1.0
219.0
5.0
6.80
0.108
4978
183
145.00
162.00
170.00
179.00
1.0
234.0
5.0
6.40
0.108
4980
183
154.00
171.00
180.00
189.00
1.0
246.0
5.0
6.10
0.108
4982
183
185.00
209.00
220.00
231.00
1.0
328.0
5.0
4.60
0.109
4984
183
214.00
237.00
250.00
263.00
1.0
344.0
5.0
5.00
0.109
4988
183
171.00
190.00
200.00
210.00
1.0
274.0
5.0
5.50
0.108
4990
183
256.00
285.00
300.00
315.00
1.0
414.0
5.0
3.58
0.110
4992
183
273.00
304.00
320.00
336.00
1.0
438.0
5.0
4.50
0.110
4994
183
300.00
333.00
350.00
368.00
1.0
482.0
5.0
3.08
0.110
4996
183
342.00
380.00
400.00
420.00
1.0
548.0
5.0
2.78
0.110
4998
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 standoff voltage
(V
WM
) and should be equal or greater than DC or continuous peak operating voltage.
Color Band Denotes Cathode
1.100
(27.94)
Min
.375
(9.52)
Max
.205 (5.21)
Dia Max
.042 (1.07) Dia Max