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參數(shù)資料
| 型號： | NTE4978 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Surge Clamping, Transient Overvoltage Suppressor Unidirectional |
| 中文描述： | 浪涌夾緊，單向暫態(tài)過電壓抑制器 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 26K |
| 代理商： | NTE4978 |
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)
t
clamping
(0 volts to BV Min)
Operating and Storage Temperature
Forward Surge Rating 200 Amps,
Steady State Power Dissipation
1500W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
<
1 x 10–12 sec
–65
°
C to +175
°
C
1/20 Second at +25
°
C
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)
V
R
Breakdown Voltage @ I
T
(Volts)
V
BR
Typ
6.80
7.50
8.20
10.00
12.00
13.00
Clamping Voltage
@ I
pp
(1msec)
(Volts)
V
C
Reverse Leakage
Current @ V
R
(
μ
A)
I
R
Peak Pulse
Current
(Amps)
I
pp
Temperature
Coefficient
of BV%/
°
C
Min
6.45
7.13
7.79
9.50
11.40
12.40
Max
7.14
7.88
8.61
10.50
12.60
13.70
I
T
mA
10.0
10.0
10.0
1.0
1.0
1.0
4902
4904
4906
4910
4914
4918
183
183
183
183
183
183
5.80
6.40
7.02
8.55
10.20
11.10
10.5
11.3
12.1
14.5
16.7
18.2
1000.0
500.0
200.0
10.0
143.00
132.00
124.00
103.00
90.00
82.00
0.057
0.061
0.065
0.073
0.078
0.081
5.0
5.0
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