NTE NTE4950, NTE4934, NTE4936, NTE4970, NTE4920 Datasheet
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NTE4902 thru NTE4998
Surge Clamping, Transient Overvoltage Suppressor
Unidirectional
Description:
The NTE4900 series of silicon Transient Suppressors designed to protect voltage sensitive components 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 integrated 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: |
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Peak Pulse Power Dissipation (TA = +25° C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . . . . . . . . . . 1500W |
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tclamping (0 volts to BV Min) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . . < 1 x 10–12 sec |
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Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
. . –65° C to +175° C |
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Forward Surge Rating 200 Amps, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1/20 Second at +25° C |
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Steady State Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . |
5.0 W @ T1 = +25° C |
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Electrical Characteristics: |
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Clamping Factor: 1.33 |
@ full rated power |
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1.20 |
@ 50% rated power |
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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.
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Maximum Ratings |
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Maximum Reverse |
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Clamping Voltage |
Reverse Leakage |
Peak Pulse |
Temperature |
NTE Type |
Diagram |
Stand Off Voltage |
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Breakdown Voltage @ I |
T |
@ Ipp (1msec) |
Current @ VR |
Current |
Coefficient |
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Number |
Number |
(Volts) |
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(Volts) |
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(Volts) |
( A) |
(Amps) |
of BV%/° C |
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VR |
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VBR |
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VC |
IR |
Ipp |
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Min |
Typ |
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Max |
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IT mA |
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4902 |
183 |
5.80 |
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10.5 |
1000.0 |
143.00 |
0.057 |
6.45 |
6.80 |
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7.14 |
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10.0 |
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4904 |
183 |
6.40 |
7.13 |
7.50 |
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7.88 |
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10.0 |
11.3 |
500.0 |
132.00 |
0.061 |
4906 |
183 |
7.02 |
7.79 |
8.20 |
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8.61 |
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10.0 |
12.1 |
200.0 |
124.00 |
0.065 |
4910 |
183 |
8.55 |
9.50 |
10.00 |
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10.50 |
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1.0 |
14.5 |
10.0 |
103.00 |
0.073 |
4914 |
183 |
10.20 |
11.40 |
12.00 |
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12.60 |
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1.0 |
16.7 |
5.0 |
90.00 |
0.078 |
4918 |
183 |
11.10 |
12.40 |
13.00 |
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13.70 |
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1.0 |
18.2 |
5.0 |
82.00 |
0.081 |
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