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NTE4900 Datasheet(PDF) 1 Page - NTE Electronics

Part No. NTE4900
Description  Surge Clamping, Overvoltage Transient Suppressor, Unidirectional
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Manufacturer  NTE [NTE Electronics]
Direct Link  http://www.nteinc.com
Logo NTE - NTE Electronics

NTE4900 Datasheet(HTML) 1 Page - NTE Electronics

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NTE4900
Surge Clamping, Overvoltage Transient Suppressor,
Unidirectional
Description:
The NTE4900 is a zener overvoltage transient suppressor in an axial lead type package designed
to protect voltage sensitive components from high voltage, high energy transients. This device has
excellent clamping capability, high surge capability, low zener impedance, and fast response time
making the NTE4900 ideal for use in communication systems, numerical controls, process controls,
medical equipment, business machines, power supplies and many other industrial/consumer ap-
plications, to protect CMOS, MOS and Bipolar integrated circuits.
Features:
D Peak Power: 1500W @ 1.0ms
D Maximum Clamp Voltage @ Peak Pulse Current
D Low Leakage: < 5.0µA Above 10V
Absolute Maximum Ratings:
Peak Power Dissipation (Non–Repetitive Current Pulse, TL ≤ +25°C), PPK
1500W
. . . . . . . . . . . . . .
Steady State Power Dissipation (TL ≤ +75°C, Lead length = 3/8”), PD
5W
. . . . . . . . . . . . . . . . . . . . .
Derate Above TL = +75°C
50mW/
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward Curent Current (TA = +25°C, Note 1), IFSM
200A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Junction Temperature Range, TJ
–65
° to +175°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, Tstg
–65
° to +175°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering, 1/16” from case, 10sec), TL
+230
°C
. . . . . . . . . . . . . . . . . . . . .
Note 1. 1/2 Square Wave (or equivalent), PW = 8.3ms, Duty Cycle = 4 Pulses per minute maximum.
Electrical Characteristics: (TA = +25°C, VF = 3.5V Max, IF(Note 1) = 100A unless otherwise
specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Breakdown Voltage
VBR
IT = 1mA
6
V
Reverse Stand–Off Voltage
VRWM
Note 2
5
V
Reverse Leakage Current
IR
VRWM = 5V
300
µA
Reverse Voltage (Clamping Voltage
VRSM
IRSM = 120A
8.5
V
Clamping Voltage
VC
IPP = 30A
7.6
V
IPP = 60A
8.0
V
Note 1. 1/2 Square Wave (or equivalent), PW = 8.3ms, Duty Cycle = 4 Pulses per minute maximum.
Note 2. A Transient Suppressor is normally selected according to the maximum reverse stand–off
voltage (VRWM), which should be equal to or greater than the DC or continuous peak operat-
ing voltage level.


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