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P4KE68A-B Datasheet(PDF) 1 Page - Littelfuse

Part # P4KE68A-B
Description  Transient Voltage Suppression Diodes
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Manufacturer  LITTELFUSE [Littelfuse]
Direct Link  http://www.littelfuse.com
Logo LITTELFUSE - Littelfuse

P4KE68A-B Datasheet(HTML) 1 Page - Littelfuse

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©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Transient Voltage Suppression Diodes
Revision: January 09, 2009
Axial Leaded – 400W > P4KE series
P4KE Series
Please refer to http://www.Littelfuse.com/series/P4KE.html for current information.
P4KE Series
TVS devices are ideal for the protection of I/O interfaces,
V
CC bus and other vulnerable circuits used in telecom,
computer, industrial and consumer electronic applications.
Applications
Features
The P4KE Series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Description
Parameter
Symbol
Value
Unit
Peak Pulse Power Dissipation by
10x1000μs test waveform (Fig.1)
(Note 1)
P
PPM
400
W
Steady State Power Dissipation on
inifinite heat sink at T
L=75ºC (Fig. 5)
P
D
1.5
W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
only (Note 2)
I
FSM
40
A
Maximum Instantaneous Forward
Voltage at 25A for Unidirectional
only (Note 3)
V
F
3.5/5.0
V
Operating Junction and Storage
Temperature Range
T
J, TSTG
-55 to 175
°C
Typical Thermal Resistance Junction
to Lead
R
uJL
60
°C/W
Typical Thermal Resistance Junction
to Ambient
R
uJA
100
°C/W
Notes:
1. Non-repetitive current pulse , per Fig. 3 and derated above T
A = 25
O
C per Fig. 2.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
3. V
F<3.5V for devices of VBR _
<
200V and V
F<5.0V for devices of VBR _
>
201V.
Maximum Ratings and Thermal Characteristics
(T
A=25
O
C unless otherwise noted)
Agency Approvals
temperature coefficient
ΔV
BR = 0.1% x VBR@25°C x ΔT
junction in DO-41 Package
capability at 10×1000μs
waveform, repetition rate
(duty cycles):0.01%
typically less than 1.0ps
from 0 Volts to BV min
capability
resistance
R less than 1μA
above 13V
soldering guaranteed:
260°C/40 seconds /
0.375”,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
Underwriters Laboratory
Flammability classification
94V-O
AGENCY
AGENCY FILE NUMBER
E230531
RoHS


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