P4KE SERIES
GLASS PASSIVATED
UNIDIRECTIONAL AND BIDIRECTIONAL
TRANSIENT VOLTAGE SUPPRESSORS
FEATURES
●
low leakage
●
Uni and bidirectional unit
●
Excellent clamping capability
●
Plastic material has UL recognition 94V-0
●
Fast response time
.
REVERSE VOLTAGE
- 6.8
to
440Volts
POWER DISSIPATION
- 400
Watts
DO- 41
1.0(25.4)
MIN.
.034(0.9)
DIA
.028(0.7)
MECHANICAL DATA
●
Case : Molded Plastic
●
Marking : Unidirectional -type number and cathode band
.205(5.2)
MAX
.107(2.7)
DIA
.080(2.0)
1.0(25.4)
MIN.
Bidirectional-type number only
●
Weight : 0.34 grams
Dimensions in inches and(millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating at 25℃ ambient temperature unless otherwise specified.
Single phase, half wave ,60Hz, resistive or inductive load.
For capacitive load, derate current by 20%
CHARACTERISTICS
Peak Power Dissipation at T
A
=25℃
TP=1ms (NOTE1)
Peak Forward Surge Current
8.3ms Single Half Sine-Wave
Super Imposed on Rated Load (JEDEC Method)
Steady State Power Dissipation at T
L
=75℃
Lead Lengths 0.375"(9.5mm),See Fig. 4
Maximum Instantaneous Forward Voltage
at 25A for Unidirectional Devices Only (NOTE2)
Operating Temperature Range
Storage Temperature Range
SYMBOL
P
PK
VALUE
Minimum 400
UNIT
WATTS
I
FSM
40
AMPS
P
M(AV)
V
F
T
J
T
STG
1.0
See Note 3
-55 to + 150
-55 to + 175
WATTS
VOLTS
℃
℃
NOTES:1. Non-repetitive current pulse ,per Fig. 5 and derated above T
A
=25℃ per Fig. 1 .
2. 8.3ms single half-wave duty cycle=4 pulses per minutes maximum (uni-directional units only).
3. V
F
=3.5V on P4KE6.8 thru P4KE200A devices and V
F
=5.0V on P4KE220A thru P4KE400A devices.
~ 195 ~
RATING AND CHARACTERTIC CURVES
P4KE SERIES
FIG.1-PULSE DERATING CURVE
PEAK PULSE DERATING IN % OF
PEAK POWER OR CURRENT
100
10*1000 WAVEFORM
AS DEFINED BY R.E.A
FIG.2-TYPICAL JUNCTION CAPACITANCE
10000
CAPACITANCE
，（
P
F
）
75
1000
T
J
=25
℃
MEASURED AT
STAND-OFF VOLTAGE
50
25
0
0
25
50
75
100
125 150
175 200
100
10
1
4
10
100
1000
T
A
AMBIENT TEMPERATURE,℃
REVERSE VOLTAGE,VOLTS
100
T
A
=25
℃
,
NON-REPETIVE PULSE WAVE FORM
P
M
(
AV
), STEADY STATE POWER DISSIPATION (W)
FIG.3-PULSE RATING CURVE
FIG.4-STEADY STATE POWER
DERATING CURVE
10
P
P
, PEAK POWER (
K
w)
8
6
10
SHOWN IN FIG.5
4
2
60Hz RESISTIVE OR
INDUCTIVE LOAD
1.0
0.1
0.1us
1.0us
10us
100us
1.0ms
10ms
0
25
50
75
100
125
150
175
200
TP, PULSE WIDTH
TL, LEAD TEMPERATURE
FIG.5 -PULSE WAVEFORM
IP
，
PEAK PULSE CURRENT
， （
%
）
T
R
=10us
100
Peak value(I
RSM
)
Half value =
I
RSM
2
Pulse with (Tp) is defined
as that point where the
peak current decays to
50% of I
RSM
50
T
J
=
25
℃
10*1000waveform as
defined by R.E.A
TP
0
0
1.0
2.0
T, TIME (ms)
3.0
4.0
~ 196 ~
Embedded System
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