BL
FEATURES
GALAXY ELECTRICAL
P4KE6.8 --- P4KE440CA
BREAKDOWN VOLTAGE: 6.8 --- 440 V
PEAK PULSE POWER: 400 W
TRANSIENT VOLTAGE SUPPRESSOR
Plastic package
has
Underwriters Laboratory
Flammability Classification 94V-0
Glass passivated junction
400W peak pulse power capability with a 10/1000μs
waveform, repetition rate (duty cycle): 0.01%
Excellent clamping capability
Fast response time: typically less than 1.0ps from 0 Volts to
V
(BR)
for uni-directional and 5.0ns for bi-directional types
Devices with V
(BR)
10V I
D
are typically I
D
less than 1.0
μA
High temperature soldering guaranteed:265 / 10 seconds,
0.375"(9.5mm) lead length, 5
lbs.
(2.3kg) tension
DO - 41
MECHANICAL DATA
Case:JEDEC DO-41, molded plastic body over
passivated junction
Terminals: Axial leads, solderable per MIL-STD-750,
method 2026
Polarity: Foruni-directional types the color band denotes
the cathode, which is postitive with respect to the
anode under normal TVS operation
Weight: 0.012 ounces, 0.34 grams
Mounting position: Any
DEVICES FOR BIDIRECTIONAL APPLICATIONS
For bi-directional use C or CA suffix for types P4KE 7.5 thru types P4KE 440 (e.g. P4KE 7.5CA, P4KE 440CA).
Electrical characteristics apply in both directions.
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25
ambient temperature unless otherwise specified.
SYMBOL
Peak Power Dissipation with a 10/1000μs waveform (NOTE 1, FIG.1)
Peak Pulse Current with a 10/1000μs waveform (NOTE 1)
Steady State Power Dissipation at T
L
=75
fffffLead
Lengths 0.375"(9.5mm) (NOTE 2)
Peak Forward Surge Current, 8.3ms Single half
ffffSine-Wave
Superimposed on Rated Load (JEDEC Method) (NOTE 3)
Maximum Instantaneous Forward Voltage at 25A for unidirectional only (NOTE 4)
Operating Junction and Storage Temperature Range
VALUE
Minimum 400
See
table
1
1.0
40.0
3.5/5.0
-50---+175
UNIT
W
A
W
A
V
P
PPM
I
PPM
P
M(AV)
I
FSM
V
F
T
J
, T
STG
NOTES: (1) Non-repetitive current pules, per Fig. 3 and derated above T
A
=25 per Fig. 2
(2) Mounted on copper pad area of 1.6" x 1.6"(40 x40mm
2
) per Fig. 5
(3) Measured of 8.3ms single half sine-wave or equare wave, duty cycle=4 pulses per minute maximum
(4) V
F
=3.5 Volt max. for devices of V
(BR)
220V, and V
F
=5.0 Volt max. for devices of V
(BR)
>220V
www.galaxycn.com
Document Number 0285001
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
PEAK PULSE POWER (P
PP
) OR CURRENT
P4KE6.8 -- P4KE440CA
FIG.2 -- PULSE DERATING CURVE
DERATING IN PERCENTAGE, %
100
FIG.1 -- PEAK PULSE POWER RATING CURVE
P
PPM
, PEAK PULSE POWER, KW
100
NON-REPETITIVE
PULSE WAVEFORM
SHOWN if FIG.3
T
A
=25
℃
10
75
50
1.0
25
0.1
0.1µs
1.0µs
10µs
100µs
1ms
10ms
(I
PPM
)
tol, PULSE WIDTH, SEC.
0
0
25
50
75
100
125
150
175
200
FIG.3
-- PULSE WAVEFORM
150
TA, AMBIENT TEMPERATURE.
℃
I
PPM
, PEAK PULSE CURRENT, %
tr=10µ
s
PEAK VALUE
I
PPM
PULES WIDTH (td)
is DEFINDE as the
POINT WHERE the
PEAK CURRENT
DECAYS to 50% of
I
PPM
FIG.4 -- TYPICAL JUNCTION CAPACITANCE
H HHHHHHHH HUNIDIRECTIONAL
100
100.000
HALF VALUE - I
PPM
2
50
10/1000µ
s
WAVEFORM as
DEFINDE by R.E.A.
C
J
, JUNCTION CAPACITANCE, Pf
TJ=25
℃
f=1.0MH
Z
Vsig=50mVp-p
10.000
td
0
MEASURED at
ZEROBIAS
0
1.0
t, TIME, ms
2.0
3.0
4.0
FIG.5 -- STEADY STATE POWER DERATING CURVE
PM(AV), STRADY STATE POWER
1.00
1000
L=0.375"(9.5mm)
LEAD LENGTHS
DISSIPATION, W
0.75
60 H
Z
RESISTIVEOR
INDUCTIVE LOAD
MEASURED at
STAND-OFF
VOLTAGE, V
WM
10
1.0
10
100
200
0.50
0.25
1.6 x 1.6 x .040"
(40 x 40 x 1mm.)
COPPER HEAT SINKS
V
(BR)
, BREAKDOWN VOLTAGE, V
0
0
25
50
75
100
125
150
175
200
T
L
, LEAD TEMPERATURE,
℃
I
D
, INSTANTANEOUS REVERSE
I
FSM
, PEAK FORWARD SURGE
FIG.7 -- TYPICAL REVERSE LEAKAGE
JJJJJJJJJJJJJJJJJJCHARACTERISTICS
100
FIG.6 -- MAXIMUN NON-REPETITIVE FORWARD
HHHH HSURGE
CURRENT UNIDIRECTIONAL ONLY
50
LEAKAGE CURRENT,
mA
10
MEASURED ATDEVICES
STAND-OFF VOLTAGE,
VWM
CURRENT, A
40
30
T
J
=T
J
max.
8.3ms SINGLE HALF SINE-MAVE
(JEDEC METHOD)
1
T
A
=25
℃
20
0.1
10
0.01
0
100
200
300
400
500
0
1
10
100
V
(BR)
, BREAKDOWN VOLTAGE, V
NUMBER OF CYCLES AT 60 Hz
www.galaxycn.com
Document Number 0285001
BL
GALAXY ELECTRICAL
4.
TI Technology Forum
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