P4KE6.8 - P4KE400CA
TRANSIENT VOLTAGE SUPPRESSOR
Features
·
·
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·
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UL Recognized
400W Peak Pulse Power Dissipation
Voltage Range 6.8V - 400V
Constructed with Glass Passivated Die
Uni and Bidirectional Versions Available
Excellent Clamping Capability
Fast Response Time
A
B
A
D
C
DO-41
Mechanical Data
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Case: Transfer Molded Epoxy
Leads: Plated Leads, Solderable per
MIL-STD-202, Method 208
Marking: Unidirectional - Type Number and
Cathode Band
Marking: Bidirectional - Type Number Only
Approx. Weight: 0.4 grams
Mounting Position: Any
Dim
A
B
C
D
Min
25.40
4.06
0.71
2.00
Max
—
5.21
0.884
2.72
All Dimensions in mm
Maximum Ratings
@ T
A
= 25°C unless otherwise specified
Characteristic
Peak Power Dissipation, T
p
= 1.0 ms (Non repetitive current pulse,
per Figure 1 and derated above T
A
= 25°C per Figure 4)
Steady State Power Dissipation at T
L
= 75°C
Lead Lengths 9.5 mm per Figure 5 (Mounted on Copper Land Area of 40mm
2
)
Peak Forward Surge Current, 8.3 ms Single Half Sine Wave, Superimposed
on Rated Load (JEDEC Method) Duty Cycle = 4 pulses per minute maximum)
Forward Voltage @ I
F
= 20A
300µs Square Wave Pulse, Unidirectional Only
Operating and Storage Temperature Range
V
BR
£
200V
V
BR
> 200V
Symbol
P
pk
P
d
I
FSM
V
F
T
j
, T
STG
Value
400
1.0
40
3.5
6.5
-55 to +175
Unit
W
W
A
V
°C
DS21508 Rev. B-4
1 of 4
P4KE6.8-P4KE400CA
100,000
I
P
, PEAK PULSE CURRENT (%
pp
)
C
j
, CAPACITANCE (pF)
100
t
r
= 10ms
Peak Value I
pp
T
j
= 25°C
f = 1.0 MHz
V
sig
= 50mV p-p
10,000
Measured at
Zero Bias
Half Value I
pp
/2
50
1000
Measured at
Stand-off Voltage
t
p
0
10 X 1000 Waveform
as defined by R.E.A.
100
0
1
2
3
1
10
100
1000
t, TIME (ms)
Fig. 1 Pulse Waveform
V
RWM
, REVERSE STANDOFF VOLTAGE (V)
Fig. 2 Typical Junction Capacitance
Non-Repetitive
Pulse Waveform
Shown in Fig. 1
T
A
= 25°C
100
P
P
, PEAK PULSE POWER (kW)
10
1.0
0.1
0.1
1.0
10
100
1000
10000
T
p
, PULSE WIDTH (µs)
Fig. 3 Pulse Rating Curve
PK PULSE DERATING (% PK PWR OR CURRENT)
P
d
, STEADY STATE POWER DISSIPATION (W)
100
1.0
75
0.75
Single Phase
Half-Wave 60Hz
Resistive or
Inductive Load
50
0.5
L = 9.5 mm
25
10 X 1000 Waveform
as defined by REA
0.25
40 x 40 x 1 mm Cu
0
0
25
50
75
100
125
150
175
200
T
L
, LEAD TEMPERATURE (°C)
Fig. 5, Steady State Power Derating
0
0
25
50
75
100 125 150 175
200
T
A
, AMBIENT TEMPERATURE (°C)
Fig. 4 Pulse Derating Curve
Notes:
1. Suffix ‘C’ denotes bidirectional device. Suffix ‘A’ denotes 5% tolerance device, no suffix denotes 10% tolerance device.
2. For bidirectional devices having V
R
of 10 volts and under, the I
R
limit is doubled.
3. Type Number marking may contain a “V” or dash in place of decimal point.
DS21508 Rev. B-4
2 of 4
P4KE6.8-P4KE400CA
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