50www.littelfuse.com
©2007 Littelfuse Specifications are subject to change without notice.
Transient Voltage Suppression Diodes
Axial Leaded – 400W
P4KE Series
P4KE Series
RoHS
TVS devices are ideal for the protection of I/O interfaces,
VCC bus and other vulnerable circuits used in telecom,
computer, industrial and consumer electronic applications.
Applications
Features
5IF1,&4FSJFTJTEFTJHOFETQFDJmDBMMZUPQSPUFDU
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)
PPPM 400 W
Steady State Power Dissipation on
inifinite heat sink at TL=75ºC (Fig. 5) PD1. 5 W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
only (Note 2)
IFSM 40 A
Maximum Instantaneous Forward
Voltage at 25A for Unidirectional
only (Note 3)
VF3.5/5.0 V
Operating Junction and Storage
Temperature Range T
J, TSTG -55 to 175 °C
Typical Thermal Resistance Junction
to Lead RuJL 60 °C/W
Typical Thermal Resistance Junction
to Ambient RuJA 100 °C/W
Notes:
1. Non-repetitive current pulse , per Fig. 3 and derated above TA = 25OC per Fig. 2.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
3. VF<3.5V for devices of VBR _
<
200V and VF<5.0V for devices of VBR _
>
201V.
Maximum Ratings and Thermal Characteristics
(TA=25OC unless otherwise noted)
Agency Approvals
t 3P)4DPNQMJBOU
t 5ZQJDBMNBYJNVN
temperature coefficient
Δ VBR = 0.1% × VBR@25°C
t (MBTTQBTTJWBUFEDIJQ
KVODUJPOJO%0
Package
t 8QFBLQVMTF
capability at 10×1000μs
waveform, repetition rate
(duty cycles):0.01%
t 'BTUSFTQPOTFUJNF
typically less than 1.0ps
from 0 Volts to BV min
t &YDFMMFOUDMBNQJOH
capability
t -PXJODSFNFOUBMTVSHF
resistance
t 5ZQJDBM*R less than 1μA
above 13V
t )JHIUFNQFSBUVSF
soldering guaranteed:
260°C/40 seconds /
wNNMFBE
length, 5 lbs., (2.3kg)
tension
t 1MBTUJDQBDLBHFIBT
Underwriters Laboratory
Flammability classification
94V-O
t .BUUF5JO-FBEoGSFF
plated
AGENCY AGENCY FILE NUMBER
E230531
www.littelfuse.com
©2007 Littelfuse
Specifications are subject to change without notice.
51
Transient Voltage Suppression Diodes
Axial Leaded – 400W
P4KE Series
Electrical Characteristics
Part
Number
(Uni)
Part
Number
(Bi)
Reverse
Stand off
Voltage VR
(Volts)
Breakdown
Voltage
VBR@ IT (V)
Test
Current
IT
(mA)
Maximum
Clamping
Voltage
VC @ Ipp
(V)
Maximum
Peak
Pulse
Current Ipp
(A)
Maximum
Reverse
Leakage
IR @ VR(μA)
Agency
Approval
MIN MAX
1,&" 1,&$" 5.80 6.45 7.14 10 10.5 39.00 1000 X
1,&" 1,&$" 6.40 7.13 7.88 10 11.3 36.30 500 X
1,&" 1,&$" 7.02 7.79 8.61 10 12.1 33.90 200 X
1,&" 1,&$" 7.78 8.65 9.55 1 13.4 30.60 50 X
1,&" 1,&$" 8.55 9.50 10.50 1 14.5 28.30 10 X
1,&" 1,&$" 9.40 10.50 11.60 1 15.6 26.30 5 X
1,&" 1,&$" 10.20 11.40 12.60 1 16.7 24.60 5 X
1,&" 1,&$" 11.10 12.40 13.70 1 18.2 22.50 1 X
1,&" 1,&$" 12.80 14.30 15.80 1 21.2 19.30 1 X
1,&" 1,&$" 13.60 15.20 16.80 1 22.5 18.20 1 X
1,&" 1,&$" 15.30 17.10 18.90 1 25.5 16.10 1 X
1,&" 1,&$" 17.10 19.00 21.00 1 27.7 14.80 1 X
1,&" 1,&$" 18.80 20.90 23.10 1 30.6 13.40 1 X
1,&" 1,&$" 20.50 22.80 25.20 1 33.2 12.30 1 X
1,&" 1,&$" 23.10 25.70 28.40 1 37.5 10.90 1 X
1,&" 1,&$" 25.60 28.50 31.50 1 41.4 9.90 1 X
1,&" 1,&$" 28.20 31.40 34.70 1 45.7 9.00 1 X
1,&" 1,&$" 30.80 34.20 37.80 1 49.9 8.20 1 X
1,&" 1,&$" 33.30 37.10 41.00 1 53.9 7.60 1 X
1,&" 1,&$" 36.80 40.90 45.20 1 59.3 6.90 1 X
1,&" 1,&$" 40.20 44.70 49.40 1 64.8 6.30 1 X
1,&" 1,&$" 43.60 48.50 53.60 1 70.1 5.80 1 X
1,&" 1,&$" 47.80 53.20 58.80 1 77.0 5.30 1 X
1,&" 1,&$" 53.00 58.90 65.10 1 85.0 4.80 1 X
1,&" 1,&$" 58.10 64.60 71.40 1 92.0 4.50 1 X
1,&" 1,&$" 64.10 71.30 78.80 1 103.0 4.00 1 X
1,&" 1,&$" 70.10 77.90 86.10 1 113.0 3.60 1 X
1,&" 1,&$" 77.80 86.50 95.50 1 125.0 3.30 1 X
1,&" 1,&$" 85.50 95.00 105.00 1 137.0 3.00 1 X
1,&" 1,&$" 94.00 105.00 116.00 1 152.0 2.70 1 X
1,&" 1,&$" 102.00 114.00 126.00 1 165.0 2.50 1 X
1,&" 1,&$" 111.00 124.00 137.00 1 179.0 2.30 1 X
1,&" 1,&$" 128.00 143.00 158.00 1 207.0 2.00 1 X
1,&" 1,&$" 136.00 152.00 168.00 1 219.0 1.90 1 X
1,&" 1,&$" 145.00 162.00 179.00 1 234.0 1.80 1 X
1,&" 1,&$" 154.00 171.00 189.00 1 246.0 1.70 1 X
1,&" 1,&$" 171.00 190.00 210.00 1 274.0 1.50 1 X
1,&" 1,&$" 185.00 209.00 231.00 1 328.0 1.30 1 X
1,&" 1,&$" 214.00 237.00 263.00 1 344.0 1.20 1 X
1,&" 1,&$" 256.00 285.00 315.00 1 414.0 1.00 1 X
1,&" 1,&$" 300.00 332.00 368.00 1 482.0 0.85 1 X
1,&" 1,&$" 342.00 380.00 420.00 1 548.0 0.75 1 X
1,&" 1,&$" 376.00 418.00 462.00 1 602.0 0.68 1 X
1,&" 1,&$" 408.00 456.00 504.00 1 658.0 0.61 1
1,&" 1,&$" 434.00 485.00 535.00 1 698.0 0.57 1
1,&" 1,&$" 477.00 503.50 556.50 1 725.0 0.55 1
1,&" 1,&$" 486.00 513.00 567.00 1 740.0 0.54 1
1,&" 1,&$" 495.00 522.50 577.50 1 760.0 0.52 1
For bidirectional type having VR of 10 volts and less, the IR limit is double.
For parts without A , the VBR is ± 10% and VC is 5% higher than with A parts
52www.littelfuse.com
©2007 Littelfuse Specifications are subject to change without notice.
Transient Voltage Suppression Diodes
Axial Leaded – 400W
P4KE Series
Ratings and Characteristic Curves (TA=25°C unless otherwise noted)
td - Pulse Width (sec.)
PPPM- Peak Pulse Power (KW)
0.1μs 1.0μs 10μs 100μs 1.0ms 10ms
0.1
1
10
100
TA- Ambient Temperature (˚C)
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage, %
0
0
25
25
50
50
75
75
100
100
125 150 175 200
Figure 1 - Peak Pulse Power Rating Figure 2 - Pulse Derating Curve
IPPM- Peak Pulse Current, % IRSM
0
0
50
100
150
1.0 2.0 3.0 4.0
tr=10μsec
Peak Value
IPPM
IPPM
2
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
10/1000μsec. Waveform
as defined by R.E.A
td
t-Time (ms)
Half Value
IPPM ( )
1
10
100
1000
10000
1.0 10.0 100.0 1000.0
VBR - Reverse Breakdown Voltage (V)
Cj (pF)
Tj=25C
f=1.0MHz
Vsig=50mVp-p
Uni-directional VR=0V
Bi-directional VR=0V
Uni-directional @ V
R
Bi-directional @VR
Figure 3 - Pulse Waveform Figure 4 - Typical Junction Capacitance Uni-Directional
Figure 5 - Steady Pulse Derating Curve
0
0.2
0.4
0.6
0.8
1
1.2
0 25 50 75 100 125 150 175 200
Steady Sate Power Dissipation (W)
L = 0.375" (9.5mm)
Lead Lengths
TL-Lead Temperature(ºC)
0
5
10
15
20
25
30
35
40
45
110100
Number of Cycles at 60 Hz
IFSM - Peak Forward Surge Current
(A)
Figure 6 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
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©2007 Littelfuse
Specifications are subject to change without notice.
53
Transient Voltage Suppression Diodes
Axial Leaded – 400W
P4KE Series
Physical Specifications
Weight 0.012oz., 0.3g
Case +&%&$%0"-%0NPMEFE
QMBTUJDCPEZPWFSQBTTJWBUFEKVODUJPO
Polarity Color band denotes the cathode except
Bipolar.
Terminal Matte Tin axial leads, solderable per
+&4%#%
Dimensions
Dimensions Inches Millimeters
Min Max Min Max
A 1.000 - 25.40 -
B 0.160 0.205 4.10 5.20
C 0.028 0.034 0.71 0.86
D 0.080 0.107 2.00 2.70
D
AA
C
B
DO-204AL (DO-41)
Environmental Specifications
Temperature Cycle +&4%"
Pressure Cooker +&4%"
High Temp. Storage +&4%"
HTRB +&4%"
Thermal Shock +&4%"
Soldering Parameters
Temperature (T)
Time (t)
Ts(min)
Ts(max)
TL
TP
ts
Preheat
tL
tp
Ramp-up Critical Zone
TL to TP
Ramp-down
t 25˚C to Peak
25˚C
Reflow Condition -FBEoGSFFBTTFNCMZ
Pre Heat
- Temperature Min (Ts(min))150°C
- Temperature Max (Ts(max))200°C
- Time (min to max) (ts)oTFDT
Average ramp up rate (Liquidus Temp
(TL) to peak 3°C/second max
TS(max) to TL - Ramp-up Rate 3°C/second max
Reflow - Temperature (TL) (Liquidus) 217°C
- Time (min to max) (ts)oTFDPOET
Peak Temperature (TP)260+0/-5 °C
Time within 5°C of actual peak
Temperature (tp)oTFDPOET
Ramp-down Rate 6°C/second max
Time 25°C to peak Temperature (TP)8 minutes Max.
Do not exceed 280°C
Flow/Wave Soldering (Solder Dipping)
Peak Temperature : 260OC
Dipping Time : 5 seconds
Soldering : 1 time
54www.littelfuse.com
©2007 Littelfuse Specifications are subject to change without notice.
Transient Voltage Suppression Diodes
Axial Leaded – 400W
P4KE Series
Part Numbering System
Packaging
Part Number Component
Package Quantity Packaging
Option Packaging Specification
1,&xxxXX DO-204AL 5000 Tape & Reel &*"45%34&
1,&xxxXXB DO-204AL 500 BOX Littelfuse Concord Packing Spec. DM-0016
VO LTAG E
BI-DIRECTIONAL
5% VOLTAGE TOLERANCE
SERIES
P4KE XXX C A
Option: Suffix B is for bulk packing.
Part Marking System
F
P4KEXXX
Product Type
Littelfuse Logo
Cathode Band