Page 1
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
1.5KE Series
Uni-directional
Bi-directional
Agency Approvals
AGENCY AGENCY FILE NUMBER
E230531
Maximum Ratings and Thermal Characteristics
(T
=25OC unless otherwise noted)
A
Parameter Symbol Value Unit
Peak Pulse Power Dissipation by
10/1000μs Test Waveform (Fig.2)
(Note 1), (Note 4)
Steady State Power Dissipation on
Infinite Heat Sink at T
Peak For ward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
Only (Note 2)
Maximum Instantaneous Forward
Voltage at 100A for Unidirectional
Only (Note 3)
Operating Junction and Storage
Temperature Range
Typical Thermal Resistance
Junction to Lead
Typical Thermal Resistance
Junction to Ambient
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
< 3.5V for single die parts and VF< 5.0V for stacked-die parts.
3. V
F
of stacked-die parts is 2kW and please contact littelfuse for the detail
4. The P
PPM
stacked-die parts.
=75ºC
L
P
PPM
P
D
I
FSM
V
F
, T
T
J
STG
R
θ JL
R
θ JA
(initial) =25OC per Fig. 3.
J
150 0 W
6.5 W
200 A
3.5/5.0 V
-55 to 175 °C
15 °C/W
75 °C/W
RoHS
Description
The 1.5KE Series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Features
• 1500W peak pulse
capability at 10/1000μs
waveform, repetition rate
(duty cycles):0.01%
• Glass passivated chip
junction in DO-201
Package
• Fast response time:
typically less than 1.0ps
from 0 Volts to BV min
• Excellent clamping
capability
• Typical failure mode is
short from over-specified
voltage or current
• Whisker test is conducted
based on JEDEC
JESD201A per its table 4a
and 4c
• IEC-61000-4-2 ESD
30kV(Air), 30kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2
• EFT protection of data
lines in accordance with
IEC 61000-4-4
• Low incremental surge
resistance
• Typical I
when V
less than 1μA
R
min>12V
BR
• High temperature
to reflow soldering
guaranteed: 260°C/40sec
/ 0.375”,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
• V
@ TJ= VBR@25°C
BR
x (1+
αT x (T
(
αT:Temperature
- 25))
J
Coefficient, typical value
is 0.1%)
• Plastic package is
flammability rated V-0 per
Underwriters Laboratories
• Matte tin lead–free plated
• Halogen free and RoHS
compliant
• Pb-free E3 means 2nd
level interconnect is
Pb-free and the terminal
finish material is tin(Sn)
(IPC/JEDEC J-STD609A.01)
Applications
TVS devices are ideal for the protection of I/O interfaces,
V
bus and other vulnerable circuits used in telecom,
CC
computer, industrial and consumer electronic applications.
Functional Diagram
Bi-directional
Cathode
Uni-directional
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Additional Infomarion
Resources
Anode
Page 2
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Electrical Characteristics (T
Part
Number
(Uni)
Part
Number
(Bi)
=25°C unless otherwise noted)
A
Reverse
Stand off
Voltage V
(Volts)
Breakdown Voltage VBR
R
MIN MAX
(Volts) @ I
Test
T
Current
IT (mA)
Clamping
Voltage
VC @ Ipp
(Volts)
Maximum
Maximum
Peak Pulse
Current I
(A)
pp
Maximum
Reverse
Leakage IR @
VR (µA)
1.5KE6.8A 1.5KE6.8CA 5.80 6.45 7. 1 4 10 10.5 144.8 1000 X
1.5KE7.5A 1.5KE7.5CA 6.40 7. 13 7.88 10 11. 3 134.5 500 X
1.5KE8.2A 1.5KE8.2CA 7.02 7.79 8.61 10 12.1 125.6 200 X
1.5KE9.1A 1.5KE9.1CA 7.78 8.65 9.50 1 13.4 113.4 50 X
1.5KE10A 1.5KE10CA 8.55 9.50 10.50 1 14.5 104.8 10 X
1.5KE11A 1.5KE11CA 9.40 10.50 11.60 1 15.6 97.4 5 X
1.5KE12A 1.5KE12CA 10.20 11.40 12.60 1 16.7 91.0 5 X
1.5KE13A 1.5KE13CA 11. 10 12.40 13.70 1 18.2 83.5 1 X
1.5KE15A 1.5KE15CA 12.80 14.30 15.80 1 21.2 71.7 1 X
1.5KE16A 1.5KE16CA 13.60 15.20 16.80 1 22.5 67.6 1 X
1.5KE18A 1.5KE18CA 15.30 1 7. 1 0 18.90 1 25.2 60.3 1 X
1.5KE20A 1.5KE20CA 1 7. 10 19.00 21.00 1 27.7 54.9 1 X
1.5KE22A 1.5KE22CA 18.80 20.90 23.10 1 30.6 49.7 1 X
1.5KE24A 1.5KE24CA 20.50 22.80 25.20 1 33.2 45.8 1 X
1.5KE27A 1.5KE27CA 23.10 25.70 28.40 1 37.5 40.5 1 X
1.5KE30A 1.5KE30CA 25.60 28.50 31.50 1 41.4 36.7 1 X
1.5KE33A 1.5KE33CA 28.20 31.40 34.70 1 45.7 33.3 1 X
1.5KE36A 1.5KE36CA 30.80 34.20 37.80 1 49.9 30.5 1 X
1.5KE39A 1.5KE39CA 33.30 37.10 41.00 1 53.9 28.2 1 X
1.5KE43A 1.5KE43CA 36.80 40.90 45.20 1 59.3 25.6 1 X
1.5KE47A 1.5KE47CA 40.20 44.70 49.40 1 64.8 23.5 1 X
1.5KE51A 1.5KE51CA 43.60 48.50 53.60 1 70.1 21.7 1 X
1.5KE56A 1.5KE56CA 47.80 53.20 58.80 1 77.0 19.7 1 X
1.5KE62A 1.5KE62CA 53.00 58.90 65.10 1 85.0 1 7. 9 1 X
1.5KE68A 1.5KE68CA 58.10 64.60 71.40 1 92.0 16.5 1 X
1.5KE75A 1.5KE75CA 64.10 71.30 78.80 1 103.0 14.8 1 X
1.5KE82A 1.5KE82CA 70.10 77.90 86.10 1 113.0 13.5 1 X
1.5KE91A 1.5KE91CA 77.80 86.50 95.50 1 125.0 12.2 1 X
1.5KE100A 1.5KE100CA 85.50 95.00 105.00 1 137.0 11. 1 1 X
1.5KE110A 1.5KE110CA 94.00 105.00 116.00 1 152.0 10.0 1 X
1.5KE120A 1.5KE120CA 102.00 114.00 126.00 1 165.0 9.2 1 X
1.5KE130A 1.5KE130CA 111.0 0 124.00 137.00 1 179.0 8.5 1 X
1.5KE150A 1.5KE150CA 128.00 143.00 158.00 1 207.0 7. 3 1 X
1.5KE160A 1.5KE160CA 136.00 152.00 168.00 1 219.0 6.9 1 X
1.5KE170A 1.5KE170CA 145.00 162.00 179.00 1 234.0 6.5 1 X
1.5KE180A 1.5KE180CA 154.00 171.00 189.00 1 246.0 6.2 1 X
1.5KE200A 1.5KE200CA 171.00 190.00 210.00 1 274.0 5.5 1 X
1.5KE220A 1.5KE220CA 185.00 209.00 231.00 1 328.0 4.6 1 X
1.5KE250A 1.5KE250CA 214.00 237.00 263.00 1 344.0 4.4 1 X
1.5KE300A 1.5KE300CA 256.00 285.00 315.00 1 414.0 3.7
1 X
1.5KE320A 1.5KE320CA 273.00 304.00 336.00 1 441.0 3.5 1 X
1.5KE350A 1.5KE350CA 300.00 332.00 368.00 1 482.0 3.2 1 X
1.5KE400A 1.5KE400CA 342.00 380.00 420.00 1 548.0 2.8 1 X
1.5KE440A 1.5KE440CA 376.00 418.00 462.00 1 602.0 2.5 1 X
1.5KE480A 1.5KE480CA 408.00 456.00 504.00 1 658.0 2.3 1
1.5KE510A 1.5KE510CA 434.00 485.00 535.00 1 698.0 2.1 1
1.5KE530A 1.5KE530CA 451.00 503.50 556.50 1 725.0 2.1 1
1.5KE540A 1.5KE540CA 460.00 513.00 567.00 1 740.0 2.0 1
1.5KE550A 1.5KE550CA 468.00 522.50 577.50 1 760.0 2.0 1
1.5KE600A 1.5KE600CA 512.00 570.00 630.00 1 828.0 1. 8 1
F
For bidirectional type having V
For parts without A, the V
of 10 volts and less, the IR limit is double.
R
is ± 10% and VC is 5% higher than with A parts.
BR
Agency
Approval
Specifications are subject to change without notice.
© 2015 Littelfuse, Inc.
Revised: 11/20/15
Page 3
Transient Voltage Suppression Diodes
Voltage Transients
Time
Voltage Across TVS
Current Through TVS
td-Pulse Width (ms)
P
PPM
-Peak Pulse Power (kW)
0.1
1
10
100
0.0010 .010 .1 11 0
stacked-die, 2kW
at 10x1000
µs, 25°C
TJ initial = T
amb
Single die, 1.5kW
at 10x1000
µs, 25°C
Axial Leaded – 1500W > 1.5KE series
I-V Curve Characteristics
Uni-directional
BR
V
Vc
VR
IR
VF
IT
V
Bi-directional
BR
V
Vc
VR
Ipp
P
Peak Pulse Power Dissipation -- Max power dissipation
PPM
V
Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation
R
V
Breakdown Voltage -- Maximum voltage that flows though the TVS at a specified test current (I T)
BR
V
Clamping Voltage -- Peak voltage measured across the TVS at a specified Ippm (peak impulse current)
C
I
Reverse Leakage Current -- Current measured at V
R
V
Forward Voltage Drop for Uni-directional
F
Ratings and Characteristic Curves (T
Figure 1 - TVS Transients Clamping Waveform
R
=25°C unless otherwise noted)
A
Figure 2 - Peak Pulse Power Rating
Ipp
IT
IR
IR
IT
VR
BR
V
V
Vc
Ipp
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
continues on next page.
Page 4
Transient Voltage Suppression Diodes
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
0
25
50
75
100
02 55 07 5 100 125 150 175 200
TJ - Initial Junction Temperature (ºC)
Transient Thermal Impe dance (°C/W)
-Pulse Dura tion (s)
T
P
0.1
1
10
100
0.01 0.11 10 100 1000
I
F
-Peak Forward Current(A)
VF-Peak Forward Voltage(V)
0.1
1.0
10.0
100.0
0.01 .0 2.03 .0 4.05 .0 6.07 .0 8.09 .0
Stacked-die
Single die
Axial Leaded – 1500W > 1.5KE series
Ratings and Characteristic Curves (T
=25°C unless otherwise noted) (Continued)
A
Figure 3 - Peak Pulse Power Derating Curve
Figure 5 - Typical Junction Capacitance
100000
Uni-directional V=0V
Bi-directional V=0V
VR
Cj(pF)
10000
1000
100
Uni-directional V=
Figure 4 - Pulse Waveform
150
RSM
100
50
- Peak Pulse Current, % I
PPM
I
0
tr=10µsec
Peak Value
I
PPM
t
d
0
1.0 2.0 3.0 4.0
Half Value
I
PPM
( )
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of I
I
PPM
2
10/1000µsec. Waveform
as defined by R.E.A
PPM
t-Time (ms)
Figure 6 - Typical Transient Thermal Impedance
10
1
11 01 00 1000
Bi-directional V=
VBR-Reverse Breakdown Voltage(V)
Figure 7 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
200
180
160
140
120
100
80
60
40
- Peak Forward Surge Current (A)
FSM
I
20
0
11 0 100
Number of Cycles at 60 Hz
V
R
Figure 8 - Peak Forward Voltage Drop vs Peak Forward
Current (Typical Values)
Specifications are subject to change without notice.
© 2015 Littelfuse, Inc.
Revised: 11/20/15
Page 5
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Soldering Parameters
Reflow Condition
- Temperature Min (T
Pre Heat
- Temperature Max (T
) 150°C
s(min)
) 200°C
s(max)
Lead–free
assembly
- Time (min to max) (ts) 60 – 180 secs
Average ramp up rate (Liquidus Temp (T
to peak
to TA - Ramp-up Rate 3°C/second max
T
S(max)
Reflow
- Temperature (TA) (Liquidus) 217°C
- Time (min to max) (ts) 60 – 150 seconds
Peak Temperature (TP) 260
Time within 5°C of actual peak
Temperature (t
)
p
)
A
3°C/second max
20 – 40 seconds
+0/-5
°C
Ramp-down Rate 6°C/second max
Time 25°C to peak Temperature (T
Do not exceed
) 8 minutes Max.
P
26 0°C
Physical Specifications
Weight 0.045oz., 1.2g
Case
JEDEC DO-201 molded plastic body
over passivated junction.
t
T
P
Ramp-up Critical Zone
T
L
T
s(max)
T
s(min)
Temperature (T)
25˚C
t
s
Preheat
t 25˚C to Peak
Time (t)
p
Flow/Wave Soldering (Solder Dipping)
Peak Temperature : 265 OC
Dipping Time : 10 seconds
Soldering : 1 time
Environmental Specifications
High Temp. Storage JESD22-A103
HTRB JESD22-A108
T
T
to
L
t
L
P
Ramp-down
Polarity
Terminal
Dimensions
Color band denotes the cathode except
Bipolar.
Matte Tin axial leads, solderable per
Temperature Cycling JESD22-A104
H3TRB JESD22-A101
JESD22-B102.
RSH JESD22-B106
Dimensions
(for Uni-directional products only)
D
C
A
B
A
A 1.000 - 25.40 -
B 0.285 0.375 7.20 9.50
C 0.038 0.042 0.96 1.07
D 0.190 0.210 4.80 5.30
Inches Millimeters
Min Max Min Max
DO-201
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Page 6
Transient Voltage Suppression Diodes
OPTION CODE:
BLANK Reel Tape
-B Bulk Packaging
SERIES CODE
1.5KE
xxx XX
X
TYPE CODE:
A Uni-Directional (5%
V
BR
Voltage Tolerance)
CA Bi-Directional (5%
V
BR
Voltage Tolerance)
V
BR
VOLTA GE CODE
(Refer to the Electrical Characteristics table)
Cathode Band
(for Uni-directional
products only
Axial Leaded – 1500W > 1.5KE series
Part Numbering System
Part Marking System
Littelfuse Logo
Packaging
Part Number
Component
Package
Quantity
1.5KExxxXX DO-201 1200 Tape & Reel EIA STD RS-296
1.5KExxxXX-B DO-201 500 BULK Littelfuse Spec.
Packaging
Option
Packaging Specification
Tape and Reel Specification
)
YYWW
F
1.5KEXXX
YY:Year Code
WW: Week Code
Product Type
2.56
(65.0)
0.394+/-0.020
(10.0+/-0.5)
0.68
(17. 27)
2.75
(69.85)
ecess Depth Max. 0.75 ( 19.05)
13.0
(330.2)
3.0
(76.2)
Off Center
either side
0.028(0.7)
0.047
(1.2)
Dimensions are in
inches/mm
Direction of Feed
2.063+0.079/-0.039
(53.0+2.0/-1.0)
0.236
(6.0)
Specifications are subject to change without notice.
© 2015 Littelfuse, Inc.
Revised: 11/20/15