Transient Voltage Suppression Diodes
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Axial Leaded – 1500W > 1.5KE series
AGENCY AGENCY FILE NUMBER
E230531
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
The 1.5KE Series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Description
Parameter Symbol Value Unit
Peak Pulse Power Dissipation by
10/1000μs Test Waveform (Fig.2)
(Note 1), (Note 4)
PPPM 1500 W
Steady State Power Dissipation on
Infinite Heat Sink at TL=75ºC PD6.5 W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
Only (Note 2)
IFSM 200 A
Maximum Instantaneous Forward
Voltage at 100A for Unidirectional
Only (Note 3)
VF3.5/5.0 V
Operating Junction and Storage
Temperature Range TJ, TSTG -55 to 175 °C
Typical Thermal Resistance
Junction to Lead RθJL 15 °C/W
Typical Thermal Resistance
Junction to Ambient RθJA 75 °C/W
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above TJ (initial) =25OC per Fig. 3.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
3. VF < 3.5V for single die parts and VF< 5.0V for stacked-die parts.
4. The PPPM of stacked-die parts is 2kW and please contact littelfuse for the detail
stacked-die parts.
Maximum Ratings and Thermal Characteristics
(TA=25OC unless otherwise noted)
Agency Approvals
• 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 IR less than 1μA
when VBR min>12V
High temperature
to reflow soldering
guaranteed: 260°C/40sec
/ 0.375”,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
VBR @ TJ= VBR@25°C
x (1+αT x (TJ - 25))
(αT:Temperature
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-STD-
609A.01)
1.5KE Series
Bi-directional
Uni-directional
Functional Diagram
Bi-directional
Uni-directional
Cathode Anode
RoHS
Pb
e3
Datasheet
Additional Infomarion
Resources
Samples
Transient Voltage Suppression Diodes
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Axial Leaded – 1500W > 1.5KE series
Electrical Characteristics (TA=25°C unless otherwise noted)
Part
Number
(Uni)
Part
Number
(Bi)
Reverse
Stand off
Voltage VR
(Volts)
Breakdown Voltage VBR
(Volts) @ IT
Test
Current
IT (mA)
Maximum
Clamping
Voltage
VC @ Ipp
(Volts)
Maximum
Peak Pulse
Current Ipp
(A)
Maximum
Reverse
Leakage IR @
VR (µA)
Agency
Approval
MIN MAX
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. 1 3 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. 1 0 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 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.
Transient Voltage Suppression Diodes
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Axial Leaded – 1500W > 1.5KE series
I-V Curve Characteristics
Voltage Transients
Time
Voltage Across TVS
Current Through TVS
Voltage or Current
Figure 1 - TVS Transients Clamping Waveform
Ratings and Characteristic Curves (TA=25°C unless otherwise noted)
Figure 2 - Peak Pulse Power Rating
Vc VBR VR
IR
IT
Ipp
V
Uni-directional
VF
Vc VBR VR
IR
IT
Ipp
V
Vc
VBR
VR
Ipp
IR
IT
Bi-directional
PPPM Peak Pulse Power Dissipation -- Max power dissipation
VR Stand-off Voltage -- Maximum voltage that can be applied to the TVS without operation
VBR Breakdown Voltage -- Maximum voltage that flows though the TVS at a specified test current (IT)
VC Clamping Voltage -- Peak voltage measured across the TVS at a specified Ippm (peak impulse current)
IR Reverse Leakage Current -- Current measured at VR
VF Forward Voltage Drop for Uni-directional
continues on next page.
t
d
-Pulse Width (ms)
PPPM-Peak Pulse Power (kW)
0.1
1
10
100
0.0010.010.1 110
stacked-die, 2kW
at 10x1000
µs, 25°C
TJ initial = Tamb
Single die, 1.5kW
at 10x1000
µs, 25°C
Transient Voltage Suppression Diodes
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Axial Leaded – 1500W > 1.5KE series
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
100000
110100 1000
Uni-directional V=0V
Bi-directional V=0V
Bi-directional V=
V
R
Uni-directional V=
V
R
Cj(pF)
VBR
-Reverse Breakdown Voltage(V)
Figure 4 - Pulse Waveform
Figure 5 - Typical Junction Capacitance
0
20
40
60
80
100
120
140
160
180
200
110100
Number of Cycles at 60 Hz
IFSM - Peak Forward Surge Current (A)
Figure 7 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
Figure 3 - Peak Pulse Power Derating Curve
Ratings and Characteristic Curves (TA=25°C unless otherwise noted) (Continued)
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
0
25
50
75
100
0255075100 125 150 175 200
T
J
- Initial Junction Temperature (ºC)
Transient Thermal Impedance C/W)
-Pulse Duration (s)
TP
0.1
1
10
100
0.01 0.11 10 100 1000
Figure 6 - Typical Transient Thermal Impedance
IF-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
Figure 8 - Peak Forward Voltage Drop vs Peak Forward
Current (Typical Values)
Transient Voltage Suppression Diodes
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Axial Leaded – 1500W > 1.5KE series
Physical Specifications
Weight 0.045oz., 1.2g
Case JEDEC DO-201 molded plastic body
over passivated junction.
Polarity Color band denotes the cathode except
Bipolar.
Terminal Matte Tin axial leads, solderable per
JESD22-B102.
Dimensions
Dimensions
Inches Millimeters
Min Max Min Max
A1.000 - 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
D
AA
C
B
Cathode Band
(for Uni-directional products only)
DO-201
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 Lead–free
assembly
Pre Heat
- Temperature Min (Ts(min)) 150°C
- Temperature Max (Ts(max)) 200°C
- Time (min to max) (ts) 60 – 180 secs
Average ramp up rate (Liquidus Temp (TA)
to peak 3°C/second max
TS(max) to TA - Ramp-up Rate 3°C/second max
Reflow - Temperature (TA) (Liquidus) 217°C
- Time (min to max) (ts) 60 – 150 seconds
Peak Temperature (TP) 260+0/-5 °C
Time within 5°C of actual peak
Temperature (tp)20 – 40 seconds
Ramp-down Rate 6°C/second max
Time 25°C to peak Temperature (TP) 8 minutes Max.
Do not exceed 260°C
Flow/Wave Soldering (Solder Dipping)
Peak Temperature : 265OC
Dipping Time : 10 seconds
Soldering : 1 time
Environmental Specifications
High Temp. Storage JESD22-A103
HTRB JESD22-A108
Temperature Cycling JESD22-A104
H3TRB JESD22-A101
RSH JESD22-B106
Transient Voltage Suppression Diodes
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Axial Leaded – 1500W > 1.5KE series
Part Numbering System
Packaging
Part Number Component
Package Quantity Packaging
Option Packaging Specification
1.5KExxxXX DO-201 1200 Tape & Reel EIA STD RS-296
1.5KExxxXX-B DO-201 500 BULK Littelfuse Spec.
Part Marking System
F
1.5KEXXX
YYWW
Trace Code Marking
YY:Year Code
WW: Week Code
Product Type
Littelfuse Logo
Cathode Band
(for Uni-directional
products only
)
Tape and Reel Specification
2.063+0.079/-0.039
2.56
0.394+/-0.020
2.75
0.047
(330.2)
R
ecess Depth Max. 0.75 (19.05)
Off Center
either side
0.028(0.7)
Dimensions are in
inches/mm
0.236
(65.0)
(10.0+/-0.5)
(53.0+2.0/-1.0)
(6.0)
(1.2)
(69.85)
13.0
(76.2)
3.0
0.68
(17. 27)
Direction of Feed