©2009 Littelfuse, Inc.
Revised: August 30, 2009 9:24 AM
Axial Leaded – 1500W > 1.5KE Automotive Series
1.5KE Automotive Series
1.5KE Automotive Series
Automotive Transient Voltage Suppression Diodes
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
AGENCY AGENCY FILE NUMBER
E128662/E230531
1.5KE Automotive Series
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 Automotive 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
10x1000μs test waveform (Fig.1)
(Note 1)
PPPM 1500 W
Steady State Power Dissipation on
inifinite heat sink at TL=75ºC (Fig. 5) 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
VF3.5 V
Operating Junction and Storage
Temperature Range T
J, TSTG -55 to 175 °C
Typical Thermal Resistance Junction
to Lead RuJL 15 °C/W
Typical Thermal Resistance Junction
to Ambient RuJA 75 °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.
Maximum Ratings and Thermal Characteristics
(TA=25OC unless otherwise noted)
Agency Approvals
• Halogen-Free
• RoHS compliant
• Typical maximum
temperature coefficient
ΔVBR = 0.1% x VBR@25°C x ΔT
• Glass passivated chip
junction in DO-201
Package
• 1500W peak pulse
capability at 10×1000μs
waveform, repetition rate
(duty cycles):0.01%
• Fast response time:
typically less than 1.0ps
from 0 Volts to BV min
• Excellent clamping
capability
• Low incremental surge
resistance
• Typical IR less than 1μA
above 13V
• High temperature
soldering guaranteed:
260°C/40 seconds /
0.375”,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
• Plastic package has
Underwriters Laboratory
Flammability classification
94V-O
• Matte Tin Lead–free plated
RoHS
Revised: August 30, 2009 9:24 AM
©2009 Littelfuse, Inc.
1.5KE Automotive Series
Axial Leaded – 1500W > 1.5KE Automotive Series
Automotive Transient Voltage Suppression Diodes
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
Electrical Characteristics
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
1.5KE12AAUTO 1.5KE12CAAUTO 10.20 11.40 12.60 1 16.7 91.0 5 X
1.5KE13AAUTO 1.5KE13CAAUTO 11.10 12.40 13.70 1 18.2 83.5 1 X
1.5KE15AAUTO 1.5KE15CAAUTO 12.80 14.30 15.80 1 21.2 71.7 1 X
1.5KE16AAUTO 1.5KE16CAAUTO 13.60 15.20 16.80 1 22.5 67.6 1 X
1.5KE18AAUTO 1.5KE18CAAUTO 15.30 17.10 18.90 1 25.2 60.3 1 X
1.5KE20AAUTO 1.5KE20CAAUTO 17.10 19.00 21.00 1 27.7 54.9 1 X
1.5KE22AAUTO 1.5KE22CAAUTO 18.80 20.90 23.10 1 30.6 49.7 1 X
1.5KE24AAUTO 1.5KE24CAAUTO 20.50 22.80 25.20 1 33.2 45.8 1 X
1.5KE27AAUTO 1.5KE27CAAUTO 23.10 25.70 28.40 1 37.5 40.5 1 X
1.5KE30AAUTO 1.5KE30CAAUTO 25.60 28.50 31.50 1 41.4 36.7 1 X
1.5KE33AAUTO 1.5KE33CAAUTO 28.20 31.40 34.70 1 45.7 33.3 1 X
1.5KE36AAUTO 1.5KE36CAAUTO 30.80 34.20 37.80 1 49.9 30.5 1 X
1.5KE39AAUTO 1.5KE39CAAUTO 33.30 37.10 41.00 1 53.9 28.2 1 X
1.5KE43AAUTO 1.5KE43CAAUTO 36.80 40.90 45.20 1 59.3 25.6 1 X
1.5KE47AAUTO 1.5KE47CAAUTO 40.20 44.70 49.40 1 64.8 23.5 1 X
For parts without A, the VBR is +10% and VC is 5% higher than with A parts.
©2009 Littelfuse, Inc.
Revised: August 30, 2009 9:24 AM
Axial Leaded – 1500W > 1.5KE Automotive Series
1.5KE Automotive Series
1.5KE Automotive Series
Automotive Transient Voltage Suppression Diodes
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
Ratings and Characteristic Curves (TA=25°C unless otherwise noted)
0.1
1
10
100
1000
0.000001 0.00001 0.0001 0.001
PPPM-Peak Pulse Power (kW)
td-Pulse Width (Sec.)
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 ( )
TA-Ambient Temperature (ºC)
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage %
0 25 50 75 100 125 150 175 200
100
75
50
25
0
1
10
100
1000
10000
100000
1.0 10.0 100.0 1000.0
Cj (pF)
Tj=25C
f=1.0MHz
Vsig=50mVp-p
Uni-directional V=0V
Bi-directional V=0V
VBR - Reverse Breakdown Voltage (V)
Uni-directional @ VR
Bi-directional @ VR
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
0 25 50 75 100 125 150 175 200
Steady State Power Dissipation (W)
TL - Lead Temperature(ºC)
L = 0.375” (9.5mm)
Lead Lengths
Figure 1 - Peak Pulse Power Rating Curve Figure 2 - Pulse Derating Curve
Figure 3 - Pulse Waveform Figure 4 - Typical Junction Capacitance
Figure 5 - Steady State Power Derating Curve
0
20
40
60
80
100
120
140
160
180
200
1 10 100
Number of Cycles at 60 Hz
IFSM - Peak Forward Surge Current (A)
Figure 6 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
Revised: August 30, 2009 9:24 AM
©2009 Littelfuse, Inc.
1.5KE Automotive Series
Axial Leaded – 1500W > 1.5KE Automotive Series
Automotive Transient Voltage Suppression Diodes
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
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-B102D.
Dimensions
Dimensions Inches Millimeters
Min Max Min Max
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
D
AA
C
B
DO-201
Environmental Specifications
Temperature Cycle JESD22-A104
Pressure Cooker JESD 22-A102
High Temp. Storage JESD22-A103
HTRB JESD22-A108
Thermal Shock JESD22-A106
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
(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)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 280°C
Flow/Wave Soldering (Solder Dipping)
Peak Temperature : 265OC
Dipping Time : 10 seconds
Soldering : 1 time
©2009 Littelfuse, Inc.
Revised: August 30, 2009 9:24 AM
Axial Leaded – 1500W > 1.5KE Automotive Series
1.5KE Automotive Series
1.5KE Automotive Series
Automotive Transient Voltage Suppression Diodes
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
Part Numbering System
Packaging
Part Number Component
Package Quantity Packaging
Option Packaging Specification
1.5KExxxXXAUTO DO-201 1200 Tape & Reel EIA STD RS-296E
1.5KExxxXXAUTO-B DO-201 500 BULK Littelfuse Concord Packing Spec. DM-0016
VOLTAGE CODE
(Refer to the Electrical Characteristics table)
TYPE CODE:
A Uni-Directional (5% Voltage Tolerance)
CA Bi-Directional
OPTION CODE:
BLANK Reel Tape
-B Bulk Packaging
SERIES CODE
1.5KE xxx XX AUTO -X
Part Marking System
F
1.5KEXXX
AUTO
Product Type
Littelfuse Logo
Cathode Band
Revised: August 30, 2009 9:24 AM
©2009 Littelfuse, Inc.
