Automotive Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE Automotive Series
RoHS
1.5KE Automotive Series
Description
The 1.5KE Automotive Series is designed specifically
to protect sensitive electronic equipment from voltage
transients induced by lightning and other transient voltage
events.
Features
• Low incremental surge
resistance
• Typical I
R
less than 1μA
above 13V
ΔV
BR
= 0.1% x V
BR
@25°C x ΔT
• High temperature
soldering guaranteed:
• Glass passivated chip
260°C/40 seconds /
junction in DO-201
0.375”
,(9.5mm) lead
Package
length, 5 lbs., (2.3kg)
• 1500W peak pulse
tension
capability at 10×1000μs
waveform, repetition rate • Plastic package has
Underwriters Laboratory
(duty cycles):0.01%
Flammability classification
• Fast response time:
94V-O
typically less than 1.0ps
• Matte Tin Lead–free plated
from 0 Volts to BV min
• Excellent clamping
capability
• Halogen-Free
• RoHS compliant
• Typical maximum
temperature coefficient
Applications
TVS devices are ideal for the protection of I/O interfaces,
V
CC
bus and other vulnerable circuits used in telecom,
computer, industrial and consumer electronic applications.
AGENCY
AGENCY FILE NUMBER
E128662/E230531
Maximum Ratings and Thermal Characteristics
(T
A
=25
O
C unless otherwise noted)
Parameter
Peak Pulse Power Dissipation by
10x1000μs test waveform (Fig.1)
(Note 1)
Steady State Power Dissipation on
inifinite heat sink at T
L
=75ºC (Fig. 5)
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
only (Note 2)
Maximum Instantaneous Forward
Voltage at 100A for Unidirectional
only
Operating Junction and Storage
Temperature Range
Typical Thermal Resistance Junction
to Lead
Typical Thermal Resistance Junction
to Ambient
Symbol
P
PPM
P
D
I
FSM
V
F
T
J
, T
STG
R
uJL
R
uJA
Value
1500
6.5
200
3.5
-55 to 175
15
75
Unit
W
W
A
V
°C
°C/W
°C/W
Notes:
1. Non-repetitive current pulse , per Fig. 3 and derated above T
A
= 25
O
C per Fig. 2.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
1.5KE Automotive Series
Revised: August 30, 2009 9:24 AM
1.5KE Automotive Series
Agency Approvals
Automotive Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE Automotive Series
Electrical Characteristics
Part
Number
(Uni)
1.5KE12AAUTO
1.5KE13AAUTO
1.5KE15AAUTO
1.5KE16AAUTO
1.5KE18AAUTO
1.5KE20AAUTO
1.5KE22AAUTO
1.5KE24AAUTO
1.5KE27AAUTO
1.5KE30AAUTO
1.5KE33AAUTO
1.5KE36AAUTO
1.5KE39AAUTO
1.5KE43AAUTO
1.5KE47AAUTO
Part
Number
(Bi)
1.5KE12CAAUTO
1.5KE13CAAUTO
1.5KE15CAAUTO
1.5KE16CAAUTO
1.5KE18CAAUTO
1.5KE20CAAUTO
1.5KE22CAAUTO
1.5KE24CAAUTO
1.5KE27CAAUTO
1.5KE30CAAUTO
1.5KE33CAAUTO
1.5KE36CAAUTO
1.5KE39CAAUTO
1.5KE43CAAUTO
1.5KE47CAAUTO
Reverse
Stand off
Voltage V
R
(Volts)
10.20
11.10
12.80
13.60
15.30
17
.10
18.80
20.50
23.10
25.60
28.20
30.80
33.30
36.80
40.20
Breakdown Voltage
V
BR
(Volts) @ I
T
MIN
11.40
12.40
14.30
15.20
17
.10
19.00
20.90
22.80
25.70
28.50
31.40
34.20
37
.10
40.90
44.70
MAX
12.60
13.70
15.80
16.80
18.90
21.00
23.10
25.20
28.40
31.50
34.70
37
.80
41.00
45.20
49.40
Test
Current
I
T
(mA)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Maximum
Clamping
Voltage
V
C
@ I
pp
(Volts)
16.7
18.2
21.2
22.5
25.2
27
.7
30.6
33.2
37
.5
41.4
45.7
49.9
53.9
59.3
64.8
Maximum
Peak Pulse
Current I
pp
(A)
91.0
83.5
71.7
67
.6
60.3
54.9
49.7
45.8
40.5
36.7
33.3
30.5
28.2
25.6
23.5
Maximum
Agency
Reverse
Approval
Leakage I
R
@
V
R
(µA)
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
For parts without A, the V
BR
is +10% and V
C
is 5% higher than with A parts.
1.5KE Automotive Series
Revised: August 30, 2009 9:24 AM
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
Automotive Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE Automotive Series
Ratings and Characteristic Curves
(T =25°C unless otherwise noted)
A
Figure 1 - Peak Pulse Power Rating Curve
1000
Figure 2 - Pulse Derating Curve
100
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
P
PPM
-Peak Pulse Power (kW)
100
75
10
50
1
25
t
d
-Pulse Width (Sec.)
T
A
-Ambient Temperature (ºC)
Figure 3 - Pulse Waveform
150
I
PPM
- Peak Pulse Current, % I
RSM
tr=10µsec
Peak Value
IPPM
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
Figure 4 - Typical Junction Capacitance
100000
10000
1000
100
Bi-directional @ V
R
Bi-directional V=0V
Uni-directional V=0V
100
Half Value
IPPM
IPPM
2
( )
10/1000µsec. Waveform
as defined by R.E.A
50
Cj (pF)
Uni-directional @ V
R
10
0
td
0
1.0
2.0
t-Time (ms)
3.0
4.0
1
1.0
Tj=25C
f=1.0MHz
Vsig=50mVp-p
10.0
100.0
1000.0
V
BR
- Reverse Breakdown Voltage (V)
Figure 5 - Steady State Power Derating Curve
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0
Figure 6 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
200
I
FSM
- Peak Forward Surge Current (A)
180
160
140
120
100
80
60
40
20
0
1
10
Number of Cycles at 60 Hz
100
Steady State Power Dissipation (W)
L = 0.375” (9.5mm)
Lead Lengths
25
50
75
100
125
150
175
200
T
L
- Lead Temperature(ºC)
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
1.5KE Automotive Series
Revised: August 30, 2009 9:24 AM
1.5KE Automotive Series
0.1
0.000001
0
0.00001
0.0001
0.001
0
25
50
75
100
125 150
175
200
Automotive Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE Automotive Series
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus Temp
(T
L
) to peak
T
S(max)
to T
L
- Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Time (min to max) (t
s
)
Lead–free assembly
150°C
200°C
60 – 180 secs
3°C/second max
3°C/second max
217°C
60 – 150 seconds
260
+0/-5
°C
20 – 40 seconds
6°C/second max
8 minutes Max.
280°C
Temperature (T)
T
P
Ramp-up
t
p
Critical Zone
T
L
to T
P
T
L
T
s(max)
t
L
T
s(min)
Ramp-down
Preheat
t
s
25˚C
t 25˚C to Peak
Time (t)
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
Flow/Wave Soldering (Solder Dipping)
Peak Temperature :
Dipping Time :
Soldering :
265
O
C
10 seconds
1 time
Physical Specifications
Weight
Case
Polarity
Terminal
0.045oz., 1.2g
JEDEC DO-201 molded plastic body over
passivated junction.
Color band denotes the cathode except
Bipolar.
Matte Tin axial leads, solderable per
JESD22-B102D.
Environmental Specifications
Temperature Cycle
Pressure Cooker
High Temp. Storage
HTRB
Thermal Shock
JESD22-A104
JESD 22-A102
JESD22-A103
JESD22-A108
JESD22-A106
Dimensions
Dimensions
Inches
Min
1.000
0.285
0.038
0.190
Max
-
0.375
0.042
0.210
Millimeters
Min
25.40
7
.20
0.96
4.80
Max
-
9.50
1.07
5.30
D
C
A
B
DO-201
A
B
C
D
A
1.5KE Automotive Series
Revised: August 30, 2009 9:24 AM
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
Automotive Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE Automotive Series
Part Numbering System
1.5KE xxx XX AUTO -X
OPTION CODE:
BLANK
Reel Tape
-B
Bulk Packaging
TYPE CODE:
A
Uni-Directional (5% Voltage Tolerance)
CA
Bi-Directional
VOLTAGE CODE
(Refer to the Electrical Characteristics table)
SERIES CODE
Part Marking System
Cathode Band
F
Littelfuse Logo
Product Type
Packaging Specification
EIA STD RS-296E
1.5KEXXX
AUTO
Packaging
Part Number
1.5KExxxXXAUTO
1.5KExxxXXAUTO-B
Component
Package
DO-201
DO-201
Quantity
1200
500
Packaging
Option
Tape & Reel
BULK
Littelfuse Concord Packing Spec. DM-0016
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/1.5KEAUTO.html for current information.
1.5KE Automotive Series
Revised: August 30, 2009 9:24 AM
1.5KE Automotive Series
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