Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
RoHS
1.5KE Series
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
resistance
less than 1μA
R
above 13V
soldering guaranteed:
260°C/40 seconds /
0.375”
,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
Underwriters Laboratory
Flammability classification
94V-O
temperature coefficient
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E128662/E230531
ΔV
BR
= 0.1% x V
BR
@25°C x ΔT
junction in DO-201
Package
capability at 10×1000μs
waveform, repetition rate
(duty cycles):0.01%
typically less than 1.0ps
from 0 Volts to BV min
capability
Applications
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 (Note 3)
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
3.5/5.0
-55 to 175
15
75
Unit
W
W
A
V
°C
°C/W
°C/W
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.
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.
3. V
F
<3.5V for devices of V
BR
<
200V and V
F
<5.0V for devices of V
BR
>
201V.
_
_
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.Littelfuse.com/series/1.5KE.html for current information.
87
Revision: January 09, 2009
1.5KE Series
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Electrical Characteristics
Part
Number
(Uni)
1.5KE6.8A
1.5KE7
.5A
1.5KE8.2A
1.5KE9.1A
1.5KE10A
1.5KE11A
1.5KE12A
1.5KE13A
1.5KE15A
1.5KE16A
1.5KE18A
1.5KE20A
1.5KE22A
1.5KE24A
1.5KE27A
1.5KE30A
1.5KE33A
1.5KE36A
1.5KE39A
1.5KE43A
1.5KE47A
1.5KE51A
1.5KE56A
1.5KE62A
1.5KE68A
1.5KE75A
1.5KE82A
1.5KE91A
1.5KE100A
1.5KE110A
1.5KE120A
1.5KE130A
1.5KE150A
1.5KE160A
1.5KE170A
1.5KE180A
1.5KE200A
1.5KE220A
1.5KE250A
1.5KE300A
1.5KE350A
1.5KE400A
1.5KE440A
1.5KE480A
1.5KE510A
1.5KE530A
1.5KE540A
1.5KE550A
Part
Number
(Bi)
1.5KE6.8CA
1.5KE7
.5CA
1.5KE8.2CA
1.5KE9.1CA
1.5KE10CA
1.5KE11CA
1.5KE12CA
1.5KE13CA
1.5KE15CA
1.5KE16CA
1.5KE18CA
1.5KE20CA
1.5KE22CA
1.5KE24CA
1.5KE27CA
1.5KE30CA
1.5KE33CA
1.5KE36CA
1.5KE39CA
1.5KE43CA
1.5KE47CA
1.5KE51CA
1.5KE56CA
1.5KE62CA
1.5KE68CA
1.5KE75CA
1.5KE82CA
1.5KE91CA
1.5KE100CA
1.5KE110CA
1.5KE120CA
1.5KE130CA
1.5KE150CA
1.5KE160CA
1.5KE170CA
1.5KE180CA
1.5KE200CA
1.5KE220CA
1.5KE250CA
1.5KE300CA
1.5KE350CA
1.5KE400CA
1.5KE440CA
1.5KE480CA
1.5KE510CA
1.5KE530CA
1.5KE540CA
1.5KE550CA
Reverse
Stand off
Voltage V
R
(Volts)
5.80
6.40
7
.02
7
.78
8.55
9.40
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
43.60
47
.80
53.00
58.10
64.10
70.10
77
.80
85.50
94.00
102.00
111.00
128.00
136.00
145.00
154.00
171.00
185.00
214.00
256.00
300.00
342.00
376.00
408.00
434.00
477
.00
459.00
495.00
Breakdown Voltage
V
BR
(Volts) @ I
T
MIN
6.45
7
.13
7
.79
8.65
9.50
10.50
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
48.50
53.20
58.90
64.60
71.30
77
.90
86.50
95.00
105.00
114.00
124.00
143.00
152.00
162.00
171.00
190.00
209.00
237
.00
285.00
332.00
380.00
418.00
456.00
485.00
503.50
513.00
522.50
MAX
7
.14
7
.88
8.61
9.50
10.50
11.60
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
53.60
58.80
65.10
71.40
78.80
86.10
95.50
105.00
116.00
126.00
137
.00
158.00
168.00
179.00
189.00
210.00
231.00
263.00
315.00
368.00
420.00
462.00
504.00
535.00
556.50
567
.00
577
.50
Test
Current
I
T
(mA)
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Maximum
Clamping
Voltage
V
C
@ I
pp
(Volts)
10.5
11.3
12.1
13.4
14.5
15.6
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
70.1
77
.0
85.0
92.0
103.0
113.0
125.0
137
.0
152.0
165.0
179.0
207
.0
219.0
234.0
246.0
274.0
328.0
344.0
414.0
482.0
548.0
602.0
658.0
698.0
725.0
740.0
760.0
Maximum
Peak Pulse
Current I
pp
(A)
144.8
134.5
125.6
113.4
104.8
97
.4
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
21.7
19.7
17
.9
16.5
14.8
13.5
12.2
11.1
10.0
9.2
8.5
7
.3
6.9
6.5
6.2
5.5
4.6
4.4
3.7
3.2
2.8
2.5
2.3
2.1
2.1
2.0
2.0
Maximum
Agency
Reverse
Approval
Leakage I
R
@
V
R
(μA)
1000
500
200
50
10
5
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
For bidirectional type having V
R
of 10 volts and less, the I
R
limit is double.
For parts without A, the V
BR
is +10% and V
C
is 5% higher than with A parts.
1.5KE Series
88
Revision: January 09, 2009
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.Littelfuse.com/series/1.5KE.html for current information.
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE 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
0.1
0.000001
0
0.00001
0.0001
0.001
0
25
50
75
100
125 150
175
200
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
Bi-directional V=0V
Uni-directional V=0V
10000
100
Cj (pF)
1000
Uni-directional @ V
R
Half Value
IPPM
IPPM
2
( )
10/1000μsec. Waveform
as defined by R.E.A
100
Bi-directional @ V
R
50
10
0
td
Tj=25C
f=1.0MHz
Vsig=50mVp-p
0
1.0
2.0
t-Time (ms)
3.0
4.0
1
1.0
10.0
100.0
1000.0
V
BR
- Reverse Breakdown Voltage (V)
Figure 5 - Steady State Power Derating Curve
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
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0
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 http://www.Littelfuse.com/series/1.5KE.html for current information.
89
Revision: January 09, 2009
1.5KE Series
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Soldering Parameters
Reflow Condition
T
P
t
p
Ramp-up
Critical Zone
T
L
to T
P
- 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
)
150°C
200°C
Temperature (T)
T
L
T
s(max)
t
L
3°C/second max
3°C/second max
217°C
260
+0/-5
°C
Ramp-down
T
s(min)
t
s
Preheat
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)
6°C/second max
8 minutes Max.
280°C
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 Series
90
Revision: January 09, 2009
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.Littelfuse.com/series/1.5KE.html for current information.
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Part Numbering System
1.5KE xxx XX 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
1.5KEXXX
F
Littelfuse Logo
Product Type
Packaging
Part Number
1.5KExxxXX
1.5KExxxXX-B
Component
Package
DO-201
DO-201
Quantity
1200
500
Packaging
Option
Tape & Reel
BULK
Packaging Specification
EIA STD RS-296E
Littelfuse Concord Packing Spec. DM-0016
©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.Littelfuse.com/series/1.5KE.html for current information.
91
Revision: January 09, 2009
1.5KE Series
FPGA/CPLD
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