Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
1.5KE Series
Description
Uni-directional
RoHS
The 1.5KE Series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Features
Bi-directional
•
V
BR
@T
J
= V
BR
@25°C × (1+
α
T
x (T
J
- 25))
(αT: Temperature Coefficient)
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E128662/E230531
Maximum Ratings and Thermal Characteristics
(T
A
=25°C unless otherwise noted)
Parameter
Peak Pulse Power Dissipation by
10/1000μs Test Waveform (Fig.2)
(Note 1)
Steady State Power Dissipation on
Inifinite Heat Sink at T
L
=75ºC (Fig. 6)
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 150
15
75
Unit
W
W
A
V
°C
°C/W
°C/W
• 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
• 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
15kV(Air), 8kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2 (IEC801-2)
• EFT protection of data
lines in accordance with
IEC 61000-4-4 (IEC801-4)
• Low incremental surge
resistance
• Typical I
R
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
• Halogen free and RoHS
compliant
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.
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T
A
= 25°C per Fig. 3.
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.
Functional Diagram
Additional Information
Bi-directional
Datasheet
Resources
Samples
Cathode
Uni-directional
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Anode
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Electrical Characteristics
(T
A
=25°C unless otherwise noted)
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
1.5KE320A
1.5KE350A
1.5KE400A
1.5KE440A
1.5KE480A
1.5KE510A
1.5KE530A
1.5KE540A
1.5KE550A
1.5KE600A
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
1.5KE320CA
1.5KE350CA
1.5KE400CA
1.5KE440CA
1.5KE480CA
1.5KE510CA
1.5KE530CA
1.5KE540CA
1.5KE550CA
1.5KE600CA
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
273.00
300.00
342.00
376.00
408.00
434.00
477
.00
486.00
495.00
512.00
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
304.00
332.00
380.00
418.00
456.00
485.00
503.50
513.00
522.50
570.00
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
336.00
368.00
420.00
462.00
504.00
535.00
556.50
567
.00
577
.50
630.00
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
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
441.0
482.0
548.0
602.0
658.0
698.0
725.0
740.0
760.0
828.0
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
3.5
3.2
2.8
2.5
2.3
2.1
2.1
2.0
2.0
1.8
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
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
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.
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
I-V Curve Characteristics
Uni-directional
Bi-directional
I
pp
Vc V
BR
V
R
I
R
V
F
I
T
V
Vc V
BR
V
R
I
T
I
R
I
R
I
T
V
R
V
BR
Vc
V
I
pp
I
pp
P
PPM
V
R
V
BR
V
C
I
R
V
F
Peak Pulse Power Dissipation
-- Max power dissipation
Stand-off Voltage
-- Maximum voltage that can be applied to the TVS without operation
Breakdown Voltage
-- Maximum voltage that flows though the TVS at a specified test current (I
T
)
Clamping Voltage
-- Peak voltage measured across the suppressor at a specified Ippm (peak impulse current)
Reverse Leakage Current
-- Current measured at V
R
Forward Voltage Drop for Uni-directional
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted)
Figure 1 - TVS Transients Clamping Waveform
Voltage Transients
Figure 2 - Peak Pulse Power Rating
1000
P
PPM
-Peak Pulse Power (kW)
Voltage Across TVS
Voltage or Current
100
Current Through TVS
10
1
0.1
0.000001
Time
0.00001
0.0001
0.001
t
d
-Pulse Width (Sec.)
continues on next page.
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
P6KE Series
P6KE Series
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Ratings and Characteristic Curves
(T
A
=25°C unless otherwise noted)
(Continued)
Figure 3 - Pulse Derating Curve
100
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
80
60
40
20
0
I
PPM
- Peak Pulse Current, % I
RSM
Figure 4 - Pulse Waveform
150
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
100
Half Value
IPPM
IPPM
2
( )
10/1000µsec. Waveform
as defined by R.E.A
50
0
25
50
75
100
125
150
175
0
td
T
A
-Ambient temperature (ºC)
0
1.0
2.0
t-Time (ms)
3.0
4.0
Figure 5 - Typical Junction Capacitance
100000
10000
1000
100
Bi-directional @ V
R
Bi-directional V=0V
Uni-directional V=0V
Figure 6 - 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
Cj (pF)
Uni-directional @ V
R
Steady State Power Dissipation (W)
10
1
1.0
Tj=25C
f=1.0MHz
Vsig=50mVp-p
L = 0.375” (9.5mm)
Lead Lengths
10.0
100.0
1000.0
V
BR
- Reverse Breakdown Voltage (V)
25
50
75
100
125
150
175
200
T
L
- Lead Temperature(ºC)
Figure 7 - 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
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE 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-B102.
Environmental Specifications
High Temp. Storage
HTRB
Temperature Cycling
H3TRB
RSH
JESD22-A103
JESD22-A108
JESD22-A104
JESD22-A101
JESD22-B106
Dimensions
Cathode Band
(for Uni-directional products only)
Dimensions
A
B
C
D
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
A
C
B
DO-201
A
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
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