1www.littelfuse.com
1.5KE6.8 - 1.5KE440CA series
22
1500 WATT AXIAL TRANSIENT VOLTAGE SUPPRESSORS
Protect sensitive electronics against voltage transients induced by inductive load
switching and lightning. Ideal for the protection of I/O interfaces, Vcc bus, and other
integrated circuits used in telecom, computer, datacom and industrial electronics.
FEATURES
●Breakdown voltage range 6.8 to 440 Volts
●Uni-directional and Bi-directional
●Glass passivated junction
●Low clamping factor
●100% surge tested
●UL recognised
MAXIMUM RATING
●Peak Pulse Power (Ppk): 1500 Watts (10 x 1000µs)@25°C
(see diagram on page 6 for wave form)
●5 watt steady state
●Response time: 1 x 10-12 seconds (theoretical)
●Forward surge rating: 200 Amps, 8.3ms half sine wave,
(uni-directional devices only)
●Operating & storage temperature: -55°C to +150°C
MECHANICAL CHARACTERISTICS
●Case: DO-201AD: Moulded plastic over glass passivated junction
●Terminals: Axial leads, solderable per MIL-STD-202 Method 208
●Solderable leads = 230°C for 10 seconds (1.59mm from case)
●Marking: cathode band, (positive terminal, uni-directional devices only),
device code, logo
●Weight: 1.5 grammes (approx)
Min 25.4
4.826
5.207
Min 25.4
All di i i
9.155
9.527
0.966 - 1.066
1.5KE CA
Voltage
Bi-Directional
5% Voltage Tolerance
Packaging Option
B = Bulk (500 pcs)
T = Tape and reeled (1500 pcs)
ORDERING INFORMATION
All dimensions in mm
23
www.littelfuse.com
1.5KE6.8 - 1.5KE440CA series
10000
1000
100
10
Cj (pf)
● STAND-OFF VOLTAGE
Uni-directional
Bi-directional
1 10 100 1000
Device Stand-off Voltage - Volts
100
10
1
0.1 1µs10µs 100µ1ms 10ms
Pulse Time (tp)
Peak Pulse Power - Pp (kW)
Exponential wave-form
Square wave-pulse
s
100ns
Figure 3 - Capacitance vs. Stand-off Voltage Figure 4 - Peak Pulse Power vs. P ulse Time
0°C50°C 100°C 150°C 200°C
Tamb °C
Percentage peak pulse power plotted against ambient temperature
100%
50%
0
Permissable
area of
operation
0°C50°C 100°C 150°C 200°C
Tamb °C
Continuous d.c. Power dissipation plotted against junction temperature
W
1.0
0.75
0.50
0.25
0
Permissable
area of
operation
Figure 2 - Continuous D.C. Power Derating Curve
Continuous d.c. power dissipation
Figure 1 - Peak Power Derating Curve
Peak pulse power in percent of 25ºC rating
www.littelfuse.com 19
1.5KE6.8*
1.5KE6.8A*
1.5KE7.5
1.5KE7.5A
1.5KE8.2
1.5KE8.2A
1.5KE9.1
1.5KE9.1A
1.5KE10
1.5KE10A
1.5KE11
1.5KE11A
1.5KE12
1.5KE12A
1.5KE13
1.5KE13A
1.5KE15
1.5KE15A
1.5KE16
1.5KE16A
1.5KE18*
1.5KE18A*
1.5KE20*
1.5KE20A*
1.5KE22
1.5KE22A
1.5KE24*
1.5KE24A*
1.5KE27*
1.5KE27A*
1.5KE30
1.5KE30A
1.5KE33*
1.5KE33A*
1.5KE36
1.5KE36A
1.5KE39*
1.5KE39A*
1.5KE43
1.5KE43A
1.5KE47
1.5KE47A
1.5KE51*
1.5KE51A
Part
Number
(Uni)
Part
Number
(Bi)
1.5KE6.8C*
1.5KE6.8CA*
1.5KE7.5C
1.5KE7.5CA
1.5KE8.2C
1.5KE8.2CA
1.5KE9.1C
1.5KE9.1CA
1.5KE10C
1.5KE10CA
1.5KE11C
1.5KE11CA
1.5KE12C
1.5KE12CA
1.5KE13C
1.5KE13CA
1.5KE15C*
1.5KE15CA*
1.5KE16C
1.5KE16CA
1.5KE18C*
1.5KE18CA*
1.5KE20C
1.5KE20CA
1.5KE22C
1.5KE22CA
1.5KE24C*
1.5KE24CA*
1.5KE27C*
1.5KE27CA*
1.5KE30C
1.5KE30CA
1.5KE33C
1.5KE33CA
1.5KE36C
1.5KE36CA
1.5KE39C
1.5KE39CA
1.5KE43C
1.5KE43CA
1.5KE47C
1.5KE47CA
1.5KE51C
1.5KE51CA
Reverse
Stand off
Voltage
VR
(Volts)
5.50
5.80
6.05
6.40
6.63
7.02
7.37
7.78
8.10
8.55
8.92
9.40
9.72
10.20
10.50
11.10
12.10
12.80
12.90
13.60
14.50
15.30
16.20
17.10
17.80
18.80
19.40
20.50
21.80
23.10
24.30
25.60
26.80
28.20
29.10
30.80
31.60
33.30
34.80
36.80
38.10
40.20
41.30
43.60
Breakdown
Voltage
VBR (Volts) @ IT
MIN
6.12
6.45
6.75
7.13
7.38
7.79
8.19
8.60
9.00
9.50
9.90
10.50
10.80
11.40
11.70
12.40
13.50
14.30
14.40
15.20
16.20
17.10
18.00
19.00
19.80
20.90
21.60
22.80
24.30
25.70
27.00
28.50
29.70
31.40
32.40
34.20
35.10
37.10
38.70
40.90
42.30
44.70
45.90
48.50
MAX
7.48
7.14
8.25
7.88
9.02
8.61
10.00
9.55
11.00
10.50
12.10
11.60
13.20
12.60
14.30
13.70
16.50
15.80
17.60
16.80
19.80
18.90
22.00
21.00
24.20
23.10
26.40
25.20
29.70
28.40
33.00
31.50
36.30
34.70
39.60
37.80
42.90
41.00
47.30
45.20
51.70
49.40
56.10
53.60
mA
10.0
10.0
10.0
10.0
10.0
10.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Maximum
Reverse
Leakage
IR@ VR
(µA)
1000.0
1000.0
500.0
500.0
200.0
200.0
50.0
50.0
10.0
10.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Maximum
Clamping
Voltage
VC@ IPP
(Volts)
10.8
10.5
11.7
11.3
12.5
12.1
13.8
13.4
15.0
14.5
16.2
15.6
17.3
16.7
19.0
18.2
22.0
21.2
23.5
22.5
26.5
25.2
29.1
27.7
31.9
30.6
34.7
33.2
39.1
37.5
43.5
41.4
47.7
45.7
52.0
49.9
56.4
53.9
61.9
59.3
67.8
64.8
73.5
70.1
Maximum
Peak Pulse
Current
IPP
(A)
139.0
143.0
128.0
132.0
120.0
124.0
109.0
112.0
100.0
103.0
93.0
96.0
87.0
90.0
79.0
82.0
68.0
71.0
64.0
67.0
56.5
59.5
51.5
54.0
47.0
49.0
43.0
45.0
38.5
40.0
34.5
36.0
31.5
33.0
29.0
30.0
26.5
28.0
24.0
25.3
22.2
23.2
20.4
21.4
Suffix ‘C’ denotes Bi-directional device. Suffix ‘A’ denotes 5% tolerance device, no suffix denotes a 10% tolerance device.
1. For Bi-directional devices having VRof 10 volts and below, the IRlimit is doubled.
2. VF= 3.5 Volts max. for devices of VR<100v, and VF= 5.0 Volts max for devices of VR>100V. IF= 100A, 300 µS square wave.
* Preferred voltages.
Max
Voltage
Temperature
Variation
of VBR (%/°C)
0.057
0.057
0.061
0.061
0.065
0.065
0.068
0.068
0.073
0.073
0.075
0.075
0.078
0.078
0.081
0.081
0.084
0.084
0.086
0.086
0.088
0.088
0.090
0.090
0.092
0.092
0.094
0.094
0.096
0.096
0.097
0.097
0.098
0.098
0.099
0.099
0.100
0.100
0.101
0.101
0.101
0.101
0.102
0.102
1.5KE6.8 - 1.5KE440CA series
ELECTRICAL SPECIFICATION @ Tamb 25°C
1www.littelfuse.com
1.5KE6.8 - 1.5KE440CA series
20
1.5KE56
1.5KE56A
1.5KE62
1.5KE62A
1.5KE68
1.5KE68A
1.5KE75
1.5KE75A
1.5KE82
1.5KE82A
1.5KE91
1.5KE91A
1.5KE100
1.5KE100A
1.5KE110
1.5KE110A
1.5KE120*
1.5KE120A*
1.5KE130
1.5KE130A
1.5KE150
1.5KE150A
1.5KE160
1.5KE160A
1.5KE170
1.5KE170A
1.5KE180
1.5KE180A
1.5KE200*
1.5KE200A*
1.5KE220
1.5KE220A
1.5KE250
1.5KE250A
1.5KE300
1.5KE300A
1.5KE350*
1.5KE350A*
1.5KE400
1.5KE400A
1.5KE440
1.5KE440A
Part
Number
(Uni)
Part
Number
(Bi)
1.5KE56C
1.5KE56CA
1.5KE62C
1.5KE62CA
1.5KE68C
1.5KE68CA
1.5KE75C*
1.5KE75CA*
1.5KE82C
1.5KE82CA
1.5KE91C
1.5KE91CA
1.5KE100C
1.5KE100CA
1.5KE110C
1.5KE110CA
1.5KE120C*
1.5KE120CA*
1.5KE130C
1.5KE130CA
1.5KE150C
1.5KE150CA
1.5KE160CC
1.5KE160CA
1.5KE170C
1.5KE170CA
1.5KE180C
1.5KE180CA
1.5KE200C*
1.5KE200CA*
1.5KE220C
1.5KE220CA
1.5KE250C
1.5KE250CA
1.5KE300C*
1.5KE300CA*
1.5KE350C
1.5KE350CA
1.5KE400C*
1.5KE400CA*
1.5KE440C
1.5KE440CA
Reverse
Stand off
Voltage
VR
(Volts)
45.4
47.8
50.2
53.0
55.1
58.1
60.7
64.1
66.4
70.1
73.7
77.8
81.0
85.5
89.2
94.0
97.2
102.0
105.0
111.0
121.0
128.0
130.0
136.0
138.0
145.0
146.0
154.0
162.0
171.0
175.0
185.0
202.0
214.0
243.0
256.0
284.0
300.0
324.0
342.0
356.0
376.0
Breakdown
Voltage
VBR (Volts) @ IT
MIN
50.40
53.20
55.80
58.90
61.20
64.60
67.50
71.30
73.80
77.90
81.90
86.50
90.00
95.00
99.00
105.00
108.00
114.00
117.00
124.00
135.00
143.00
144.00
152.00
153.00
162.00
162.00
171.00
180.00
190.00
198.00
209.00
225.00
237.00
270.00
285.00
315.00
332.00
360.00
380.00
396.00
418.00
MAX
61.60
58.80
68.20
65.10
74.80
71.40
82.50
78.80
90.20
86.10
100.00
95.50
110.00
105.00
121.00
116.00
132.00
126.00
143.00
137.00
165.00
158.00
176.00
168.00
187.00
179.00
198.00
189.00
220.00
210.00
242.00
231.00
275.00
263.00
330.00
315.00
385.00
368.00
440.00
420.00
484.00
462.00
(mA)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Maximum
Reverse
Leakage
IR@ VR
(µA)
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
Maximum
Clamping
Voltage
VC@ IPP
(Volts)
80.5
77.0
89.0
85.0
98.0
92.0
108.0
103.0
118.0
113.0
131.0
125.0
144.0
137.0
158.0
152.0
173.0
165.0
187.0
179.0
215.0
207.0
230.0
219.0
244.0
234.0
258.0
246.0
287.0
274.0
344.0
328.0
360.0
344.0
430.0
414.0
504.0
482.0
574.0
548.0
631.0
602.0
Maximum
Peak Pulse
Current
IPP
(A)
18.6
19.5
16.9
17.7
15.3
16.3
13.9
14.6
12.7
13.3
11.4
12.0
10.4
11.0
9.5
9.9
8.7
9.1
8.0
8.4
7.0
7.2
6.5
6.8
6.2
6.4
5.8
6.1
5.2
5.5
4.3
4.6
5.0
4.4
3.5
3.6
3.0
3.1
2.6
2.8
2.4
2.5
Suffix ‘C’ denotes Bi-directional device. Suffix ‘A’ denotes 5% tolerance device, no suffix denotes a 10% tolerance device.
1. For Bi-directional devices having VRof 10 volts and below, the IRlimit is doubled.
2. VF= 3.5 Volts max. for devices of VR<100v, and VF= 5.0 Volts max for devices of VR>100V. IF= 100A, 300 µS square wave.
* Preferred voltages.
Max
Voltage
Temperature
Variation
of VBR (%/°C)
0.103
0.103
0.104
0.104
0.104
0.104
0.105
0.105
0.105
0.105
0.106
0.106
0.106
0.106
0.107
0.107
0.107
0.107
0.107
0.107
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.108
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
0.110
ELECTRICAL SPECIFICATION @ Tamb 25°C