Silicon Avalanche Diodes
294 www.littelfuse.com
1500 Watt Axial Leaded Transient Voltage Suppressors
The 1.5KE Series is designed specifically to protect sensitive
electronics equipment from voltage transients induced by
lightning and other transient voltage events. These 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.
FEATURES
• RoHS Compliant
• 6.8V to 550Volts
• Uni-directional and Bi-directional
• Glass passivated chip junction in DO-201 package
• 1500W surge capability at 10/1000µs wave form
• Excellent clamping capability
• Low zener impedance to BV min.
• Typical IR less than 1µA above 10V, (9.5mm) lead length,
5lbs., (2.3kg) tension
Agency Approvals: Recognized under the Components
Program of Underwriters Laboratories.
Agency File Number: E128662
1.5KE CA
Voltage
Bi-Directional
5% Voltage To lerance
Packaging Option
B = Bulk (500 pcs)
T = Tape and reeled (1200 pcs)
ORDERING INFORMATION
®
MAXIMUM RATINGS AND CHARACTERISTICS @25˚C
AMBIENT TEMPERATURE (unless otherwise noted)
RATING
Peak Pulse Power Dissipation at
TA=25˚C, TP=1ms(Note 1)
Steady State Power Dissipation at
TL=75˚C, Lead lengths .375",
(9.5mm) (Note 2)
Superimposed on Rated Load,
(JEDEC Method) (Note 3)
Operating junction and Storage
Temperature Range
VALUE
Min
1500
6.5
200
-55 to +175
UNIT
Watts
Watts
Amps
°C
SYMBOL
PPPM
PM(AV)
IFSM
Tj, TSTG
Notes:
1. Non-repetitive current pulse, per Fig.3 and derated above TA=
25˚C per Fig.2
3. 8.3 ms single half sine-wave, or equivalent square wave, Duty
cycle= 4 pulses per minutes maximum.
Mechanical Specifications:
Weight: 0.045 ounce, 1.2 grams
Case: JEDEC DO-201 Molded plastic
Mounting Position: Any
Polarity: Color band denotes cathode
except Bipolar
Terminal: Axial leads, solderable per MIL-STD-750,
Method 2026
1.5KE Series
RoHS
Silicon Avalanche Diodes
295
www.littelfuse.com
6
SILICON DIODE
ARRAYS
1500 Watt Axial Leaded Transient Voltage Suppressors
®
Breakdown
Voltage
VBR (Volts) @ IT
Maximum
Reverse
Leakage
IR@ VR
(µA)
Maximum
Clamping
Voltage
VC@ IPP
(Volts)
Maximum
Peak Pulse
Current
IPP
(A)
ELECTRICAL SPECIFICATION @ Tamb 25°C
1.5KE6.8A 1.5KE6.8CA 5.80 6.45 7.14 10 10.5 144.8 1000
1.5KE7.5A 1.5KE7.5CA 6.40 7.13 7.88 10 11.3 134.5 500
1.5KE8.2A 1.5KE8.2CA 7.02 7.79 8.61 10 12.1 125.6 200
1.5KE9.1A 1.5KE9.1CA 7.78 8.65 9.50 1 13.4 113.4 50
1.5KE10A 1.5KE10CA 8.55 9.50 10.50 1 14.5 104.8 10
1.5KE11A 1.5KE11CA 9.40 10.50 11.60 1 15.6 97.4 5
1.5KE12A 1.5KE12CA 10.20 11.40 12.60 1 16.7 91.0 5
1.5KE13A 1.5KE13CA 11.10 12.40 13.70 1 18.2 83.5 5
1.5KE15A 1.5KE15CA 12.80 14.30 15.80 1 21.2 71.7 5
1.5KE16A 1.5KE16CA 13.60 15.20 16.80 1 22.5 67.6 5
1.5KE18A 1.5KE18CA 15.30 17.10 18.90 1 25.2 60.3 5
1.5KE20A 1.5KE20CA 17.10 19.00 21.00 1 27.7 54.9 5
1.5KE22A 1.5KE22CA 18.80 20.90 23.10 1 30.6 49.7 5
1.5KE24A 1.5KE24CA 20.50 22.80 25.20 1 33.2 45.8 5
1.5KE27A 1.5KE27CA 23.10 25.70 28.40 1 37.5 40.5 5
1.5KE30A 1.5KE30CA 25.60 28.50 31.50 1 41.4 36.7 5
1.5KE33A 1.5KE33CA 28.20 31.40 34.70 1 45.7 33.3 5
1.5KE36A 1.5KE36CA 30.80 34.20 37.80 1 49.9 30.5 5
1.5KE39A 1.5KE39CA 33.30 37.10 41.00 1 53.9 28.2 5
1.5KE43A 1.5KE43CA 36.80 40.90 45.20 1 59.3 25.6 5
1.5KE47A 1.5KE47CA 40.20 44.70 49.40 1 64.8 23.5 5
1.5KE51A 1.5KE51CA 43.60 48.50 53.60 1 70.1 21.7 5
1.5KE56A 1.5KE56CA 47.80 53.20 58.80 1 77.0 19.7 5
1.5KE62A 1.5KE62CA 53.00 58.90 65.10 1 85.0 17.9 5
1.5KE68A 1.5KE68CA 58.10 64.60 71.40 1 92.0 16.5 5
1.5KE75A 1.5KE75CA 64.10 71.30 78.80 1 103.0 14.8 5
1.5KE82A 1.5KE82CA 70.10 77.90 86.10 1 113.0 13.5 5
1.5KE91A 1.5KE91CA 77.80 86.50 95.50 1 125.0 12.2 5
1.5KE100A 1.5KE100CA 85.50 95.00 105.00 1 137.0 11.1 5
1.5KE110A 1.5KE110CA 94.00 105.00 116.00 1 152.0 10.0 5
1.5KE120A 1.5KE120CA 102.00 114.00 126.00 1 165.0 9.2 5
1.5KE130A 1.5KE130CA 111.00 124.00 137.00 1 179.0 8.5 5
1.5KE150A 1.5KE150CA 128.00 143.00 158.00 1 207.0 7.3 5
1.5KE160A 1.5KE160CA 136.00 152.00 168.00 1 219.0 6.9 5
1.5KE170A 1.5KE170CA 145.00 162.00 179.00 1 234.0 6.5 5
1.5KE180A 1.5KE180CA 154.00 171.00 189.00 1 246.0 6.2 5
1.5KE200A 1.5KE200CA 171.00 190.00 210.00 1 274.0 5.5 5
1.5KE220A 1.5KE220CA 185.00 209.00 231.00 1 328.0 4.6 5
1.5KE250A 1.5KE250CA 214.00 237.00 263.00 1 344.0 4.4 5
1.5KE300A 1.5KE300CA 256.00 285.00 315.00 1 414.0 3.7 5
1.5KE350A 1.5KE350CA 300.00 332.00 368.00 1 482.0 3.2 5
1.5KE400A 1.5KE400CA 342.00 380.00 420.00 1 548.0 2.8 5
1.5KE440A 1.5KE440CA 376.00 418.00 462.00 1 602.0 2.5 5
1.5KE480A 1.5KE480CA 408.00 456.00 504.00 1 658.0 2.3 5
1.5KE510A 1.5KE510CA 434.00 485.00 535.00 1 698.0 2.1 5
1.5KE530A 1.5KE530CA 450.00 503.50 556.50 1 725.0 2.1 5
1.5KE540A 1.5KE540CA 459.00 513.00 567.00 1 740.0 2.0 5
1.5KE550A 1.5KE550CA 467.00 522.50 577.50 1 760.0 2.0 5
Reverse
Stand off
Voltage
VR
(Volts)
For bidirectional type having Vrwm of 10 volts and less, the IR limit is double.
For parts without A , the VBR is + 10%
Test
Current
IT(mA)
MIN MAX
Part
Numbers
Uni-Polar Bi-Polar
1.5KE Series
RoHS
Silicon Avalanche Diodes
296 www.littelfuse.com
1500 Watt Axial Leaded Transient Voltage Suppressors
®
Fig. 1 Peak Pulse Power Rating Curve
Fig. 2 Pulse Derating Curve
Fig. 3 Pulse Waveform
IPPM- Peak Pulse Current, % I RSM
0
0
50
100
150
1.0 2.0 3.0 4.0
tr=10µsec
Peak Value
IPPM
Half Value 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)
Fig. 4- Typical Junction Capacitance
CJ-Capacitance(pF)
510
10
100
1000
10000
100 500
VWM-Reverse Stand-Off Voltage (V)
Fig. 6- Maximum Non-Repetitive Forward
Surge Current Uni-Directional Only
IFSM-Peak Forward Surge Current (A)
200
100
10 110 100
Number of Cylces at 60HZ
8.3 Single Half Sine Wave
(JEDEC Method) TJ=TJmax
Fig. 5 Steady State Power
Derating Curve
TL- Lead Temperature (˚C)
Steady State Power Dissipation (W)
0
025
1.0
50
2.0
75
3.0
100
4.0
5.0
6.0
7.0
8.0
125 150 175 200
L=0.375(9.5mm)
Lead Lengths
1.6x1.6x.040"
(40x40x1mm)
Copper Heat Sinks
PPPM- Peak Pulse Power (kW)
0.1s 1.0s 10s 100s
1.0ms 10ms
0.1
1
10
100
td- Pulse Width (sec.) TA- Ambient Temperature (˚C)
Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage, %
0
025
25
50
50
75
75
100
100
125 150 175 200
60Hz
Resistive or
Inductive Load
Unidirectional
Bidirectional
VR=Rated
Stand-off Voltage
f=1MHz
Vsig=50mVp-p
TJ=25˚C
VR=0
Ratings and Characteristic Curves TA=25˚C unless otherwise noted
1.5KE Series
RoHS
Silicon Avalanche Diodes
297
www.littelfuse.com
6
SILICON DIODE
ARRAYS
1500 Watt Axial Leaded Transient Voltage Suppressors
®
Outline Dimensions
0.210 (5.3)
0.190 (4.8)
DIA.
1.0 (25.4)
MIN.
0.375 (9.5)
0.285 (7.2)
1.0 (25.4)
MIN.
0.042 (1.07)
0.038 (0.96)
DIA.
Case Style 1.5KE
(DO-201)
Dimensions in inches and (millimeters)
1.5KE Series
RoHS
