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1.5KA6.8 THRU 1.5KA43A
AUTOMOTIVE TRANSIENT VOLTAGE SUPPRESSOR
Breakdown Voltage - 6.8 to 43 Volts Peak Pulse Power - 1500 Watts
Case Style 1.5KA
0.210 (5.3)
0.190 (4.8)
DIA.
1.0 (25.4)
MIN.
0.375 (9.5)
0.285 (7.2)
0.042 (1.07)
0.038 (0.96)
DIA.
1.0 (25.4)
MIN.
Dimensions in inches and (millimeters)
*Patent #’s 4,980,315
5,166,769
5,278,094
Available in uni-directional only
FEATURES
Designed for under the hood applications
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
1500W peak pulse power surge capability with a
10/1000µs waveform, repetition rate (duty cycle): 0.01%
Exclusive patented PAR™ oxide passivated
chip construction
Excellent clamping capability
Low incremental surge resistance
Fast response time: typically less
than 1.0 ps from 0 Volts to V(BR) for uni-directional
For devices with V(BR)10V ID are typically less than
1.0µA at TA=150°C
High temperature soldering guaranteed:
300°C/10 seconds, 0.375" (9.5mm) lead length,
5lbs. (2.3 kg) tension
MECHANICAL DATA
Case: Molded plastic over passivated junction
Terminals: Solder plated axial leads, solderable per
MIL-STD-750, Method 2026
Polarity: Color band denotes positive end (cathode)
Mounting Position: Any
Weight: 0.045 ounce, 1.2 grams
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Peak pulse power dissipation with a 10/1000µs waveform
(NOTE 1, FIG. 1)
Peak pulse current at TA=25°C with a 10/1000µs waveform
(NOTE 1, FIG. 3)
Steady state power dissipation at TL=75°C
lead lengths 0.375” (9.5mm) (NOTE 2)
Peak forward surge current, 8.3ms single half
Sine-wave superimposed on rated load
(JEDEC Method) (NOTE 3)
Maximum instantaneous forward voltage at 100A (NOTE 3)
Operating junction and storage temperature range
SYMBOL
PPPM
IPPM
PM(AV)
IFSM
VF
TJ, TSTG
VALUE
Minimum 1500
SEE TABLE 1
5.0
200
3.5
-65 to +185
UNITS
Watts
Amps
Watts
Amps
Volts
°C
NOTES:
(1) Non-repetitive current pulse, per Fig. 3 and derated above TA=25°C per Fig. 2
(2) Mounted on copper pad area of 0.8 x 0.8” (20 x 20mm) per Fig. 5
(3) 8.3ms single half sine-wave or equivalent square wave, duty cycle=4 pulses per minutes maximum
1/27/99

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ELECTRICAL CHARACTERISTICS at (TA=25°C unless otherwise noted) TABLE 1
Device Type
1.5KA6.8
Breakdown Voltage
V(BR)
Volts (NOTE 1)
MIN MAX
6.12 7.48
Test
Current
at IT
(mA)
10
Stand-off
Voltage
VWM
(Volts)
Maximum
Reverse
Leakage
at VWM
ID (µA)
TJ=150°C
Maximum
Reverse
Leakage
at VWM
ID (µA)
Peak Pulse
Current
IPPM
(NOTE 2)
(Amps)
Maximum
Clamping
Voltage at lPPM
VC (Volts)
Maximum
Temperature
Coefficient
of
V(BR)
(% / °C)
5.50
1000
10000
139
10.8
0.057
1.5KA6.8A
6.45 7.14
10
5.80
1000
10000
143
10.5
0.057
1.5KA7.5
6.75 8.25
10
6.05
500
5000
128
11.7
0.061
1.5KA7.5A
7.13 7.88
10
6.40
500
5000
133
11.3
0.061
1.5KA8.2
7.38 9.02
10
6.63
200
2000
120
12.5
0.065
1.5KA8.2A
7.79 8.61
10
7.02
200
2000
124
12.1
0.065
1.5KA9.1
8.19 10.0 1.0 7.37 50 500 109 13.8 0.068
1.5KA9.1A
8.65 9.55
1.0 7.78 50 500 112
13.4
0.068
1.5KA10
9.00 11.0
1.0 8.10 20 200 100
15.0
0.073
1.5KA10A 9.50 10.5 1.0 8.55 20 200 103 14.5 0.073
1.5KA11
9.90 12.1 1.0 8.92 5.0 50 92.6 16.2 0.075
1.5KA11A
10.5 11.6
1.0 9.40 5.0 50 96.2
15.6
0.076
1.5KA12
10.8 13.2 1.0 9.72 2.0 10 86.7 17.3 0.076
1.5KA12A
11.4 12.6 1.0 10.2 2.0 10 89.8
16.7
0.078
1.5KA13
11.7 14.3 1.0 10.5 2.0 10 78.9 19.0 0.081
1.5KA13A 12.4 13.7 1.0 11.1 2.0 10 82.4 18.2 0.081
1.5KA15
13.5 16.3 1.0 12.1 2.0 10 68.2 22.0 0.084
1.5KA15A 14.3 15.8 1.0 12.8 2.0 10 70.8 21.2 0.084
1.5KA16
14.4 17.6 1.0 12.9 2.0 10 63.8 23.5 0.086
1.5KA16A 15.2 16.8 1.0 13.6 2.0 10 66.7 22.5 0.086
1.5KA18
16.2 19.8 1.0 14.5 2.0 10 56.6 26.5 0.088

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ELECTRICAL CHARACTERISTICS at (TA=25°C unless otherwise noted) TABLE 1 (Cont’d)
Device Type
1.5KA18A
Breakdown Voltage
V(BR)
Volts (NOTE 1)
MIN MAX
17.1 18.9
Test
Current
at IT
(mA)
1.0
Stand-off
Voltage
VWM
(Volts)
Maximum
Reverse
Leakage
at VWM
ID (µA)
TJ=150°C
Maximum
Reverse
Leakage
at VWM
ID (µA)
Peak Pulse
Current
IPPM
(NOTE 2)
(Amps)
Maximum
Clamping
Voltage at lPPM
VC (Volts)
Maximum
Temperature
Coefficient
of
V(BR)
(% / °C)
15.3 2.0
10 59.5
25.2
0.088
1.5KA20
18.0 22.0 1.0 16.2 2.0 10 51.5
29.1 0.090
1.5KA20A
19.0 21.0 1.0 17.1 2.0 10 54.2
27.7 0.090
1.5KA22
19.8 24.2 1.0 17.8 2.0 10 47.0
31.9 0.092
1.5KA22A
20.9 23.1 1.0 18.8 2.0 10 49.0
30.6 0.092
1.5KA24
21.6 26.4 1.0 19.4 2.0 10 43.2
34.7 0.094
1.5KA24A
22.8 25.2 1.0 20.5 2.0 10 45.2
33.2 0.094
1.5KA27
24.3 29.7 1.0 21.8 2.0 10 38.4
39.1 0.096
1.5KA27A
25.7 28.4 1.0 23.1 2.0 10 40.0
37.5 0.096
1.5KA30
27.0 33.0 1.0 24.3 2.0 10 34.5
43.5 0.097
1.5KA30A
28.5 31.5 1.0 25.6 2.0 10 36.2
41.4 0.097
1.5KA33
29.7 36.3 1.0 26.8 2.0 10 31.4
47.7 0.098
1.5KA33A
31.4 34.7 1.0 28.2 2.0 10 32.8
45.7 0.098
1.5KA36
32.4 39.6 1.0 29.1 2.0 10 28.8
52.0 0.099
1.5KA36A
34.2 37.8 1.0 30.8 2.0 10 30.1
49.9 0.099
1.5KA39
35.1 42.9 1.0 31.6 2.0 10 26.6
56.4 0.100
1.5KA39A
37.1 41.0 1.0 33.3 2.0 10 27.8
53.9 0.100
1.5KA43
38.7 47.3 1.0 34.8 2.0 10 24.2
61.9 0.101
1.5KA43A
40.9 45.2 1.0 36.8 2.0 10 25.3
59.3 0.101
NOTES:
(1) V(BR) measured after IT applied for 300µs = square wave pulse or equivalent
(2) Surge current waveform per Fig. 3 and derate per Fig. 2
(3) All terms and symbols are consistent with ANSI/IEEE C62.35