1.5KA6.8 THRU 1.5KA43A
AUTOMOTIVE TRANSIENT VOLTAGE SUPPRESSOR
Breakdown Voltage -
6.8 to 43 Volts
Case Style 1.5KA
Peak Pulse Power -
1500 Watts
FEATURES
P
A
T
E
1.0 (25.4)
MIN.
0.210 (5.3)
0.190 (4.8)
DIA.
0.375 (9.5)
0.285 (7.2)
1.0 (25.4)
MIN.
0.042 (1.07)
0.038 (0.96)
DIA.
♦
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
I
D
are typically less than
1.0µA at T
A
=150°C
♦
High temperature soldering guaranteed:
300°C/10 seconds, 0.375" (9.5mm) lead length,
5lbs. (2.3 kg) tension
N
T
E
D
*
MECHANICAL DATA
Dimensions in inches and (millimeters)
*
Patent #’s
4,980,315
5,166,769
5,278,094
Available in uni-directional only
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.
SYMBOL
VALUE
UNITS
Peak pulse power dissipation with a 10/1000µs waveform
(NOTE 1, FIG. 1)
P
PPM
I
PPM
Minimum 1500
SEE TABLE 1
Watts
Amps
Peak pulse current at T
A
=25°C with a 10/1000µs waveform
(NOTE 1, FIG. 3)
Steady state power dissipation at T
L
=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
P
M(AV)
I
FSM
V
F
T
J
, T
STG
5.0
200
3.5
-65 to +185
Watts
Amps
Volts
°C
NOTES:
(1) Non-repetitive current pulse, per Fig. 3 and derated above T
A
=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
ELECTRICAL CHARACTERISTICS at (T
A
=
25°C unless otherwise noted) TABLE 1 (Cont’d)
Breakdown Voltage
V
(BR)
Volts
(NOTE 1)
Device Type
MIN
MAX
Maximum
Reverse
Leakage
at V
WM
I
D
(µA)
T
J
=150°C
Maximum
Reverse
Leakage
at V
WM
I
D
(µA)
Peak Pulse
Current
I
PPM
(NOTE 2)
Test
Current
at I
T
(mA)
Stand-off
Voltage
V
WM
(Volts)
(Amps)
Maximum
Clamping
Voltage at l
PPM
V
C
(Volts)
Maximum
Temperature
Coefficient
of
V
(BR)
(% /
°C)
1.5KA18A
1.5KA20
1.5KA20A
1.5KA22
1.5KA22A
1.5KA24
1.5KA24A
1.5KA27
1.5KA27A
1.5KA30
1.5KA30A
1.5KA33
1.5KA33A
1.5KA36
1.5KA36A
1.5KA39
1.5KA39A
1.5KA43
1.5KA43A
17.1
18.0
19.0
19.8
20.9
21.6
22.8
24.3
25.7
27.0
28.5
29.7
31.4
32.4
34.2
35.1
37.1
38.7
40.9
18.9
22.0
21.0
24.2
23.1
26.4
25.2
29.7
28.4
33.0
31.5
36.3
34.7
39.6
37.8
42.9
41.0
47.3
45.2
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
15.3
16.2
17.1
17.8
18.8
19.4
20.5
21.8
23.1
24.3
25.6
26.8
28.2
29.1
30.8
31.6
33.3
34.8
36.8
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
59.5
51.5
54.2
47.0
49.0
43.2
45.2
38.4
40.0
34.5
36.2
31.4
32.8
28.8
30.1
26.6
27.8
24.2
25.3
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
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
NOTES:
(1) V
(BR)
measured after I
T
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
RATINGS AND CHARACTERISTIC CURVES 1.5KA6.8 THRU 1.5KA43A
FIG. 1 - PEAK PULSE POWER RATING CURVE
FIG. 2 - PULSE DERATING CURVE
100
PEAK PULSE POWER (P
PP
) or CURRENT (I
PP
)
DERATING IN PERCENTAGE, %
P
PPM
, PEAK PULSE POWER, kW
NON-REPETITIVE
PULSE WAVEFORM
SHOWN in FIG. 3
T
A
=25°C
100
10
75
50
1.0
25
0.1
0.1
µ
s
1.0
µ
s
10
µ
s
100
µ
s
1.0ms
10ms
td, PULSE WIDTH, sec.
0
0
25
50
75
100
125
150
175
200
T
A
, AMBIENT TEMPERATURE, °C
FIG. 4 - TYPICAL JUNCTION CAPACITANCE
UNIDIRECTIONAL
FIG. 3 - PULSE WAVEFORM
20,000
10,000
T
J
=25°C
f=1.0 MHZ
V
SIG
=50mV
P-P
MEASURED at
ZERO BIAS
150
t
r
=10µsec.
PULSE WIDTH (t
d
) is DEFINED
as the POINT WHERE the PEAK
CURRENT DECAYS to 50% of I
PP
I
PPM
PEAK PULSE CURRENT, %
PEAK VALUE
I
PPM
HALF VALUE - I
PP
2
10/1000µsec. WAVEFORM
as DEFINED by R.E.A.
C
J
, CAPACITANCE , pF
100
50
1,000
MEASURED at
STAND-OFF
VOLTAGE, V
WM
td
0
0
1.0
2.0
t, TIME, ms
3.0
4.0
100
1.0
2
10
20
50
100
V
(BR)
, BREAKDOWN VOLTAGE, VOLTS
FIG. 5 - STEADY STATE POWER DERATING
CURVE
PM
(AV),
STEADY STATE POWER DISSIPATION,
WATTS
5.0
I
FSM,
PEAK FORWARD SURGE CURRENT,
AMPERES
FIG. 6 - MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
L
3.75
=0.375” (9.5mm)
LEAD LENGTHS
60 H
Z
RESISTIVE OR
INDUCTIVE LOAD
200
T
L
=75°C
8.3
ms
SINGLE HALF SINE-WAVE
(JEDEC Method)
100
50
2.5
0.8 x 0.8 x 0.040"
(20 x 20 x 1mm)
COPPER HEAT SINKS
1.25
0
0
25
50
75
100
125
150
175
200
10
1
10
NUMBER OF CYCLES AT 60 H
Z
100
T
L,
LEAD TEMPERATURE,°C
Test/Measurement
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