SURFACE MOUNT TRANSIENT VOLTAGE SUPPRESSOR
SMA5.0 THRU SMA170CA
Stand-off Voltage
Peak Pulse Power
5.0 to 170 Volts
300 Watts
RATING AND CHARACTERISTIC CURVES SMA5.0 THRU SMA170CA
100
PEAK PULSE POWER
(
P
PP
)
OR CURRENT(
I
PP
)
DERATING IN PERCENTAGE %
P
PPM,
PEAK PULSE POWER, kW
100
10
Non-Repetitive
Pulse Waveform
Shown in Figure 3
TA=25
℃
75
50
1.0
Mounted on 5.0mm
2
Copper Land Areas
1.0
μ
s
10
μ
s
100
μ
s
1.0ms
10ms
0.1
0.1
μ
s
25
t
d
,PULSE WIDTH, SEC
FIG.1- PEAK PULSE POWER RATING CURVE
150
0
0
25
50
75
100
125
150
175
200
T
A
,AMBIENT TEMPERATURE
(℃)
FIG.2- PULSE RATING CURVE
I
PPM,
PEAK PULSE CURRENT-%
tf=10use
Peak Value
lppm
Half Value-lpp
2
50
100
TA=25
℃
Pulse Width
(td)is
Defined
as the Point Where the Peak
Current Decays to 50% of lpp
10,000
TJ=25
℃
f = 1.0MHz
Vsig = 50mVp-p
CJ, CAPACITANCE, pF
10/1000usec Waveform
as Defined by R.E.A.
td
1,000
Measured at
Zero Blas
0
e-kt
1.0
2.0
3.0
4.0
0
t, TIME, ms
FIG.3- PULSE WAVEFORM
50
100
Measured at
Stand-Off
Voltage
(
V
MW
)
I
FSM,
PEAK FORWARD SURGE CURRENT,
AMPERES
40
T
J
=T
J
max
8.3ms Single Half Since-Wave
JEDEC Method
10
1.0
2.0
5.0
10
20
50
100
200
30
V
(
BR
)
,BREALDOWN VOLTAGE,
VOLTS
FIG.4- TYPICAL JUNCTION CAPACITANCE
20
10
0
1
2
4
10
20
40
100
NUMBER OF CYCLES AT 60Hz
FIG.5- MAXIMUM NON-REPETITIVE
PEAK FOWARD SURGE CURRENT
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