参数资料
型号: SMAJ20CA
厂商: LITE-ON SEMICONDUCTOR CORP
元件分类: TVS二极管 - 瞬态电压抑制
英文描述: 400 W, BIDIRECTIONAL, SILICON, TVS DIODE
封装: PLASTIC, SMA, 2 PIN
文件页数: 2/4页
文件大小: 125K
代理商: SMAJ20CA
RATING AND CHARACTERISTIC CURVES
SMAJ SERIES
FIG.1 - PULSE DERATING CURVE
P
E
A
K
P
U
L
S
E
D
E
R
A
T
IN
G
IN
%
O
F
P
E
A
K
P
O
W
E
R
O
R
C
U
R
E
N
T
25
75
100
125
150
0
50
100
0
175
75
25
200
10 X 1000 WAVEFORM AS
DEFINED BY R.E.A.
FIG.2 - MAXIMUM NON-REPETITIVE SURGE CURRENT
NUMBER OF CYCLES AT 60Hz
P
E
A
K
F
O
R
W
A
R
D
S
U
R
G
E
C
U
R
E
N
T
,
A
M
P
E
R
E
S
1
5
10
50
100
2
20
0
10
Pulse Width 8.3ms
Single Half-Sine-Wave
20
30
40
50
60
P
M
(A
V
),
S
T
E
A
D
Y
S
T
A
T
E
P
O
W
E
R
D
IS
S
IP
A
T
IO
N
(W
)
FIG.6 - STEADY STATE POWER DERATING CURVE
TL, LEAD TEMPERATURE,
25
75
100
125
150
0.0
50
0
175
200
0.2
0.4
0.6
0.8
1.0
60Hz RESISTIVE OR
INDUCTIVE LOAD
FIG.4 - TYPICAL JUNCTION CAPACITANCE
C
A
P
A
C
IT
A
N
C
E
,
(p
F
)
STAND-OFF VOLTAGE, VOLTS
10
1
100
10000
1000
100
10
1000
Uni-directional
Bi-directional
TJ = 25 C
AMBIENT TEMPERATURE, ℃
FIG.5 - PULSE RATING CURVE
P
,
P
E
A
K
P
O
W
E
R
(
K
W
)
TP, PULSE WIDTH
0.1
1.0
10
0.1us
1.0us
10us
100us
1.0ms
10ms
100
TA=25 C
5.0mm LEAD AREAS
NON-REPETITIVE
PULSE WAVEFORM
SHOWN IN FIG 3.
FIG.3 - PULSE WAVEFORM
0
IP
,
P
E
A
K
P
U
L
S
E
C
U
R
E
N
T
,
(%
)
T , TIME ( ms )
50
100
1.0
2.0
3.0
4.0
TR=10us
Peak value (IRSM)
TP
10 x 1000 waveform as
defined by R.E.A.
Pulse width (TP) is defined
as that point where the
peak current decays to
50% of IRSM
TJ=25 C
IRSM
2
Half value=
Measured at
F= 1MHz,
1.0Vrms signal
Bias=0Vdc
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