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参数资料
| 型号： | SA28T |
| 元件分类： | TVS二极管 - 瞬态电压抑制 |
| 英文描述： | 500 W, UNIDIRECTIONAL, SILICON, TVS DIODE, DO-204AC |
| 封装： | ROHS COMPLIANT, PLASTIC, DO-15, 2 PIN |
| 文件页数： | 3/4页 |
| 文件大小： | 141K |
| 代理商： | SA28T |
Silicon Avalanche Diodes
293
www .littelfuse .com
500 Watt Axial Leaded Transient Voltage Suppressors
Fig. 1 Peak Pulse Power Rating Curve
P P
PM
-P
eak
Pu
lse
Po
we
r(K
W)
0.1s 1.0s 10s
100s 1.0ms 10ms
0.1
1
10
30
Non-repetitive Pulse
Waveform Shown in Fig. 3
TA=25C
td- Pulse Width (sec.)
Fig. 2 Pulse Derating Curve
TA- Ambient Temperature (C)
Pe
ak
Pu
lse
Po
we
r(P
PP
)o
rC
urr
ent
(I P
P)
De
rat
ing
inP
erc
ent
age
,%
0
25
50
75
100
125 150 175 200
Fig. 3 Pulse Waveform
I PP
M-
Pe
ak
Pu
lse
Cu
rre
nt,
%
I R
SM
0
50
100
150
1.0
2.0
3.0
4.0
tr=10sec
Peak Value
IPPM
Half Value IPPM
2
TJ=25C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
10/1000sec. Waveform
as defined by R.E.A
td
t-Time (ms)
Fig. 6- Maximum Non-Repetitive
I PS
M-
Pe
ak
Fo
rwa
rd
Su
rge
Cu
rre
nt(
A)
1
10
100
200
10
100
Number of Cycles at 60Hz
Forward Surge Current
Uni-Directional Only
8.3 Single Half Sine-Wave
(JEDEC Method)
Undirectional Only
Fig. 4- Typical Junction Capacitance
C J
-Ju
nct
ion
Ca
pac
itan
ce
(pF
)
6000
1000
100
10
5
100
500
VWM-Reverse Stand-Off Voltage (V)
VR=Rated
Stand-Off Voltage
TJ=25C
f=1MHZ
Vsig=50mVp-p
Uni-Directional
Bi-Directional
VR=
Fig. 5 Steady State Power
Derating Curve
T1- Lead Temperature (C)
Ste
ady
Sta
teP
ow
er
Dis
sip
atio
n(
W)
0
25
1.0
50
2.0
75
3.0
100
4.0
125 150 175 200
L=0.375"(9.5mm)
Lead Lengths
1.6x1.6x.040
(40x40x1mm)
Copper Heat Sinks
P
Td
Half SINE
Exponential
Square
SA Series
RoHS
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