參數(shù)資料
型號(hào)： BY249SERIES
英文描述： Quad 2-input OR gate
中文描述： 四2輸入或門
文件頁(yè)數(shù)： 3/5頁(yè)
文件大小： 39K
代理商： BY249SERIES
Philips Semiconductors
Product specification
Rectifier diodes
general purpose
BY249 series
Fig.1. Maximum forward dissipation P
= f(I
F(AV)
);
square wave where I
F(AV)
=I
F(RMS)
x
√
D.
Fig.2. Maximum forward dissipation P
= f(I
);
sinusoidal current waveform where a = form
factor = I
F(RMS)
/ I
F(AV)
.
Fig.3. Maximum non-repetitive rms forward current.
I
F
= f(t
p
); sinusoidal current waveform; T
j
= 150C prior
to surge with reapplied V
RWM
.
Fig.4. Typical and maximum forward characteristic
I
F
= f(V
F
); parameter T
j
Fig.5. Transient thermal impedance Z
th
= f(t
p
)
0
2
4
6
8
10
12
0
5
10
15
D = 1.0
0.5
0.2
0.1
BY249
IF(AV) / A
PF / W
Tmb(max) / C
150
140
130
120
Rs = 0.0200 Ohms
D =
t
p
t
p
T
T
t
I
1ms
10ms
0.1s
tp / s
1s
10s
IFS(RMS) / A
BY229
80
70
60
50
40
30
20
10
0
IFSM
0
2
4
6
8
BY249
IF(AV) / A
PF / W
15
10
5
0
a = 1.57
1.9
2.2
2.8
4
Tmb(max) / C
150
140
130
120
Vo = 1.012 V
Rs = 0.02 Ohms
0
1
2
BY249
VF / V
IF / A
30
20
10
0
0.5
1.5
typ
max
Tj = 100 C
Tj = 25 C
1us
10us
100us
1ms
10ms
100ms
1s
10s
0.001
0.01
0.1
1
10
BY229
pulse width, tp (s)
Transient thermal impedance, Zth j-mb (K/W)
D =
t
p
t
p
T
T
P
t
D
September 1998
3
Rev 1.300
相關(guān)PDF資料
PDF描述
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