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BY249 Datasheet(PDF) 3 Page - NXP Semiconductors

Part No. BY249
Description  Rectifier diodes general purpose
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

BY249 Datasheet(HTML) 3 Page - NXP Semiconductors

  BY249 Datasheet HTML 1Page - NXP Semiconductors BY249 Datasheet HTML 2Page - NXP Semiconductors BY249 Datasheet HTML 3Page - NXP Semiconductors BY249 Datasheet HTML 4Page - NXP Semiconductors BY249 Datasheet HTML 5Page - NXP Semiconductors  
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Philips Semiconductors
Product specification
Rectifier diodes
BY249 series
general purpose
Fig.1. Maximum forward dissipation P
F = f(IF(AV));
square wave where I
F(AV) =IF(RMS) x √D.
Fig.2. Maximum forward dissipation P
F = f(IF(AV));
sinusoidal current waveform where a = form
factor = I
F(RMS) / IF(AV).
Fig.3. Maximum non-repetitive rms forward current.
I
F = f(tp); sinusoidal current waveform; Tj = 150˚C prior
to surge with reapplied V
RWM.
Fig.4. Typical and maximum forward characteristic
I
F = f(VF); parameter Tj
Fig.5. Transient thermal impedance Z
th = f(tp)
0
2468
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
Vo = 1.0120 V
D =
tp
tp
T
T
t
I
1ms
10ms
0.1s
1s
10s
tp / s
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 =
tp
tp
T
T
P
t
D
September 1998
3
Rev 1.300


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