1N3879 データシートの表示（PDF） - Vishay Semiconductors
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1N3879 Datasheet PDF : 8 Pages
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VS-1N3879(R), VS-1N3889(R) Series
Vishay Semiconductors
I
t
IF
IFM
%IRM(REC)
IRM(REC)
dIF
dt
trr
Qrr
IF, IFM - Peak forward current prior to commutation
-dIF/dt - Rate of fall of forward current
IRM(REC) - Peak reverse recovery current
trr - Reverse recovery time
Qrr - Reverse recovered charge
Fig. 3 - Reverse Recovery Time Test Waveform
10
1N3879 to 1N3883
9 TJ = 150 °C
8
Ø = 180°
7
120°
6
60°
30°
5
RMS limit
4
3
12 - ΔR
15 - ΔR
R
thSA
=
10
8
-
- ΔR 7 -
ΔR K/W
6
ΔR
-
ΔR
20 - ΔR
30 - ΔR
2
Ø
No heatsink
1
Conduction angle
0
0
1
2
3
4
5
6 10 20 30 40 50 60 70 80 90 100
Average Forward Current (A)
Maximum Allowable
Ambient Temperature (°C)
Fig. 4 - Current Rating Nomogram (Sinusoidal Waveforms), 1N3879 Series
14
1N3879
12 to 1N3883
TJ = 150 °C
10
Ø = 180°
120°
8
60°
DC
30°
6
RMS limit
4
R
thSA =
10
6-
8 - ΔR
- ΔR
5
ΔR
K/W
-
ΔR
151-2Δ-RΔR
20 - ΔR
4 - ΔR
30 - ΔR
2
Ø
Conduction angle
No heatsink
0
0 1 2 3 4 5 6 7 8 9 10 10 20 30 40 50 60 70 80 90 100
Average Forward Current (A)
Maximum Allowable
Ambient Temperature (°C)
Fig. 5 - Current Rating Nomogram (Rectangular Waveforms), 1N3879 Series
180° 0.58
120° 0.60
60° 1.28
30° 2.20
DC 0
180° 0.33
120° 0.58
60° 1.28
30° 2.20
Revision: 11-Jan-18
4
Document Number: 93144
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