F R D
T y p e :
K
K
K
KS
S
S
SF25
F25
F25
F25A
A
A
A120B
120B
120B
120B
OULINE DRAWING
Maximum Ratings
Approx Net Weight:
5.55g
Rating Symbol
KSF25A120B
Unit
Repetitive Peak Reverse Voltage
V
RRM
1200
V
Average Rectified Output Current *1
I
O
25
Tc=32
C
50 Hz half Sine Wave
Resistive Load
A
RMS Forward Current
I
F(RMS)
39
A
Surge Forward Current
I
FSM
400
50Hz Half Sine Wave ,1cycle
Non-repetitive
A
Operating JunctionTemperature Range
T
jw
-40 to +150
C
Storage Temperature Range
T
stg
-40 to +150
C
Mounting torque
Ftor
recommended torque = 0.5
Nm
*1:Anode Terminals 1 and 3 Connected
Electrical
Thermal Characteristics
Characteristics Symbol
Conditions
Min.
Typ.
Max.
Unit
Peak Reverse Current
I
RM
Tj= 25
C, V
RM
= V
RRM
- - 5
mA
Peak Forward Voltage *1
V
FM
Tj= 25
C, I
FM
= 25 A
- - 2.5 V
Reverse Recovery Time
trr
I
FM
= 25A,
-di/dt=200A/
s, Ta=25
C
200
ns
Thermal Resistance
Rth(j-c) Junction to Case
-
-
1.5
C
/W
*1:Anode Terminals 1 and 3 Connected
FEATURES
FEATURES
FEATURES
FEATURES
* Similar to TO-247AC(TO-3P)Case
* Ultra-Fast Recovery
* Low Forward Voltage Drop
* Low Power Loss,High Efficiency
* High Surge Current Capability
* High Voltage
FORWARD CURRENT VS. VOLTAGE
KSF25A120B
0
1
2
3
4
5
6
INSTANTANEOUS FORWARD VOLTAGE (V)
2
5
10
20
50
100
200
INSTANTANEOUS FORWARD CURRENT (A)
Tj=25C
Tj=150C
AVERAGE FORWARD POWER DISSIPATION
0
10
20
30
40
AVERAGE FORWARD CURRENT (A)
0
20
40
60
80
100
AVERAGE FORWARD POWER DISSIPATION (W)
KSF25A120B
0
180
CONDUCTION ANGLE
HALF SINE WAVE
D.C.
RECT 180
RECT 120
RECT 60
AVERAGE FORWARD CURRENT VS. CASE TEMPERATURE
KSF25A120B
0
25
50
75
100
125
150
CASE TEMPERATURE (C)
0
10
20
30
40
AVERAGE FORWARD CURRENT (A)
0
180
CONDUCTION ANGLE
HALF SINE WAVE
D.C.
RECT 180
RECT 120
RECT 60
SURGE CURRENT RATINGS
KSF25A120B
f=50Hz,Half Sine Wave,Non-Repetitive,No Load
0.02
0.05
0.1
0.2
0.5
1
2
TIME (s)
0
40
80
120
160
SURGE FORWARD CURRENT (A)
0.02s
IFSM
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