Instruction Manual

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Document Number: 93487
4 Revision: 29-Sep-08
12F(R) Series
Vishay High Power Products
Standard Recovery Diodes
(Stud Version), 12 A
Fig. 4 - Forward Power Loss Characteristics
Fig. 5 - Maximum Non-Repetitive Surge Current
Fig. 6 - Maximum Non-Repetitive Surge Current
Fig. 7 - Forward Voltage Drop Characteristics
Fig. 8 - Thermal Impedance Z
thJC
Characteristics
0255075100
Maximum Allowable Ambient Temperature (°C)
R
=
6
K
/
W
-
D
e
l
t
a
R
t
h
S
A
8
K
/
W
1
0
K
/
W
1
2
K
/
W
1
5
K
/
W
2
0
K
/
W
3
0
K
/
W
0
4
8
12
16
20
0 4 8 121620
DC
180°
120°
90°
60°
30°
Average Forward Current (A)
RMS Limit
Maximum Average Forward Power Loss (W)
Conduction Period
12F(R) Series
T = 175°C
J
100
125
150
175
200
225
250
110100
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude Half Cycle Current Pulses (N)
12F(R) Series
Initial T = 175°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
J
At Any Rated Load Condition And With
Rated V Applied Following Surge.
RRM
100
125
150
175
200
225
250
275
0.01 0.1 1
Peak Hal f Sine Wave Forward Current (A)
Pulse Train Duration (s)
12F(R) Series
Initial T = 175°C
No Voltage Reapplied
Rated V Reapplied
RRM
J
Versus Pulse Train Duration.
Maxi mum Non Repeti tive Surge Current
1
10
100
1000
0123456
T = 25°C
J
Instantaneous Forward Current (A)
Instantaneous Forward Voltage (V)
12F(R) Series
T = 175°C
J
0.1
1
10
0.001 0.01 0.1 1 10
Square Wave Pulse Duration (s)
thJC
Transient Thermal Impedance Z (K/W)
12F(R) Series
Steady State Value
R = 2.0 K/W
(DC Operation)
thJC