Bulletin I20205 rev. B 01/05
12F(R) SERIES
STANDARD RECOVERY DIODES
Stud Version
Features
High surge current capability
Avalanche types available
Stud cathode and stud anode version
Wide current range
Types up to 1200V V
RRM
12 A
Typical Applications
Battery charges
Converters
Power supplies
Machine tool controls
Major Ratings and Characteristics
Parameters
I
F(AV)
@ T
C
I
F(RMS)
I
FSM
@ 50Hz
@ 60Hz
I
2
t
@ 50Hz
@ 60Hz
V
RRM
T
J
range
range
12F(R)
12
144
19
265
280
351
320
100 to 1200
- 65 to 175
Units
A
°C
A
A
A
A
2
s
A
2
s
V
°C
case style
DO-203AA (DO-4)
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12F(R) Series
Bulletin I20205 rev. B 01/05
ELECTRICAL SPECIFICATIONS
Voltage Ratings
Voltage
Type number
Code
V
RRM
, maximum
repetitive peak
reverse voltage
V
100
200
400
600
800
1000
1200
V
RSM
, maximum non-
repetitive peak
reverse voltage
V
150
275
500
725
950
1200
1400
V
R(BR)
, minimum
avalanche
voltage
V
--
--
500
750
950
1150
1350
I
RRM
max.
@ T
J
= 175°C
(1)
mA
10
20
40
12F(R)
60
80
100
120
12
(1)
Avalanche version only available from V
RRM
400V to 1200V.
Forward Conduction
Parameter
I
F(AV)
Max. average forward current
@ Case temperature
I
F(RMS)
Max. RMS forward current
P
R
I
FSM
Maximum non-repetitive
peak reverse power
Max. peak, one-cycle forward,
non-repetitive surge current
265
280
225
235
I
2
t
Maximum I
2
t for fusing
351
320
250
226
I
2
√t
Maximum I
2
√t
for fusing
voltage
V
F(TO)2
High level value of threshold
voltage
r
f
1
r
f
2
V
FM
Low level value of forward
slope resistance
High level value of forward
slope resistance
Max. forward voltage drop
3510
0.77
V
0.97
10.70
mΩ
6.20
1.26
V
(I >
π
x I
F(AV)
), T
J
= T
J
max.
I
pk
= 38A, T
J
= 25°C, t
p
= 400µs rectangular wave
(I >
π
x I
F(AV)
), T
J
= T
J
max.
(16.7% x
π
x I
F(AV)
< I <
π
x I
F(AV)
), T
J
= T
J
max.
A
2
√s
A
2
s
A
12F(R)
12
144
19
7
Units Conditions
A
°C
A
K/W
10µs square pulse, T
J
= T
J
max.
see note (2)
t = 10ms
t = 8.3ms
t = 10ms
t = 8.3ms
t = 10ms
t = 8.3ms
t = 10ms
t = 8.3ms
No voltage
reapplied
100% V
RRM
reapplied
No voltage
reapplied
100% V
RRM
reapplied
Sinusoidal half wave,
Initial T = T
J
max.
J
180° conduction, half sine wave
t = 0.1 to 10ms, no voltage reapplied
(16.7% x
π
x I
F(AV)
< I <
π
x I
F(AV)
), T
J
= T
J
max.
V
F(TO)1
Low level value of threshold
(2)
Available only for Avalanche version, all other parameters the same as 12F.
2
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12F(R) Series
Bulletin I20205 rev. B 01/05
Thermal and Mechanical Specifications
Parameter
T
J
T
stg
R
thJC
R
thCS
T
Max. junction operating temperature range
Max. storage temperature range
Max. thermal resistance, junction to case
Max. thermal resistance, case
to heatsink
Allowable mounting torque
12F(R)
-65 to 175
-65 to 200
2
0.5
1.5
+0-10%
13
1.2
+0-10%
Units
°C
Conditions
DC operation
K/W
Nm
lbf.in
Nm
lbf.in
g (oz)
See Outline Table
Lubricated threads
Mounting surface, smooth, flat and
greased
Not lubricated threads
10
wt
Approximate weight
Case style
7 (0.25)
DO-203AA (DO-4)
∆R
thJC
Conduction
(The following table shows the increment of thermal resistence R
thJC
when devices operate at different conduction angles than DC)
Conduction angle
180°
120°
90°
60°
30°
Sinusoidal conduction Rectangular conduction Units
0.33
0.41
0.53
0.78
1.28
0.26
0.44
0.58
0.81
1.29
K/W
Conditions
T
J
= T
J
max.
Ordering Information Table
Device Code
A
1
12
2
F
3
R
4
120
5
M
6
1
-
A
= Avalanche diode
None = Standard diode
2
3
4
-
-
-
Current rating: Code = I
F(AV)
F
= Standard device
None = Stud Normal Polarity (Cathode to Stud)
R
= Stud Reverse Polarity (Anode to Stud)
5
6
-
-
Voltage code: Code x 10 = V
RRM
(See Voltage Ratings table)
None = Stud base DO-203AA (DO-4) 10-32UNF-2A
M
= Stud base DO-203AA (DO-4) M5 X 0.8 - (Not available for Avalanche diodes)
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12F(R) Series
Bulletin I20205 rev. B 01/05
Outlines Table
Case Style DO-203AA (DO-4)
All dimensions in millimeters (inches)
Maximum Allowable Case Temperature (°C)
12F(R) Series
R
thJC
(DC) = 2.0 K/W
Maximum Allowable Case Temperature (°C)
180
180
12F(R) Series
R
thJC
(DC) = 2.0 K/W
170
Conduction Angle
170
160
Conduction Period
160
150
30°
140
60°
90°
120°
180°
130
0
4
8
12
DC
16
20
150
30°
140
60°
90°
120° 180°
12
14
0
2
4
6
8
10
Average Forward Current (A)
Average Forward Current (A)
Fig. 1 - Current Ratings Characteristics
Fig. 2 - Current Ratings Characteristics
4
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12F(R) Series
Bulletin I20205 rev. B 01/05
Maximum Average Forward Power Loss (W)
14
12
10
8
6
4
2
0
Conduction Angle
180°
120°
90°
60°
30°
RMS Limit
12
K/W
10
K/W
R
thS
A
6
=8
K/
W
K/
W
15
K/W
20 K
/W
-D
elt
aR
30 K/
W
12F(R) Series
T = 175°C
J
0
2
4
6
8
10
12
0
14
25
50
75
100
Average Forward Current (A)
Maximum Allowable Ambient Temperature (°C)
Fig. 3 - Forward Power Loss Characteristics
20
Maximum Average Forward Power Loss (W)
16
12
DC
180°
120°
90°
60°
30°
R
8K
/W
10 K
/W
12 K
/W
15 K
/W
thS
A
=
6
K/W
-D
elta
R
8 RMS Limit
Conduction Period
20 K/W
30 K/W
4
12F(R) Series
T = 175°C
J
0
4
8
12
16
20
0
25
50
75
100
0
Average Forward Current (A)
Maximum Allowable Ambient Temperature (°C)
Fig. 4 - Forward Power Loss Characteristics
250
225
200
175
150
125
100
275
250
225
200
175
150
125
100
0.01
12F(R) Series
0.1
Pulse Train Duration (s)
1
Peak Half Sine Wave Forward Current (A)
12F(R) Series
1
10
100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Fig. 5 - Maximum Non-Repetitive Surge Current
Peak Half Sine W
ave Forward Current (A)
At Any Rated Load Condition And With
Rated V
RRM
Applied Following Surge.
Initial T = 175°C
J
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
Maximum Non Repetitive Surge Current
Versus Pulse Train Duration.
Initial T
J
= 175°C
No Voltage Reapplied
Rated V
RRM
Reapplied
Fig. 6 - Maximum Non-Repetitive Surge Current
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