12F(R) SERIES
STANDARD RECOVERY DIODES
12 A
1
Stud Version
Bulletin I20205 rev. A 09/98
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Features
High surge current capability
Avalanche types available
Stud cathode and stud anode version
Wide current range
Types up to 1200V VRRM
Typical Applications
Battery charges
Converters
Power supplies
Machine tool controls
Parameters 12F(R) Units
IF(AV) 12 A
@ TC144 °C
IF(RMS) 19 A
IFSM @ 50Hz 265 A
@ 60Hz 280 A
I2t@
50Hz 351 A2s
@ 60Hz 320 A2s
VRRM range 100 to 1200 V
TJrange - 65 to 175 °C
Major Ratings and Characteristics
case style
DO-203AA (DO-4)
12F(R) Series
2
Bulletin I20205 rev. A 09/98
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Voltage VRRM, maximum VRSM, maximum non- VR(BR), minimum IRRM max.
Type number Code repetitive peak repetitive peak avalanche @ TJ = 175°C
reverse voltage reverse voltage voltage
VVV(1) mA
10 100 150 --
20 200 275 --
40 400 500 500
12F(R) 60 60 0 7 25 75 0 12
80 800 950 950
100 1000 1200 1150
120 1200 1400 1350
ELECTRICAL SPECIFICATIONS
Voltage Ratings
IF(AV) Max. average forward current 12 A 180° conduction, half sine wave
@ Case temperature 144 °C
IF(RMS) Max. RMS forward current 19 A
PRMaximum non-repetitive 7 K/W 10µs square pulse, TJ = TJ max.
peak reverse power see note (2)
IFSM Max. peak, one-cycle forward, 26 5 t = 10ms No voltage
non-repetitive surge current 280 t = 8.3ms reapplied
225 t = 10ms 100% VRRM
235 t = 8.3ms reapplied Sinusoidal half wave,
I2t Maximum I2t for fusing 35 1 t = 10ms No voltage Initial T J = TJ max.
320 t = 8.3 ms reapplied
25 0 t = 10ms 100% VRRM
22 6 t = 8.3ms r eapplied
I2√t Maximum I2√t for fusing 3510 A2√s t = 0.1 to 10ms, no voltage reapplied
VF(TO)1 Low level value of threshold
voltage
VF(TO)2 High level value of threshold
voltage
rf1Low level value of forward
slope resistance
rf2High level value of forward
slope resistance
VFM Max. forward voltage drop 1.26 V Ipk= 38A, TJ = 25°C, tp = 400µs rectangular wave
Parameter 12F(R) Units Conditions
6.20 (I > π x IF(AV)), TJ = TJ max.
10.70 (16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
mΩ
0.97 (I > π x IF(AV)), TJ = TJ max.
0.77 (16.7% x π x IF(AV) < I < π x IF(AV)), TJ = TJ max.
V
A2s
A
Forward Conduction
(2) Available only for Avalanche version, all other parameters the same as 12F.
(1) Avalanche version only available from VRRM 400V to 1200V.
12F(R) Series
3
Bulletin I20205 rev. A 09/98
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180° 0.33 0.26 TJ = TJ max.
120° 0.41 0.44
90° 0.53 0.58
60° 0.78 0.81
30° 1.28 1.29
Conduction angle Sinusoidal conduction Rectangular conduction Units Conditions
K/W
∆RthJC Conduction
(The following table shows the increment of thermal resistence RthJC when devices operate at different conduction angles than DC)
Ordering Information Table
1234 5
Device Code A12F R120M
1- A = Avalanche diode
None = Standard diode
2- Current rating: Code = IF(AV)
3- F = Standard device
4- None = Stud Normal Polarity (Cathode to Stud)
R = Stud Reverse Polarity (Anode to Stud)
5- Voltage code: Code x 10 = V RRM (See Voltage Ratings table)
6-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)
6
Parameter 12F(R) Units Conditions
TJMax. junction operating temperature range -65 to 175
Tstg Max. storage temperature range -65 to 200
RthJC Max. thermal resistance, junction to case 2 DC operation
RthCS Max. thermal resistance, case Mounting surface, smooth, flat and
to heatsink greased
T Mounting torque, ± 10% 1.2 Nm Lubricated threads
(1.5) (Not lubricated threads)
wt Approximate weight 7 (0.25) g (oz)
Case style DO-203AA (DO-4) See Outline Table
°C
0.5 K/W
Thermal and Mechanical Specifications
12F(R) Series
4
Bulletin I20205 rev. A 09/98
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Outlines Table
Fig. 1 - Current Ratings Characteristics Fig. 2 - Current Ratings Characteristics
130
140
150
160
170
180
0 4 8 12 16 20
DC
30°60°90°120°180°
Maximum Allowable Case Temperature (°C)
Conduction Period
A verage F orward Cu rr ent (A)
12F(R) Series
R (DC ) = 2.0 K/W
thJC
140
150
160
170
180
0 2 4 6 8 10 12 14
30°60° 90° 120° 180°
Maximum A llowable Case T empe ra tur e (°C)
Co nduct io n Angle
A verage F orward Current (A)
12F(R) Series
R (DC ) = 2.0 K/W
thJC
Case Style DO-203AA (DO-4)
All dimensions in millimeters (inches)
12F(R) Series
5
Bulletin I20205 rev. A 09/98
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Fig. 3 - Forward Power Loss Characteristics
0 255075100
Maximum Allowable Ambient Temper ature ( °C)
R = 8 K/W - Delta R
thSA
6 K/W
10 K/W
12 K/W
15 K/W
20 K/W
30 K/W
0
2
4
6
8
10
12
14
02468101214
Average Forward Current (A)
RMS Limit
Maximum Average Forward Po wer Lo ss ( W)
Conduction Angle
180°
120°
90°
60°
30°
12F(R) Series
T = 1 75°C
J
Fig. 4 - Forward Power Loss Characteristics
0 255075100
Maximum Allowable Am bient Temper ature (°C)
R = 6 K/W - Delta R
thSA
8 K/W
10 K/W
12 K/W
15 K/W
20 K/W
30 K/W
0
4
8
12
16
20
0 4 8 12 16 20
DC
180°
120°
90°
60°
30°
A verage Fo rward Curren t (A )
RMS Limit
Maxim um Average F orwar d P ower Loss ( W)
Co nd uc tio n P e rio d
12F(R) Series
T = 175 °C
J
Fig. 5 - Maximum Non-Repetitive Surge Current Fig. 6 - Maximum Non-Repetitive Surge Current
100
125
150
175
200
225
250
1 10 100
P eak H alf Sine Wave F orwar d C urrent (A)
Nu m b er O f Eq ual A m pl itu de Half Cycl e C urren t Pu ls es (N )
12F(R) Series
Initial T = 175°C
@ 60 Hz 0.0 083 s
@ 50 Hz 0.0 100 s
J
A t An y Ra ted Load Condition And W ith
R ated V Ap plied Following Su rge.
RRM
100
125
150
175
200
225
250
275
0.01 0.1 1
Peak Half Sine Wave Forw ard Current (A)
P ulse Tra in D ur ation (s)
12F (R) Series
Initial T = 17 5 °C
N o Volta ge R eapplied
R at ed V Reapplie d
RRM
J
Ve rsu s Pulse Tra in D ur ation.
Maximum Non R epetitive Surge Current
12F(R) Series
6
Bulletin I20205 rev. A 09/98
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Fig. 7 - Forward Voltage Drop Characteristics Fig. 8 - Thermal Impedance ZthJC Characteristics
1
10
100
1000
0123456
T = 25°C
J
Instantaneous Forward Current (A)
In stantaneous Forward V olt age (V)
12F(R) Series
T = 175°C
J
0.1
1
10
0.001 0.01 0.1 1 10
S quar e Wave Pulse D uration (s)
thJC
T ransien t Ther m al Im pe da nce Z (K/ W )
12 F(R) Series
Stea dy State Valu e
R = 2.0 K/W
(DC Operation)
thJC
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