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Bulletin I2172 10/04
FAST SOFT RECOVERY
RECTIFIER DIODE
Lead-Free ("PbF" suffix)
Description/ Features
The 40EPF12PbF fast soft recovery QUIETIR
rectifier series has been optimized for combined
short reverse recovery time and low forward
voltage drop.
The glass passivation ensures stable reliable
operation in the most severe temperature and
power cycling conditions.
Typical applications are both:
output rectification and freewheeling in
inverters, choppers and converters
and input rectifications where severe
restrictions on conducted EMI should be met.
QUIETIR Series
40EPF12PbF
VF < 1.25V @ 20A
trr = 95 ns
VRRM = 1200V
Major Ratings and Characteristics
Characteristics
Values Units
IF(AV) Sinusoidal waveform
VRRM
IFSM
VF @ 20 A, TJ = 25°C
trr @ 1A, - 100A/µs
40
1200
475
1.25
95
TJ - 40 to 150
A
V
A
V
ns
°C
Package Outline
TO-247AC (Modified)
Document Number: 94103
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40EPF12PbF QUIETIR Series
Bulletin I2172 10/04
Voltage Ratings
Part Number
40EPF12PbF
VRRM , maximum
peak reverse voltage
V
1200
VRSM , maximum non repetitive
peak reverse voltage
V
1300
IRRM
150°C
mA
10
Absolute Maximum Ratings
Parameters
40EPF..
IF(AV) Max. Average Forward Current
IFSM Max. Peak One Cycle Non-Repetitive
Surge Current
I2t Max. I2t for fusing
I2t Max. I2t for fusing
40
400
475
800
1131
11310
Units
A
A
A2s
A2s
Conditions
@ TC = 105° C, 180° conduction half sine wave
10ms Sine pulse, rated VRRMapplied
10ms Sine pulse, no voltage reapplied
10ms Sine pulse, rated VRRMapplied
10ms Sine pulse, no voltage reapplied
t = 0.1 to 10ms, no voltage reapplied
Electrical Specifications
Parameters
VFM Max. Forward Voltage Drop
rt Forward slope resistance
VF(TO) Threshold voltage
IRM Max. Reverse Leakage Current
40EPF..
1.4
6.82
0.94
0.1
10
Units
V
m
V
mA
Conditions
@ 40A, TJ = 25°C
TJ = 125°C
TJ = 25 °C
TJ = 150 °C
VR = rated VRRM
Recovery Characteristics
Parameters
trr Reverse Recovery Time
Irr Reverse Recovery Current
Qrr Reverse Recovery Charge
S Typical Snap Factor
40EPF..
450
6
1.8
0.5
Units
ns
A
µC
Conditions
IF @ 10Apk
@ 25A/ µs
@ 25°C
Document Number: 94103
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40EPF12PbF QUIETIR Series
Bulletin I2172 10/04
Thermal-Mechanical Specifications
Parameters
40EPF.. Units
Conditions
TJ Max. Junction Temperature Range
Tstg Max. Storage Temperature Range
RthJC Max. Thermal Resistance Junction
to Case
RthJA Max. Thermal ResistanceJunction
to Ambient
- 40 to 150
- 40 to 150
0.6
°C
°C
°C/W
40 °C/W
DC operation
RthCS Typical Thermal Resistance, Case to
Heatsink
0.2
°C/W Mounting surface , smooth and greased
wt Approximate Weight
6 (0.21) g (oz.)
T Mounting Torque
Min.
Max.
6 (5) Kg-cm
12 (10) (Ibf-in)
Case Style
TO-247AC
JEDEC (Modified)
Marking Device
40EPF12
150
40EPF.. Series
140 RthJC (DC) = 0.6 °C/ W
130
120
Conduc tion Angle
110
100
90
80
70
60
0
30°
60°
90°
120°
180°
5 10 15 20 25 30 35 40 45
Average Forward Current (A)
Fig. 1 - Current Rating Characteristics
70
180°
60
120°
90°
60°
50 30°
RMSLimit
40
30
Conduction Angle
20
40EPF.. Series
10 TJ= 150° C
0
0 5 10 15 20 25 30 35 40 45
Average Forward Current (A)
Fig. 3 - Forward Power Loss Characteristics
150
40EPF.. Series
140 RthJC (DC) = 0.6 °C/ W
130
120
110 Cond uc tion Period
100
30°
60°
90 90°
80 120°
70 180° DC
60
0 10 20 30 40 50 60 70
Average Forward Current (A)
Fig. 2 - Current Rating Characteristics
90
DC
80 180°
120°
70 90°
60
60°
30°
50
40 RMSLimit
30 Conduction Period
20 40EPF.. Series
10 TJ = 150°C
0
0 10 20 30 40 50 60 70
Average Forward Current (A)
Fig. 4 - Forward Power Loss Characteristics
Document Number: 94103
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40EPF12PbF QUIETIR Series
Bulletin I2172 10/04
450 At Any Rated Load Condition And With
Rated VRRM Applied Following Surge.
400 Initial TJ = 150°C
@60 Hz 0.0083 s
350 @50 Hz 0.0100 s
300
250
200
150 40EPF.. Series
100
1
10 100
Number Of Equal Amplitude Half Cycle Current Pulses (N)
Fig. 5 - Maximum Non-Repetitive Surge Current
1000
500
Maximum Non Repetitive Surge Current
450
VersusPulse Train Duration.
Initial TJ = 150°C
400
No Voltage Reapplied
Rat ed VRRM Reapplied
350
300
250
200
150 40EPF.. Series
100
0.01
0.1
Pulse Train Duration (s)
1
Fig. 6 - Maximum Non-Repetitive Surge Current
100
TJ= 25°C
10 TJ= 150°C
40EPF.. Series
1
01 2 34 5 6
Instantaneous Forward Voltage (V)
Fig. 7 - Forward Voltage Drop Characteristics
0.7
40EPF.. Series
0.6 TJ= 25°C
0.5
0.4
IFM = 40 A
0.3
30 A
0.2 10 A
5A
0.1
1A
0
0 40 80 120 160 200
Rate Of Fall Of Forward Current - d i/ dt (A/ µs)
Fig. 8 - Recovery Time Characteristics, JT= 25°C
2
40EPF.. Series
1.6 TJ= 150°C
I FM = 60 A
1.2 40 A
20 A
10 A
0.8 5 A
1A
0.4
0
0 40 80 120 160 200
Rate Of Fall Of Forward Current - di/ dt (A/ µs)
Fig. 9 - Recovery Time Characteristics, TJ = 150°C
Document Number: 94103
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6
40EPF.. Series
5 TJ = 25°C
4
I FM = 40 A
30 A
3
10 A
2
5A
1
1A
0
0 40 80 120 160 200
Rate Of Fall Of Forward Current - di/ dt (A/ µs)
Fig. 10 - Recovery Charge Characteristics, JT= 25°C
30
40EPF.. Series
25 TJ = 25°C
I FM = 40 A
30 A
20 10 A
15 5 A
10 1 A
5
0
0 40 80 120 160 200
Rate Of Fall Of Forward Current - di/ dt (A/ µs)
Fig. 12 - Recovery Current Characteristics, JT= 25°C
1
40EPF12PbF QUIETIR Series
Bulletin I2172 10/04
20
40EPF.. Series
TJ = 150°C
16
12
8
I FM= 60 A
40 A
20 A
10 A
4 5A
1A
0
0 40 80 120 160 200
Rate Of Fall Of Forward Current - di/ dt (A/ µs)
Fig. 11 - Recovery Charge Characteristics, JT= 150°C
50
40EPF.. Series
TJ = 150°C
40
I FM = 60 A
40 A
30 20 A
10 A
20 5 A
10
1A
0
0 40 80 120 160 200
Rate Of Fall Of Forward Current - di/ dt (A/ µs)
Fig. 13 - Recovery Current Characteristics, JT= 150°C
Stead ySt ate Value
(DC Operation)
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
Sing le P ulse
40EPF.. Series
0.1
0.0001
0.001
0.01
0.1
Square Wave Pulse Duration (s)
1
Fig. 14 - Thermal Impedance ZthJC Characteristics
Document Number: 94103
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