20ETF.. Soft Recovery Series
Vishay High Power Products
Fast Soft Recovery
Rectifier Diode, 20 A
FEATURES/DESCRIPTION
Base
cathode
2
The 20ETF.. fast soft recovery 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.
TO-220AC
1
Cathode
3
Anode
This product series has been designed and qualified for
industrial level.
APPLICATIONS
PRODUCT SUMMARY
V
F
at 10 A
I
FSM
V
RRM
< 1.2 V
300 A
200 to 600 V
• Output rectification and
choppers and converters
freewheeling
in
inverters,
• Input rectifications where severe restrictions on conducted
EMI should be met
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
V
RRM
I
F(AV)
I
FSM
t
rr
V
F
T
J
1 A, 100 A/µs
10 A, T
J
= 25 °C
Range
Range
Sinusoidal waveform
CHARACTERISTICS
VALUES
200 to 600
20
300
60
1.2
- 40 to 150
UNITS
V
A
ns
V
°C
VOLTAGE RATINGS
PART NUMBER
20ETF02
20ETF04
20ETF06
V
RRM
, MAXIMUM PEAK REVERSE
VOLTAGE
V
200
400
600
V
RSM
, MAXIMUM NON-REPETITIVE
PEAK REVERSE VOLTAGE
V
300
500
700
5
I
RRM
AT 150 °C
mA
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Maximum average forward current
Maximum peak one cycle
non-repetitive surge current
Maximum I
2
t for fusing
Maximum I
2
√t
for fusing
SYMBOL
I
F(AV)
I
FSM
I
2
t
I
2
√t
TEST CONDITIONS
T
C
= 97 °C, 180° conduction half sine wave
10 ms sine pulse, rated V
RRM
applied
10 ms sine pulse, no voltage reapplied
10 ms sine pulse, rated V
RRM
applied
10 ms sine pulse, no voltage reapplied
t = 0.1 to 10 ms, no voltage reapplied
VALUES
20
250
300
316
442
4420
A
2
s
A
2
√s
A
UNITS
Document Number: 93139
Revision: 11-Jun-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
1
20ETF.. Soft Recovery Series
Vishay High Power Products
ELECTRICAL SPECIFICATIONS
PARAMETER
Maximum forward voltage drop
Forward slope resistance
Threshold voltage
Maximum reverse leakage current
SYMBOL
V
FM
r
t
V
F(TO)
I
RM
TEST CONDITIONS
20 A, T
J
= 25 °C
T
J
= 150 °C
T
J
= 25 °C
T
J
= 150 °C
VALUES
1.3
12.5
0.9
V
R
= Rated V
RRM
0.1
5.0
UNITS
V
mΩ
V
mA
Fast Soft Recovery
Rectifier Diode, 20 A
RECOVERY CHARACTERISTICS
PARAMETER
Reverse recovery time
Reverse recovery current
Reverse recovery charge
Snap factor
SYMBOL
t
rr
I
rr
Q
rr
S
TEST CONDITIONS
I
F
at 20 Apk
100 A/µs
25 °C
Typical
VALUES
160
10
1.25
0.6
UNITS
ns
A
µC
dir
dt
I
FM
t
a
t
rr
t
b
Q
rr
I
RM(REC)
t
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
Maximum junction and storage
temperature range
Maximum thermal resistance,
junction to case
Maximum thermal resistance,
junction to ambient
Typical thermal resistance,
case to heatsink
Approximate weight
minimum
maximum
SYMBOL
T
J
, T
Stg
R
thJC
R
thJA
R
thCS
Mounting surface, smooth and greased
DC operation
TEST CONDITIONS
VALUES
- 40 to 150
0.9
62
0.5
2
0.07
6 (5)
12 (10)
20ETF02
Marking device
Case style TO-220AC
20ETF04
20ETF06
g
oz.
kgf · cm
(lbf · in)
°C/W
UNITS
°C
Mounting torque
www.vishay.com
2
For technical questions, contact: diodes-tech@vishay.com
Document Number: 93139
Revision: 11-Jun-08
20ETF.. Soft Recovery Series
Fast Soft Recovery
Rectifier Diode, 20 A
150
45
20ETF.. Series
R
thJC
(DC) = 0.9 K/W
Vishay High Power Products
Maximum Average Forward
Power Loss (W)
Maximum Allowable Case
Temperature (°C)
140
130
40
35
30
25
20
15
10
5
0
0
Ø
120
110
100
90
30°
80
70
0
2
4
6
8
Conduction angle
DC
180°
120°
90°
60°
30°
RMS limit
Ø
Conduction period
60° 90° 120° 180°
20ETF.. Series
T
J
= 150 °C
5
10
15
20
25
30
35
10 12 14 16 18 20 22
Average Forward Current (A)
Fig. 1 - Current Rating Characteristics
Average Forward Current (A)
Fig. 4 - Forward Power Loss Characteristics
150
300
20ETF.. Series
R
thJC
(DC) = 0.9 K/W
Maximum Allowable Case
Temperature (°C)
140
130
At any rated load condition and with
rated V
RRM
applied following surge.
Peak Half Sine Wave
Forward Current (A)
250
Initial T
J
= 150 °C
at 60 Hz 0.0083 s
at 50 Hz 0.0100 s
Ø
200
120
110
30°
100
90
80
0
5
10
15
60°
90°
120°
Conduction period
150
100
20ETF.. Series
180°
DC
25
30
35
50
1
10
100
20
Average Forward Current (A)
Fig. 2 - Current Rating Characteristics
Number of Equal Amplitude Half Cycle
Current Pulses (N)
Fig. 5 - Maximum Non-Repetitive Surge Current
35
550
180°
120°
90°
60°
30°
500
Maximum non-repetitive surge current
versus pulse train duration.
Initial T
J
= 150 °C
No voltage reapplied
Rated V
RRM
reapplied
Maximum Average Forward
Power Loss (W)
30
25
20
Peak Half Sine Wave
Forward Current (A)
450
400
350
300
250
200
150
100
20ETF.. Series
0.01
RMS limit
15
10
5
0
0
5
10
15
Ø
Conduction angle
20ETF.. Series
T
J
= 150 °C
20
25
50
0.001
0.1
1
Average Forward Current (A)
Fig. 3 - Forward Power Loss Characteristics
Pulse Train Duration (s)
Fig. 6 - Maximum Non-Repetitive Surge Current
Document Number: 93139
Revision: 11-Jun-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
3
20ETF.. Soft Recovery Series
Vishay High Power Products
1000
Fast Soft Recovery
Rectifier Diode, 20 A
Instantaneous Forward Current (A)
100
10
T
J
= 25 °C
T
J
= 150 °C
20ETF.. Series
1
0
1
2
3
4
5
Instantaneous Forward Voltage (V)
Fig. 7 - Forward Voltage Drop Characteristics
0.20
20ETF.. Series
T
J
= 25 °C
0.15
I
FM
= 30 A
0.10
I
FM
= 20 A
I
FM
= 10 A
0.05
I
FM
= 5 A
I
FM
= 1 A
0
0
200
400
600
800
1000
70
60
20ETF.. Series
T
J
= 25 °C
I
FM
= 30 A
I
FM
= 20 A
I
FM
= 10 A
I
FM
= 5 A
20
10
0
0
200
400
600
800
1000
I
FM
= 1 A
t
rr
- Maximum Reverse
Recovery Time (µs)
I
rr
- Maximum Reverse
Recovery Current (A)
50
40
30
dI/dt - Rate of Fall of Forward Current (A/µs)
Fig. 8 - Recovery Time Characteristics, T
J
= 25 °C
dI/dt - Rate of Fall of Forward Current (A/µs)
Fig. 10 - Recovery Charge Characteristics, T
J
= 25 °C
0.5
20ETF.. Series
T
J
= 150 °C
100
20ETF.. Series
T
J
= 150 °C
t
rr
- Maximum Reverse
Recovery Time (µs)
0.3
0.2
I
FM
= 30 A
I
FM
= 20 A
I
FM
= 10 A
I
FM
= 5 A
I
FM
= 1 A
I
rr
- Maximum Reverse
Recovery Current (A)
0.4
80
I
FM
= 30 A
I
FM
= 20 A
I
FM
= 10 A
60
40
I
FM
= 5 A
I
FM
= 1 A
0.1
20
0
0
200
400
600
800
1000
0
0
200
400
600
800
1000
dI/dt - Rate of Fall of Forward Current (A/µs)
Fig. 9 - Recovery Time Characteristics, T
J
= 150 °C
dI/dt - Rate of Fall of Forward Current (A/µs)
Fig. 11 - Recovery Charge Characteristics, T
J
= 150 °C
www.vishay.com
4
For technical questions, contact: diodes-tech@vishay.com
Document Number: 93139
Revision: 11-Jun-08
20ETF.. Soft Recovery Series
Fast Soft Recovery
Rectifier Diode, 20 A
4.0
3.5
20ETF.. Series
T
J
= 25 °C
I
FM
= 30 A
10
9
20ETF.. Series
T
J
= 150 °C
I
FM
= 30 A
Vishay High Power Products
Q
rr
- Maximum Reverse
Recovery Charge (µC)
Q
rr
- Maximum Reverse
Recovery Charge (µC)
8
7
6
5
4
3
2
1
0
3.0
I
FM
= 20 A
2.5
2.0
1.5
1.0
I
FM
= 5 A
0.5
I
FM
= 1 A
0
0
200
400
600
800
1000
I
FM
= 10 A
I
FM
= 20 A
I
FM
= 10 A
I
FM
= 5 A
I
FM
= 1 A
0
200
400
600
800
1000
dI/dt - Rate of Fall of Forward Current (A/µs)
Fig. 12 - Recovery Current Characteristics, T
J
= 25 °C
dI/dt - Rate of Fall of Forward Current (A/µs)
Fig. 13 - Recovery Current Characteristics, T
J
= 150 °C
Z
thJC
- Transient Thermal Impedance (K/W)
10
Steady state
value
(DC operation)
1
0.1
Single pulse
D = 0.50
D = 0.33
D = 0.25
D = 0.17
D = 0.08
20ETF.. Series
0.01
0.0001
0.001
0.01
0.1
1
Square Wave Pulse Duration (s)
Fig. 14 - Thermal Impedance Z
thJC
Characteristics
Document Number: 93139
Revision: 11-Jun-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
5
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