VS-20ETF..PbF Soft Recovery Series
Vishay High Power Products
Fast Soft Recovery Rectifier Diode, 20 A
FEATURES
Base
cathode
2
• Meets MSL level 1, per J-STD-020, LF
maximum peak of 260 °C
• Compliant to RoHS directive 2002/95/EC
• Designed and qualified for industrial level
APPLICATIONS
TO-220AC
1
Cathode
3
Anode
• Output rectification and freewheeling in inverters,
choppers and converters
• Input rectifications where severe restrictions on
conducted EMI should be met
PRODUCT SUMMARY
V
F
at 20 A
I
FSM
V
RRM
< 1.31 V
355 A
800 to 1200 V
DESCRIPTION
The VS-20ETF..PbF 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.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
V
RRM
I
F(AV)
I
FSM
t
rr
V
F
T
J
1 A, 100 A/μs
20 A, T
J
= 25 °C
Range
Sinusoidal waveform
CHARACTERISTICS
VALUES
800 to 1200
20
355
95
1.31
- 40 to 150
UNITS
V
A
ns
V
°C
VOLTAGE RATINGS
PART NUMBER
VS-20ETF08PbF
VS-20ETF10PbF
VS-20ETF12PbF
V
RRM
, MAXIMUM PEAK
REVERSE VOLTAGE
V
800
1000
1200
V
RSM
, MAXIMUM NON-REPETITIVE
PEAK REVERSE VOLTAGE
V
900
1100
1300
6
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 ms to 10 ms, no voltage reapplied
VALUES
20
300
355
450
635
6350
A
2
s
A
2
√s
A
UNITS
Document Number: 94098
Revision: 27-Apr-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
1
VS-20ETF..PbF 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
V
R
= Rated V
RRM
VALUES
1.31
11.88
0.93
0.1
6
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
25 A/μs
25 °C
Typical
VALUES
400
6.1
1.7
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
Case style TO-220AC
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)
20ETF08
g
oz.
kgf · cm
(lbf · in)
°C/W
UNITS
°C
Mounting torque
Marking device
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2
For technical questions, contact:
diodestech@vishay.com
Document Number: 94098
Revision: 27-Apr-10
VS-20ETF..PbF Soft Recovery Series
Fast Soft Recovery
Rectifier Diode, 20 A
150
35
Vishay High Power Products
Maximum Average Forward
Power Loss (W)
Maximum Allowable Case
Temperature (°C)
20ETF.. Series
R
thJC
(DC) = 0.9 K/W
140
30
25
20
180°
120°
90°
60°
30°
RMS limit
130
Ø
Conduction angle
120
30°
110
60°
90°
120°
180°
100
0
5
10
15
20
25
15
10
5
0
0
5
10
15
20
25
Ø
Conduction period
20ETF.. Series
T
J
= 150 °C
Average Forward Current (A)
Fig. 1 - Current Rating Characteristics
Average Forward Current (A)
Fig. 4 - Forward Power Loss Characteristics
150
350
20ETF.. Series
R
thJC
(DC) = 0.9 K/W
300
At any rated load condition and with
rated V
RRM
applied following surge.
Initial T
J
= 150 °C
at 60 Hz 0.0083 s
at 50 Hz 0.0100 s
Maximum Allowable Case
Temperature (°C)
Peak Half Sine Wave
Forward Current (A)
140
Ø
250
200
150
100
130
Conduction period
120
60°
110
30°
90°
120°
180°
100
0
5
10
15
20
25
30
35
DC
50
1
20ETF.. Series
10
100
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
400
180°
120°
90°
60°
30°
RMS limit
350
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
15
10
5
0
0
Peak Half Sine Wave
Forward Current (A)
300
250
200
150
100
20ETF.. Series
50
0.01
Ø
Conduction angle
20ETF.. Series
T
J
= 150 °C
5
10
15
20
25
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: 94098
Revision: 27-Apr-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
3
VS-20ETF..PbF Soft Recovery Series
Vishay High Power Products
Instantaneous Forward Current (A)
1000
Fast Soft Recovery
Rectifier Diode, 20 A
6
5
4
3
I
FM
= 10 A
2
1
0
I
FM
= 5 A
I
FM
= 1 A
0
50
100
150
200
20ETF.. Series
T
J
= 25 °C
I
FM
= 30 A
Q
rr
- Maximum Reverse
Recovery Charge (µC)
I
FM
= 20 A
100
10
T
J
= 25 °C
T
J
= 150 °C
20ETF.. Series
1
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Instantaneous Forward Voltage (V)
Fig. 7 - Forward Voltage Drop Characteristics
dI/dt - Rate of Fall of Forward Current (A/µs)
Fig. 10 - Recovery Charge Characteristics, T
J
= 25 °C
0.7
0.6
20ETF.. Series
T
J
= 25 °C
10
20ETF.. Series
T
J
= 150 °C
8
I
FM
= 30 A
I
FM
= 20 A
t
rr
- Maximum Reverse
Recovery Time (µs)
0.5
0.4
0.3
0.2
0.1
0
0
50
100
I
FM
= 30 A
I
FM
= 20 A
I
FM
= 10 A
I
FM
= 5 A
I
FM
= 1 A
Q
rr
- Maximum Reverse
Recovery Charge (µC)
6
I
FM
= 10 A
4
I
FM
= 5 A
2
I
FM
= 1 A
0
150
200
0
50
100
150
200
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. 11 - Recovery Charge Characteristics, T
J
= 150 °C
1.2
20ETF.. Series
T
J
= 150 °C
0.9
I
FM
= 30 A
I
FM
= 20 A
I
FM
= 10 A
I
FM
= 5 A
I
FM
= 1 A
25
20ETF.. Series
T
J
= 25 °C
I
FM
= 30 A
I
FM
= 20 A
I
FM
= 10 A
I
FM
= 5 A
10
I
FM
= 1 A
5
t
rr
- Maximum Reverse
Recovery Time (µs)
I
rr
- Maximum Reverse
Recovery Current (A)
200
20
15
0.6
0.3
0
0
50
100
150
0
0
50
100
150
200
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. 12 - Recovery Current Characteristics, T
J
= 25 °C
www.vishay.com
4
For technical questions, contact:
diodestech@vishay.com
Document Number: 94098
Revision: 27-Apr-10
VS-20ETF..PbF Soft Recovery Series
Fast Soft Recovery
Rectifier Diode, 20 A
35
30
20ETF.. Series
T
J
= 150 °C
I
FM
= 30 A
I
FM
= 20 A
I
FM
= 10 A
I
FM
= 5 A
Vishay High Power Products
I
rr
- Maximum Reverse
Recovery Current (A)
25
20
15
10
I
FM
= 1 A
5
0
0
50
100
150
200
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)
1
Steady state value
(DC operation)
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: 94098
Revision: 27-Apr-10
For technical questions, contact:
diodestech@vishay.com
www.vishay.com
5
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