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Features
STTH2002
Ultrafast recovery diode
■ Ultrafast switching
■ Low reverse current
■ Low thermal resistance
■ Reduces switching and conduction losses
■ High T
■
■ Capacitance: 7 pF
j
Insulating voltage: 2500 V rms
Description
This single rectifier is suited for switch mode
power supply and high frequency DC to DC
converters. Packaged in D
insulated TO-220AC, this device is intended for
low voltage, high frequency inverters, free
wheeling and polarity protection applications
2
PAK, TO-220AC and
K
STTH2002D
A
K
TO-220AC
A
K
NC
STTH2002G
K
A
K
TO-220ACins
STTH2002DI
A
D2PA K
Table 1. Device summary
Symbol Value
I
F(AV)
V
RRM
(max) 175 °C
T
j
(typ) 0.86 V
V
F
t
(typ) 16 ns
rr
September 2011 Doc ID 12365 Rev 2 1/10
20 A
200 V
www.st.com
10
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Characteristics STTH2002
1 Characteristics
Table 2. Absolute ratings (limiting values at T
= 25 °C, unless otherwise specified)
j
Symbol Parameter Value Unit
V
I
F(RMS)
I
F(AV)
I
T
Table 3. Thermal parameters
Repetitive peak reverse voltage 200 V
RRM
Forward rms current 35 A
T
Average forward current, δ = 0.5
TO-220AC, D2PA K
TO-220ACins
Surge non repetitive forward current tp = 10 ms sinusoidal 175 A
FSM
Storage temperature range -65 to + 175 °C
stg
Maximum operating junction temperature 175 °C
T
j
= 120 °C
c
= 60 °C
T
c
20 A
Symbol Parameter Value Unit
TO-220AC, D2PA K 2 . 4
R
Table 4. Static electrical characteristics
th(j-c)
Junction to case
TO-220ACins 5
°C/W
Symbol Parameter Test conditions Min. Typ. Max. Unit
(1)
I
V
1. Pulse test: tp = 5 ms, δ < 2 %
2. Pulse test: t
Reverse leakage current
R
(2)
Forward voltage drop
F
= 380 µs, δ < 2 %
p
Tj = 25 °C
VR = V
= 20 A
I
F
= 25 A
I
F
RRM
11.1
= 125 °C 10 100
T
j
Tj = 25 °C
T
= 150 °C 0.86 0.95
j
= 25 °C
T
j
Tj = 125 °C 0.94 1.05
T
= 150 °C 0.9 1
j
10
1.15
µA
V
To evaluate the conduction losses use the following equation:
P = 0.75 x I
2/10 Doc ID 12365 Rev 2
F(AV)
+ 0.01 I
F2(RMS)
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STTH2002 Characteristics
Table 5. Dynamic characteristics
Symbol Parameter
t
rr
I
RM
t
fr
V
FP
Reverse recovery time
Reverse recovery current
Forward recovery time
Forward recovery voltage
Test conditions
I
= 1 A, dIF/dt = -200 A/µs,
F
= 30 V, Tj = 25 °C
V
R
= 1 A, dIF/dt = -50 A/µs,
I
F
= 30 V, Tj = 25 °C
V
R
I
= 20 A, dIF/dt = 100 A/µs,
F
VR = 160 V, Tj = 125 °C
= 20 A, dIF/dt = 100 A/µs
I
F
= 1.1 x V
V
FR
= 20 A, dIF/dt = 100 A/µs,
I
F
= 1.1 x V
V
FR
, Tj = 25 °C
Fmax
, Tj = 25 °C
Fmax
Min. Typ. Max. Unit
16 20
33 40
810A
230 ns
2V
Figure 1. Peak current versus duty cycle Figure 2. Forward voltage drop versus
forward current (typical values)
IM(A)
100
80
60
40
20
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
P = 10 WP = 10 W
P = 5 WP = 5 W
P = 3 WP = 3 W
δ
T
T
I
I
M
M
=tp/T
=tp/T
d
δ
tp
tp
IFM(A)
200
180
160
140
120
100
80
60
40
20
0
0.0 0.5 1.0 1.5 2.0 2.5
Tj=150°C
Tj=25°C
VFM(V)
ns
Figure 3. Forward voltage drop versus
forward current (maximum values)
IFM(A)
200
180
160
140
120
100
80
60
40
20
0
0.0 0.5 1.0 1.5 2.0 2.5
Tj=150°C
Tj=25°C
VFM(V)
Figure 4. Relative variation of thermal
impedance, junction to case,
versus pulse duration
Z
th(j-c)/Rth(j-c)
1.0
Single pulse
TO-220AC
TO-220ACins
D²PAK
0.1
1.E-03 1.E-02 1.E-01 1.E+00
Doc ID 12365 Rev 2 3/10
tp(s)