STTH3003CW
October 1999 - Ed: 5A
HIGH FREQUENCY SECONDARY RECTIFIER
Dual center tap Fast Recovery Epitaxial Diodes
suited for Switch Mode Power Supply and high
frequency DC to DC converters.
Packaged in TO-247 this device is intended for
secondary rectification.
DESCRIPTION
COMBINES HIGHEST RECOVERY AND
REVERSE VOLTAGE PERFORMANCE
ULTRA-FAST, SOFT AND NOISE-FREE
RECOVERY
FEATURES AND BENEFITS
Symbol
Parameter
Value
Unit
V
RRM
Repetitive peak reverse voltage
300
V
I
F(RMS)
RMS forward current
30
A
I
F(AV)
Average forward current
Tc = 135
C
= 0.5
Per diode
Per device
15
30
A
I
FSM
Surge non repetitive forward current
tp = 10 ms sinusoidal
140
A
I
RSM
Non repetitive peak reverse current
tp = 20
s square
7
A
T
stg
Storage temperature range
-65 +175
C
Tj
Maximum operating junction temperature
+175
C
ABSOLUTE RATINGS (limiting values, per diode)
I
F(AV)
2 x 15 A
V
RRM
300 V
Tj (max)
175 C
V
F
(max)
1 V
trr (max)
40 ns
MAJOR PRODUCT CHARACTERISTICS
A1
K
A2
TO-247
1/5
Symbol
Parameter
Tests conditions
Min.
Typ.
Max.
Unit
I
R
*
Reverse leakage
current
V
R
= 300 V
Tj = 25
C
40
A
Tj = 125
C
40
400
V
F
**
Forward voltage drop
I
F
= 15 A
Tj = 25
C
1.25
V
Tj = 125
C
0.85
1
Pulse test : * tp = 5 ms,
< 2 %
** tp = 380
s,
< 2%
To evaluate the maximum conduction losses use the following equation :
P = 0.75 x I
F(AV)
+ 0.017 I
F
2
(RMS)
STATIC ELECTRICAL CHARACTERISTICS (per diode)
Symbol
Parameter
Value
Unit
R
th (j-c)
Junction to case
Per diode
2.0
C/W
Total
1.05
R
th (c)
Coupling
0.1
THERMAL RESISTANCES
Symbol
Tests conditions
Min.
Typ.
Max.
Unit
trr
I
F
= 0.5 A Irr = 0.25 A I
R
= 1A
Tj = 25
C
30
ns
I
F
= 1 A dI
F
/dt = - 50 A/
s V
R
= 30V
40
tfr
I
F
= 15 A dI
F
/dt = 100 A/
s
V
FR
= 1.1 x VF max.
Tj = 25
C
300
ns
V
FP
3.5
V
S
factor
Vcc = 200 V I
F
= 15 A
dI
F
/dt = 200A/
s
Tj = 125
C
0.3
-
I
RM
8.5
A
RECOVERY CHARACTERISTICS
STTH3003CW
2/5
0
2
4
6
8
10
12
14
16
18
20
0
2
4
6
8
10
12
14
16
18
20
IF(av) (A)
P1(W)
T
=tp/T
tp
= 1
= 0.5
= 0.2
= 0.1
= 0.05
Fig. 1: Conduction losses versus average current
(per diode).
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
1
10
100
200
VFM(V)
IFM(A)
Tj=125C
Tj=25C
Tj=75C
Fig. 2: Forward voltage drop versus forward
current (maximum values
,
per diode)
.
1E-3
1E-2
1E-1
1E+0
0.0
0.2
0.4
0.6
0.8
1.0
tp(s)
Zth(j-c)/Rth(j-c)
Single pulse
= 0.1
= 0.2
= 0.5
T
=tp/T
tp
Fig. 3: Relative variation of thermal impedance
junction to case versus pulse duration.
0
50
100 150 200 250 300 350 400 450 500
0
20
40
60
80
100
trr(ns)
VR=200V
Tj=125C
IF=2*IF(av)
IF=IF(av)
IF=0.5*IF(av)
dIF/dt(A/s)
Fig. 5: Reverse recovery time versus dI
F
/dt (90%
confidence, per diode).
0
50
100 150 200 250 300 350 400 450 500
0
2
4
6
8
10
12
14
16
dIF/dt(A/s)
IRM(A)
VR=200V
Tj=125C
IF=2*IF(av)
IF=IF(av)
IF=0.5*IF(av)
Fig. 4: Peak reverse recovery current versus
dI
F
/dt (90% confidence, per diode).
0
50
100 150 200 250 300 350 400 450 500
0.00
0.10
0.20
0.30
0.40
0.50
0.60
S factor
VR=200V
Tj=125C
dIF/dt(A/s)
Fig. 6: Softness factor versus dI
F
/dt (typical
values, per diode).
STTH3003CW
3/5
25
50
75
100
125
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
Tj(C)
IRM
S factor
Fig. 7: Relative variation of dynamic parameters
versus junction temperature (reference: Tj = 125C).
0
50
100 150 200 250 300 350 400 450 500
0
1
2
3
4
5
6
7
8
VFP(V)
IF=IF(av)
Tj=125C
dIF/dt(A/s)
Fig. 8: Transient peak forward voltage versus
dI
F
/dt (90% confidence, per diode).
0
50
100 150 200 250 300 350 400 450 500
0
50
100
150
200
250
300
350
400
450
500
tfr(ns)
VFR=1.1*VF max.
IF=IF(av)
Tj=125C
dIF/dt(A/s)
Fig. 9: Forward recovery time versus dI
F
/dt (90%
confidence, per diode).
STTH3003CW
4/5
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use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
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proval of STMicroelectronics.
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PACKAGE MECHANICAL DATA
TO-247
F2
F1
V2
L4
L2
L1
L3
D
L
L5
M
E
H
V
V
A
Dia.
F3
F4
G
= =
F(x3)
REF.
DIMENSIONS
Millimeters
Inches
Min.
Typ. Max. Min.
Typ. Max.
A
4.85
5.15 0.191
0.203
D
2.20
2.60 0.086
0.102
E
0.40
0.80 0.015
0.031
F
1.00
1.40 0.039
0.055
F1
3.00
0.118
F2
2.00
0.078
F3
2.00
2.40 0.078
0.094
F4
3.00
3.40 0.118
0.133
G
10.90
0.429
H
15.45
15.75 0.608
0.620
L
19.85
20.15 0.781
0.793
L1
3.70
4.30 0.145
0.169
L2
18.50
0.728
L3
14.20
14.80 0.559
0.582
L4
34.60
1.362
L5
5.50
0.216
M
2.00
3.00 0.078
0.118
V
5
5
V2
60
60
Dia.
3.55
3.65 0.139
0.143
Ordering code
Marking
Package
Weight
Base qty
Delivery mode
STTH3003CW
STTH3003CW
TO-247
4.36g
30
Tube
Cooling method: by conduction (C)
Recommended torque value: 0.8 N.m.
Maximum torque value: 1.0 N.m.
Epoxy meets UL 94,V0
STTH3003CW
5/5
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