March 2007 Rev 3 1/10
STTH1R02
Ultrafast recovery diode
Main product characteristics
Features and benefits
■Very low conduction losses
■Negligible switching losses
■Low forward and reverse recovery times
■High junction temperature
Description
The STTH1R02 uses ST's new 200 V planar Pt
doping technology, and it is specially suited for
switching mode base drive and transistor circuits.
Packaged in DO-41, DO-15, SMA, and SMB, this
device is intended for use in low voltage, high
frequency inverters, free wheeling and polarity
protection.
Order codes
IF(AV) 1.5 A
VRRM 200 V
Tj (max) 175° C
VF (typ) 0.7 V
trr (typ) 15 ns
Part Number Marking
STTH1R02 STTH1R02
STTH1R02RL STTH1R02
STTH1R02A R1A
STTH1R02Q STTH1R02Q
STTH1R02QRL STTH1R02Q
STTH1R02U 1R2S
KA
KK
AA
SMA
STTH1R02A
SMB
STTH1R02U
KK
AA
DO-41
STTH1R02
DO-15
STTH1R02Q
www.st.com
Characteristics STTH1R02
2/10
1 Characteristics
To evaluate the conduction losses use the following equation:
P = 0.68 x IF(AV) + 0.08 IF2(RMS)
Table 1. Absolute ratings (limiting values at Tj = 25° C, unless otherwise specified)
Symbol Parameter Value Unit
VRRM Repetitive peak reverse voltage 200 V
IFRM Repetitive peak forward current
DO-41(1)
tp = 5 µs, F = 5 kHz
30 ADO-15(1)
SMA / SMB
IF(RMS) RMS forward current DO-41 / DO-15 50 A
SMA /SMB
IF(AV) Average forward current, δ = 0.5
DO-41 Tlead = 110° C
1.5 A
DO-15 Tlead = 110° C
SMA Tc = 110° C
SMB Tc = 110° C
IFSM Surge non repetitive forward current tp = 10 ms Sinusoidal 60 A
Tstg Storage temperature range -65 to + 175 °C
TjMaximum operating junction temperature 175 °C
1. On infinite heatsink with 10 mm lead length
Table 2. Thermal parameters
Symbol Parameter Value Unit
Rth(j-l) Junction to lead Lead Length = 10 mm on infinite heatsink DO-41 45
°C/W
DO-15 45
Rth(j-c) Junction to case SMA 30
SMB 30
Table 3. Static electrical characteristics
Symbol Parameter Test conditions Min. Typ Max. Unit
IR(1) Reverse leakage current Tj = 25° C VR = VRRM
3µA
Tj = 125° C 2 20
VF(2) Forward voltage drop
Tj = 25° C IF = 4.5 A 1.2
V
Tj = 25° C
IF = 1.5 A
0.89 1
Tj = 100° C 0.76 0.85
Tj = 150° C 0.70 0.80
1. Pulse test: tp = 5 ms, δ < 2 %
2. Pulse test: tp = 380 µs, δ < 2 %
STTH1R02 Characteristics
3/10
Table 4. Dynamic characteristics
Symbol Parameter Test conditions Min. Typ Max. Unit
trr Reverse recovery time
IF = 1 A, dIF/dt = -50 A/µs,
VR = 30 V, Tj = 25° C 23 30
ns
IF = 1 A, dIF/dt = -100 A/µs,
VR = 30 V, Tj = 25° C 15 20
IRM Reverse recovery current IF = 1.5 A, dIF/dt = -200 A/µs,
VR = 160 V, Tj = 125° C 34 A
tfr Forward recovery time IF = 1.5 A, dIF/dt = 100 A/µs
VFR = 1.1 x VFmax, Tj = 25° C 50 ns
VFP Forward recovery voltage IF = 1.5 A, dIF/dt = 100 A/µs,
Tj = 25° C 2.1 V
Figure 1. Peak current versus duty cycle Figure 2. Forward voltage drop versus
forward current (typical values)
0
5
10
15
20
25
30
35
40
45
50
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
I
M
(A)
T
d
=tp/T tp
IM
T
δ
=tp/T tp
IM
P = 2 WP = 2 W
P = 1 WP = 1 W
P = 5 WP = 5 W
δ
0
10
20
30
40
50
0.0 0.5 1.0 1.5 2.0 2.5
I
FM
(A)
Tj=25°C
Tj=150°C
VFM(V)
Figure 3. Forward voltage drop versus
forward current (maximum values)
Figure 4. Relative variation of thermal
impedance junction to case versus
pulse duration (SMA)
0
10
20
30
40
50
0.0 0.5 1.0 1.5 2.0 2.5
I
FM
(A)
Tj=25°C
Tj=150°C
VFM(V)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03
Z
th(j-a)
/R
th(j-a)
Single pulse
SMA
Scu=1cm²
tP(s)
Characteristics STTH1R02
4/10
Figure 5. Relative variation of thermal
impedance junction to case versus
pulse duration (SMB)
Figure 6. Relative variation of thermal
impedance junction to case versus
pulse duration (DO-41)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03
Z
th(j-a)
/R
th(j-a)
Single pulse
SMB
Scu=1cm²
tP(s)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03
Z
th(j-a)
/R
th(j-a)
Single pulse
DO-41
Lleads=10mm
tP(s)
Figure 7. Relative variation of thermal
impedance junction to case versus
pulse duration (DO-15)
Figure 8. Junction capacitance versus
reverse applied voltage (typical
values)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03
Z
th(j-a)
/R
th(j-a)
Single pulse
DO-15
Leads =10mm
tP(s)
1
10
100
1 10 100 1000
C(pF)
F=1MHz
Vosc=30mVRMS
Tj=25°C
VR(V)
Figure 9. Reverse recovery charges
versus dIF/dt (typical values)
Figure 10. Reverse recovery time versus dIF/dt
(typical values)
0
10
20
30
40
50
60
70
80
10 100 1000
Q
RR
(nC)
IF=1.5A
VR=160V
Tj=125°C
Tj=25°C
dIF/dt(A/µs)
0
10
20
30
40
50
60
70
80
10 100 1000
t
RR
(ns)
IF=1.5A
VR=160V
Tj=125°C
Tj=25°C
dIF/dt(A/µs)
STTH1R02 Characteristics
5/10
Figure 11. Peak reverse recovery curent
versus dIF/dt (typical values)
Figure 12. Dynamic parameters versus
junction temperature
0
1
2
3
4
5
6
7
8
10 100 1000
I
RM
(A)
IF=1.5A
VR=160V
Tj=125°C
Tj=25°C
dIF/dt(A/µs)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
25 50 75 100 125 150
Q
RR
;I
RM
[T
j
]/Q
RR
;I
RM
[T
j
=125°C]
IRM
QRR
IF=1.5A
VR=160V
Tj(°C)
Figure 13. Thermal resistance, junction to
ambient, versus copper surface
under each lead - SMA (Epoxy FR4,
copper thickness = 35 µm)
Figure 14. Thermal resistance, junction to
ambient, versus copper surface
under each lead - SMB (Epoxy FR4,
copper thickness = 35 µm)
0
20
40
60
80
100
120
012345
R
th(j-a)
(°C/W)
SMA
SCU(cm²)
0
10
20
30
40
50
60
70
80
90
100
110
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
R
th(j-a)
(°C/W)
SMB
SCU(cm²)
Figure 15. Thermal resistance, junction to
ambient, versus copper surface
under each lead - DO 15 (Epoxy
FR4, copper thickness = 35 µm)
Figure 16. Thermal resistance, junction to
ambient, versus copper surface
under each lead - DO-41 (Epoxy
FR4, copper thickness = 35 µm)
0
10
20
30
40
50
60
70
80
90
100
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
R
th(j-a)
(°C/W)
DO-15
SCU(cm²)
0
10
20
30
40
50
60
70
80
90
100
012345678910
R
th(j-a)
(°C/W)
DO-41
S(cm²)
Ordering information scheme STTH1R02
6/10
2 Ordering information scheme
3 Package information
●Epoxy meets UL94, V0
STTH 1 R 02 XX
Ultrafast switching diode
Average forward current
1 = 1 A
02 = 200 V
Blank = DO-41 in Ammopack
RL = DO-41 in Tape and reel
A = SMA in Tape and reel
Q = DO-15 in Ammopack
QRL = DO-15 in Tape and reel
U = SMB in Tape and reel
Model R
Repetitive peak reverse voltage
Package
Table 5. DO-41 dimensions
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 4.1 5.20 0.160 0.205
B 2 2.71 0.080 0.107
C25.4 1
D 0.712 0.863 0.028 0.034
Table 6. DO-15 dimensions
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 6.05 6.75 0.238 0.266
B 2.95 3.53 0.116 0.139
C 26 31 1.024 1.220
D 0.71 0.88 0.028 0.035
ØD ØB
A
CC
D
B
A
CC
STTH1R02 Package information
7/10
Figure 17. SMA footprint (dimensions in mm)
Table 7. SMA dimensions
REF.
DIMENSIONS
Millimeters Inches
Min. Max. Min. Max.
A1 1.90 2.03 0.075 0.080
A2 0.05 0.20 0.002 0.008
b 1.25 1.65 0.049 0.065
c 0.15 0.41 0.006 0.016
E 4.80 5.60 0.189 0.220
E1 3.95 4.60 0.156 0.181
D 2.25 2.95 0.089 0.116
L 0.75 1.60 0.030 0.063
1.67
4.94
1.73 1.48 1.73
Package information STTH1R02
8/10
Figure 18. SMB footprint (dimensions in mm)
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
Table 8. SMB dimensions
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A1 1.90 2.45 0.075 0.096
A2 0.05 0.20 0.002 0.008
b 1.95 2.20 0.077 0.087
c 0.15 0.41 0.006 0.016
E 5.10 5.60 0.201 0.220
E1 4.05 4.60 0.159 0.181
D 3.30 3.95 0.130 0.156
L 0.75 1.60 0.030 0.063
E
C
L
E1
D
A1
A2
b
1.64
6.10
2.23
2.30
2.23
STTH1R02 Ordering information
9/10
4 Ordering information
5 Revision history
Part Number Marking Package Weight Base qty Delivery mode
STTH1R02 STTH1R02 DO-41 0.34 g 2000 Ammopack
STTH1R02RL STTH1R02 DO-41 0.34 g 5000 Tape and reel
STTH1R02A R1A SMA 0.068 g 5000 Tape and reel
STTH1R02Q STTH1R02Q DO-15 0.49 g 1000 Ammopack
STTH1R02QRL STTH1R02Q DO-15 0.49 g 6000 Tape and reel
STTH1R02U 1R2S SMB 0.11 g 2500 Tape and reel
Date Revision Description of changes
03-May-2006 1 First issue
13-Oct-2006 2 Added DO-15 and SMB packages.
08-Mar-2007 3 Replaced Figure 8. Replaced ecu with copper thickness.
STTH1R02
10/10
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