D
S23026 Rev. C-2 1 of 3 SD930/SD940/SD945
High Current Capability and Low Forward Drop
High Surge Capacity
Guard Ring for Transient Protection
Low Power Loss, High Efficiency
Plastic Package - UL Flammability
Classification 94V-0
Mechanical Data
Case: DO-201AD, Molded Plastic
Leads: Solderable per MIL-STD-202,
Method 208
Polarity: Cathode band
Approx. Weight: 1.1 grams
Mounting Position: Any
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Maximum Ratings and Electrical Characteristics
@ T
A
= 25C unless otherwise specified
Notes:
1. Pulse width
s - Duty Cycle 2%.
2. Measured at 1.0MHz and applied reverse voltage of 4.0V.
3. Device mounted to heat sink with 1/8" lead length.
4. Thermal Resistance from Junction to Lead Vertical PC Board Mounting, 9.5mm Lead Length.
SD930 / SD940 / SD945
HIGH CURRENT SCHOTTKY BARRIER RECTIFIER
Features
DO-201AD
Dim
Min
Max
A
25.40
--
B
7.20
9.50
C
1.20
1.30
D
4.80
5.30
All Dimensions in mm
A
A
B
C
D
Characteristic
Symbol
SD930
SD940
SD945
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
30
40
45
V
Maximum Average Forward Current
@ T
C
= 120C
(Note 2)
I
O
9.0
A
Maximum Peak One-Cycle
@ 5s Sine Wave
Surge Current
@ 10ms Sine Wave
I
FSM
2150
340
A
Forward Voltage (Note 1)
@ I
F
= 9.0A, T
J
= 25C
@ I
F
= 9.0A, T
J
= 125C
@ I
F
= 18A, T
J
= 25C
@ I
F
= 18A, T
J
= 125C
V
FM
0.48
0.42
0.57
0.52
V
Voltage Rate of Change
dv/dt
10,000
V/s
Peak Reverse Current
@T
J
= 25C
at Rated DC Blocking Voltage (Note 1)
@ T
J
= 125C
I
RM
0.8
70
mA
Maximum Junction Capacitance (Note 2)
C
j
900
pF
Typical Thermal Resistance Junction to Case (Note 4)
R
qJL
8.0
K/W
Operating and Storage Temperature Range
T
j,
T
STG
-65 to +150
C
D
S23026 Rev. C-2 2 of 3 SD930/SD940/SD945
0
2
4
0
50
100
150
I
,
A
VERA
G
ER
E
C
TIFIED
C
URRENT
(
A
)
O
T , CASE TEMPERATURE (C)
Fig. 1 Fwd Current Derating Curve
C
6
8
10
1
1000
10000
10
100
1000
10000
PEAK
F
O
R
W
ARD
SURGE
CURRENT
(A)
t , PULSE DURATION (ms)
Fig. 4, Maximum Non-repetitive Surge Current
p
100
1000
4000
0.1
1.0
10
100
C
,
CAP
ACIT
ANCE
(pF)
j
V , REVERSE VOLTAGE (V)
Fig. 3 Maximum Junction Capacitance
R
TJ = 25C
f = 1MHz
0.1
1.0
10
50
0.2
0.4
0.6
0.8
1.0
I
,
INST
ANT
ANE
O
US
FWD
CURRENT
(A)
F
V , INSTANTANEOUS FWD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
F
T = 125C
J
T = 25C
J
Pulse width = 300s
2% duty cycle
D
S23026 Rev. C-2 3 of 3 SD930/SD940/SD945
0.01
0.1
1.0
10
0.0001
0.001
0.01
0.1
1.0
10
100
THERMAL
RESIST
ANCE
R
(K/W)
QJL
t , RECTANGULAR PULSE DURATION (seconds)
Fig. 5, Typical Thermal Resistance R
1
QJL
t
1
t
2
P
(DM)
Duty Cycle, D = t / t
Peak T = P
X R
+ T
1
2
J
DM
QJL
C
Single Pulse
0.08
0.17
0.25
0.33
D = 0.50
0
20
40
60
80
100
120
140
I
,
INST
ANT
ANEOUS
REVERSE
CURRENT
(mA
)
R
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
Fig. 6, Typical I vs. % of V
R
R
T = 125C
j
T = 85C
j
T = 25C
j
100
10
1.0
0.1
0.01
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