DS23026 Rev. C-2 1 of 3 SD930/SD940/SD945
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·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 @ TA = 25°C unless otherwise specified
Notes: 1. Pulse width £ µs - 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
A25.40 —
B7.20 9.50
C1.20 1.30
D4.80 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
VRRM
VRWM
VR
30 40 45 V
Maximum Average Forward Current @ TC = 120°C
(Note 2) IO9.0 A
Maximum Peak One-Cycle @ 5µs Sine Wave
Surge Current @ 10ms Sine Wave IFSM 2150
340 A
Forward Voltage (Note 1) @ IF = 9.0A, TJ = 25°C
@ IF = 9.0A, TJ = 125°C
@ IF = 18A, TJ = 25°C
@ IF = 18A, TJ = 125°C
VFM
0.48
0.42
0.57
0.52
V
Voltage Rate of Change dv/dt 10,000 V/µs
Peak Reverse Current @TJ = 25°C
at Rated DC Blocking Voltage (Note 1) @ TJ= 125°C IRM 0.8
70 mA
Maximum Junction Capacitance (Note 2) Cj900 pF
Typical Thermal Resistance Junction to Case (Note 4) RqJL 8.0 K/W
Operating and Storage Temperature Range Tj, TSTG -65 to +150 °C
DS23026 Rev. C-2 2 of 3 SD930/SD940/SD945
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0
2
4
0 50 100 150
I , AVERAGE RECTIFIED CURRENT (A)
O
T , CASE TEMPERATURE (°C)
C
Fig. 1 Fwd Current Derating Curve
6
8
10
1
1000
10000
10 100 1000 10000
PEAK F
O
RWARD SURGE CURRENT (A)
t , PULSE DURATION (ms)
p
Fig. 4, Maximum Non-repetitive Surge Current
100
1000
4000
0.1 1.0 10 100
C
,
C
APA
C
ITAN
C
E
(
pF
)
j
V , REVERSE VOLTAGE (V)
R
Fig. 3 Maximum Junction Capacitance
T = 25°C
J
f = 1MHz
0.1
1.0
10
50
0.2 0.4 0.6 0.8 1.0
I , INSTANTANE
O
US FWD CURRENT (A)
F
V , INSTANTANEOUS FWD VOLTAGE (V)
F
Fig. 2 Typical Forward Characteristics
T = 125°C
J
T=25°C
J
2% duty cycle
DS23026 Rev. C-2 3 of 3 SD930/SD940/SD945
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0.01
0.1
1.0
10
0.0001 0.001 0.01 0.1 1.0 10 100
t1
t2
P(DM)
Single Pulse
0.08
0.17
0.25
0.33
D = 0.50
0 20 40 60 80 100 120 140
I , INSTANTANEOUS REVERSE CURRENT (mA)
R
PERCENT OF RATED PEAK REVERSE VOLTAGE (%)
Fig. 6, Typical I vs. % of V
RR
T = 125ºC
j
T = 85ºC
j
T = 25ºC
j
100
10
1.0
0.1
0.01
