SD930 / SD940 / SD945
HIGH CURRENT SCHOTTKY BARRIER RECTIFIER
Features
• High Current Capability and Low Forward Drop
• High Surge Capacity
• Guard Ring for Transient Protection
• Low Power Loss, High Efficiency
• Lead Free Finish, RoHS Compliant (Note 1)
Mechanical Data
• Case: DO-201AD
• Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020D
• Terminals: Finish ⎯ Tin. Leads Solderable per MIL-STD-202,
Method 208
• Polarity: Cathode Band
• Mounting Position: Any
• Ordering Information: See Page 3
• Weight: 1.1 grams (approximate)
Top View
Maximum Ratings @TA = 25°C unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.
Characteristic Symbol SD930 SD940 SD945 Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR 30 40 45 V
Voltage Rate of Change dv/dt 10,000 V/µs
Maximum Average Forward Current @ TC = 120°C
(Note 3) IO 9.0 A
Maximum Peak One-Cycle @ 5µs Sine Wave
Surge Current @ 10ms Sine Wave IFSM 2150
340 A
Thermal Characteristics
Characteristic Symbol Value Unit
Typical Thermal Resistance Junction to Case (Note 2) RθJL 8.0 K/W
Operating and Storage Temperature Range TJ, TSTG -65 to +150 °C
Electrical Characteristics @TA = 25°C unless otherwise specified
Characteristic Symbol Min Typ Max Unit Test Condition
Forward Voltage (Note 4) VF -
-
-
-
-
-
-
-
0.48
0.42
0.57
0.52
V
IF = 9.0A, TJ = 25°C
IF = 9.0A, TJ = 125°C
IF = 18A, TJ = 25°C
IF = 18A, TJ = 125°C
Peak Reverse Current (Note 4) IR -
- -
- 0.8
70 mA @ Rated VR, TA = 25°C
@ Rated VR, TA = 100°C
Total Capacitance CT - - 900 pF VR = 4V, f = 1MHz
Notes: 1. RoHS revision 13.2.2003. Glass and high temperature solder exemptions applied, see EU Directive Annex Notes 5 and 7.
2. Thermal resistance from junction to lead vertical PC board mounting, 9.5mm lead length.
3. Device mounted to heat sink with 1/8" lead length.
4. Pulse width ≤ μs - Duty Cycle ≤ 2%.
5. Short duration pulse test used to minimize self-heating effect.
SD930 / SD940 / SD945
Document number: DS23026 Rev. 5 - 2 1 of 3
www.diodes.com May 2008
© Diodes Incorporated
SD930 / SD940 / SD945
SD930 / SD940 / SD945
Document number: DS23026 Rev. 5 - 2 2 of 3
www.diodes.com May 2008
© Diodes Incorporated
0
2
4
050100
I, AVE
150
R
A
G
E
R
E
C
T
IFIE
D
C
U
R
R
E
N
T
(A)
O
T , CASE TEMPERATURE (°C)
Fig. 1 Forward Current Derating Curve
C
6
8
10
0.1
1.0
10
50
0.2 0.4 0.6 0.8 1.0
I, I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
WA
R
D
C
U
R
R
E
N
T
(A)
F
V , INSTANTANEOUS FORW ARD VOLTAGE (V)
Fig . 2 Typical Forw ar d Characteristics
F
T = 125°C
J
T = 25°C
J
2% duty cycle
100
1,000
4,000
0.1 1.0 10 100
C
,
C
A
P
A
C
I
T
AN
C
E (p
F
)
j
V , REVERSE VOL TAGE (V)
Fig. 3 Maximum Junction Capacitance
R
TJ = 25°C
f = 1MHz
1
1,000
10,000
10 100 1,000 10,000
P
EAK F
O
R
WA
R
D S
U
R
G
E
C
U
R
R
EN
T
(A)
t , PULSE DURATION (ms)
Fi g. 4 Max i m u m Non- r e pet itiv e Sur g e Curr ent
p
0.01
0.1
1.0
10
0.0001 0.001 t , RECTANGULAR PULS E DURATION (s)
Fig . 5 T ypical T herma l R esistan c e R
1
JL
θ
0.1 1.0 10 1000.01
T
H
E
R
MAL
R
ESIS
T
AN
C
E
R
(K/W)
θ
JL
SD930 / SD940 / SD945
0 20 40 60 80 100 120 140
I, I
N
S
T
A
N
T
A
N
E
O
U
S
R
EVE
R
SE
C
U
R
R
E
N
T
(mA)
R
PERCENT OF RATED PEAK REVERSE VOL TAGE (%)
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
Ordering Information (Note 6)
Part Number Case Packaging
SD930-B DO-201AD 500/Bulk
SD930-T DO-201AD 1.2K/Tape & Reel, 13-inch
SD940-B DO-201AD 500/Bulk
SD940-T DO-201AD 1.2K/Tape & Reel, 13-inch
SD945-B DO-201AD 500/Bulk
SD945-T DO-201AD 1.2K/Tape & Reel, 13-inch
Notes: 6. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Package Outline Dimensions
SD930 / SD940 / SD945
Document number: DS23026 Rev. 5 - 2 3 of 3
www.diodes.com May 2008
© Diodes Incorporated
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated does not assume an y liability arising out of the application or use of any product
described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall
assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website,
harmless against all damages. LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.
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
