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SDM20E40C
Document number: DS30276 Rev. 9 - 2
2 of 4
www.diodes.com
May 2012
? Diodes Incorporated
SDM20E40C
Maximum Ratings
@TA
= 25°C unless otherwise specified
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
40 V
RMS Reverse Voltage
VR(RMS)
28 V
Forward Continuous Current (Note 6)
IFM
0.4 A
Non-Repetitive Peak Forward Surge Current @ t = 8.3ms
IFSM
2 A
Repetitive peak Forward Current
IFRM
500 mA
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 6)
PD
400 mW
Operating Temperature Range
TOP
-30 to +85
°C
Junction Temperature Range
TJ
-30 to +125
°C
Storage Temperature Range
TSTG
-40 to +125
°C
Electrical Characteristics
@TA
= 25°C unless otherwise specified
Characteristic Symbol Min Typ Max Unit Test Condition
Reverse Breakdown Voltage (Note 7)
V(BR)R
40
?
?
V
IR
= 500
μA
Forward Voltage
VF
?
?
?
?
300
500
mV
IF
= 10mA
IF
= 200mA
Leakage Current (Note 7)
IR
?
?
70
μA
VR
= 25V
Total Capacitance
CT
?
?
100 pF VR
= 0V, f = 1.0MHz
Notes: 6. Mounted on FR4 PC Board with recommended pad layout which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
7. Short duration pulse test used to minimize self-heating effect.
0.10
1.0
10
100
1,000
I , INS
T
AN
T
ANE
O
U
S
F
O
R
WA
R
D
C
U
R
R
EN
T
(mA)
F
V , INSTANTANEOUS FORWARD VOLTAGE (mV)R
Fig. 1 Typical Forward Characteristics
100 200 300 400 500 600 700
0102030
40
I, INS
T
AN
T
ANE
O
U
S
R
EVE
R
SE
C
U
R
R
EN
T
(uA)
R
V , INSTANTANEOUS REVERSE VOLTAGE (V)R
Fig. 2 Typical Reverse Characteristics
T = 0oCA
T = 125oCA
T = 75oCA
T = 25oCA
1,000
100
10
1
0.1
10,000
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