Maximum ratings, Thermal characteristics, Electrical characteristics – Diodes SDM20U40 User Manual
Page 2: Sdm20u40
SDM20U40
Document number: DS30393 Rev. 10 - 2
2 of 4
May 2013
© Diodes Incorporated
SDM20U40
Maximum Ratings
(@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol
Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
40 V
RMS Reverse Voltage
V
R(RMS)
28 V
Forward Continuous Current (Note 7)
I
FM
250 mA
Non-Repetitive Peak Forward Surge Current
@ t
1.0s
I
FSM
1.0 A
Thermal Characteristics
Characteristic Symbol
Value Unit
Power Dissipation (Note 7)
P
D
150 mW
Thermal Resistance, Junction to Ambient Air (Note 7)
R
JA
667
C/W
Operating and Storage Temperature Range
T
J
, T
STG
-65 to +125
C
Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol
Min
Typ
Max
Unit
Test
Conditions
Reverse Breakdown Voltage (Note 8)
V
(BR)R
40
V
I
R
= 10µA
Forward Voltage Drop
V
F
0.35
0.37
0.60
V
I
F
= 10mA
I
F
= 20mA
I
F
= 200mA
Peak Reverse Current (Note 8)
I
R
5
1
µA
µA
V
R
= 30V
V
R
= 10V
Total Capacitance
C
T
50
pF
V
R
= 0V, f = 1.0MHz
Reverse Recovery Time
t
rr
10
ns
I
F
= I
R
= 200mA,
I
rr
= 0.1 x I
R
, R
L
= 100
Notes:
7. Device mounted on FR-4 board with recommended pad layout, which can be found on our website at
8. Short duration pulse test used so as to minimize self-heating effect.
0.001
0.01
0.1
1
10
1,000
100
0
200
400
600
800
V , INSTANTANEOUS FORWARD VOLTAGE (mV)
Figure 1 Typical Forward Characteristics
F
I,
I
N
S
TA
N
TA
N
E
O
U
S F
O
R
WA
R
D
C
U
R
R
E
N
T
(m
A
)
F
T = 25°C
A
T = 75°C
A
T = 125°C
A
T = -25°C
A
1
10
20
30
40
V , INSTANTANEOUS REVERSE VOLTAGE (V)
Figure 2 Typical Reverse Characteristics
R
0.001
0.01
0.1
1
10
100
1,000
T = 25°C
A
T = 75°C
A
T = 125°C
A
T = -25°C
A
I
, INST
AN
TA
NEO
U
S REVERS
E
CURR
ENT
(µ
A)
R