Diodes DFLS140Q - Manual (Page 2)

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DFLS140Q
Document number: DS37062 Rev. 1 - 2
2 of 5
www.diodes.com
March 2014
© Diodes Incorporated
DFLS140Q
Maximum Ratings
(@T
A
= +25°C, unless otherwise specified.)
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.
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
Average Forward Current @ T
T
= +119°C I
F(AV)
1.1 A
Non-Repetitive Peak Forward Surge Current 8.3ms
Single Half Sine-Wave Superimposed on Rated Load
I
FSM
40 A
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 6) P
D
1.67 W
Power Dissipation (Note 7) P
D
556 mW
Thermal Resistance Junction to Ambient (Note 6) R
θJA
60 °C/W
Thermal Resistance Junction to Ambient (Note 7) R
θJA
180 °C/W
Thermal Resistance Junction to Soldering (Note 8) R
θJS
10 °C/W
Operating Temperature Range T
J
-55 to +125 °C
Storage Temperature Range T
STG
-55 to +150 °C
Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol Min Typ Max Unit Test Condition
Reverse Breakdown Voltage (Note 9) V
(BR)R
40   V I
R
= 20μA
Forward Voltage V
F

 0.45
0.53 0.51 

V
I
F
= 0.5A
I
F
=1.1A
Leakage Current (Note 9) I
R

 
 20
6.0
μA
mA
V
R
= 40V, T
J
= +25°C
V
R
= 40V, T
J
= +100°C
Total Capacitance C
T
 28  pF V
R
= 10V, f = 1.0MHz
Notes: 6. Part mounted on 50.8mm X 50.8mm GETEK board with 25.4mm X 25.4mm copper pad, 25% anode, 75% cathode. T
A
= +25°C
7. Part mounted on FR-4 board with 1.8mm X 2.5mm cathode and 1.8mm X 1.2mm anode, 1 oz. copper pads. T
A
= +25°C
8. Theoretical R
θJS
calculated from the top center of the die straight down to the PCB/cathode tab solder junction.
9. Short duration pulse test used to minimize self-heating effect.
0.001
0.01
10
1
0.1
0.2 0 0.4 0.6 0.8 1.0 1.4 1.2 1.6
I,
IN
S
TAN
TANE
O
U
S
F
O
R
WA
R
D
C
U
R
R
EN
T
(A
)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 1 Typical Forward Characteristics
F
0.0001
0.001
10
10,000
10 5 15 20 30 40
V , INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 2 Typical Reverse Characteristics
R
25 35
0.01
0.1
1.0
100
1,000