Diodes DFLS240LQ - Manual (Page 2)

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DFLS240LQ
Document number: DS37066 Rev. 1 - 2
2 of 5
www.diodes.com
March 2014
© Diodes Incorporated
DFLS240LQ
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 I
F(AV)
2.0 A
Non-Repetitive Peak Forward Surge Current 8.3ms
Single Half Sine-Wave Superimposed on Rated Load
I
FSM
50 A
Thermal Characteristics
Characteristic Symbol Typ Max 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
JA
60  °C/W
Thermal Resistance Junction to Ambient (Note 7) R
JA
180  °C/W
Thermal Resistance Junction to Soldering (Note 8) R
JS
 5 °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 10) V
(BR)R
40   V I
R
= 500µA, T
A
= +25°C
Forward Voltage V
F


 0.4
0.45
0.50
0.45
0.50
0.65
V
I
F
= 1.0A, T
A
= +25°C
I
F
= 2.0A, T
A
= +25°C
I
F
= 3.0A, T
A
= +25°C
Leakage Current (Note 10) I
R



 


 0.1
10
0.05
5
mA
V
R
= 40V, T
A
= +25°C
V
R
= 40V, T
A
= +85°C
V
R
= 20V, T
A
= +25°C
V
R
= 20V, T
A
= +85°C
Total Capacitance C
T
 90  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.
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.
8. Theoretical R
ΘJS
calculated from the top center of the die straight down to the PCB cathode tab solder junction.
9. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at http://www.diodes.com/products/lead_free.html.
10. Short duration pulse test used to minimize self-heating effect.