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February 2007 Rev 3 1/8
8
STPS3L40
Power Schottky rectifier
Main product characteristics
Features and Benefits
■ Negligible switching losses
■ Low thermal resistance
■ Low forward voltage drop
■ Avalanche capability specified
Description
Schottky rectifier suited for switched mode power
supplies and high frequency DC to DC
converters. Packaged in SMC, and low profile
SMB, this device is intended for use in DC/DC
chargers.
Order codes
I
F(AV)
3 A
V
RRM
40 V
T
j
(max) 150° C
V
F
(max) 0.44 V
Part Number Marking
STPS3L40S S3L4
STPS3L40UF FS3L4
K
A
K
A
SMC
STPS3L40S
SMB flat
STPS3L40UF
Table 1. Absolute Ratings (limiting values)
Symbol Parameter Value Unit
V
RRM
Repetitive peak reverse voltage 40 V
I
F(AV)
Average forward current
SMC T
L
= 120° C δ = 0.5
3A
SMB flat T
L
= 130° C δ = 0.5
I
FSM
Surge non repetitive forward current t
p
= 10 ms sinusoidal 75 A
P
ARM
Repetitive peak avalanche power t
p
= 1 µs Tj = 25° C 1300 W
T
stg
Storage temperature range -65 to + 175 °C
T
j
Operating junction temperature
(1)
1. condition to avoid thermal runaway for a diode on its own heatsink
150 °C
d
Ptot
dTj
-
--------------
1
Rth j a–()
--------------------------
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