PSD490 thru PSD491
SURFACE MOUNT SCHOTTKY BARRIER DIODES
SCHOTTKY BARRIER RECTIFIERS 1.0A MPERES 20~40 VOLTS
SC-59
1.06(2.70)
1.22(3.10)
.049(1.25)
.065(1.65)
3
.089(2.25)
1.18(3.00)
TOP VIEW
2
1
.051(1.30)
0.67(1.70)
.014(0.35)
.020(0.50)
.067(1.7)
.090(2.30)
.039(1.00)
0.00
.004(0.10)
.051(1.30)
.008(0.20)
.024(0.60)
.004(0.10)
.010(0.26)
FEATURES
Low Turn-on Voltage
Fast Switching
PN Junction Guard Ring for Transient and
ESD Protection
MECHANICAL DATA
Case SOT-346/SC-59 Molded Plastic
Terminals Solderable per MIL-STD-202, Method 208
Polarity See Diagrams Below
Weight 0.008gram (approx)
Mounting Position Any
MAXIMUM RATIXGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load
For capacitive load, derate current by 20%
TYPE NUMBER
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
Peak Forward Surge Current 8.3mm Single Half Sine-Wave
Superimposed on Rated Load (JEDEC Method)
Maximum Instantaneous Forward Voltage at 1.0A
Maximum DC Reverse Current T
A
=25 C
at Rated DC Blocking Voltage T
A
=100
0
C
Operating Temperature Range T
J
Storage Temperature Range T
STG
0
PSD491
20
14
20
1.0
3.0
0.45
0.2
4.0
PSD490
40
28
40
UNITS
Volts
Volts
Volts
A
A
0.53
V
mA
0
-25 to +125
-50 to +125
C
C
0
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