W TE
PO WE R SEM IC O ND U C TO RS
US1A 鈥?US1K
1.0A SURFACE MOUNT ULTRA FAST RECTIFIER
Features
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Glass Passivated Die Construction
Ideally Suited for Automatic Assembly
Low Forward Voltage Drop, High Efficiency
Surge Overload Rating to 30A Peak
Low Power Loss
Ultra-Fast Recovery Time
Plastic Case Material has UL Flammability
Classification Rating 94V-O
B
D
A
F
C
H
G
E
Mechanical Data
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Case: Molded Plastic
Terminals: Solder Plated, Solderable
per MIL-STD-750, Method 2026
Polarity: Cathode Band or Cathode Notch
Marking: Type Number
Weight: 0.064 grams (approx.)
SMA/DO-214AC
Dim
Min
Max
A
2.50
2.90
B
4.00
4.60
C
1.40
1.60
D
0.152
0.305
E
4.80
5.28
F
2.00
2.44
G
0.051
0.203
H
0.76
1.52
All Dimensions in mm
Maximum Ratings and Electrical Characteristics
Characteristic
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Average Rectified Output Current
@T
L
= 100擄C
Symbol
V
RRM
V
RWM
V
R
V
R(RMS)
I
O
US1A
@T
A
=25擄C unless otherwise specified
US1B
US1D
US1G
US1J
US1K
Unit
50
35
100
70
200
140
1.0
400
280
600
420
800
560
V
V
A
Non-Repetitive Peak Forward Surge Current
8.3ms Single half sine-wave superimposed on
rated load (JEDEC Method)
@T
A
= 55擄C
Forward Voltage
Peak Reverse Current
At Rated DC Blocking Voltage
Reverse Recovery Time (Note 1)
Typical Junction Capacitance (Note 2)
Typical Thermal Resistance (Note 3)
Operating and Storage Temperature Range
@I
F
= 1.0A
@T
A
= 25擄C
@T
A
= 100擄C
I
FSM
V
FM
I
RM
t
rr
C
j
R
JL
T
j,
T
STG
50
1.0
30
1.4
10
500
100
15
30
-50 to +150
1.7
A
V
碌A(chǔ)
nS
pF
K/W
擄C
Note: 1. Measured with I
F
= 0.5A, I
R
= 1.0A, I
rr
= 0.25A,
2. Measured at 1.0 MHz and applied reverse voltage of 4.0 V DC.
3. Mounted on P.C. Board with 8.0mm
2
land area.
US1A 鈥?US1K
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漏 2002 Won-Top Electronics
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