Reverse Voltage - 50 to 1000 Volts
SURFACE MOUNT ULTRA FAST RECTIFIER
US1A THRU US1M
Forward Current - 1.0 Ampere
FEATURES
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The plastic package carries Underwriters Laboratory
Flammability Classification 94V-0
For surface mounted applications
Ultra fast switching for high efficiency
SMA(DO-214AC)
Low reverse leakage
Built-in strain relief,ideal for automated placement
High forward surge current capability
High temperature soldering guaranteed:
250 C/10 seconds at terminals
.062(1.60)
.055(1.40)
.114(2.90)
.098(2.50)
.181(4.60)
.157(4.00)
.012(.305)
.006(.152)
.103(2.62)
.079(2.00)
.060(1.52)
.030(0.76)
.008(.203)
.002(.051)
MECHANICAL DATA
Case
: JEDEC DO-214AC molded plastic body
Terminals
: Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity
: Color band denotes cathode end
Mounting Position
: Any
Weight
:0.003 ounce, 0.093 grams
0.004 ounce, 0.111 grams SMA(H)
.208(5.28)
.188(4.80)
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified.
Single phase half-wave 60Hz,resistive or inductive load,for capacitive load current derate by 20%.
Characteristic
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
at T
L
=90
C
Peak forward surge current
8.3ms 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
C
Maximum reverse recovery time
(NOTE 1)
Typical junction capacitance (NOTE 2)
Typical thermal resistance (NOTE 3)
Operating junction and storage temperature range
SYMBOLS
US1A US1B US1D US1G US1J
US1K US1M
UNITS
V
V
V
A
A
V
RRM
V
RMS
V
DC
I
(AV)
I
FSM
V
F
I
R
t
rr
C
J
R
JA
T
J
,
T
STG
50
35
50
100
70
100
200
140
200
400
280
400
1.0
30.0
600
420
600
800
560
800
1000
700
1000
1.0
1.3
5.0
100.0
50
15.0
50.0
-65 to +150
1.7
V
µA
75
ns
pF
C
/W
C
Note:
1.Reverse recovery condition I
F
=0.5A,I
R
=1.0A,Irr=0.25A
2.Measured at 1MHz and applied reverse voltage of 4.0V D.C.
3.P.C.B. mounted with 0.2x0.2
”
(5.0x5.0mm) copper pad areas
US1A THRU US1M
RATINGS AND CHARACTERISTIC CURVES
AVERAGE FORWARD RECTIFIED CURRENT,
AMPERES
FIG. 1- FORWARD CURRENT DERATING CURVE
PEAK FORWARD SURGE CURRENT,
AMPERES
1.0
FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
30
0.8
25
0.6
20
0.4
Single Phase
Half Wave 60Hz
Resistive or
inductive Load
15
0.2
10
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
0
0
25
50
75
100
125
150
175
5.0
1
10
100
AMBIENT TEMPERATURE, C
NUMBER OF CYCLES AT 60 Hz
FIG. 3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
20
T
J
=25 C
PULSE WIDTH=300
ms
1%DUTY CYCLE
FIG. 4-TYPICAL REVERSE CHARACTERISTICS
1,000
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
INSTANTANEOUS FORWARD
CURRENT,AMPERES
10
100
TJ=100 C
10
1
0.1
US1A-US1D
US1G
US1J-US1M
0.2
0.6
1.0
1.4
1.8
2.0
1
TJ=25 C
0.1
0.01
0.01
INSTANTANEOUS FORWARD VOLEAGE,
VOLTS
0
20
40
60
80
100
PERCENT OF PEAK REVERSE VOLTAGE,%
FIG. 5-TYPICAL JUNCTION CAPACITANCE
TRANSIENT THERMAL IMPEDANCE,
C/W
200
100
T
J
=25 C
100
FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE
JUNCTION CAPACITANCE, pF
10
10
1
0.1
1
0.01
0.1
1
10
100
0.1
1.0
10
100
REVERSE VOLTAGE,VOLTS
t,PULSE DURATION,sec.
PCB Design
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