US1A-US1M
SURFACE MOUNT ULTRA FAST RECTIFIER
FEATURES
Glass Passivated Die Construction
Super-Fast Recovery Time For High Efficiency
Low Forward Voltage Drop and High Current Capability
Ideally Suited for Automated Assembly
Plastic Material: UL Flammability Classification Rating 94V-0
DO-214AC (SMA)
MECHANICAL DATA
Case: DO-214AC Molded plastic
Terminals: Pure tin plated, lead free
Polarity: Indicated by cathode band
Weight: 70mg (approx.)
Cathode
10
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 °C ambient temperature unless otherwise specified. Single phase, half wave, 60 Hz, resistive or inductive
load. For capacitive load, derate current by 20%.
Parameter
Maximum Repetitive Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified
Current at T
A
=75 °C
Peak Forward Surge Current 8.3ms
Single Half Sine-wave Superimposed
on Rated Load (JEDEC)
Maximum Instantaneous Forward Voltage at 1 A
Maximum DC Reverse Current at
Rated DC Blocking Voltage
T
A
= 25 °C
T
A
=100 °C
Symbol
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
V
F
I
R
t
rr
C
J
R
θJL
T
J, TS
50
15.0
50.0
-65 to + 150
1.0
US1A
50
35
50
US1B
100
70
100
US1D
200
140
200
US1G
400
280
400
1.0
30.0
1.3
5.0
50.0
75
1.7
US1J
600
420
600
US1K
800
560
800
US1M
1000
700
1000
Unit
V
V
V
A
A
V
µA
nS
pF
°C/W
°C
Maximum reverse recovery time
(NOTE1)
Typical Junction Capacitance
(NOTE2)
Maximum Thermal Resistance
(NOTE3)
Operating and Storage Temperature Range
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
©GUANGDONG HOTTECH INDUSTRIAL CO.,LTD
E-mail:hkt@heketai.com
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US1A-US1M
SURFACE MOUNT ULTRA FAST RECTIFIER
Typical Characteristics
AVERAGE FORWARD RECTIFIED CURRENT,
AMPERES
PEAK FORWARD SURGE CURRENT,
AMPERES
FIG. 1- FORWARD CURRENT DERATING CURVE
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
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
FIG. 3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
FIG. 4-TYPICAL REVERSE CHARACTERISTICS
1,000
INSTANTANEOUS FORWARD
CURRENT,AMPERES
20
10
T
J
=25 C
PULSE WIDTH=300
µs
1%DUTY CYCLE
100
1
TJ=100 C
10
0.1
US1A-US1D
US1G
US1J-US1M
0.01
0.2
0.6
1.0
1.4
1.8
2.0
1
TJ=25 C
0.1
0.01
0
20
40
60
80
100
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
PERCENT OF PEAK REVERSE VOLTAGE,%
FIG. 5-TYPICAL JUNCTION CAPACITANCE
TRANSIENT THERMAL IMPEDANCE,
C/W
FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE
100
JUNCTION CAPACITANCE, pF
200
100
T
J
=25 C
10
10
1
0.1
0.01
0.1
1
10
100
1
0.1
1.0
10
100
REVERSE VOLTAGE,VOLTS
t,PULSE DURATION,sec.
©GUANGDONG HOTTECH INDUSTRIAL CO.,LTD
E-mail:hkt@heketai.com
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