US2AF THRU US2MF
SURFACE MOUNT ULTRA FAST RECTIFIER
Reverse Voltage - 50 to 1000 Volts Forward Current - 2.0 Amperes
FEATURES
SMAF
The plastic package carries Underwriters Laboratory
Flammability Classification 94V-0
For surface mounted applications
Ultra fast switching for high efficiency
Low reverse leakage
Built-in strain relief,ideal for automated placement
High forward surge current capability
High temperature soldering guaranteed
260 C/10 seconds at terminals
Glass passivated chip junction
Cathode Band
Top View
0.106(2.70)
0.094(2.40)
0.063(1.60)
0.051(1.30)
0.146(3.7)
0.130(3.3)
0.0091(0.23)
0.0071(0.18)
0.051(1.30)
0.043(1.10)
MECHANICAL DATA
0.051(1.30)
0.039(1.0)
0.193(4.90)
0.173(4.40)
Case: JEDEC SMAF molded plastic body over passivated chip
Terminals: Solder plated, solderable per MIL-STD-750,
Method 2026
Polarity: Color band denotes cathode end
Mounting Position: Any
Weight:0.0018 ounce, 0.064 grams
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%.
MDD Catalog Number
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
at TL=55 C
Peak forward surge current
8.3ms single half sine-wave superimposed on
rated load (JEDEC Method)
Maximum instantaneous forward voltage at 2.0A
Maximum DC reverse current
TA=25 C
at rated DC blocking voltage
TA=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
VRRM
VRMS
VDC
US2AF US2BF US2DF US2GF US2JF US2KF US2MF
50
35
50
100
70
100
200
140
200
400
280
400
600
420
600
800
560
800
1000
700
1000
UNITS
VOLTS
VOLTS
VOLTS
I(AV)
2.0
Amps
IFSM
50.0
Amps
VF
1.0
trr
RθJA
TJ,TSTG
Note:1.Reverse recovery condition IF=0.5A,IR=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
1.7
5.0
50.0
IR
CJ
1.4
50
µA
75
20.0
50.0
-50 to +150
Volts
ns
pF
C/W
C
FIG. 1- FORWARD CURRENT DERATING CURVE
2.0
1.6
1.2
Single Phase
Half Wave 60Hz
Resistive or
inductive Load
0.8
0.4
0
0
25
50
75
100
125
150
PEAK FORWARD SURGE CURRENT,
AMPERES
AVERAGE FORWARD RECTIFIED CURRENT,
AMPERES
RATINGS AND CHARACTERISTIC CURVES US2AF THRU US2MF
FIG. 2-MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
50
40
30
20
10
175
0
8.3ms SINGLE HALF SINE-WAVE
(JEDEC Method)
1
10
AMBIENT TEMPERATURE, C
TJ=25 C
PULSE WIDTH=300 µs
1%DUTY CYCLE
1
0.1
US2AF-US2DF
US2GF
US2JF-US2MF
0.01
0.2
0.6
1.0
1.4
1.8
2.0
FIG. 4-TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
INSTANTANEOUS FORWARD
CURRENT,AMPERES
FIG. 3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
20
10
1,000
100
TJ=100 C
10
1
TJ=25 C
0.1
0.01
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
TJ=25 C
10
TRANSIENT THERMAL IMPEDANCE,
C/W
FIG. 5-TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, pF
0
20
40
60
80
FIG. 6-TYPICAL TRANSIENT THERMAL IMPEDANCE
100
10
1
0.1
0.01
0.1
1
10
1
0.1
1.0
10
REVERSE VOLTAGE,VOLTS
100
PERCENT OF PEAK REVERSE VOLTAGE,%
200
100
100
NUMBER OF CYCLES AT 60 Hz
100
t,PULSE DURATION,sec.
The cruve graph is for reference only, can't be the basis for judgment(曲线图仅供参考)!
100
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