US3DFUS3BF US3GFUS3AF
US3AF THRU US3MF
SURFACE MOUNT ULTRA FAST RECTIFIER
Reverse Voltage - 50 to 1000 Volts Forward Current -
3.0 Amperes
FEATURES
MECHANICAL DATA
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
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
VOLTS
VOLTS
VOLTS
SYMBOLS
UNITS
Amps
Amps
Volts
VRRM
VRMS
VDC
I(AV)
IFSM
VF
3.0
100.0
1.4
Operating junction and storage temperature range
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 3.0A
Maximum DC reverse current TA=25 C
at rated DC blocking voltage TA=125 C
IR
5.0
300.0
RθJA
CJ
TJ,TSTG
50.0
20.0
-50 to +150
pF
C
A
µ
Typical thermal resistance (NOTE 3)
C/W
Typical junction capacitance (NOTE 2)
Maximum reverse recovery time (NOTE 1)
trr
50 75
ns
US3JF US3KF US3MF
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%.
50
35
50
100
70
100
200
140
200
400
280
400
600
420
600
800
560
800
1000
700
1000
1.0 1.7
XXW Catalog
Number
Dimensions in inches and (millimeters)
Glass passivated chip junction
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
Case
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
: JEDEC SMAF molded plastic body over passivated chip
SMAF
Cathode Band
Top View
0.130(3.3)
0.146(3.7)
0.193(4.90)
0.173(4.40)
0.106(2.70)
0.094(2.40)
0.051(1.30)
0.063(1.60)
0.051(1.30)
0.043(1.10)
0.0091(0.23)
0.0071(0.18)
0.051(1.30)
0.039(1.0)
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RATINGS AND CHARACTERISTIC CURVES US3AF THRU US3MF
0.6
1.2
1.8
2.4
3.0
3.5
0.0
25 50
75
100 125 150 175
Fig.1 Forward Current Derating Curve
Average Forward Current (A)
Ambient Temperature (°C)
Single phase half-wave 60 Hz
resistive or inductive load
20
40
60
80
100
120
00
10 100
Fig.4 Maximum Non-Repetitive Peak
Forward Surage Current
Peak A)Forward Surage Current (
Number of Cycles
8.3 ms Single Half Sine Wave
(JEDEC Method)
1
Fig.2 Typical Reverse Characteristics
0.1
1.0
10
100
20 40 60 80 100
00
percent of Rated Peak Voltage (%)Reverse
Instaneous Current ( A)Reverse μ
T =125
J
°C
T =25
J
°C
Fig.3 Typical Instaneous Forward
Characteristics
Instaneous Forward Current (A)
0.5 1.0 1.5 2.0 2.5
0.0
0.01
0.1
1.0
10
Instaneous Forward Voltage (V)
20
pulse with 300μs
1% duty cycle
T =25
J
°C
US3AF~ US3DF
US3GF
US3JF~ US3MF
The cruve
g
ra
p
h is for reference onl
y
, can't be the basis for
j
ud
g
ment
(
曲线图仅供参考
)
!
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