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
MECHANICAL DATA
Case: SMAF Molded plastic
Terminals: Pure tin plated, lead free
Polarity: Indicated by cathode band
Weight: 27mg (approx.)
US1AF-US1MF
SURFACE MOUNT ULTRA FAST RECTIFIER
SMAF
Cathode
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
Symbol US1AF US1BF US1DF US1GF US1JF US1KF US1MF Unit
Maximum Repetitive Peak Reverse Voltage
V RRM
50
Maximum RMS Voltage
V RMS
35
Maximum DC Blocking Voltage
Maximum Average Forward Rectified
Current at TA =75 °C
Peak Forward Surge Current 8.3ms
Single Half Sine-wave Superimposed
on Rated Load (JEDEC)
V DC
50
I F(AV)
I FSM
Maximum Instantaneous Forward Voltage at 1 A VF
Maximum DC Reverse Current at
Rated DC Blocking Voltage
TA =25 °C
TA=100 °C
IR
Maximum reverse recovery time (NOTE1)
t rr
Typical Junction Capacitance (NOTE2)
CJ
Maximum Thermal Resistance (NOTE3)
R θJL
Operating and Storage Temperature Range
T J, TS
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
100 200 400 600 800 1000 V
70
140 280 420 560 700
V
100 200 400 600 800 1000 V
1.0
A
30.0
1.0
1.4
1.7
5.0
50.0
50
75
15.0
50.0
-50 to + 150
A
V
µA
nS
pF
°C/W
°C
©GUANGDONG HOTTECH INDUSTRIAL CO.,LTD
E-mail:hkt@heketai.com
1/3