UF1A thru UF1K
SURFACE MOUNT ULTRAFAST
RECTIFIER
CHENG- YI
ELECTRONIC
RATING AND CHARACTERISTICS CURVES
UF1A THRU UF1K
Fig. 1 - REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
50
Noninductive
10
Noninductive
trr
+0.5A
( )
PULSE
GENERATOR
NOTE 2
(+)
25 Vdc
(approx)
( )
D.U.T.
0
-0.25
1
NON-
Inductive
OSCILLOSCOPE
NOTE 1
(+)
NOTES:1. Rise Time=7ns max.
Input Impedance=1 megohm. 22pF
2. Rise Time=10ns max.
Source Impedance=50 Ohms.
-1.0
SET TIME
BASE FOR
10ns/cm
1cm
Fig. 2 - FORWARD CHARACTERISTICS
US1A
JUNCTION CAPACITANCE, pF
10
Fig. 3 - TYPICAL JUNCTION CAPACITANCE
100
T
J
=25 C
f=1.0MHz
Vsig=50mVp-p
0
TYPICAL
1.0
IFM, Apk
US1G
US1K
10
0.1
TJ=25 C
0
1
0.1
.01
0
.2
.4
.6
.8
1.0
1.2 1.4
1
10
100
REVERSE VOLTAGE, VOLTS
Fig. 5 - PEAK FORWARD SURGE CURRENT
30
Fig. 4 - FORWARD CURRENT DERATING CURVE
AVERAGE FORWARD CURRENT,
AMPERES
PEAK FORWARD SURGE
CURRENT, AMPERES
2.0
SINGLE PHASE
HALF W AVE
60H
Z
RESISTIVE OR
INDUCTIVE LOAD
P.C.B MOUNTED
ON 0.315x0.315"(8.0x8.0mm)
COPPER PAD AREAS
25
8.3ms SINGLE HALF SINCE-WAVE
JEDEC METHOD
20
15
10
5
1.0
25
50
75
100 125 150 175
LEAD TEMPERATURE,
o
C
1
2
5
10
20
50
100
NUMBER OF CYCLES AT 60Hz
CHENG-YI [ CHENG-YI ELECTRONIC CO., LTD. ]
