UF2A thru UF2K
SURFACE MOUNT ULTRAFAST
RECTIFIER
CHENG- YI
ELECTRONIC
RATING AND CHARACTERISTICS CURVES
UF2A THRU UF2K
Fig. 2 - TYPICAL FORWARD CHARACTERISTICS
PER ELEMENT
10
INSTANTANEOUS FORWARD CURRENT,
AMPERES
UF2A
UF2G
TJ=25 C
Pulse Width=300 s
2% Duly Cycle
0
Fig. 1 - DERATING CURVE FOR
OUTPUT RECTIFIED CURRENT
AVERAGE FORWARD RECTIFIED
CURRENT, AMPERES
2.4
2.0
1.6
1.2
0.8
0.4
0
0
20
40
60
80
100 120
o
UF2K
1.0
SINGLE PHASE
HALF W AVE
60H
Z
RESISTIVE OR
INDUCTIVE LOAD
P.C.B MOUNTED
ON 0.3x0.3"(8.0x8.0mm)
COPPER PAD AREAS
0.1
140 160
0.01
0.4
0.4
0.8
1.0
1.2
1.4
LEAD TEMPERATURE, C
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
Fig. 4 - TYPICAL REVERSE CHARACTERISTICS
Fig. 3 - MAXIMUM FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT,
AMPERES
INSTANTANEOUS REVERSE
CURRENT MICROAMPERES
60
50
40
30
20
10
0.01
1
2
5
10
20
50
100
NUMBER OF CYCLES AT 60Hz
8.3ms SINGLE HALF SINCE-WAVE
JEDEC METHOD
10
1.0
0.1
TJ=25
0
C
20
40
60
80
100
120
140
PERCENT OF RATED PEAK
REVERSE VOLTAGE
FIG. 5 - TYPICAL JUNCTION CAPACITANCE
PER BRIDGE ELEMENT
100
Fig. 6 - REVERSE RECOVERY TIME CHARACTERISTIC
AND TEST CIRCUIT DIAGRAM
50
Noninductive
10
Noninductive
trr
+0.5A
( )
PULSE
GENERATOR
NOTE 2
CAPACITANCE, pF
(+)
25 Vdc
(approx)
( )
D.U.T.
0
-0.25
10
5
TJ=25
0
C
f=1.0MHz
Vsig=50mVp-p
1
NON-
Inductive
OSCILLOSCOPE
NOTE 1
(+)
1.0
10
REVERSE VOLTAGE, VOLTS
100
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
CHENG-YI [ CHENG-YI ELECTRONIC CO., LTD. ]
