CHENMKO CH461FPT

CHENMKO ENTERPRISE CO.,LTD
CH461FPT
SURFACE MOUNT
SCHOTTKY BARRIER DIODE
VOLTAGE 25 Volts CURRENT 0.7 Ampere
APPLICATION
* Low power rectification for switching power supply
SC-70/SOT-323
FEATURE
* Small surface mounting type. (SC-70/SOT-323)
* Ultra low VF. (VF=0.45V Typ. at 0.7A)
* IF=0.7A guaranteed desite the size
(2)
(3)
CONSTRUCTION
(1)
1.3±0.1
0.65
2.0±0.2
0.65
0.3±0.1
1.25±0.1
* Silicon epitaxial planar
MARKING
* 3F
0.8~1.1
0.05~0.2
0~0.1
0.1Min.
CIRCUIT
(1)
(2)
2.0~2.45
Dimensions in millimeters
(3)
SC-70/SOT-323
MAXIMUM RATINGES ( At TA = 25oC unless otherwise noted )
SYMBOL
CH461FPT
UNITS
Maximum Recurrent Peak Reverse Voltage
RATINGS
VRRM
25
Volts
Maximum RMS Voltage
VRMS
18
Volts
Maximum DC Blocking Voltage
VDC
20
Volts
IO
0.7
Amps
IFSM
3.0
Amps
pF
Maximum Average Forward Rectified Current
Peak Forward Surge Current at 8.3 mSec single half sine-wave
Typical Junction Capacitance between Terminal (Note 1)
CJ
20
Maximum Operating Temperature Range
TJ
+125
o
C
TSTG
-40 to +125
o
C
Storage Temperature Range
ELECTRICAL CHARACTERISTICS ( At TA = 25oC unless otherwise noted )
SYMBOL
CH461FPT
UNITS
Maximum Instantaneous Forward Voltage at IF= 700mA
VF
0.49
Volts
Maximum Average Reverse Current at VR= 20V
IR
200
uAmps
CHARACTERISTICS
NOTES : 1. Measured at 1.0 MHZ and applied reverse voltage of 10.0 volts.
2. ESD sensitive product handling required.
2002-5
RATING CHARACTERISTIC CURVES ( CH461FPT )
FIG. 1 - FORWARD CHARACTERISTICS
FIG. 2 - REVERSE CHARACTERISTICS
1000
REVERSE CURRENT, (mA)
1
100m
25 o
C
-25 o
C
5
o
2
=1
Ta
10m
C
C
o
75
FORWARD CURRENT, (A)
10
1m
0.1m
0.1
0.2
0.3
0.4
0.5
o
75 C
1
100u
o
25 C
10u
o
-25 C
1u
0.6
30
50
40
60
FIG. 4 - FORWARD POWER DISSIPATION
CHARACTERISTICS
FORWARD POWER DISSIPATION, (W)
100
10
1
5
10
15
20
25
30
35
40
FIG. 5 - DERATING CURVE BY AMBIENT
( ON GLASS EPOXY PCBS )
DC
IF
IO
D=0.8
sine
0.8 D=0.5
Tp
0.6 D=0.3
T
D=Tp/T
VR=VRM/2
D=0.2
0.4 D=0.1
D=0.05
0.2
0
25
50
75
AMBIENT TEMPERATURE, (oC)
0.6
100
125
70
DC
D=0.8
0.5
0.4
D=0.05
0.3
sine
D=0.3
D=0.2
D=0.1
D=0.5
IF
IO
0.2
Tp
0.1
0
0
0.2
0.4
0.6
0.8
T
D=Tp/T
Tj=Tj Max.
1.0
AVERAGE FORWARD CURRENT, (A)
REVERSE VOLTAGE, (V)
0
20
FIG. 3 - TYPICAL JUNCTION CAPACITANCE
1000
1.0
10
REVERSE VOLTAGE, (V)
f=1MHz
0
0
FORWARD VOLTAGE, (V)
10000
JUNCTION CAPACITANCE , (pF)
o
Ta=125 C
10
0.1u
0
AVERAGE FORWARD CURRENT, (A)
100
1.2