srf840 Lunsure Technology, srf840 Datasheet
srf840
Manufacturer Part Number
srf840
Description
Schottky Barrier Rectifier
Manufacturer
Lunsure Technology
Datasheet
1.SRF840.pdf
(2 pages)
FEATURES
. Plastic package has Underwriters Laboratory Flammability Classification 94V-0
. Metal sliicon junction ,majority carriet conduction
. Guard ring for overcoltage protection
. Low power loss,high efficiency
. High current capability ,Low forward voltage drop
. Single rectifier construction
. High surge capability
. For use in low voltage ,high frequency inverters,
. High temperature soldering guaranteed: 250 /10 seconds
MECHANICAL DATA
. Case: JEDEC DO-220AC molded plastic body
. Terminals: lead solderable per MIL-STD-750,method 2026
. Polarity: As marked
. Mounting Position: Any
. Weight: 0.08 ounce, 2.24 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
(Ratings at 25
load. For capacitive load,derate by 20%)
Notes: 1. Pulse test: 300
0.25"(6.35mm)from case
current(see Fig.1)
free wheeling , and polarilty protection applications
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Macimum average forward rectified
Repetitive peak forward current(square wavr,
20KHz) at Tc=105
Peak forward surge current 8.3ms singel half
sine-wave superimposed on rated load
(JEDEC method)
Maximum instantaneous forward voltage at 7.5 A(Note 1)
Maximum instantaneous reverse
current at rated DC blocking voltage(Note 1)
Typeical thermal resistance(Note 2)
Operating junction temperature range
storage temperature range
CHENYI ELECTRONICS
2.Thermal resistance from juntion to case
ambient temperature unless otherwise specified,Single phase,half wave,resistive or inductive)
CE
s
pulse width,1% duty cycle
Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD
TA=25
TA=125
SRF820 THRU SRF8A0(SINGLE CHIP)
Symbols SRF820 SRF830 SRF840 SRF850 SRF860 SRF880SRF8A0 Units
R
V
V
I
T
V
I
I
FRM
FSM
RRM
RMS
(AV)
V
T
I
STG
DC
R
J
F
JC
20
14
20
-65 to +125
0.65
30
21
30
15
40
28
40
SCHOTTKY BARRIER RECTIFIER
-65 to +150
150.0
16.0
8.0
1.0
5.0
50
35
50
Reverse Voltage - 20 to 100 Volts
0.75
Forward Current - 8.0Amperes
60
42
60
-65 to +150
50
0.8
80
57
80
Page 1 of 2
0.85
100
100
71
Amps
Amps
Amps
Volts
Volts
Volts
Volts
mA
/W
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srf840 Summary of contents
Page 1
... Operating junction temperature range storage temperature range Notes: 1. Pulse test: 300 s pulse width,1% duty cycle 2.Thermal resistance from juntion to case Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD SRF820 THRU SRF8A0(SINGLE CHIP) Symbols SRF820 SRF830 SRF840 SRF850 SRF860 SRF880SRF8A0 Units RRM ...
Page 2
CE CHENYI ELECTRONICS RATINGS AND CHARACTERISTIC CURVES SRF820 THRU SRF8A0 FLG.1-FORWARD CURRENT DERATING CURVE FIG.4-TYPICAL JUNCTION CAPACITANCE FIG.5-MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT Copyright @ 2000 SHANGHAI CHENYI ELECTRONICS CO.,LTD SRF820 THRU SRF8A0(SINGLE CHIP) SCHOTTKY BARRIER RECTIFIER FIG.2-TYPICAL INSTANTANEOUS FORWARD ...