COMCHIP IN4937

Plastic Fast Recovery Rectifier
COMCHIP
www.comchiptech.com
1N4933 THRU 1N4937
Voltage Range 50 to 600 V
Current 1.0 Ampere
Features
Fast switching for high efficiency
Low forward voltage drop
DO-41
High current capability
Low reverse leakage current
High surge current capability
.034(.86)
Mechanical Data
.028(.71)
1.0(25.4)
Case: Molded plastic DO-41
MIN.
DIA.
Epoxy: UL 94V-0 rate flame retardant
Terminals: Solderable per MIL-STD-202
.205(5.2)
method 208
.160(4.1)
.107(2.7)
Polarity:Color band denotes cathode
DIA.
.080(2.0)
Mounting position: Any
1.0(25.4)
MIN.
Weight: 0.036gram
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
SYMBOL
1N4933
1N4934
1N4935
1N4936
1N4937
UNIT
Maximum Recurrent Peak Reverse Voltage
VRRM
50
100
200
400
600
V
Maximum RMS Voltage
VRMS
35
70
140
280
420
V
VDC
50
100
200
400
600
V
Maximum DC Blocking Voltage
Maximum Average Forward Rectified
o
Current TL=55 C
IF(AV)
1.0
A
IFSM
30
A
VF
1.2
V
Peak Forward Surge Current, 8.3ms single
Half sine-wave superimposed on rated load
(JEDEC method)
Maximum Instantaneous Forward Voltage
@ 1.0 A
o
Maximum DC Reverse Current @TJ=25 C
o
At Rated DC Blocking Voltage @TJ=100 C
IR
5.0
uA
250
uA
nS
Maximum Reverse Recovery Time (Note 1)
Trr
130
Typical junction Capacitance (Note 2)
CJ
15
Typical Thermal Resistance (Note 3)
Operating Junction and Storage
Temperature Range
R JA
75
TJ, TSTG
-55 to + 125
pF
o
CW
o
C
NOTES : (1) Reverse recovery test conditions IF = 0.5A, IR = 1.0A, Irr = 0.25A.
(2) Measured at 1.0 MHz and applied reverse voltage of 4.0 Volts DC.
(3) Thermal Resistance junction to lead.
MDS0405001A
Page 1
Plastic Fast Recovery Rectifier
COMCHIP
www.comchiptech.com
FIG.2 - MAXIMUM NON-REPETITIVE
PEAK FORWARD SURGE CURRENT
FIG.1 - FORWARD CURRENT DERATING CURVE
30
PEAK FORWARD SURGE CURRENT,
AMPERES
AVERAGE FORWARD RECTIFIED
CURRENT, AMPERES
1.0
0.8
0.6
0.4
0.2
60 Hz Resistive or
Inductive load
Pulse Width 8.3ms
Single Half-Sire-Wave
(JEDEC Method)
25
20
15
10
5
0
0
0
50
100
150
1
100
NUMBER OF CYCLES AT 60Hz
o
LEAD TEMPERATURE, C
FIG.4 - TYPICAL REVERSE CHARACTERISTICS
FIG.3 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
10
1000
INSTANTANEOUS REVERSE CURRENT,
MICROAMPERES
IINSTANTANEOUS FORWARD CURRENT,
AMPERES
10
1.0
0.1
o
TJ=25 C
PULSE WIDTH=300uS
1% DUTY CYCLE
0.01
0.2
0.4
0.6
0.8
1.0
1.2
1.4
o
TJ=100 C
100
10
o
TJ=25 C
1
0.1
1.6
0
INSTANTANEOUS FORWARD VOLTAGE,
VOLTS
20
40
60
80
100
PERCENT OF RATED PEAK REVERSE VOLTAGE,%
FIG.5 - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, pF
100
o
TJ = 25 C
f = 1.0 MHZ
Vsig = 50mVp-p
10
1
0.1
1.0
4.0
10
100
REVERSE VOLTAGE, VOLTS
MDS0405001A
Page 2