FCI IN4937

1.0 Amp FAST RECOVERY
PLASTIC RECTIFIERS
Data Sheet
Mechanical Dimensions
1N4933 . . . 37 Series
Description
JEDEC
D0-41
.205
.160
.080
.107
1.00 Min.
.031 typ.
Features
n FAST SWITCHING FOR
HIGH EFFICIENCY
n 1.0 AMP OPERATION @ TA = 55°C, WITH
NO THERMAL RUNAWAY
n HIGH SURGE CAPABILITY
n MEETS UL SPECIFICATION 94V-0
1N4933 . . . 37 Series
Units
1N4933
1N4934
1N4935
IN4936
IN4937
Peak Repetitive Reverse Voltage...VRRM
50
100
200
400
600
Volts
RMS Reverse Voltage...VR(rms)
35
70
140
280
420
Volts
DC Blocking Voltage...VDC
50
100
200
400
600
Volts
Maximum Ratings
Average Forward Rectified Current...IF(av)
TA = 55°C
............................................. 1.0 ...............................................
Amps
Non-Repetitive Peak Forward Surge Current...IFSM
@ Rated Current & Temp
............................................. 30 ...............................................
Amps
Operating & Storage Temperature Range...TJ, TSTRG
........................................ -65 to 150 .........................................
°C
............................................. 1.2 ...............................................
Volts
Electrical Characteristics
Maximum Forward Voltage @ 1.0A...VF
Maximum DC Reverse Current...IR
@ Rated DC Blocking Voltage
@
@
25°C
100°C
............................................. 5.0 ............................................... µAmps
............................................. 100 ............................................... µAmps
Typical Junction Capacitance...CJ (Note 1)
............................................. 1 2 ...............................................
pF
Maximum Reverse Recovery Time...tRR
............................................. 200 ...............................................
ns
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Non-Repetitive
Peak Forward Surge Current
Average Forward Current (A)
Peak Forward Surge Current (A)
Forward Current Derating Curve
1.5
100
1.0
.5
25 50 75 100 125 150 175
Ambient Temperature (°° C)
0
10
1
10
1
Typical Instantaneous Forward Characteristics
100
1
.1
.01
.6
TJ = 25°C
.8
1.0
1.2
Forward Voltage (V)
(+)
(-)
25 VDC
D.U.T
1Ω
NonInductive
10Ω
Ω
(-)
Pulse
Generator
Note 2
Oscilliscope (+)
Note 1
Notes: 1. Rise Time = 7 ns Max.
Impedance = 1 megohm, 22 pF
2. Rise Time = 10 ns Max.
Source Impedance = 50 Ohms
50
TJ = 25°C
10
1
1.4
Non-Inductive
50Ω
Ω
1000
Typical Junction Capacitance
Junction Capacitance (pF)
Forward Current (A)
10
100
Number of Cycles @ 60 Hz
1N4933 . . . 37 Series
1.0 Amp FAST RECOVERY
PLASTIC RECTIFIERS
Data Sheet
.1
1
10
100
Reverse Voltage (V)
+.5A
Reverse Recovery Characteristics
tRR
-.25A
Ratings at
25 Deg. C ambient
temperature
unless otherwise
specified.
-1.0A
Single Phase Half
Wave, 60 Hz
Resistive or
Inductive Load.
0A
1 cm
Time Base Set @ 50/100ns/cm
NOTES: 1. Measured @ 1 MHz and applied reverse voltage of 4.0V.
2. Thermal Resistance Junction to Ambient, Jedec Method.
For Capacitive
Load, Derate
Current by 20%.
Page 4-3