MOSPEC
Switchmode
Full Plastic Ultra-fast Power Rectifiers
…Designed for use in switching power supplies. inverters and as free
wheeling diodes. These state-of-the-art devices have the following
features:
＊High
Surge Capacity
＊Low
Power Loss, High efficiency
＊Glass
Passivated chip junctions
＊150℃
Operating Junction Temperature
＊Low
Stored Charge Majority Carrier Conduction
＊Low
Forward Voltage , High Current Capability
＊High-Switching
Speed 50 & 75 Nanosecond Recovery Time
＊Plastic
Material used Carries Underwriters Laboratory
URAF0830 Thru URAF0860
ULTRA FAST
RECTIFIERS
8 AMPERES
300-600 VOLTS
MAXIMUM RATINGS
Characteristic
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Average Rectifier Forward Current
Per Leg
T
C
=125℃
Peak Repetitive Forward Current
(Rate V
R
, Square Wave, 20kHz,T
C
=125℃)
ITO-220AC
Symbol
30
V
RRM
V
RWM
V
R
V
R(RMS)
I
F(AV)
I
FM
300
URAF08
40
400
50
500
60
600
V
Unit
210
280
8.0
16
350
420
V
A
A
DIM
A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
O
Q
Non-Repetitive Peak Surge Current
(Surge applied at rate load conditions
halfware, single phase, 60Hz)
Operating and Storage Junction
Temperature Range
I
FSM
100
A
T
J
, T
stg
-65 to +150
℃
ELECTRIAL CHARACTERISTICS
Characteristic
Maximum Instantaneous Forward Voltage
( I
F
=8 Amp T
C
= 25℃)
( I
F
=8 Amp T
C
= 125℃)
Maximum Instantaneous Reverse Current
( Rated DC Voltage, T
C
= 25℃)
( Rated DC Voltage, T
C
= 125℃)
Reverse Recovery Time
( I
F
= 0.5 A, I
R
=1.0 , I
rr
=0.25 A )
Typical Junction Capacitance
(Reverse Voltage of 4 volts & f=1 MHz)
Symbol
30
V
F
1.30
1.12
URAF08
40
50
1.50
1.34
60
V
Unit
MILLIMETERS
MIN
MAX
15.05
15.15
13.35
13.45
10.00
10.10
6.55
6.65
2.65
2.75
1.00
1.15
1.25
0.55
0.65
4.80
5.20
3.00
3.20
1.10
1.20
0.55
0.65
4.40
4.60
1.15
1.25
2.65
2.75
3.35
3.45
3.15
3.25
I
R
10
500
50
uA
T
rr
C
P
85
ns
70
P
F
URAF0830 Thru URAF0860
FIG-1 TYPICAL FORWARD CHARACTERISITICS
AVERAGE FORWARD RECTIFIED CURRENT (Amp.)
AVERAGE FORWARD RECTIFIED CURRENT (Amp.)
FIG-3 FORWARD CURRENT DERATING CURVE
URAF0830-40
URAF0850-60
LEAD TEMPERATURE (℃)
FIG-4TYPICAL JUNCTION CAPACITANCE
FORWARD VOLTAGE (Volts)
FIG-2 TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT (uA.)
JUNCTION CAPACITANCE (
P
F)
URAF0830-40
URAF0850-60
URAF0850-60
REVERSE VOLTAGE (Volts.)
URAF0830-40
PEAK FORWARD SURGE CURRENT (Amp.)
FIG-5PEAK FORWARD SURGE CURRENT
PERCENT OF PEAK REVERSE VOLTAGE (﹪)
NUMBER OF CYCLES AT 60 Hz
Set time base for 10/20 ns/cm
FIG-6 Reverse Recovery Time Characteristic and Test Circuit Diagram
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