GLASS PASSIVATED SUPER FAST RECTIFIER
VOLTAGE 200 Volts CURRENT 4.0 Amperes
RECTRON
SEMICONDUCTOR
TECHNICAL SPECIFICATION
FEATURES
* High reliability
* Low leakage
* Low forward voltage
* High current capability
* Super fast switching speed
* High surge capability
* Good for switching mode circuit
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
o
C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
ELECTRICAL CHARACTERISTICS
(At T
A
= 25
o
C unless otherwise noted)
SF44
DO-201AD
MAXIMUM RATINGS
(At T
A
= 25
o
C unless otherwise noted)
NOTES : 1. Test Conditions: I
F
=0.5A, I
R
=-1.0A, I
RR
=-0.25A.
2. Measured at 1 MH
Z
and applied reverse voltage of 4.0 volts.
Dimensions in inches and (millimeters)
MECHANICAL DATA
* Case: Molded plastic
* Epoxy: Device has UL flammability classification 94V-O
* Lead: MIL-STD-202E method 208C guaranteed
* Mounting position: Any
* Weight: 1.18 grams
2005-8
REV:A
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Volts
Maximum DC Blocking Voltage
Maximum Average Forward Current
at T
A
= 55
o
C
Peak Forward Surge Current I
FM
(surge):8.3 ms single half
sine-wave superimposed on rated load (JEDEC method)
Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range
SYMBOL
V
RRM
V
DC
I
O
I
FSM
C
J
T
J
, T
STG
V
RMS
Volts
Volts
Volts
Amps
4.0
125
50
-55 to + 175
Amps
pF
0
C
UNITS
SF44
200
140
200
at Rated DC Blocking Voltage
CHARACTERISTICS
Maximum Reverse Recovery Time (Note 1)
V
F
SYMBOL
I
R
trr
UNITS
0.95
5.0
uAmps
nSec
Maximum DC Reverse Current
Maximum Forward Voltage at 4.0A DC
Volts
@T
A
= 25
o
C
@T
A
=150
o
C
SF44
50
20
.220 (5.6)
.197 (5.0)
DIA.
.052 (1.3)
.048 (1.2)
DIA.
1.0 (25.4)
MIN.
.335 (8.5)
.375 (9.5)
1.0 (25.4)
MIN.
RECTRON
RATING AND CHARACTERISTIC CURVES ( SF44 )
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, (pF)
REVERSE VOLTAGE, ( V )
200
100
60
40
20
10
6
4
2
1
.1
.2
.4
1.0
2
4
10
20 40
100
TJ = 25
FIG. 1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
50
NONINDUCTIVE
10
NONINDUCTIVE
D.U.T
25 Vdc
(approx)
( - )
( - )
( + )
( + )
1
NON-
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
PULSE
GENERATOR
(NOTE 2)
NOTES: 1 Rise Time = 7ns max. Input Impedance =
1 megohm. 22pF.
2. Rise Time = 10ns max. Source Impedance =
50 ohms.
trr
+0.5A
0
-0.25A
-1.0A
1cm
SET TIME BASE FOR
10 ns/cm
FIG. 2 - TYPICAL FORWARD
CURRENT DERATING CURVE
AVERAGE FORWARD CURENT, (A)
AMBIENT TEMPERATURE ( )
7.0
6.0
5.0
3.0
4.0
2.0
0
25 50 75 100 125 150 175
1.0
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
FIG. 3 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT, (uA)
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
TJ = 25
TJ = 100
TJ = 150
100
10
1.0
.1
.01
40
0
20
60
80
100
120
140
FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT, (A)
NUMBER OF CYCLES AT 60Hz
175
150
125
100
75
50
25
0
1
2
5
10
20
50
100
8.3ms Single Half Sine-Wave
(JEDEC Method)
INSTANTANEOUS FORWARD VOLTAGE, (V)
FIG. 4 - TYPICAL INSTANTANEOUS
INSTANTANEOUS FORWARD CURRENT, (A)
0
.2
.4
.6
.8
1.0
1.2
1.4
.001
.01
.1
1.0
10
FORWARD CHARACTERISTICS
Pulse Width = 300uS
1% Duty Cycle
TJ = 25