RECTRON
SEMICONDUCTOR
TECHNICAL SPECIFICATION
SF31
THRU
SF36
GLASS PASSIVATED SUPER FAST RECTIFIER
VOLTAGE RANGE 50 to 400 Volts CURRENT 3.0 Amperes
FEATURES
*
*
*
*
*
*
*
High reliability
Low leakage
Low forward voltage
High current capability
Super fast switching speed
High surge capability
Good for switching mode circuit
DO-201AD
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
1.0 (25.4)
MIN.
.052 (1.3)
DIA.
.048 (1.2)
.375 (9.5)
.335 (8.5)
.220 (5.6)
.197 (5.0)
DIA.
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
o
1.0 (25.4)
MIN.
Dimensions in inches and (millimeters)
MAXIMUM RATINGS
(At T
A
= 25
o
C unless otherwise noted)
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Volts
Maximum DC Blocking Voltage
Maximum Average Forward Current
o
at T
A
= 55 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
RMS
V
DC
I
O
I
FSM
C
J
T
J
, T
STG
50
-65 to + 150
SF31
50
35
50
SF32
100
70
100
SF33
150
105
150
3.0
125
30
SF34
200
140
200
SF35
300
210
300
SF36
400
280
400
UNITS
Volts
Volts
Volts
Amps
Amps
pF
0
C
ELECTRICAL CHARACTERISTICS
(At T
A
= 25 C unless otherwise noted)
CHARACTERISTICS
Maximum Forward Voltage at 3.0A DC
Maximum DC Reverse Current
at Rated DC Blocking Voltage
Maximum Reverse Recovery Time (Note 1)
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.
@T
A
= 25 C
@T
A
=150 C
trr
o
o
o
SYMBOL
V
F
I
R
SF31
SF32
0.95
SF33
5.0
SF34
SF35
1.25
SF36
UNITS
Volts
uAmps
50
35
nSec
2001-5
RATING AND CHARACTERISTIC CURVES ( SF31 THRU SF36 )
FIG. 1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
50
NONINDUCTIVE
10
NONINDUCTIVE
trr
+0.5A
(-)
PULSE
GENERATOR
AVERAGE FORWARD CURENT, (A)
FIG. 2 - TYPICAL FORWARD
CURRENT DERATING CURVE
6.0
5.0
4.0
3.0
2.0
1.0
0
0 25 50 75 100 125 150 175
AMBIENT TEMPERATURE (
)
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
(+)
25 Vdc
(approx)
(-)
D.U.T
0
-0.25A
(NOTE 2)
1
NON-
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
(+)
-1.0A
NOTES:
1 Rise Time = 7ns max. Input Impedance =
1 megohm. 22pF.
2. Rise Time = 10ns max. Source Impedance =
50 ohms.
1cm
SET TIME BASE FOR
10 ns/cm
FIG. 3 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT, (uA)
INSTANTANEOUS FORWARD CURRENT, (A)
FIG. 4 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
10
100
TJ = 150
31~
10
TJ = 100
1.0
SF
34
SF
SF
35
~S
F3
6
1.0
.1
TJ = 25
.1
TJ = 25
Pulse Width = 300uS
1% Duty Cycle
.01
.01
0
20
40
60
80
100
120
140
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT, (A)
.001
0
.2
.4
.6
.8
1.0
1.2
1.4
INSTANTANEOUS FORWARD VOLTAGE, (V)
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, (pF)
175
150
125
100
75
50
25
0
1
2
5
10
20
50
NUMBER OF CYCLES AT 60Hz
100
8.3ms Single Half Sine-Wave
(JEDEC Method)
200
100
60
40
20
10
6
4
2
1
.1
.2
.4
1.0
2
4
10
20 40 100
TJ = 25
SF3
1
~SF
34
36
SF3
5~S
F
REVERSE VOLTAGE, ( V )
RECTRON
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