RECTRON SM4934, SM4935, SM4936, SM4937, SM4933 Datasheet
RECTRON
.095 (2.4
)
.106 (2.7
)
.028 (.60
)
.018 (.46
)
.190 (4.8
)
.205 (5.2
)
SOLDERABLE
ENDS
SEMICONDUCTOR
TECHNICAL SPECIFICA TION
SURFACE MOUNT GLASS PASSIVATED
FAST RECOVERY SILICON RECTIFIER
VOLTAGE RANGE 50 to 600 Volts CURRENT 1.0 Ampere
FEATURES
* Fast switching
* Glass passivated device
* Ideal for surface mounted applications
* Low leakage current
* Metallurgically bonded construction
* Mounting position: Any
* Weight: 0.015 gram
MECHANICAL DATA
* Epoxy : Device has UL flammability classification 94V-0
SM4933
THRU
SM4937
MELF
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 oC ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
MAXIMUM RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current TA = 55oC
Peak Forward Surge Current IFM (surge): 8.3 ms single half sine-wave
superimposed on rated load (JEDEC method)
Maximum Thermal Resistance
Typical Junction Capacitance (Note 1)
Operating and Storage Temperature Range
ELECTRICAL CHARACTERISTICS
Maximum Forward Voltage at 1.0A DC
Maximum Full Load Reverse Current,Full cycle Average at TA = 55oC
Maximum Average Reverse Current at
Rated DC Blocking Voltage
Maximum Reverse Recovery Time (Note 4)
NOTES : 1. Measured at 1.0 MHz and applied average voltage of 4.0VDC
2. Thermal resistance junction to terminal 6.0mm2 copper pads to each terminal.
3. Thermal resistance junction to ambient, 6.0mm2 copper pads to each terminal.
4. Test Conditions: IF = 1.0A, VR = 30V.
(At TA = 25oC unless otherwise noted)
RATINGS
(At TA = 25oC unless otherwise noted)
CHARACTERISTICS
@TA = 25oC
@TA = 125oC
SYMBOL
V
RRM
V
RMS
V
DC
I
O
I
FSM
(Note 2) R θ
(Note 3) Rθ
C
J
TJ, T
STG
SYMBOL
V
F
I
R
trr
Dimensions in inches and (millimeters)
SM4933 SM4935 SM4936 SM4937SM4934
50
35 70 140 280 420
50 100 200 400 600
JL
JA
SM4933 SM4935 SM4936 SM4937SM4934
100 200 400 600
1.0
30
30
75
15
-65 to + 175
1.2
50
5.0
100 uAmps
200
UNITS
Volts
Volts
Volts
Amps
Amps
0
C/W
0
C/W
pF
0
C
UNITS
Volts
uAmps
uAmps
nSec
2001-4
RATING AND CHARACTERISTIC CURVES
(
SM4933 THRU SM4937
)
FIG. 1 - TYPICAL FORWARD CURRENT
DERATING CURVE
1.0
.8
.6
.4
Single Phase
Half Wave 60Hz
.2
Resistive or
Inductive Load
0
AVERAGE FORWARD CURRENT, (A)
0 25 50 75 100 125 150 175
AMBIENT TEMPERATURE, ( )
FIG. 3 - TYPICAL REVERSE CHARACTERISTICS
10
4
1.0
TJ = 100
.4
.1
.04
TJ = 25
.01
0 20 40 60 80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
INSTANTANEOUS REVERSE CURRENT, (uA)
FIG. 5 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY
115Va 10K
60Hz 2W
C.P.CLARE
HPG 1002
30 Vdc
CONSTANT VOLTAGE
SUPPLY
A-TEKTRONIX 545A. K PLUG IN
PRE AMP P6000 PROBE OR EQUIVALENT
R1-ADJUSTED FOR 1.4 BETWEEN
POINT 2 OF RELAY AND RECTIFIER
INDUCTIVE = 3.8uH
IRM (REC)
TIME CHARACTERISTIC
1
8
2
7
6
IFM 1.0
3.8uH
3
/1.4
4
5
1 AMP
SLO-BLO
FUSE
C1
1.0uF
300V
MINIMIZE ALL LEAD LENGTHS
trr
i(t)
di/dt = 50A/uS
0
30
50W
NON-INDUCTIVE
UNIT
UNDER TEST
R2
1
10W
NONINDUCTIVE
R2-TEN-1W 10 % CARBON CORE
IN PARALLEL
TA = 25 FOR RECTIFIER
SET TIME BASE FOR
50/100 ns/cm
C1
1.0uF
300V
Zout 11/
DC to 2kHz
10
0
1.0 Adc FROM
CONSTANT
VOLTAGE SUPPLY
RIPPLE = 3mVrms MAX
2
MAX
FIG. 2 - MAXIMUM NON-REPETITIVE FORWARD
50
SURGE CURRENT
40
30
20
10
8.3ms Single Half Sine-Wave
(JEDED Method)
0
FORWARD SURGE CURRENT, (A)
12468 10 20 40 6080100
NUMBER OF CYCLES AT 60Hz
FIG. 4 - TYPICAL INSTANTANEOUS FORWARD
20
10
CHARACTERISTICS
TJ = 25
Pulse Width = 300us
1% Duty Cycle
1.0
.1
INSTANTANEOUS FORWARD CURRENT, (A)
.01
.6 .8 1.0 1.2 1.4
INSTANTANEOUS FORWARD VOLTAGE, (V)
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
)
200
pF
(
100
60
40
20
10
6
TJ = 25
4
2
JUNCTION CAPACITANCE,
1
.1 .2 .4 1.0 2 4 10 20 40 100
REVERSE VOLTAGE, ( V )
RECTRON
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