SM4933A
THRU
SM4937A
1.0 AMP SURFACE MOUNT FAST RECOVERY RECTIFIERS
VOLTAGE RANGE
50 to 600 Volts
CURRENT FEATURES
* Ideal for surface mount applications * Easy pick and place * Built-in strain relief * Fast switching speed
.058(1.47) .052(1.32)
1.0 Ampere
DO-214AC(SMA)
.110(2.79) .100(2.54)
MECHANICAL DATA
* Case: Molded plastic * Epoxy: UL 94V-0 rate flame retardant * Metallurgically bonded construction * Polarity: Color band denotes cathode end * Mounting position: Any * Weight: 0.063 grams
.090(2.29) .078(1.98) .060(1.52) .030(0.76)
.177(4.50) .157(3.99) .012(0.31) .006(0.15)
.005 MAX. (.127) .208(5.28) .194(4.93)
Dimensions in inches and (millimeters)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Rating 25 C ambient temperature uniess otherwies specified. Single phase half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%.
TYPE NUMBER
Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current See Fig. 2 Peak Forward Surge Current, 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Maximum Instantaneous Forward Voltage at 1.0A Maximum DC Reverse Current Ta=25 C at Rated DC Blocking Voltage Ta=100 C Maximum Reverse Recovery Time (Note 1) Typical Junction Capacitance (Note 2) Operating and Storage Temperature Range TJ, TSTG
NOTES:
SM4933A SM4934A 50 100 35 70 50 100
SM4935A 200 140 200 1.0 30 1.3 5.0 100 200 15 -65 +175
SM4936A SM4937A UNITS V 400 600 V 280 420 V 400 600 A A V µA µA nS pF C
1. Reverse Recovery Time test condition:IF=1.0A, VR=30V. 2. Measured at 1MHz and applied reverse voltage of 4.0V D.C.
236
RATING AND CHARACTERISTIC CURVES (SM4933A THRU SM4937A)
FIG.1-TYPICAL FORWARD CHARACTERISTICS
AVERAGE FORWARD CURRENT,(A)
FIG.2-TYPICAL FORWARD CURRENT DERATING CURVE
50
INSTANTANEOUS FORWARD CURRENT,(A)
1.2 1.0 0.8 0.6 0.4 0.2 0
Single Phase Half Wave 60Hz Resistive Or Inductive Load
10 3.0 1.0
Tj=25 C Pulse Width 300us 1% Duty Cycle
0
20
40
60
80
100
120
140
160
180
200
AMBIENT TEMPERATURE,( C)
0.1
FIG.4-MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
PEAK FORWARD SURGE CURRENT,(A)
50
.01
.6
.8
1.0
1.2
1.4
1.6
1.8
2.0
FORWARD VOLTAGE,(V)
40
FIG.3- TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTICS
10K 2W 115Va 60Hz C P CLARE HPG1002 7 6 8 1 2 3 5 4 1 AMP SLO-BLO FUSE 30Vdc CONSTANT VOLTAGE SUPPLY C1 1.0µF 300V R1 3Ω 25W
30
Tj=25 C 8.3ms Single Half Sine Wave JEDEC method
20
30 Ω/50W NON-INDUCTIVE UNIT UNDER TEST A R2 1Ω /10W NONINDUCTIVE 1.0Adc FROM CONSTANT VOLTAGE SUPPLY RIPPLE=3mVrms MAX.
10
0 1 5 10 50 100
NUMBER OF CYCLES AT 60Hz
C1 1.0µF 300V Zout 11/2ΩMAX. DC To 2KHz
MINIMIZE ALL LEAD LENGTHS A-TEKTRONIX 545A. K PLUG IN PRE AMP P6000 PROBE OR EQUIVALENT R1- ADJUSTED FOR 14 BETWEEN POINT 2 OF RELAY AND RECTIFIER INDUCTIVE=3.8 µH
FIG.5-TYPICAL JUNCTION CAPACITANCE
35 30 25 20 15 10 5 0
R2- TEN 1W 10 Ω1% CARBON CORE IN PARALLEL TA= 25
+10 C 0
FOR RECTIFIER
IFM 1.0 i(t) di/dt=50A/µS
trr 0
IRM(REC) 2.0 1cm SET TIME BASE FOR 50 / 100ns / cm
JUNCTION CAPACITANCE,(pF)
.01
.05
.1
.5
1
5
10
50
100
REVERSE VOLTAGE,(V)
237
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