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UG1A THRU UG1D
ULTRAFAST EFFICIENT PLASTIC RECTIFIER
Reverse Voltage - 50 to 200 Volts
DO-204AL
Forward Current - 1.0 Ampere
FEATURES
Plastic package has Underwriters Laboratories Flammability Classification 94V-0 Ideally suited for use in very high frequency switching power supplies, inverters and as a free wheeling diode Ultrafast recovery time for high efficiency Soft recovery characteristics Excellent high temperature switching Glass passivated junction High temperature soldering guaranteed: 250C/10 seconds, 0.375" (9.5mm) lead length, 5 lbs. (2.3kg) tension
1.0 (25.4) MIN. 0.107 (2.7) 0.080 (2.0) DIA.
0.205 (5.2) 0.160 (4.1)
MECHANICAL DATA
1.0 (25.4) MIN. 0.034 (0.86) 0.028 (0.71) DIA.
Dimensions in inches and (millimeters)
Case: JEDEC DO-204AL, molded plastic body over passivated chip Terminals: Axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.012 ounce, 0.34 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25C ambient temperature unless otherwise specified.
SYMBOLS
UG1A
UG1B
UG1C
UG1D
UNITS
Maximum repetitive peak reverse voltage Maximum RMS voltage Maximum DC blocking voltage Maximum average forward rectified current 0.375" (9.5mm) lead length at TL=75C Peak forward surge current 8.3 ms single half sine-wave superimposed on rated load (JEDEC Method) at TL=75C Maximum instantaneous forward voltage at 1.0A Maximum DC reverse current at rated DC blocking voltage Maximum reverse recovery time (NOTE 1) Maximum reverse recovery time
(NOTE 2)
VRRM VRMS VDC I(AV) IFSM VF IR trr TJ=25C TJ=100C TJ=25C TJ=100C trr Qrr CJ RJA RJL TJ, TSTG
50 35 50
100 70 100 1.0 40.0 0.95
150 105 150
200 140 200
Volts Volts Volts Amp Amps Volts A ns ns nC pF C/W C
TA= 25C TA=100C
5.0 200.0 15.0 25.0 35.0 8.0 12.0 7.0 60.0 20.0 -55 to +150
Maximum recovered stored charge
(NOTE 2)
Typical junction capacitance (NOTE 3) Typical thermal resistance (NOTE 4) Operating and storage temperature range
NOTES: (1) Reverse recovery test conditions: IF=0.5A, IR =1.0A, Irr=0.25A (2) trr and Qrr measured at: IF=1.0A VR=30V, di/dt=50A/s, Irr=10% IRM for measurement of trr (3) Measured at 1.0 MHZ and applied reverse voltage of 4.0 Volts (4) Thermal resistance from junction to ambient and from junction to lead at 0.375" (9.5mm) lead length
4/98
RATINGS AND CHARACTERISTIC CURVES UG1A THRU UG1D
FIG. 1 - FORWARD CURRENT DERATING CURVES FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT
1.5
AVERAGE FORWARD RECTIFIED CURRENT, AMPERES
1.25 1.0
0.75 0.5
TA, AMBIENT TEMPERATURE ON 0.25 P.C.B. MOUNTED 0.5 x 0.5" (12 x 12mm) COPPER PAD AREAS
PEAK FORWARD SURGE CURRENT, AMPERES
RESISTIVE OR INDUCTIVE LOAD 0.375" (9.5mm) LEAD LENGTH TL, LEAD TEMPERATURE
100
TL=75C 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method)
10
0 0
25
50
75
100
125
150
175
1
1
10
NUMBER OF CYCLES AT 60 Hz
100
TEMPERATURE, C
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
100
100
INSTANTANEOUS FORWARD CURRENT, AMPERES
TJ=100C TJ=25C
10
PULSE WIDTH=300s 1% DUTY CYCLE
INSTANTANEOUS REVERSE CURRENT, MICROAMPERES
10
TJ=100C
1
1
0.1
0.1
TJ=25C
0.01 0.4
0.6
0.8
1.0
1.2
1.4
1.6
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
0.01 0
20
40
60
80
100
PERCENT OF RATED PEAK REVERSE VOLTAGE, %
FIG. 5 - REVERSE SWITCHING CHARACTERISTICS
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
60
STORED CHARGE/REVERSE RECOVERY TIME, nC/ns
IF=1.0A VR=30V
100
trr Qrr
40 30 20 10 0
di/dt=20A/s di/dt=50A/s di/dt=100A/s di/dt=150A/s di/dt=150A/s di/dt=100A/s di/dt=50A/s di/dt=20A/s
JUNCTION CAPACITANCE, pF
50
TJ=25C f=1.0 MHZ Vsig=50mVp-p
10
0
25
50
75
100
125
150
175
JUNCTION TEMPERATURE, C
1 0.1
REVERSE VOLTAGE, VOLTS
1
10
100

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