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UG4A THRU UG4D
ULTRAFAST EFFICIENT PLASTIC RECTIFIER
Reverse Voltage - 50 to 200 Volts
DO-201AD
Forward Current - 4.0 Amperes
FEATURES
Plastic package has Underwriters Laboratories Flammability Classification 94V-0 Ideally suited for use in very high frequency switching power supplies, inverters and as free wheeling diodes 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. 0.210 (5.3) 0.190 (4.8) DIA.
0.375 (9.5) 0.285 (7.2)
MECHANICAL DATA
0.052 (1.32) 0.048 (1.22) DIA. 1.0 (25.4) MIN.
Dimensions in inches and (millimeters)
Case: JEDEC DO-201AD molded plastic body over passivated chip Terminals: Plated axial leads, solderable per MIL-STD-750, Method 2026 Polarity: Color band denotes cathode end Mounting Position: Any Weight: 0.045 ounce, 1.2 grams
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25C ambient temperature unless otherwise specified.
SYMBOLS
UG4A
UG4B
UG4C
UG4D
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 4.0A 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)
50 35 50
100 70 100 4.0
150 105 150
200 140 200
Volts Volts Volts Amps
IFSM VF IR trr
150.0 0.95 5.0 300.0 20.0 30.0 50.0 15.0 30.0 20.0 25.0 -55 to +150
Amps Volts A ns ns nC pF C/W C
TA=25C TA=100C TJ=25C TJ =100C TJ=25C TJ=100C
trr Qrr CJ RJA TJ, TSTG
Maximum recovered stored charge
(NOTE 2)
Typical junction capacitance (NOTE 3) Typical thermal resistance (NOTE 4) Operating junction 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 tester: IF=4.0A, 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 at 0.375" (9.5mm) lead length
4/98
RATINGS AND CHARACTERISTIC CURVES UG4A THRU UG4D
FIG. 1 - FORWARD CURRENT DERATING CURVE FIG. 2 - MAXIMUM NON-REPETITIVE PEAK FORWARD SURGE CURRENT
200
PEAK FORWARD SURGE CURRENT, AMPERES
AVERAGE FORWARD RECTIFIED CURRENT, AMPERES
6.0 5.0 4.0 3.0 2.0 1.0 0 0
RESISTIVE OR INDUCTIVE LOAD TL, LEAD TEMPERATURE 0.375" (9.5mm) LEAD LENGTH
100
TL=75C 8.3ms SINGLE HALF SINE-WAVE (JEDEC Method)
TA, AMBIENT TEMPERATURE P.C.B. MOUNTED 0.5 x 0.5" (12 x 12mm) COPPER PADS
10
1
1
10
NUMBER OF CYCLES AT 60 HZ
100
25
50
75
100 125 150 175
TEMPERATURE, C
INSTANTANEOUS FORWARD CURRENT, AMPERES
100
TJ=100C TJ=25C PULSE WIDTH=300s 1% DUTY CYCLE
INSTANTANEOUS REVERSE LEAKAGE CURRENT, MICROAMPERES
FIG. 3 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS
FIG. 4 - TYPICAL REVERSE LEAKAGE CHARACTERISTICS
1,000
10
100
TJ=100C
10
1
1
TJ=25C
0.1
0.1 0.01 0
0.01 0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
20
40
60
80
100
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
PERCENT OF RATED PEAK REVERSE VOLTAGE, %
FIG. 6 - TYPICAL JUNCTION CAPACITANCE RECOVERED STORED CHARGE/REVERSE RECOVERY TIME, nC/ns FIG. 5 - REVERSE SWITCHING CHARACTERISTICS
100
JUNCTION CAPACITANCE, pF
60
IF=4.0A VR=30V di/dt=150A/s
TJ=25C f=1.0 MHz Vsig=50mVp-p
50
di/dt=100A/s
40 30 20 10 0
di/dt=20A/s di/dt=50A/s di/dt=150A/s di/dt=50A/s di/dt=20A/s
10
trr Qrr
0
25
50
75
100 125 150 175
1 0.1
1
10
100
JUNCTION TEMPERATURE, C
REVERSE VOLTAGE, VOLTS

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