Document
UF1A THRU UF1K
SURFACE MOUNT ULTRAFAST RECTIFIER VOLTAGE - 50 to 800 Volts CURRENT - 1.0 Ampere
FEATURES
l For surface mounted applications l Low profile package l Built-in strain relief l Easy pick and place l Ultrafast recovery times for high efficiency l Plastic package has Underwriters Laboratory
Flammability Classification 94V-O l Glass passivated junction l High temperature soldering:
260 ¢J /10 seconds at terminals
SMB/DO-214AA
MECHANICAL DATA
Case: JEDEC DO-214AA molded plastic Terminals: Solder plated, solderable per MIL-STD-750,
Method 2026 Polarity: Indicated by cathode band Standard packaging: 12mm tape (EIA-481) Weight: 0.003 ounce, 0.093 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 ¢J ambient temperature unless otherwise specified.
Resistive or inductive load.
For capacitive load, derate current by 20%.
SYMBOLS UF1A UF1B UF1D UF1G
Maximum Recurrent Peak Reverse Voltage
VRRM
50 100 200 400
Maximum RMS Voltage
VRMS
35 70 140 280
Maximum DC Blocking Voltage
VDC 50 100 200 400
Maximum Average Forward Rectified Current, at TL=100 ¢J
I(AV)
1.0
Peak Forward Surge Current 8.3ms single half sine- IFSM
30.0
wave superimposed on rated load(JEDEC method)
TA=55 ¢J
Maximum Instantaneous Forward Voltage at 1.0A Maximum DC Reverse Current TA=25 ¢J At Rated DC Blocking Voltage TA=100 ¢J
VF IR
1.0 1.4 10.0 100
Maximum Reverse Recovery Time (Note 1) TJ=25 ¢J TRR
50.0
Typical Junction capacitance (Note 2) Maximum Thermal Resistance (Note 3)
CJ R £KJL
17.0 30
Operating and Storage Temperature Range
TJ,TSTG
-50 to +150
NOTES:
1. Reverse Recovery Test Conditions: IF=0.5A, IR=1.0A, Irr=0.25A
2. Measured at 1 MHz and Applied reverse voltage of 4.0 volts 3. 8.0mm2 (.013mm thick) land areas
UF1J
600 420 600
UF1K
800 560 800
UNITS Volts Volts Volts Amps
Amps
1.7 100.0
Volts £g A
nS PF ¢J /W ¢J
RATING AND CHARACTERISTIC CURVES UF1A THRU UF1K
+0.5A
0 -0.25
trr
NOTE:1.Rise Time = 7ns max. Input Impedance = 1 megohm. 22pF
2.Rise Time = 10ns max.
Source Impedance = 50 Ohms
-1.0
SET TIME BASE FOR 50 ns/cm
1cm
PEAK FORWARD SURGE CURRENT, AMPERES
Fig. 1-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
10 TYPICAL
TJ = 25 ¢J
UF1A 1.0
UF1G
0.1
100 TJ = 25 ¢J f = 1.0MHz Vsig = 50m Vp-p
10
IFM, Apk
UF1K
.01
0 .2 .4 .6 .8 1.0 1.2 1.4
Fig. 2-FORWARD CHARACTERISTICS
1 0.1 1 10
REVERSE VOLTAGE, VOLTS
100
Fig. 3- TYPICAL JUNCTION CAPACITANCE
PEAK FORWARD SURGE CURRENT, AMPERES
AVERAGE FORWARD CURRENT AMPERES
2.0 SINGLE PHASE HALF WAVE RESISTIVE OR INDUCTIVE P.C.B MOUNTED ON 0.315×0.315"(8.0×8.0mm) PAD AREAS
1.0
25 50 75 100 125 150 175 LEAD TEMPERATURE, ¢J
Fig. 4- FORWARD CURRENT DERATING CURVE
30
25 20 8.3ms SINGLE HALF SINE WAVE
JEDEC METHOD 15
10
5
12
5 10 20
50 100
NUMBER OF CYCLES AT 60Hz
Fig. 5-PEAK FORWARD SURGE CURRENT
.