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
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
UF1J
UF1K
UNITS
Maximum Recurrent Peak Reverse Voltage
V
RRM
50
100
200
400
600
800
Volts
Maximum RMS Voltage
V
RMS
35
70
140
280
420
560
Volts
Maximum DC Blocking Voltage
V
DC
50
100
200
400
600
800
Volts
Maximum Average Forward Rectified Current,
at T
L
=100
J
I
(AV)
1.0
Amps
Peak Forward Surge Current 8.3ms single half sine-
wave superimposed on rated load(JEDEC method)
T
A
=55
J
I
FSM
30.0
Amps
Maximum Instantaneous Forward Voltage at 1.0A
V
F
1.0
1.4
1.7
Volts
Maximum DC Reverse Current T
A
=25
J
At Rated DC Blocking Voltage T
A
=100
J
I
R
10.0
100
g
A
Maximum Reverse Recovery Time (Note 1) T
J
=25
J
T
RR
50.0
100.0
n
S
Typical Junction capacitance (Note 2)
C
J
17.0
P
F
Maximum Thermal Resistance (Note 3)
R
K
JL
30
J
/W
Operating and Storage Temperature Range
T
J
,T
STG
-50 to +150
J
NOTES:
1. Reverse Recovery Test Conditions: I
F
=0.5A, I
R
=1.0A, Irr=0.25A
2. Measured at 1 MHz and Applied reverse voltage of 4.0 volts
3. 8.0mm
2
(.013mm thick) land areas
SMB/DO-214AA
RATING AND CHARACTERISTIC CURVES
UF1A THRU UF1K
NOTE:1.Rise Time = 7ns max.
Input Impedance = 1 megohm. 22pF
2.Rise Time = 10ns max.
Source Impedance = 50 Ohms
t
rr
+0.5A
0
-0.25
-1.0
SET TIME 1cm
BASE FOR
50 ns/cm
Fig. 1-REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
10
1.0
0.1
.01
0
.
2 .4
.
6 .8
1.0 1.2 1.4
TYPICAL
TJ = 25
J
UF1A
UF1G
UF1K
100
10
1
0.1
1
10
100
TJ = 25
J
f = 1.0MHz
Vsig = 50m Vp-p
REVERSE VOLTAGE, VOLTS
Fig. 2-FORWARD CHARACTERISTICS
Fig. 3- TYPICAL JUNCTION CAPACITANCE
2.0
1.0
25
50
75 100
125
150
175
SINGLE PHASE HALF WAVE
RESISTIVE OR INDUCTIVE
P.C.B MOUNTED ON
0.3150.315"(8.08.0mm)
PAD AREAS
LEAD TEMPERATURE,
J
30
25
20
15
10
5
1 2
5 10 20
50 100
8.3ms SINGLE HALF SINE WAVE
JEDEC METHOD
NUMBER OF CYCLES AT 60Hz
Fig. 4- FORWARD CURRENT DERATING CURVE
Fig. 5-PEAK FORWARD SURGE CURRENT
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