RECTRON
SEMICONDUCTOR
TECHNICAL SPECIFICATION
UFM101
THRU
UFM104
SURFACE MOUNT GLASS PASSIVATED
SUPER FAST SILICON RECTIFIER
VOLTAGE RANGE 50 to 200 Volts CURRENT 1.0 Ampere
FEATURES
*
*
*
*
*
Glass passivated device
For surface mounted applications
Ultrafast recovery times for high efficiency
Low forward voltage, low power loss
Low leakage current
DO-214AC
MECHANICAL DATA
* Epoxy : Device has UL flammability classification 94V-0
* Metallurgically bonded construction
* Mounting position: Any
* Weight: 0.057 gram
0.067 (1.70)
0.051 (1.29)
0.180(4.57)
0.160(4.06)
0.110 (2.79)
0.086 (2.18)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
o
0.091 (2.31)
0.067 (1.70)
0.059 (1.50)
0.035 (0.89)
0.209 (5.31)
0.185 (4.70)
0.012 (0.305)
0.006 (0.152)
0.008 (0.203)
0.004 (0.102)
Dimensions in inches and (millimeters)
MAXIMUM RATINGS
(At T
A
= 25
o
C unless otherwise noted)
RATINGS
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Volts
Maximum DC Blocking Voltage
Maximum Average Forward Current
o
at T
A
= 55 C
Peak Forward Surge Current I
FM
(surge): 8.3 ms single half
sine-wave superimposed on rated load (JEDEC method)
Typical Junction Capacitance (Note 2)
Operating and Storage Temperature Range
SYMBOL
V
RRM
V
RMS
V
DC
I
O
I
FSM
C
J
T
J
, T
STG
UFM101
50
35
50
UFM102
100
70
100
1.0
30
7
-55 to + 150
UFM103
150
105
150
UFM104
200
140
200
UNITS
Volts
Volts
Volts
Amps
Amps
pF
0
C
ELECTRICAL CHARACTERISTICS
(At T
A
= 25
o
C unless otherwise noted)
CHARACTERISTICS
Maximum Forward Voltage at 1.0A DC
Maximum DC Reverse Current
at Rated DC Blocking Voltage
Maximum Reverse Recovery Time (Note 1)
NOTES : 1. Test Conditions: I
F
=0.5A, I
R
=-1.0A, I
RR
=-0.25A.
2. Measured at 1 MH
Z
and applied reverse voltage of 4.0 volts.
@T
A
= 25
o
C
@T
A
=100 C
trr
o
SYMBOL
V
F
I
R
UFM101
UFM102
0.92
5.0
100
20
UFM103
UFM104
UNITS
Volts
uAmps
nSec
2002-1
RATING AND CHARACTERISTIC CURVES ( UFM101 THRU UFM104 )
FIG. 1 - TEST CIRCUIT DIAGRAM AND REVERSE RECOVERY TIME CHARACTERISTIC
trr
+0.5A
(-)
PULSE
GENERATOR
AVERAGE FORWARD CURENT, (A)
50
NONINDUCTIVE
10
NON-INDUCTIVE
FIG. 2 - TYPICAL FORWARD
CURRENT DERATING CURVE
2.0
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
(+)
25 Vdc
(approx)
(-)
D.U.T
0
-0.25A
1.0
(NOTE 2)
1
NON-
INDUCTIVE
OSCILLOSCOPE
(NOTE 1)
(+)
-1.0A
NOTES:
1 Rise Time = 7ns max. Input Impedance =
1 megohm. 22 pF.
2. Rise Time = 10ns max. Source Impedance =
50 ohms.
0
0 25 50 75 100 125 150 175
1cm
SET TIME BASE FOR
5/10 ns/cm
AMBIENT TEMPERATURE (
)
FIG. 3 - TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT, (uA)
INSTANTANEOUS FORWARD CURRENT, (A)
FIG. 4 - TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
100
100
TJ = 150
10
TJ = 100
10
1.0
1
TJ = 25
TJ = 25
.1
.1
Pulse Width = 300uS
1% Duty Cycle
.01
0
20
40
60
80 100 120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
FIG. 5 - MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT
.01
.4
.6
.8
1.0 1.2 1.4
1.6 1.8
INSTANTANEOUS FORWARD VOLTAGE, (V)
FIG. 6 - TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE, (pF)
PEAK FORWARD SURGE CURRENT, (A)
70
60
50
40
TJ = 25
200
100
60
40
20
TJ = 25
30
20
10
0
.1
.5 1 2
5 10 20 50 100 200 400
NUMBER OF CYCLES AT 60Hz
10
6
4
2
1
.1
.2
.4
1.0 2 4
10 20 40 100
REVERSE VOLTAGE, ( V )
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