US1A THRU US1M
Features
Mechanical Data
· Plastic package has Underwriters Laboratory Flammability
Classification 94V-0
· Low forward voltage drop
· High current capability
· High reliability
· Low power loss, high effciency
· High surge current capability
· High speed switching
· Low leakage
Maximum Ratings And Electrical Characteristics
· Case : JEDEC DO-214AC(SMA)molded plastic body
· Lead : Solder Plated, solderable per MIL-STD-750,
method 2026
· Polarity : Color band denotes cathode end
· Weight: 0.002 ounce, 0.064 gram
(Ratings at 25℃ ambient temperature unless otherwise specified, Single phase, half wave 60Hz, resistive or inductive
load. For capacitive load, derate by 20%)
CURRENT 1.0 Ampere
VOLTAGE 50 to 1000 Volts
Notes:
(1) Test conditions: I
F
=0.5A, I
R
=1.0A, I
rr
=0.25A.
(2) Measured at 1MHz and applied reverse voltage of 4.0 Volts.
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Volts
Peak forward surge current 8.3ms single
half sine-wave superimposed on rated load
(JEDEC method)
V
DC
Maximum average forward rectified current
0.375"(9.5mm) lead length T
T
=75℃
Maximum instantaneous forward voltage
at 1.0A
V
RRM
Volts
Symbols Units
1.3V
F
V
RMS
1.0
AmpsI
FSM
T
J
T
STG
-55 to +150 ℃
Volts
Amp
Maximum DC Reverse Current at rated DC
blocking voltage T
A
= 25℃
Maximum reverse recovery time (Note 1)
Typical junction capacitance (Note 2)
Operating Junction and Storage
temperature Range
50
US1A
35
50
5.0
75
Volts
μA
ns
pF
I
(AV)
I
R
Trr
20
C
J
100
US1B
70
100
200
US1D
140
200
400
US1G
280
400
600
US1J
420
600
800
US1K
560
800
1000
US1M
700
1000
Maximum full load reverse current full cycle
average. 0.375"(9.5mm) lead length at
T
A
=100℃
15
50
30.0
100
1.71.0
300
US1E
210
300
Dimensions in inches and (millimeters)
0.058(1.47)
0.052(1.32)
0.110(2.79)
0.100(2.54)
0.012(0.31)
0.006(0.15)
0.177(4.50)
0.157(3.99)
0.090(2.29)
0.078(1.98)
0.060(1.52)
0.030(0.76)
0.005(0.127)
MAX.
0.208(5.28)
0.194(4.93)
DO-214AC (SMA)
RATINGS AND CHARACTERISTIC CURVES US1A THRU US1M
25 50 75 100 125 150 175
FIG.2- MAXIMUM AVERAGE
FORWARD CURRENT DERATING
AVERAGE FORWARD CURRENT. (A)
O
LEAD TEMPERATURE. ( C)
FORWARD VOLTAGE. (V)
FIG.5- MAXIMUM NON-REPETITIVE FORWARD SURGE
CURRENT
PEAK FORWARD SURGE CURRENT. (A)
NUMBER OF CYCLES AT 60Hz
FIG.3- TYPICAL REVERSE CHARACTERISTICS
INSTANTANEOUS REVERSE CURRENT. (uA)
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
FIG.6- TYPICAL JUNCTION CAPACITANCE
JUNCTION CAPACITANCE.(pF)
REVERSE VOLTAGE. (V)
O
Tj=100 C
O
Tj=25 C
8.3ms Single Half Sine Wave
JEDEC Method
INSTANTANEOUS FORWARD CURRENT. (A)
FIG.1- REVERSE RECOVERY TIME CHARACTERISTIC AND TEST CIRCUIT DIAGRAM
trr
1cm
50
NONINDUCTIVE
10
NONINDUCTIVE
DUT
OSCILLOSCOPE
(NOTE 1)
+0.5A
-1.0A
NON
INDUCTIVE
PULSE
GENERATOR
( NOTE 2 ) -0.25A
0
NOTES: 1. Rise Time=7ns max. Input Impedanec=
1 megohm 22pf
2. Rise Time=10ns max. Sourse Impedance=
50 ohms
(+)
(-)
SET TIME BASE FOR
5/ 10ns/ cm
FIG.4- TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
(+)
50Vdc
(approx)
(-)
1.5
1.0
0.5
0
O
Tj=25 C
1000
100
10
1
.1 20 40 60 80 100 120
100
10
1.0
0.1
0.01 .2 .4 .6 .8 1.0 1.2 1.4 1.6
40
35
30
25
20
15
10
1 2 5 10 20 5 0 100
70
60
50
40
30
20
10
.1 .5 1 2 5 10 20 50 100 200 500 1000
Single Phase
Half Wave 60Hz
Resistive or
Inductive Load
0.375" (9.5mm)
Lead Length
US1A-US1D
US1G
US1J-US1M
US1A-US1E
US1J- US1M
