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FEATURES
GALAXY ELECTRICAL
1N17- - - 1N19
VOLTAGE RANGE: 20 --- 40 V
CURRENT: 1.0 A
SCHOTTKY BARRIER RECTIFIER
Metal-Semiconductor junction with guard ring
Epitaxial construction
Low forward voltage drop,low switching losses
High surge capability
For use in low voltage,high frequency inverters free
xxxx
wheeling,and polarity protection applications
The plastic material carries U/L recognition 94V-0
R
-1
MECHANICAL DATA
Case:JEDEC
R--1,molded
plastic
Terminals: Axial lead ,solderable per
MIL- STD-202,Method 208
Polarity: Color band denotes cathode
Weight: 0.007 ounces,0.20 grams
Mounting position: Any
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25
ambient temperature unless otherwise specified.
Single phase,half wave,60 Hz,resistive or inductive load. For capacitive load,derate by 20%.
IN17
Maximum recurrent peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forw ard rectified current
9.5mm lead length,
@T
A
=75
IN18
30
21
30
1.0
IN19
40
28
40
UNITS
V
V
V
A
V
RRM
V
RMS
V
DC
I
F(AV)
20
14
20
Peak forw ard surge current
8.3ms single half-sine-w ave
superimposed on rated load
@T
J
=70
I
FSM
0.45
0.75
25.0
A
Maximum instantaneous forw ard voltage @ 1.0A
z
(Note 1)
@ 3.0A
Maximum reverse current
at rated DC blocking voltage
Typical junction capacitance
Typical thermal resistance
@T
A
=25
@T
A
=100
(Note2)
(Note3)
V
F
I
R
C
J
R
θ
JA
T
J
T
STG
0.55
0.875
1.0
10.0
110
50
- 55 ---- + 125
- 55 ---- + 150
0.60
0.90
V
mA
pF
/W
Operating junction temperature range
Storage temperature range
NOTE: 1. Pulse test : 300
s pulse width,1% duty cy cle.
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2. Measured at 1.0MH
Z
and applied rev erse v oltage of 4.0V DC.
3.Thermal resistance junction to ambient
Document Number 0266018
BL
GALAXY ELECTRICAL
1.
RATINGS AND CHARACTERISTIC CURVES
1N17 - - - 1N19
FIG.1 -- FORWARD DERATING CURVE
AVERAGE FORWARD RECTIFIED CURRENT
PEAK FORWARD SURGE CURRENT
AMPERES
FIG.2 -- PEAK FORWARD SURGE CURRENT
1.0
30
25
20
25
10
5
0
1
10
100
T
J
=T
J
MAX
8.3ms Single Half
Sine-Wave
0.75
AMPERES
0.5
0.25
Resistive or
Inductive Load
0.375"(9.5mm)Lead
Length
0
0
25
50
75
100
125
150
LEAD TEMPERATURE,
NUMBER OF CYCLES AT 60Hz
FIG.3 -- TYPICAL INSTANTANEOUS FORWARD
X -CHARACTERISTICS
INSTANTANEOUS FORWARD CURRENT
FIG.4 -- TYPICAL JUNCTION CAPACITANCE
20
400
CAPACITANCE, pF
10
1N 1 7
1N 1 9
T
J
=25℃
f=1.0MHz
Vsig=50mVp-p
AMPERES
100
1
1N 1 8
T
J
= 25
P ulse w id th= 300
1 % D uty C yc le
s
10
0.1
1
10
100
.1
.1
.3
.5
.7
.9
1.1 1.3
1.5 1.7 1.9
2.1
INSTANTANEOUS FORWARD VOLTAGE, VOLTS
REVERSE VOLTAGE,VOLTS
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Document Number 0266018
BL
GALAXY ELECTRICAL
2.
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