- 42 -
LL5817 THRU LL5819
1.0 AMP. Surface Mount Schottky Barrier Rectifiers
Voltage Range
20 to 40 Volts
Current
1.0 Ampere
Features
Surge overload ratings to 25 amperes
peak
Ideal for printed circuit board
Reliable low cost construction utilizing
molded plastic technique results in
inexpensive product
Mounting
position:
Any
Weight: 0.12 gram
MELF
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25
ambient temperature unless otherwise specified.
Single phase, half wave, 60 Hz, resistive or inductive load.
For capacitive load, derate current by 20%
Type Number
Symbol
LL5817 LL5818 LL5819
Units
Maximum Recurrent Peak Reverse Voltage
V
RRM
20 30 40
V
Maximum RMS Voltage
V
RMS
14 21 28
V
Maximum DC Blocking Voltage
V
DC
20 30 40
V
Maximum Average Forward Rectified Current
@T
L
= 90
I
(AV)
1.0 A
Peak Forward Surge Current, 8.3 ms Single Half
Sine-wave Superimposed on Rated Load (JEDEC
method )
I
FSM
25 A
Maximum Instantaneous Forward Voltage @1.0A
V
F
0.450 0.550 0.600
V
Maximum Instantaneous Forward Voltage @3.0A
V
F
0.750 0.875 0.900
V
Maximum DC Reverse Current @ T
A
=25
at Rated DC Blocking Voltage @ T
A
=100
I
R
1.0
10
mA
mA
Typical Thermal Resistance (Note 1)
R
JA
80
/W
Typical Junction Capacitance ( Note 2 )
Cj
110 pF
Operating and Storage Temperature Range
T
J
,T
STG
- 65 to + 125 / - 65 to + 150
Notes: 1. Thermal Resistance Junction to Ambient
2. Measured at 1 MHz and Applied Reverse Voltage of 4.0 Volts D.C.
- 43 -
RATINGS AND CHARACTERISTIC CURVES (LL5817 THRU LL5819)
FIG.3- TYPICAL FORWARD CHARACTERISTICS
INST
ANT
ANEOUS
FOR
W
ARD
CURRENT
.
(A)
.1
.3
.5
.7
.9
1.1
1.3
1.5
1.7
1.9
2.1
0.1
1.0
10
20
FORWARD VOLTAGE. (V)
Tj=25 C
Pulse Width=300 s
1% Duty Cycle
o
LL5817
LL5818~LL5819
FIG.2- TYPICAL JUNCTION CAPACITANCE
JUNCTION
CAP
ACIT
ANCE.(pF)
.1
.4
1.0
4
10
40
80 100
10
20
40
60
100
80
200
400
REVERSE VOLTAGE. (V)
Tj=25 C
O
FIG.4- MAXIMUM NON-REPETITIVE FORWARD
SURGE CURRENT
PEAK
FOR
W
ARD
SURGE
CURRENT
.
(A)
1
2
5
10
20
100
50
5
0
10
25
20
15
30
NUMBER OF CYCLES AT 60Hz
8.3ms Single Half Sine Wave
JEDEC Method
FIG.1- MAXIMUM FORWARD CURRENT DERATING
CURVE
A
VERAGE
FOR
W
ARD
CURRENT
.
(A)
0
20
40
60
80
100
120
140
0
.25
.50
.75
1.0
LEAD TEMPERATURE. (
)
O
C
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