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Document Number: 83816
Rev. 1.5, 17-Mar-11
For technical questions, contact:
optocoupleranswers@vishay.com
www.vishay.com
1
This datasheet is subject to change without notice.
THE PRODUCT DESCRIBED HEREIN AND THIS DATASHEET ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc91000
1 Form A Solid State Relay
LH1518AAB, LH1518AABTR, LH1518AT
Vishay Semiconductors
DESCRIPTION
Vishay solid state relays (SSRs) are miniature, optically
coupled relays with high-voltage MOSFET outputs. The
LH1518 relays are capable of switching AC or DC loads from
as little as nanovolts to hundreds of volts.
The relays can switch currents in the range of nanoamps to
hundreds of milliamps. The MOSFET switches are ideal for
small signal switching and are primarily suited for DC or
audio frequency applications.
The LH1518 relays feature a monolithic output die that
minimizes wire bonds and permits easy integration of
high-performance circuits such as current limiting in
normally-open switches. The output die integrates the
photodiode receptor array, turn-on and turn-off control
circuitry, and the MOSFET switches. The optically-coupled
input is controlled by a highly efficient GaAlAs infrared LED.
FEATURES
Isolation test voltage 5300 V
RMS
Current limit protection
High reliability monolithic detector
Low power consumption
Clean bounce free switching
High surge capability
Surface mountable
Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
APPLICATIONS
General telecom switching
Instrumentation
Industrial controls
6
S
'
S
DC
1
5
2
4
3
S
S
'
i179041-2
DIP
S
MD
AGENCY APPROVALS
UL1577: file no. E52744 system code H, double protection
CSA:
certification no. 093751
BSI:
certification no. 7979/7980
DIN EN:
60747-5-2 (VDE 0884)/60747-5-5 (pending),
available with option 1
FIMKO:
25419
ORDERING INFORMATION
L
H
1
5
1
8
#
#
#
T
R
PART NUMBER
ELECTR.
VARIATION
PACKAGE
CONFIG.
TAPE AND
REEL
PACKAGE
SMD-6, tubes
SMD-6, tape and reel
DIP-6, tubes
UL, CSA, BSI, FIMKO
LH1518AAB
LH1518AABTR
LH1518AT
ABSOLUTE MAXIMUM RATINGS
(T
amb
= 25 °C, unless otherwise specified)
PARAMETER
INPUT
LED continuous forward current
LED reverse voltage
OUTPUT
DC or peak AC load voltage
Continuous DC load current,
bidirektional operation
Continuous DC load current,
unidirektional operation
Peak load current (single shot)
TEST CONDITION
SYMBOL
VALUE
UNIT
I
F
V
R
50
8
mA
V
I
R
10 μA
V
L
250
V
I
L
155
mA
I
L
300
mA
t = 100 ms
I
P
(1)
> 0.1 mm
7.62 mm
DIP
S
MD