Document Number: 83807
Revision 06-March-02
www.vishay.com
3–46
FEATURES
Current Limit Protection
l/O Isolation, 5300 V
Typical
R
ON
Load Voltage 350 V
Load Current 110 mA
High Surge Capability
Linear, AC/DC Operation
Clean Bounce Free Switching
Low Power Consumption
High Reliability Monolithic Receptor
SMD Lead Available on Tape and Reel
RMS
20
AGENCY APPROVALS
UL – File No. E52744
CSA – Certi
fi
cation 093751
VDE 0884 Approval
APPLICATIONS
General Telecom Switching
– On/off Hook Control
– Ring Delay
– Dial Pulse
– Ground Start
– Ground Fault Protection
Instrumentation
Industrial Controls
DESCRIPTION
The LH1503 relays are DPST normally open switches
(2 Form A) that can replace electromechanical relays in
many applications. The relays are constructed using a
GaAlAs LED for actuation control and an integrated
monolithic die for the switch output. The die, fabricated
in a high-voltage dielectrically isolated technology, is
comprised of a photodiode array, switch control circuity,
and DMOS switches. In addition, these relays employ
current-limiting circuity, enabling them to pass FCC
68.302 and other regulatory voltage surge requirements
when overvoltage protection is provided.
Part Identi
fi
cation
Part Number
Description
LH1503AB
8-pin DIP, Tubes
LH1503AAC
8-pin SMD, Gullwing, Tubes
LH1503AACTR
8-pin SMD, Gullwing, Tape and Reel
pin one ID
.268 (6.81)
.255 (6.48)
.390 (9.91)
.379 (9.63)
.045 (1.14)
.030 (0.76)
4
°
typ.
.100 (2.54
10
°
3
°
–9
°
.012 (.30)
.008 (.20)
.300 (7.62)
typ.
.022 (.56)
.018 (.46)
.130 (3.30)
.110 (2.79)
.150 (3.81)
.130 (3.30)
.035 (.89)
.020 (.51)
.250 (6.35)
.230 (5.84)
4
3
2
1
.031 (0.79)
.050 (1.27)
5
6
7
8
Pin one I.D.
.390 (9.91)
.379 (9.63)
.045 (1.14)
.030 (0.78)
.040 (1.02)
.020 (.51)
4
°
typ.
.008 (.25)
.004 (.10)
.150 (3.81)
.130 (3.30)
.10typ.
.050
(1.27)
typ.
.312 (7.80)
.298 (7.52)
.315
(8.00)
typ.
.395 (10.03)
.375 (9.52)
.031 (.79)
typ.
.268 (6.81)
.255 (6.48)
Radius
.010
(2.54)
typ.
10
°
3
°
to 7
°
Package Dimensions in Inches (mm)
DIP
SMD
8
7
6
5
S2'
S2'
S2
S2
S1
S1
S1'
S1'
1
2
3
4
LH1503AB/AAC/AACTR
2 Form A
Solid State Relay