Document Number: 83806
www.vishay.com
Revision 17-August-01
343
FEATURES
Current Limit Protection
l/O Isolation, 3750 V
RMS
Typical
R
ON
20
Load Voltage 350 V
Load Current 150 mA
High Surge Capability
Linear, AC/DC Operation
Clean Bounce Free Switching
Low Power Consumption
SMD Lead Available on Tape and Reel
AGENCY APPROVALS
UL File No. E52744
CSA Certification 093751
BSI
APPLICATIONS
General Telecom Switching
On/off Hook Control
Ring Delay
Dial Pulse
Ground Start
Ground Fault Protection
Instrumentation
Industrial Controls
DESCRIPTION
The LH1502 relays contain normally open and normally
closed switches that can be used independently as a 1
Form A and 1 Form B relay, or when used together, as a
1 Form C relay. The relays are constructed as a mult.-
chip hybrid device. Actuation contral is via an Infrared
LED. The output switch is a combination of a photo-
diode array with MOSFET switches and control circuity.
Part Identification
Part Number
Description
LH1502BB
8-pin DIP, Tubes
LH1502BAC
8-pin SMD, Gullwing, Tubes
LH1502BACTR
8-pin SMD, Gullwing, Tape and Reel
.380 (9.65)
.318 (8.08)
.100 (2.54)
.360 (9.14)
.250 (6.35)
.018 (.46)
6-.031 (6-.80) Dia.
.100 (2.54)
.300 (7.62)
.300 (7.62)
.250 (6.35)
.285 (7.24) Typ.
.130 (3.30)
.300 (7.62)
.360 (9.14) Typ.
Package Dimensions in Inches (mm)
DIP
SMD
8
7
6
5
1
2
3
4
S2'
S2'
S2
S2
S1
S1
S1'
S1'
.380 (9.65)
.318 (8.08)
.100 (2.54)
.375 (9.53)
.250 (6.35)
.018 (.46)
.175 (4.45)
.130 (3.30)
.025 (.64) Typ.
.010 (.25) Typ.
.300 (7.62)
.059 (1.50)
.075 (1.90)
.327 (8.31)
.100 (2.54)
LH1502BB/BAC/BACTR
Dual 1 Form A/B, C
Solid State Relay
Document Number: 83806
www.vishay.com
Revision 17-August-01
344
Absolute Maximum Ratings,
T
A
=25
C
Stresses in excess of the Absolute Maximum Ratings can cause permanent
damage to the device. These are absolute stress ratings only. Functional opera-
tion of the device is not implied at these or any other conditions in excess of
those given in the operational sections of the data sheet. Exposure to maximum
rating conditions for extended periods can adversely affect device reliability.
Ambient Operating Temperature Range,
T
A
.................... 40 to +85
C
Storage Temperature Range,
T
stg
.................................. 40 to +125
C
Pin Soldering Temperature, t=10 s max,
T
S
................................ 260
C
Input/Output Isolation Test Voltage,
t=1.0 s,
I
ISO
=10
A max.,
V
ISO
...........................................3750 V
RMS
Pole-to-Pole Isolation Voltage (S1 to S2)*
(dry air, dust free, at sea level) ................................................. 1600 V
LED Continuous Forward Current,
I
F
..........................................50 mA
LED Reverse Voltage,
I
R
10
A,
V
R
.............................................. 8.0 V
dc or Peak ac Load Voltage,
I
L
50
A,
V
L
................................... 350 V
Continuous dc Load Current,
I
L
(Form C Operation) .................................................................150 mA
Peak Load Current,
I
P
(t=100 ms) Form A ............................................................................
(single shot) Form B ................................................................350 mA
Output Power Dissipation (continuous),
P
DISS
......................... 600 mW
*
Breakdown occurs between the output pins external to the package.
Refer to Current Limit Performance Application Note for a discussion on
relay operation during transient currents.
Recommended Operating Conditions
90
0
60
120
150
30
LOAD CURRENT (mA)
40 20 0 20 40 60 80
AMBIENT TEMPERATURE (
C)
FORM A
5.0 mA
90
0
50
150
120
30
40 20 0 20 40 60 80
Load Current (mA)
Ambient Temperature (
C)
5.0 mA
FORM B
Electrical Characteristics,
T
A
=25
C
Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of
engineering evaluations. Typical values are for information only and are not part of the testing requirements.
Parameter
Sym.
Min.
Typ.
Max.
Units
Test Conditions
Input
LED Forward Current for Switch Turn-on
(NO)
I
Fon
--
0.6
2.0
mA
I
L
=100 mA, t=10 ms
LED Forward Current for Switch Turn-off
(NO)
I
Foff
0.4
0.5
--
mA
V
L
=300 V
LED Forward Current for Switch Turn-on
(NC)
I
Fon
0.2
0.9
--
mA
I
L
=100 mA, t=10 ms
LED Forward Current for Switch Turn-off
(NC)
I
Foff
--
1.0
2.0
mA
V
L
=300 V
LED Forward Voltage
V
F
1.15
1.26
1.45
V
I
F
=10 mA
Output
ON-resistance:
(NO, NC)
R
ON
12
20
25
I
F
=5.0 mA (NO)
0 mA (NC)
I
L
=50 mA (NC)
OFF-resistance:
(NO)
R
OFF
0.35
5000
--
G
I
F
=0 mA,
V
L
=100 V
(NC)
0.1
1.4
--
I
F
=5.0 mA,
V
L
=100 V
Current Limit
(NO)
I
LMT
270
290
380
mA
I
F
=5.0 mA, t=5.0 ms
V
L
=5.0 V
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