5201
Characteristics
(T
A
=25
C)
Emitter
Sym
Min.
Typ.
Max.
Units
Condition
Forward
Voltage
V
F
1.25 1.5
V
I
F
=10 mA
V
F
Temperature
Coefficient
V
F
/
T
A
2.2
mV/
C
Reverse
Current
I
R
1 10
A
V
R
=6 V
Junction
Capacitance
C
J
15
pF
V
R
=0 V
f=1 MHz
Dynamic
Resistance
V
F
/
I
F
6
W
I
F
=10 mA
Switching Time
t
R
, t
F
1
s
I
F
=10 mA
Detector
Output Break-
down Voltage
VB
350
V
I
B
=50
A
Output OFF-State
Leakage Current
I
T(OFF)
0.1
0.1
1
5
A
A
V
T
=100 V,
I
F
=5 mA
V
T
=300 V,
I
F
=2.5 mA
Terminal
Capacitance
C
T
24
pF
V
T
=0,
f= MHz
Current Limit
150
mA
Package
LED Forward
Current,
Turn-Off
I
Ft
h
1.5
2.5
mA
V
L
=
300 V,
T
A
=25
C
ON-resistance
R
ON
20
30
50
W
I
T
=
25 mA,
I
F
=0 mA
Turn-on Time
T
ON
3
ms
I
F
=5 mA,
V
L
=50 V,
R
L
=1 k
Turn-off Time
T
OFF
2
ms
Package Dimensions in Inches (mm)
A
K
NC
S
NC
S'
.010 (.25)
.014 (.35)
.110 (2.79)
.150 (3.81)
.130 (3.30)
.150 (3.81)
.020 (.051) Min.
.300 (7.62)
Typ.
.031 (0.80)
.035 (0.90)
.100 (2.54) Typ.
.039
(1.00)
Min.
.018 (0.45)
.022 (0.55)
.248 (6.30)
.256 (6.50)
.335 (8.50)
.343 (8.70)
Pin One ID.
6
5
4
1
2
3
18
Typ.
.300 (7.62)
.347 (8.82)
4
Typ.
1
2
3
6
5
4
FEATURES
Normally Closed, Single Pole Single Throw
Operation
Control 350 VAC or DC Voltage
Switch 100 mA Loads
LED Control Current, 1.5 mA
Low ON-Resistance
dv/dt, >500 V/ms
Isolation Test Voltage, 3750 VAC
RMS
Current Limiting
Underwriters Lab File # E52744
APPLICATIONS
Telephone Switch Hook
High Voltage Test Equipment
TRIAC Driver
Motor Control
Industrial Control Systems
DESCRIPTION
The LH1298 is a single pole single throw (SPST), nor-
mally closed (NC), solid state relay. The relay can con-
trol AC or DC loads currents up to 100 mA, with a
supply voltage up to 350 V. The device is packaged in
a six pin 0.3 inch dual-in line package. This package
offers an insulation dielectric withstand of 3750
VAC
RMS
.
The coupler consists of a AlGaAs LED that is optically
coupled to a dielectrically isolated monolithic inte-
grated circuit. The IC chip consists of a photodiode
array, control circuitry and high voltage DMOS transis-
tors. The typical ON resistance between the output
terminals is 30
at 0 mA LED current. The switch
offers low off-state leakage current at LED current of
5 mA or greater. There is on board output current limit-
ing circuitry.
Maximum Ratings
Terminal Voltage .................................................. 350 V
Terminal Current ............................................... 100 mA
LED Forward Current.......................................... 60 mA
LED Reverse Current............................................ 6 mA
Isolation Test Voltage.............................. 3750 VAC
RMS
Isolation Resistance
V
IO
=500 V, T
A
=25
C ....................................
10
12
V
IO
=500 V, T
A
=100
C ...................................
10
11 W
Operating Temperature Range................ 40 to +85
C
Storage Temperature Range ................. 40 to +150
C
Lead Soldering Temperature
at 260
C, 2 mm from case .............................. 5 sec.
LH1298
HIGH VOLTAGE, SOLID STATE RELAY
OPTOCOUPLER
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