1
www.clare.com
LCA125
DS-LCA125-R8
LCA125 is a 300V, 170mA, 16
1-Form-A relay. It fea-
tures enhanced peak load current capability with a 300V
peak load voltage. Current limiting version is available.
("L" suffix)
Telecommunications
Telecom Switching
Tip/Ring Circuits
Modem Switching (Laptop, Notebook, Pocket Size)
Hookswitch
Dial Pulsing
Ground Start
Ringer Injection
Instrumentation
Multiplexers
Data Acquisition
Electronic Switching
I/O Subsystems
Meters (Watt-Hour, Water, Gas)
Medical Equipment-Patient/Equipment Isolation
Security
Aerospace
Industrial Controls
UL Recognized: File Number E76270
CSA Certified: File Number LR 43639-10
BSI Certified to:
BS EN 60950:1992 (BS7002:1992)
Certificate #: 7344
BS EN 41003:1993
Certificate #: 7344
Small 6 Pin DIP Package
Low Drive Power Requirements (TTL/CMOS
Compatible)
No Moving Parts
High Reliability
Arc-Free With No Snubbing Circuits
3750V
RMS
Input/Output Isolation
FCC Compatible
VDE Compatible
No EMI/RFI Generation
Machine Insertable, Wave Solderable
Surface Mount and Tape & Reel
Versions Available
Applications
Features
Description
Approvals
Single Pole OptoMOS
Relay
Ordering Information
Part #
Description
LCA125
6 Pin DIP (50/Tube)
LCA125S
6 Pin Surface Mount (50/Tube)
LCA125STR
6 Pin Surface Mount (1000/Reel)
LCA125
Units
Load Voltage
300
V
Load Current
170
mA
Max R
ON
16
Pin Configuration
CONTROL
LOAD
10ms
10%
10%
90%
+
T
ON
T
OFF
+
+
1
3
2
4
5
6
+ Control
Control
Do Not Use
Load
Do Not Use
Load
AC/DC Configuration
LCA125/LCA125L Pinout
1
3
2
4
5
6
+ Control
Control
Do Not Use
+ Load
Load
DC Only Configuration
LCA125/125L Pinout
Switching Characteristics of
Normally Open (Form A) Devices
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LCA125
Rev. 8
Absolute Maximum Ratings are stress ratings. Stresses
in excess of these ratings can cause permanent damage
to the device. Functional operation of the device at these
or any other conditions beyond those indicated in the
operational sections of this data sheet is not implied.
Exposure of the device to the absolute maximum ratings
for an extended period may degrade the device and effect
its reliability.
Absolute Maximum Ratings (@ 25 C)
2
Parameter
Min
Typ
Max Units
Input Power Dissipation
-
-
150
1
mW
Input Control Current
-
-
50
mA
Peak (10ms)
-
-
1
A
Reverse Input Voltage
-
-
5
V
Total Power Dissipation
-
-
800
2
mW
Isolation Voltage
Input to Output
3750
-
-
V
RMS
Operational Temperature
-40
-
+85
C
Storage Temperature
-40
-
+125
C
Soldering Temperature
DIP Package
-
-
+260
C
Surface Mount Package
-
-
+220
C
(10 Seconds Max.)
1
Derate Linearly 1.33 mw/C
2
Derate Linearly 6.67 mw/C
Electrical Characteristics
Parameter
Conditions
Symbol
Min
Typ
Max
Units
Output Characteristics @ 25C
Load Voltage (Peak)
-
V
L
-
-
300
V
Load Current (Continuous)
AC/DC Configuration
-
I
L
-
-
170
mA
DC Configuration
-
I
L
-
-
300
mA
Peak Load Current
10ms
I
L
-
-
400
mA
On-Resistance
AC/DC Configuration
I
L
=170mA
R
ON
-
10
16
DC Configuration
I
L
=300mA
R
ON
-
4
5
Off-State Leakage Current
V
L
=300V
I
LEAK
-
-
1
A
Switching Speeds
Turn-On
I
F
=5mA, V
L
=10V
T
ON
-
-
5
ms
Turn-Off
I
F
=5mA, v
L
=10V
T
OFF
-
-
5
ms
Output Capacitance
50V; f=1MHz
C
OUT
-
50
-
-pF
Input Characteristics @ 25C
Input Control Current
I
L
=170mA
I
F
5
-
50
mA
Input Dropout Current
-
-
0.4
0.7
-
mA
Input Voltage Drop
I
F
=5mA
V
F
0.9
1.2
1.4
V
Reverse Input Voltage
-
V
R
-
-
5
V
Reverse Input Current
V
R
=5V
I
R
-
-
10
A
Input to Output Capacitance
-
C
I/O
-
3
-
pF
Input to Output Isolation
-
V
I/O
3750
-
-
V
RMS
LCA125
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Rev. 8
PERFORMANCE DATA*
The Performance data shown in the graphs above is typical of device performance. For guaranteed parameters not indicated in the written specifications, please contact
our application department.
3
LCA125
Typical LED Forward Voltage Drop
(N=50 Ambient Temperature = 25
C)
I
F
= 5mADC
35
30
25
20
15
10
5
0
1.17
1.19
1.21
1.23
1.25
LED Forward Voltage (V)
Device Count (N)
LCA125
Typical On-Resistance Distribution
(N=50 Ambient Temperature = 25
C)
(Load Current = 170mADC; I
F
= 5mADC)
30
25
20
15
10
5
0
8.25
8.75
9.25
9.75
10.25
On-Resistance (
)
Device Count (N)
LCA125
Typical Blocking Voltage Distribution
(N=50 Ambient Temperature = 25
C)
25
20
15
10
5
0
302.5
311.5
320.5
338.5
338.5
347.5
Blocking Voltage (V)
Device Count (N)
LCA125
Typical I
F
for Switch Operation
(N=50 Ambient Temperature = 25
C)
(Load Current = 170mADC)
LED Current (mA)
Device Count (N)
25
20
15
10
5
0
0.54
0.78
0.90
0.42
0.30
0.66
LCA125
Typical I
F
for Switch Dropout
(N=50 Ambient Temperature = 25
C)
(Load Current = 170mADC
25
20
15
10
5
0
0.30
0.54
0.78
0.18
0.42
0.66
LED Current (mA)
Device Count (N)
)
LCA125
Typical Turn-On Time
(N=50 Ambient Temperature = 25
C)
(Load Current = 170mADC; I
F
= 5mADC)
0.875 1.225 1.575 1.925 2.275 2.625 2.975
Turn-On (ms)
Device Count (N)
25
20
15
10
5
0
LCA125
Typical Turn-Off Time
(N=50 Ambient Temperature = 25
C)
(Load Current = 170mADC; I
F
= 5mADC)
0.10
0.18
0.26
0.06
0.14
0.22
0.30
Turn-Off (ms)
Device Count (N)
25
20
15
10
5
0
LCA125
Typical Load Current vs. Temperature
Temperature (
C)
Load Current (mA)
300
250
200
150
100
50
0
-40
-20
0
20
40
60
80
120
100
20mA
10mA
5mA
LCA125
Typical Leakage vs. Temperature
(Measured across Pins 4 & 6)
Temperature (
C)
Leakage (
A)
-40
0.100
0.090
0.080
0.070
0.060
0.050
0.040
0.030
0.020
0.010
0
-20
0
20
40
60
80
100
LCA125
Typical Blocking Voltage vs. Temperature
Temperature (
C)
Blocking Voltage (V
RMS
)
-40
340
335
330
325
320
315
310
305
-20
0
20
40
60
80
100
LCA125
Typical Turn-On vs. Temperature
(Load Current = 170mADC)
Temperature (
C)
5mA
10mA
20mA
Turn-On (ms)
-40
3.0
2.5
2.0
1.5
1.0
0.5
0
-20
0
20
40
60
80
100
LCA125
Typical Turn-Off vs. Temperature
(Load Current = 170mADC)
Temperature (
C)
Turn-Off (ms)
-40
0.300
0.250
0.200
0.150
0.100
0.050
0
-20
0
20
40
60
80
100
5mA
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4
LCA125
Rev. 8
PERFORMANCE DATA*
*The Performance data shown in the graphs above is typical of device performance. For guaranteed parameters not indicated in the written specifications, please contact
our application department.
LCA125
Typical I
F
for Switch Dropout
vs. Temperature
(Load Current = 170mADC)
Temperature (
C)
Current (mA)
-40
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-20
0
20
40
60
80
100
LCA125
Typical Turn-Off vs. LED Forward Current
(Load Current = 170mADC)
LED Forward Current (mA)
Turn-Off (ms)
0
5
10
15
20
25
30
35
40
45
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
50
LCA125
Typical Turn-On vs. LED Forward Current
(Load Current = 170mADC)
LED Forward Current (mA)
Turn-On (ms)
0
5
10
15
20
25
30
35
40
45
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
50
LCA125
Typical On-Resistance vs. Temperature
(Load Current = 170mADC; I
F
= 5mADC)
Temperature (
C)
On-Resistance (
)
-40
60.000
50.000
40.000
30.000
20.000
10.000
0
-20
0
20
40
60
80
100
LCA125
Typical I
F
for Switch Operation
vs. Temperature
(Load Current = 170mADC)
Temperature (
C)
LED Current (mA)
-40
1.800
1.600
1.400
1.200
1.000
0.800
0.600
0.400
0.200
0
-20
0
20
40
60
80
100
LCA125
Typical Load Current vs. Load Voltage
(Ambient Temperature = 25
C)
I
F
= 5mADC
Load Voltage (V)
Load Current (mA)
200
150
100
50
0
-50
-100
-150
-200
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
LCA125
Energy Rating Curve
Time
Load Current (A)
1.2
1.0
0.8
0.6
0.4
0.2
0
10
s
1ms
100ms
10s
100
s
10ms
1s
100s
LCA125
Typical LED Forward Voltage Drop
vs. Temperature
Temperature (
C)
LED Forward Voltage Drop (V)
1.8
1.6
1.4
1.2
1.0
0.8
-40
-20
0
20
40
60
80
120
100
50mA
30mA
20mA
10mA
5mA
LCA125
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5
Rev. 8
Dimensions
mm
(inches)
Mechanical Dimensions
PC Board Pattern
(Top View)
2.540
.127
(.100
.005)
8.305
.127
(.327
.005)
1.905
.127
(.075
.005)
1.499
.127
(.059
.005)
4.445
.127
(.175
.005)
3.302
(.130)
7.620
.254
(.300
.010)
6.350
.127
(.250
.005)
8.382
.635
(.330
.025)
2.540
.127
(.100
.005)
9.525
.254
(.375
.010)
.457
.076
(.018
.003)
.254 TYP.
(.010)
.635 TYP.
(.025)
6 Pin DIP Surface Mount ("S" Suffix)
Tape and Reel Packaging for 6 Pin Surface Mount Package
7.493
.102
(.295
.004)
12.090
(.476)
330.2 DIA.
(13.00)
1.753
.102
(.069
.004)
3.987
.102
(.157
.004)
1.498
.102
(.059
.004)
6.731 MAX.
(.265)
.406 MAX.
(.016)
4.877
(.192)
Top Cover
Tape
2.007
.102
(.079
.004)
11.989
.102
(.472
.004)
User Direction of Feed
.050R TYP.
16.002
.305
(.630
.012)
10.100
(.398)
Embossment
Embossed Carrier
Top Cover
Tape Thickness
.102 MAX.
(.004)
10.100
.102
(.398
.004)
1.549
.102
(.061
.004)
1
6
PC Board Pattern
(Top View)
6.350
.127
(.250
.005)
2.540
.127
(.100
.005)
7.620
.127
(.300
.005)
5.080
.127
(.200
.005)
6-.800 DIA.
(6-.031 DIA.)
6.350
.127
(.250
.005)
8.382
.635
(.330
.025)
2.540
.127
(.100
.005)
9.144
(.360)
.457
.076
(.018
.003)
6 Pin DIP Through Hole (Standard)
7.239 TYP.
(.285)
3.302
(.130)
7.620
.254
(.300
.010)
9.144
.508
(.360
.020)
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