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DS-LCA125L-R05 1
LCA125L
Single-Pole, Normally Open
OptoMOS® Relay
RoHS
2002/95/EC e3
Pb
Part # Description
LCA125L 6-Pin DIP (50/Tube)
LCA125LS 6-Pin Surface Mount (50/Tube)
LCA125LSTR 6-Pin Surface Mount (1,000/Reel)
Parameter Ratings Units
Blocking Voltage 300 VP
Load Current 170 mA
Max RON 20 Ω
Applications
Features
Description
Ordering Information
Pin Configuration
• Telecommunications
• Telecom Switching
• Tip/Ring Circuits
• Modem Switching (Laptop, Notebook,
Pocket Size)
• Hook Switch
• Dial Pulsing
• Ground Start
• Ringing Injection
• Instrumentation
• Multiplexers
• Data Acquisition
• Electronic Switching
• I/O Subsystems
• Meters (Watt-Hour, Water, Gas)
• Medical Equipment—Patient/Equipment Isolation
• Security
• Aerospace
• Industrial Controls
• Current Limiting
• 3750Vrms Input/Output Isolation
• Small 6-Pin Package
• Low Drive Power Requirements (TTL/CMOS
Compatible)
• High Reliability
• Arc-Free With No Snubbing Circuits
• FCC Compatible
• VDE Compatible
• No EMI/RFI Generation
• Machine Insertable, Wave Solderable
• Surface Mount Tape & Reel Version Available
The LCA125L is a current-limiting, 300V, 170mA,
20Ω, normally open (1-Form-A) solid state relay that
uses optically coupled MOSFET technology to provide
3750Vrms of input to output isolation. The efficient
MOSFET switches and photovoltaic die use Clare’s
patented OptoMOS architecture. The optically-coupled
output is controlled by a highly efficient GaAIAs
infrared LED.
The LCA125L can be used to replace mechanical
relays and offers the superior reliability associated with
semiconductor devices. Because it has no moving
parts, it can offer faster, bounce-free switching in a
more compact surface mount or thru-hole package.
Switching Characteristics of
Normally Open Devices
Approvals
• UL Recognized Component: File E76270
• CSA Certified Component: Certificate 1175739
• EN/IEC 60950-1Certified Component:
TUV Certificate: B 09 07 49410 004
Form-A
IF
ILOAD
10%
90%
ton toff
1
3
2
4
5
6
+ Control
– Control
Do Not Use
Load
Do Not Use
Load
AC/DC Configuration
1
3
2
4
5
6
+ Control
– Control
Do Not Use
+ Load
– Load
DC Only Configuration
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2R05
LCA125L
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 conditions
beyond those indicated in the operational sections of this
data sheet is not implied.
Absolute Maximum Ratings @ 25ºC
Parameter Ratings Units
Blocking Voltage 300 VP
Reverse Input Voltage 5 V
Input Control Current
Peak (10ms)
50 mA
1A
Input Power Dissipation 1150 mW
Total Power Dissipation 2800 mW
Isolation Voltage, Input to Output 3750 Vrms
Operational Temperature -40 to +85 °C
Storage Temperature -40 to +125 °C
1 Derate Linearly 1.33 mW / ºC
2 Derate Linearly 6.67 mW / ºC
Parameter Conditions Symbol Min Typ Max Units
Output Characteristics
Load Current, Continuous
AC/DC Confi guration - IL
- - 170 mA
DC Confi guration - - - 300
Load Current Limiting - ICL 190 235 280 mA
On-Resistance 1
AC/DC Confi guration IL=170mA RON
-1220
Ω
DC Confi guration IL=300mA - 4 6
Off-State Leakage Current VL=300VPILEAK --1µA
Switching Speeds
Turn-On IF = 5mA, VL = 10V ton --5ms
Turn-Off toff --5ms
Output Capacitance VL=50V, f=1MHz COUT -50 -pF
Input Characteristics
Input Control Current IL = 170mA IF--5mA
Input Dropout Current - IF0.4 0.7 - mA
Input Voltage Drop IF = 5mA VF0.9 1.2 1.4 V
Reverse Input Current VR = 5V IR- - 10 µA
Common Characteristics
Capacitance, Input to Output - CI/O -3 -pF
1 Measurement taken within 1 second of on-time.
Electrical Characteristics @ 25ºC
LCA125L
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R05
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.
Typical Turn-On Time
(N=50, IF=5mA, IL=170mADC, TA=25ºC)
0.23 0.41 0.59 0.770.680.500.32
Turn-On (ms)
Device Count (N)
30
25
20
15
10
5
0
Typical Turn-Off Time
(N=50, IF=5mA, IL=170mADC, TA=25ºC)
0.06 0.14 0.22 0.300.10 0.18 0.26
Turn-Off (ms)
Device Count (N)
35
30
25
20
15
10
5
0
Typical On-Resistance Distribution
(N=50, IF=5mA, IL=170mADC, TA=25ºC)
35
30
25
20
15
10
5
0
14.0 14.8 15.614.4 15.2
On-Resistance (Ω)
Device Count (N)
Typical IF for Switch Operation
(N=50, IL=170mADC, TA=25ºC)
0.88 1.18 1.480.73 1.03 1.33 1.63
LED Current (mA)
Device Count (N)
40
35
30
25
20
15
10
5
0
Typical IF for Switch Dropout
(N=50, IL=170mADC, TA=25ºC)
0.5 0.9 1.30.3 0.7 1.1 1.5
LED Current (mA)
Device Count (N)
25
20
15
10
5
0
Typical Blocking Voltage Distribution
(N=50, TA=25ºC)
35
30
25
20
15
10
5
0
380 388 396384 392 400
Blocking Voltage (VP)
Device Count (N)
Typical LED Forward Voltage Drop
(N=50, IF=5mA, TA=25ºC)
35
30
25
20
15
10
5
0
1.17 1.19 1.21 1.23 1.25
LED Forward Voltage Drop (V)
Device Count (N)
Typical Turn-On
vs. LED Forward Current
(IL=170mADC)
Turn-On (ms)
02 4 6 8 10 12 14 16 18
0.40
0.35
0.30
0.25
0.20
0.15
0.10
20
Typical Turn-Off
vs. LED Forward Current
(IL=170mADC)
Turn-Off (ms)
LED Forward Current (mA)
024681012141618
20
0.16
0.15
0.14
0.13
0.12
0.11
0.10
Typical LED Forward Voltage Drop
vs. Temperature
Temperature (ºC)
LED Forward Voltage Drop (V)
-40
1.8
1.6
1.4
1.2
1.0
0.8
-20 0 20 40 60 80 120100
I
F
=50mA
I
F
=30mA
I
F
=20mA
I
F
=10mA
I
F
=5mA
Typical Turn-On vs. Temperature
(IL=170mADC)
Temperature (ºC)
Turn-On (ms)
-40
0.6
0.5
0.4
0.3
0.2
0.1
0
-20 0 20 40 60 80 100
IF=5mA
IF=10mA
IF=20mA
Typical Turn-Off vs. Temperature
(IF=5mA, IL=170mADC)
Temperature (ºC)
Turn-Off (ms)
-40
0.30
0.25
0.20
0.15
0.10
0.05
0
-20 0 20 40 60 80 100
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4R05
LCA125L
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.
Typical IF for Switch Operation
vs. Temperature
(IL=170mADC)
Temperature (ºC)
LED Current (mA)
-40
3.0
2.5
2.0
1.5
1.0
0.5
0-20 0 20 40 60 80 100
Typical IF for Switch Dropout
vs. Temperature
(IL=170mADC)
Temperature (ºC)
LED Current (mA)
-40
3.0
2.5
2.0
1.5
1.0
0.5
0
-20 0 20 40 60 80 100
Typical On-Resistance vs. Temperature
(IF=5mA, IL=170mADC)
Temperature (ºC)
On-Resistance (Ω)
-40
60
50
40
30
20
10
0
-20 0 20 40 60 80 100
Typical Load Current vs. Load Voltage
(IF=5mA, TA=25ºC)
Load Voltage (V)
Load Current (mA)
200
150
100
50
0
-50
-100
-150
-200
-2.5 -1.5-2.0 -0.5-1.0 0 0.5 1.5 2.01.0 2.5
Typical Load Current vs. Temperature
Temperature (ºC)
Load Current (mA)
300
250
200
150
100
50
0
-40 -20 0 20 40 60 80 120100
I
F
=20mA
I
F
=10mA
I
F
=5mA
Typical Blocking Voltage
vs. Temperature
Temperature (ºC)
Blocking Voltage (VP)
-40
400
395
390
385
380
375
-20 0 20 40 60 80 100
Typical Leakage vs. Temperature
Measured across Pins 4&6
Temperature (ºC)
Leakage (μA)
-40
0.18
0.16
0.14
0.12
0.10
0.08
0.06
-20 0 20 40 60 80 100
Energy Rating Curve
Time
Load Current (A)
10μs
1.2
1.0
0.8
0.6
0.4
0.2
0
1ms100μs 100ms 1s
10ms 10s 100s
Typical Current Limiting
vs. Temperature
(IF=5mA)
Temperature (ºC)
Current (mA)
400
350
300
250
200
150
100
50
0
-40 -20 0 20 40 60 80 100
LCA125L
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Manufacturing Information
Moisture Sensitivity
All plastic encapsulated semiconductor packages are susceptible to moisture ingression. Clare classified all
of its plastic encapsulated devices for moisture sensitivity according to the latest version of the joint industry
standard, IPC/JEDEC J-STD-020, in force at the time of product evaluation. We test all of our products to
the maximum conditions set forth in the standard, and guarantee proper operation of our devices when handled
according to the limitations and information in that standard as well as to any limitations set forth in the information or
standards referenced below.
Failure to adhere to the warnings or limitations as established by the listed specifications could result in reduced
product performance, reduction of operable life, and/or reduction of overall reliability.
This product carries a Moisture Sensitivity Level (MSL) rating as shown below, and should be handled according
to the requirements of the latest version of the joint industry standard IPC/JEDEC J-STD-033.
Device Moisture Sensitivity Level (MSL) Rating
LCA125L / LCA125LS MSL 1
ESD Sensitivity
This product is ESD Sensitive, and should be handled according to the industry standard JESD-625.
Reflow Profile
This product has a maximum body temperature and time rating as shown below. All other guidelines of J-STD-020
must be observed.
Device Maximum Temperature x Time
LCA125L / LCA125LS 250ºC for 30 seconds
Board Wash
Clare recommends the use of no-clean flux formulations. However, board washing to remove flux residue is
acceptable. Since Clare employs the use of silicone coating as an optical waveguide in many of its optically isolated
products, the use of a short drying bake could be necessary if a wash is used after solder reflow processes.
Chlorine- or Fluorine-based solvents or fluxes should not be used. Cleaning methods that employ ultrasonic energy
should not be used.
RoHS
2002/95/EC e3
Pb
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6R05
LCA125L
MECHANICAL DIMENSIONS
Dimensions
mm
(inches)
PCB Hole Pattern
6.350 ± 0.127
(0.250 ± 0.005)
2.540 ± 0.127
(0.100 ± 0.005)
7.620 ± 0.127
(0.300 ± 0.005)
5.080 ± 0.127
(0.200 ± 0.005)
6 - 0.800 DIA.
(6 - 0.031 DIA.)
0.254 ± 0.0127
(0.010 ± 0.0005)
9.144 ± 0.508
(0.360 ± 0.020)
7.239 TYP
(0.285 TYP)
7.620 ± 0.254
(0.300 ± 0.010)
3.302 ± 0.051
(0.130 ± 0.002) 4.064 TYP
(0.160 TYP)
0.457 ± 0.076
(0.018 ± 0.003)
8.382 ± 0.381
(0.330 ± 0.015) 2.54 ± 0.127
(0.100 ± 0.005)
6.350 ± 0.127
(0.250 ± 0.005)
1.651 ± 0.254
(0.065 ± 0.010)
Dimensions
mm
(inches)
PCB Land Pattern
0.254 ± 0.0127
(0.010 ± 0.0005)
7.620 ± 0.254
(0.300 ± 0.010)
0.635 ± 0.127
(0.025 ± 0.005)
3.302 ± 0.051
(0.130 ± 0.002)
4.445 ± 0.254
(0.175 ± 0.010)
2.54
(0.10)
8.90
(0.3503)
1.65
(0.0649)
0.65
(0.0255)
8.382 ± 0.381
(0.330 ± 0.015) 2.54 ± 0.127
(0.100 ± 0.005)
9.524 ± 0.508
(0.375 ± 0.020) 6.350 ± 0.127
(0.250 ± 0.005)
0.457 ± 0.076
(0.018 ± 0.003)
1.651 ± 0.254
(0.065 ± 0.010)
1.651 ± 0.254
(0.065 ± 0.010)
LCA125L
LCA125LS
Clare, Inc. makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications
and product descriptions at any time without notice. Neither circuit patent licenses nor indemnity are expressed or implied. Except as set forth in Clare’s Standard Terms and Conditions of
Sale, Clare, Inc. assumes no liability whatsoever, and disclaims any express or implied warranty, relating to its products including, but not limited to, the implied warranty of merchantability,
fitness for a particular purpose, or infringement of any intellectual property right.
The products described in this document are not designed, intended, authorized or warranted for use as components in systems intended for surgical implant into the body, or in other
applications intended to support or sustain life, or where malfunction of Clare’s product may result in direct physical harm, injury, or death to a person or severe property or environmental
damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice.
Specification: DS-LCA125L-R05
©Copyright 2010, Clare, Inc.
OptoMOS® is a registered trademark of Clare, Inc.
All rights reserved. Printed in USA.
7/22/2010
For additional information please visit our website at: www.clare.com
7
LCA125L
NOTES:
1. All dimensions carry tolerances of EIA Standard 481-2
2. The tape complies with all “Notes” for constant dimensions listed on page 5 of EIA-481-2
Dimensions
mm
(inches)
Embossment
Embossed
Carrier
330.2 Dia
(13.00 Dia)
Top Cover
Tape Thickness
0.102 Max
(0.004 Max)
W=16.00
(0.63)
B0 = 10.10
(0.398)
A0 = 10.10
(0.398)
P = 12.00
(0.472)
K1 = 3.80
(0.15)
K0 = 4.90
(0.19)
User Direction of Feed
LCA125LS Tape & Reel
