INTEGRATED CIRCUITS DIVISION
www.ixysic.com
DS-LCA126-R04 1
LCA126
Single-Pole, Normally Open
OptoMOS® Relay
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Pb
Part # Description
LCA126 6-Pin DIP (50/Tube)
LCA126S 6-Pin Surface Mount (50/Tube)
LCA126STR 6-Pin Surface Mount (1,000/Reel)
Parameter Ratings Units
Blocking Voltage 250 VP
Load Current 170 mArms / mADC
On-Resistance (max) 15
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
• 3750Vrms Input/Output Isolation
• Low Drive Power Requirements (TTL/CMOS
Compatible)
• High Reliability
• Arc-Free With No Snubbing Circuits
• FCC Compatible
• VDE Compatible
• No EMI/RFI Generation
• Small 6-Pin Package
• Machine Insertable, Wave Solderable
• Surface Mount Tape & Reel Version Available
Switching Characteristics of
Normally Open (Form A) Devices
Approvals
Form-A
IF
ILOAD
10%
90%
ton toff
1
3
2
4
5
6
+ Control
– Control
NC
Load
Do Not Use
Load
AC/DC Configuration
+ Load
– Load
1
3
2
4
5
6
+ Control
– Control
NC
DC Only Configuration
• UL Recognized Component: File E76270
• CSA Certified Component: Certificate 1175739
• EN/IEC 60950-1 Certified Component:
TUV Certificate B 09 07 49410 004
The LCA126 is a normally open (1-Form-A) solid
state relay, with enhanced on-resistance, that uses
optically coupled MOSFET technology to provide
3750Vrms of input to output isolation.
Its optically coupled outputs, which use the patented
OptoMOS architecture, are controlled by a highly
efficient GaAIAs infrared LED.
Use the LCA126 to replace mechanical relays,
and gain the superior reliability associated with
semiconductor devices, which, because they have no
moving parts, offer faster, bounce-free switching in a
compact surface mount or through-hole package.
INTEGRATED CIRCUITS DIVISION
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2R04
LCA126
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 @ 25°C
Parameter Ratings Units
Blocking Voltage 250 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
AC/DC Confi guration, Continuous 1-IL
- - 170 mArms / mADC
DC Confi guration, Continuous 1- - - 300 mADC
Peak t=10ms ILPK - - 400 mAP
On-Resistance 2
AC/DC Confi guration IL=170mA RON
-1015
DC Confi guration IL=300mA - 4 5
Off-State Leakage Current VL=250VPILEAK --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 to Activate IL = 170mA IF--5mA
Input Control Current to Deactivate - 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
Input to Output Capacitance - CI/O -3 - pF
1 If both poles operate, then the load current must be derated so that the package power dissipation value is not exceeded.
2 Measurement taken within 1 second of on-time.
Electrical Characteristics @ 25°C
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LCA126
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R04
*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.
PERFORMANCE DATA (@25ºC Unless Otherwise Noted)*
Typical LED Forward Voltage Drop
(N=50, IF=5mA)
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 Time
(N=50, IF=5mA, IL=170mADC)
0.625 1.125 1.625 2.1250.875 1.375 1.875
Turn-On Time (ms)
Device Count (N)
25
20
15
10
5
0
Typical Turn-Off Time
(N=50, IF=5mA, IL=170mADC)
0.35 0.40 0.45 0.550.50 0.60 0.65
Turn-Off Time (ms)
Device Count (N)
25
20
15
10
5
0
Typical IF for Switch Operation
(N=50, IL=170mADC)
LED Current (mA)
Device Count (N)
25
20
15
10
5
0
.50 .70 .90.40 .60 .80 1.0
Typical IF for Switch Dropout
(N=50, IL=170mADC)
25
20
15
10
5
0
0.3 0.5 0.7 0.90.4 0.6 0.8
LED Current (mA)
Device Count (N)
Typical On-Resistance Distribution
(N=50, IF=5mA, IL=170mADC)
35
30
25
20
15
10
5
0
11.6 12.0 12.411.8 12.2
On-Resistance (:)
Device Count (N)
Typical Blocking Voltage Distribution
(N=50)
35
30
25
20
15
10
5
0
305 325 345 365315 335 355
Blocking Voltage (VP)
Device Count (N)
Typical LED Forward Voltage Drop
vs. Temperature
Temperature (ºC)
LED Forward Voltage Drop (V)
1.8
1.6
1.4
1.2
1.0
0.8
-40 -20 0 20 40 60 80 120100
I
F
=50mA
I
F
=10mA
I
F
=5mA
Typical Turn-On Time
vs.LED Forward Current
(IL=170mADC)
LED Forward Current (mA)
Turn-On Time (ms)
05 1015202530354045
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
50
Typical Turn-Off Time
vs. LED Forward Current
(IL=170mADC)
LED Forward Current (mA)
Turn-Off Time (ms)
05 1015202530354045
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
50
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4R04
LCA126
*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.
PERFORMANCE DATA (@25ºC Unless Otherwise Noted)*
Typical Turn-On Time
vs. Temperature
(IL=170mADC)
Temperature (ºC)
IF=5mA
IF=10mA
Turn-On Time (ms)
-40
2.0
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
Typical Turn-Off Time
vs. Temperature
(IF=5mA, IL=170mADC)
Temperature (ºC)
Turn-Off Time (ms)
-40
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-20 0 20 40 60 80 100
Typical IF for Switch Operation
vs. Temperature
(IL=170mADC)
Temperature (ºC)
LED Current (mA)
-40
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
2.5
2.0
1.5
1.0
0.5
0
-20 0 20 40 60 80 100
Typical Load Current vs. Load Voltage
(IF=5mA)
Load Voltage (V)
Load Current (mA)
200
150
100
50
0
-50
-100
-150
-200
-2.5 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 2.5
Typical Blocking Voltage
vs. Temperature
Temperature (ºC)
Blocking Voltage (VP)
-40
350
345
340
335
330
325
320
315
-20 0 20 40 60 80 100
Typical Leakage vs. Temperature
Measured across Pins 4&6
Temperature (ºC)
Leakage (PA)
-40
0.025
0.020
0.015
0.010
0.005
0
-20 0 20 40 60 80 100
Energy Rating Curve
Time
Load Current (A)
10Ps
1.2
1.0
0.8
0.6
0.4
0.2
0
1ms 100ms 10s100Ps 10ms 1s 100s
Typical On-Resistance vs. Temperature
AC/DC Configuration
(IF=5mA, IL=120mADC)
Temperature (ºC)
On-Resistance (:)
-40
30
25
20
15
10
5
0
-20 0 20 40 60 80 100
Maximum Load Current
vs. Temperature
Temperature (ºC)
Load Current (mA)
300
250
200
150
100
50
-40 -20 0 20 40 60 80 120100
I
F
=5mA
IF=10mA
DC Configuration
AC/DC Configuration IF=10mA
IF=5mA
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LCA126
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R04
Manufacturing Information
Moisture Sensitivity
All plastic encapsulated semiconductor packages are susceptible to moisture ingression. IXYS Integrated
Circuits Division 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
LCA126 / LCA126S 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
LCA126 / LCA126S 250ºC for 30 seconds
Board Wash
IXYS Integrated Circuits Division recommends the use of no-clean flux formulations. However, board washing to
remove flux residue is acceptable. Since IXYS Integrated Circuits Division 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.
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INTEGRATED CIRCUITS DIVISION
www.ixysic.com
6R04
LCA126
MECHANICAL DIMENSIONS
LCA126
LCA126S
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)
Pin 1
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)
Pin 1
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For additional information please visit our website at: www.ixysic.com
7
LCA126
IXYS Integrated Circuits Division 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 IXYS Integrated
Circuits Division’s Standard Terms and Conditions of Sale, IXYS Integrated Circuits Division 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 IXYS Integrated Circuits Division’s product may result in direct physical harm, injury, or death to a person or severe
property or environmental damage. IXYS Integrated Circuits Division reserves the right to discontinue or make changes to its products at any time without notice.
Specification: DS-LCA126-R04
©Copyright 2012, IXYS Integrated Circuits Division
OptoMOS® is a registered trademark of IXYS Integrated Circuits Division
All rights reserved. Printed in USA.
12/22/2012
MECHANICAL DIMENSIONS
LCA126STR Tape & Reel
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)
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