LCA126
Single-Pole, Normally Open
OptoMOS® Relay
INTEGRATED CIRCUITS DIVISION
Parameter
Blocking Voltage
Load Current
On-Resistance (max)
Ratings
250
170
15
Units
VP
mArms / mADC
Features
Description
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.
• 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
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.
Approvals
Applications
• 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
• UL Recognized Component: File E76270
• CSA Certified Component: Certificate 1175739
• EN/IEC 60950-1 Certified Component:
TUV Certificate B 09 07 49410 004
Ordering Information
Part #
LCA126
LCA126S
LCA126STR
Description
6-Pin DIP (50/Tube)
6-Pin Surface Mount (50/Tube)
6-Pin Surface Mount (1,000/Reel)
Pin Configuration
AC/DC Configuration
+ Control
– Control
NC
1
6
2
5
3
4
Load
Do Not Use
Load
DC Only Configuration
+ Control
– Control
NC
1
6
2
5
3
4
+ Load
– Load
Switching Characteristics of
Normally Open (Form A) Devices
Form-A
IF
90%
Pb
DS-LCA126-R04
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INTEGRATED CIRCUITS DIVISION
LCA126
Absolute Maximum Ratings @ 25°C
Parameter
Blocking Voltage
Reverse Input Voltage
Input Control Current
Peak (10ms)
Input Power Dissipation 1
Total Power Dissipation 2
Isolation Voltage, Input to Output
Operational Temperature
Storage Temperature
1
Derate linearly 1.33 mW / ºC
2
Derate linearly 6.67 mW / ºC
Ratings
250
5
50
1
150
800
3750
-40 to +85
-40 to +125
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.
Units
VP
V
mA
A
mW
mW
Vrms
°C
°C
Electrical Characteristics @ 25°C
Parameter
Output Characteristics
Load Current
AC/DC Configuration, Continuous 1
DC Configuration, Continuous 1
Peak
On-Resistance 2
AC/DC Configuration
DC Configuration
Off-State Leakage Current
Switching Speeds
Turn-On
Turn-Off
Output Capacitance
Input Characteristics
Input Control Current to Activate
Input Control Current to Deactivate
Input Voltage Drop
Reverse Input Current
Common Characteristics
Input to Output Capacitance
1
2
Conditions
Min
Typ
Max
Units
-
-
170
300
400
mArms / mADC
mADC
mAP
10
4
-
15
5
1
ILEAK
-
µA
VL=50V, f=1MHz
ton
toff
COUT
-
50
5
5
-
ms
ms
pF
IL = 170mA
IF = 5mA
VR = 5V
IF
IF
VF
IR
0.4
0.9
-
0.7
1.2
-
5
1.4
10
mA
mA
V
µA
-
CI/O
-
3
-
pF
t=10ms
IL=170mA
IL=300mA
VL=250VP
IF = 5mA, VL = 10V
Symbol
IL
ILPK
RON
If both poles operate, then the load current must be derated so that the package power dissipation value is not exceeded.
Measurement taken within 1 second of on-time.
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INTEGRATED CIRCUITS DIVISION
LCA126
PERFORMANCE DATA (@25ºC Unless Otherwise Noted)*
25
20
15
10
5
1.17
25
1.19
1.21
1.23
15
10
5
20
15
10
5
0
0.35
0.625 0.875 1.125 1.375 1.625 1.875 2.125
1.25
0.40
0.45
0.50
0.55
0.60
0.65
LED Forward Voltage Drop (V)
Turn-On Time (ms)
Turn-Off Time (ms)
Typical IF for Switch Operation
(N=50, IL=170mADC)
Typical IF for Switch Dropout
(N=50, IL=170mADC)
Typical On-Resistance Distribution
(N=50, IF=5mA, IL=170mADC)
25
20
Device Count (N)
Device Count (N)
20
0
0
Typical Turn-Off Time
(N=50, IF=5mA, IL=170mADC)
25
Device Count (N)
Device Count (N)
Device Count (N)
30
25
Typical Turn-On Time
(N=50, IF=5mA, IL=170mADC)
15
10
5
35
30
20
Device Count (N)
35
Typical LED Forward Voltage Drop
(N=50, IF=5mA)
15
10
5
.40
.50
.60
.70
.80
.90
20
15
10
5
0
0
25
0
1.0
0.3
0.4
0.5
0.6
0.7
0.8
11.6
0.9
11.8
12.0
12.2
12.4
On-Resistance (:)
LED Current (mA)
LED Current (mA)
Typical Blocking Voltage Distribution
(N=50)
35
Device Count (N)
30
25
20
15
10
5
0
305
315
325
335
345
355
365
Blocking Voltage (VP)
Typical Turn-On Time
vs.LED Forward Current
(IL=170mADC)
1.4
1.8
0.75
1.4
IF=50mA
1.2
IF=10mA
IF=5mA
1.0
Turn-Off Time (ms)
1.6
1.0
0.8
0.6
0.4
-20
0
20
40
60
Temperature (ºC)
80
100
120
0.65
0.60
0.55
0.45
0
-40
0.70
0.50
0.2
0.8
Typical Turn-Off Time
vs. LED Forward Current
(IL=170mADC)
0.80
1.2
Turn-On Time (ms)
LED Forward Voltage Drop (V)
Typical LED Forward Voltage Drop
vs. Temperature
0
5
10
15
20
25
30
35
40
LED Forward Current (mA)
45
50
0
5
10
15
20
25
30
35
40
45
50
LED Forward Current (mA)
*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.
R04
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INTEGRATED CIRCUITS DIVISION
LCA126
PERFORMANCE DATA (@25ºC Unless Otherwise Noted)*
Typical Turn-On Time
vs. Temperature
(IL=170mADC)
On-Resistance (:)
IF=10mA
0.5
0.4
0.3
0.2
0
20
40
60
80
100
-40
-20
0
40
60
80
Typical IF for Switch Operation
vs. Temperature
(IL=170mADC)
Typical IF for Switch Dropout
vs. Temperature
(IL=170mADC)
2.5
1.0
0.5
-40
-20
0
20
40
60
80
1.5
1.0
0.5
-40
-20
0
Typical Load Current vs. Load Voltage
(IF=5mA)
0
-50
-100
-150
-200
-2.5 -2.0 -1.5 -1.0 -0.5
0
60
80
DC Configuration
100
IF=10mA
IF=5mA
AC/DC Configuration
IF=10mA
100
IF=5mA
-20
0
20
40
60
80
100
120
Temperature (ºC)
Typical Leakage vs. Temperature
Measured across Pins 4&6
0.025
345
0.020
340
335
330
325
0.015
0.010
0.005
320
315
-40
Load Voltage (V)
80
150
-40
350
0.5 1.0 1.5 2.0 2.5
60
50
100
Leakage (PA)
50
40
200
Typical Blocking Voltage
vs. Temperature
Blocking Voltage (VP)
100
40
20
250
Temperature (ºC)
Temperature (ºC)
150
20
0
Maximum Load Current
vs. Temperature
2.0
100
-20
300
0
-40
10
100
Load Current (mA)
LED Current (mA)
1.5
15
Temperature (ºC)
Temperature (ºC)
0
Load Current (mA)
20
Temperature (ºC)
2.0
20
0
0
-20
25
5
0.1
2.5
200
30
0.6
IF=5mA
-40
LED Current (mA)
0.7
Turn-Off Time (ms)
Turn-On Time (ms)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
Typical On-Resistance vs. Temperature
AC/DC Configuration
(IF=5mA, IL=120mADC)
Typical Turn-Off Time
vs. Temperature
(IF=5mA, IL=170mADC)
-20
0
20
40
60
80
100
Temperature (ºC)
0
-40
-20
0
20
40
60
80
100
Temperature (ºC)
Energy Rating Curve
1.2
Load Current (A)
1.0
0.8
0.6
0.4
0.2
0
10Ps 100Ps 1ms 10ms 100ms
1s
10s
100s
Time
*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.
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INTEGRATED CIRCUITS DIVISION
LCA126
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
LCA126
MECHANICAL DIMENSIONS
LCA126
8.382 ± 0.381
(0.330 ± 0.015)
PCB Hole Pattern
7.239 TYP
(0.285 TYP)
2.54 ± 0.127
(0.100 ± 0.005)
6 - 0.800 DIA.
(6 - 0.031 DIA.)
9.144 ± 0.508
(0.360 ± 0.020)
6.350 ± 0.127
(0.250 ± 0.005)
2.540 ± 0.127
(0.100 ± 0.005)
7.620 ± 0.127
(0.300 ± 0.005)
Pin 1
7.620 ± 0.254
(0.300 ± 0.010)
1.651 ± 0.254
(0.065 ± 0.010)
3.302 ± 0.051
(0.130 ± 0.002)
0.254 ± 0.0127
(0.010 ± 0.0005)
6.350 ± 0.127
(0.250 ± 0.005)
5.080 ± 0.127
(0.200 ± 0.005)
4.064 TYP
(0.160 TYP)
Dimensions
mm
(inches)
0.457 ± 0.076
(0.018 ± 0.003)
LCA126S
8.382 ± 0.381
(0.330 ± 0.015)
9.524 ± 0.508
(0.375 ± 0.020)
Pin 1
0.635 ± 0.127
(0.025 ± 0.005)
PCB Land Pattern
2.54 ± 0.127
(0.100 ± 0.005)
2.54
(0.10)
6.350 ± 0.127
(0.250 ± 0.005)
0.457 ± 0.076
(0.018 ± 0.003)
1.651 ± 0.254
(0.065 ± 0.010)
7.620 ± 0.254
(0.300 ± 0.010)
0.254 ± 0.0127
(0.010 ± 0.0005)
8.90
(0.3503)
1.65
(0.0649)
0.65
(0.0255)
3.302 ± 0.051
(0.130 ± 0.002)
4.445 ± 0.254
(0.175 ± 0.010)
Dimensions
mm
(inches)
1.651 ± 0.254
(0.065 ± 0.010)
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INTEGRATED CIRCUITS DIVISION
LCA126
MECHANICAL DIMENSIONS
LCA126STR Tape & Reel
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)
K0 = 4.90
(0.19)
K1 = 3.80
(0.15)
P = 12.00
(0.472)
User Direction of Feed
Embossed
Carrier
Embossment
A0 = 10.10
(0.398)
Dimensions
mm
(inches)
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
For additional information please visit our website at: www.ixysic.com
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.
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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