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www.clare.com
LCA125
DS-LCA125-R8
LCA125 is a 300V, 170mA, 16Ω 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
•3750VRMS Input/Output Isolation
•FCC Compatible
•VDE Compatible
•No EMI/RFI Generation
•Machine Insertable, Wave Solderable
•Surface Mount and Tape & Reel
V ersions A vailable
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 RON
16 Ω
Pin Configuration
CONTROL
LOAD
10ms
10% 10%
90%
+
TON TOFF
+
+
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)
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Parameter Min Typ Max Units
Input Power Dissipation - - 1501mW
Input Control Current - - 50 mA
Peak (10ms) - - 1 A
Reverse Input Voltage - - 5 V
Total Power Dissipation - - 8002mW
Isolation Voltage
Input to Output 3750 - - VRMS
Operational Temperature -40 - +85 °C
Storage Temperature -40 - +125 °C
Soldering Temperature
DIP Package - - +260 °C
Surface Mount Package - - +220 °C
(10 Seconds Max.)
1Derate Linearly 1.33 mw/˚C
2Derate Linearly 6.67 mw/˚C
Electrical Characteristics
Parameter Conditions Symbol Min Typ Max Units
Output Characteristics @ 25°C
Load Voltage (Peak) - VL- - 300 V
Load Current (Continuous)
AC/DC Configuration - IL- - 170 mA
DC Configuration - IL- - 300 mA
Peak Load Current 10ms IL- - 400 mA
On-Resistance
AC/DC Configuration IL=170mA RON -1016 Ω
DC Configuration IL=300mA RON -45 Ω
Off-State Leakage Current VL=300V ILEAK --1 µA
Switching Speeds
Turn-On IF=5mA, VL=10V TON --5 ms
Turn-Off IF=5mA, vL=10V TOFF --5 ms
Output Capacitance 50V; f=1MHz COUT - 50 - -pF
Input Characteristics @ 25°C
Input Control Current IL=170mA IF5-50mA
Input Dropout Current - - 0.4 0.7 - mA
Input Voltage Drop IF=5mA VF0.9 1.2 1.4 V
Reverse Input Voltage - VR--5 V
Reverse Input Current VR=5V IR- - 10 µA
Input to Output Capacitance - CI/O -3- pF
Input to Output Isolation - VI/O 3750 - - VRMS
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)
IF = 5mADC
35
30
25
20
15
10
5
01.17 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; IF = 5mADC)
30
25
20
15
10
5
08.25 8.75 9.25 9.75 10.25
On-Resistance (Ω)
Device Count (N)
LCA125
Typical Blocking Voltage Distribution
(N=50 Ambient Temperature = 25°C)
25
20
15
10
5
0302.5 311.5 320.5 338.5 338.5 347.5
Blocking Voltage (V)
Device Count (N)
LCA125
Typical IF for Switch Operation
(N=50 Ambient Temperature = 25°C)
(Load Current = 170mADC)
LED Current (mA)
Device Count (N)
25
20
15
10
5
00.54 0.78 0.900.420.30 0.66
LCA125
Typical IF for Switch Dropout
(N=50 Ambient Temperature = 25°C)
(Load Current = 170mADC
25
20
15
10
5
00.30 0.54 0.780.18 0.42 0.66
LED Current (mA)
Device Count (N)
)
LCA125
Typical Turn-On Time
(N=50 Ambient Temperature = 25°C)
(Load Current = 170mADC; IF = 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; IF = 5mADC)
0.10 0.18 0.260.06 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 120100
20mA
10mA
5mA
LCA125
Typical Leakage vs. Temperature
(Measured across Pins 4 & 6)
Temperature (°C)
Leakage (µA)
-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 (VRMS)
-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
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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 IF 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)
05 1015202530354045
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
050
LCA125
Typical Turn-On vs. LED Forward Current
(Load Current = 170mADC)
LED Forward Current (mA)
Turn-On (ms)
05 1015202530354045
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
050
LCA125
Typical On-Resistance vs. Temperature
(Load Current = 170mADC; IF = 5mADC)
Temperature (°C)
On-Resistance (Ω)
-40
60.000
50.000
40.000
30.000
20.000
10.000
0-20 0 20 40 60 80 100
LCA125
Typical IF 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)
IF = 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
010µs 1ms 100ms 10s100µs 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 120100
50mA
30mA
20mA
10mA
5mA
LCA125
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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)
16
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)
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 sup-
port 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-LCA125-R8.0
©Copyright 2002, Clare, Inc.
All rights reserved. Printed in USA.
7/10/02
For additional information please visit our website at: www.clare.com