1
www.clare.com
LAA125
DS-LAA125-R4
LAA125 is a 350V, 170mA, 16
2-Form-A relay. It com-
bines enhanced peak load current capability with low on-
resistance. Current limiting version is available ("L" suffix,
see specification for variations in performance).
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 8 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
DUAL POLE OptoMOS Relays
Ordering Information
Part #
Description
LAA125
8 Pin DIP (50/Tube)
LAA125P
8 Pin Flat Pack (50/Tube)
LAA125PTR
8 Pin Flat Pack (1,000/Reel)
LAA125S
8 Pin Surface Mount (50/Tube)
LAA125STR
8 Pin Surface Mount (1,000/Reel)
LAA125
Units
Load Voltage
350
V
Load Current
170
mA
Max R
ON
16
CONTROL
LOAD
10ms
10%
10%
90%
+
T
ON
T
OFF
+
+
Switching Characteristics of
Normally Open (Form A) Devices
1
2
3
4
8
7
6
5
+ Control - Switch #1
Control - Switch #1
+ Control - Switch #2
Control - Switch #2
Load - Switch #1
Load - Switch #1
Load - Switch #2
Load - Switch #2
AC/DC Configuration
LAA125 Pinout
Pinout Configuration
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LAA125
R4
Electrical Characteristics
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 opera-
tional 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
CONDITIONS
SYMBOL
MIN
TYP
MAX
UNITS
Output Characteristics @ 25C
Load Voltage (Peak)
-
V
L
-
-
350
V
Load Current (Continuous)
-
I
L
-
-
170
mA
Peak Load Current
10ms max
I
LPK
-
-
400
mA
On-Resistance
AC/DC Configuration
I
L
=Load Current
R
ON
-
-
16
Off-State Leakage Current
V
L
=350V
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 Characteristics @ 25C
Input to Output Capacitance
-
C
I/O
-
3
-
pF
Input to Output Isolation
-
V
I/O
3750
-
-
V
RMS
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
Capacitance
Input to Output
-
3
-
pF
Isolation Voltage
Input to Output
3750
-
-
V
RMS
Operational Temperature
-40
-
+85
C
Storage Temperature
-40
-
+125
C
Soldering Temperature
DIP Package
-
-
+260
C
Flatpack/Surface Mount
Package
-
-
+220
C
(10 Seconds Max.)
1
Derate Linearly 1.33 mw/C
2
Derate Linearly 6.67 mw/C
LAA125
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R4
3
Performance Data*
LAA125
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 Drop (V)
Device Count (N)
LAA125
Typical Blocking Voltage Distribution
(N=50 Ambient Temperature = 25
C)
#
#
#
"
"
"
"!
Blocking Voltage (V)
Device Count (N)
!'
""
LAA125
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
LAA125
Typical I
F
for Switch Dropout
(N=50 Ambient Temperature = 25
C)
(Load Current = 170mADC
25
20
15
10
5
0
0.30
0.40
0.78
0.18
0.35
0.45
LED Current (mA)
Device Count (N)
)
LAA125
Typical Turn-On Time
(N=50 Ambient Temperature = 25
C)
(Load Current = 120mADC; I
F
= 10mADC)
1.6
1.7
1.8
1.9
2.0
2.1
2.2
Turn-On (ms)
Device Count (N)
25
20
15
10
5
0
LAA125
Typical Turn-Off Time
(N=50 Ambient Temperature = 25
C)
(Load Current = 120mADC; I
F
= 10mADC)
0.30
0.50
0.70
0.20
0.40
0.60
0.80
Turn-Off (ms)
Device Count (N)
25
20
15
10
5
0
LAA125
Typical Load Current vs. Temperature
Temperature (
C)
Load Current (mA)
200
175
150
125
100
75
0
-40 -20
0
20
40
60
80
120
100
5mA
10mA
5mA
10mA
Single Pole
Dual Pole
LAA125
Typical Leakage vs. Temperature
(Measured across Pins 5 & 6 or 7 & 8)
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
LAA125
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
LAA125
Typical Turn-On vs. Temperature
(Load Current = 80mADC)
Temperature (
C)
5mA
10mA
Turn-On (ms)
-40
3.0
2.5
2.0
1.5
1.0
0.5
0
-20
0
20
40
60
80
100
LAA125
Typical Turn-Off vs. Temperature
(Load Current = 120mADC)
Temperature (
C)
Turn-Off (ms)
-40
0.60
0.50
0.40
0.30
0.20
0.10
0
-20
0
20
40
60
80
100
5mA
LAA125
Typical On-Resistance Distribution
(N=50 Ambient Temperature = 25
C)
(Load Current = 170mADC)
35
30
25
20
15
10
5
0
12.64
12.92
13.2
12.5
12.78
13.06
On-Resistance (
)
Device Count (N)
12.36
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4
LAA125
R4
Performance Data*
LAA125
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
10mA
5mA
LAA125
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
LAA125
Typical Turn-Off vs. LED Forward Current
(Load Current = 120mADC)
LED Forward Current (mA)
Turn-Off (ms)
0
10 15 20 25 30 35 40 45
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0
50 55
LAA125
Typical On-Resistance vs. Temperature
(Load Current = max rated over temp)
Temperature (
C)
On-Resistance (
)
-40
20
18
16
14
12
10
0
-20
0
20
40
60
80
100
Single Pole
Dual Pole
5mA
5mA
5mA
10mA
10mA
Instantaneous
LAA125
Typical I
F
for Switch Operation
vs. Temperature
(Load Current = max rated over temp)
Temperature (
C)
LED Current (mA)
-40
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
-20
0
20
40
60
80
100
LAA125
Typical I
F
for Switch Dropout
vs. Temperature
(Load Current = max rated over temp)
Temperature (
C)
LED Current (mA)
-40
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-20
0
20
40
60
80
100
LAA125
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 -1.25 -0.625
0
0.625 1.25 1.875 3.0
LAA125
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
LAA125
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5
R4
Dimensions
mm
(Inches)
MECHANICAL DIMENSIONS
PC Board Pattern
(Top View)
6.350
.127
(.250
.005)
2.540
.127
(.100
.005)
7.620
.127
(.300
.005)
7.620
.127
(.300
.005)
8-.800 DIA.
(8-.031 DIA.)
7.239 TYP.
(.285)
3.302
(.130)
7.620
.254
(.300
.010)
9.144 TYP.
(.360)
6.350
.127
(.250
.005)
9.652
.381
(.380
.015)
2.540
.127
(.100
.005)
9.144
.508
(.360
.020)
.457
.076
(.018
.003)
8.077
.127
(.318
.005 )
8 Pin DIP Through Hole (Standard)
8 Pin Flatpack ("P" Suffix)
7.620
.254
(.300
.010)
2.159 TYP.
(.085)
2.286 MAX.
(.090)
9.398
.127
(.370
.005)
6.350
.127
(.250
.005)
9.652
.381
(.380
.015)
2.540
.127
(.100
.005)
8.077
.127
(.318
.005)
.457
.076
(.018
.003)
.203
(.008)
.635
.127
(.025)
PC Board Pattern
(Top View)
2.540
.127
(.100
.005)
8.763
.127
(.345
.005)
1.193
(.047)
.787
(.031)
4.445
.127
(.175
.005)
3.302
(.130)
7.620
.254
(.300
.010)
6.350
.127
(.250
.005)
8.077
.127
(.318
.005)
2.540
.127
(.100
.005)
9.525
.254
(.375
.010)
.457
.076
(.018
.003)
.254 TYP.
(.010)
.635 TYP.
(.025)
8 Pin DIP Surface Mount ("S" Suffix)
9.652
.381
(.380
.015)
PC Board Pattern
(Top View)
2.540
.127
(.100
.005)
8.305
.127
(.327
.005)
1.905
.127
(.075
.005)
1.498
.127
(.059
.005)
Tape and Reel Packaging for 8 Pin Surface Mount Package
7.493
.102
(.295
.004)
12.090
(.476)
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)
10.300
(.405)
Embossment
Embossed Carrier
Top Cover
Tape Thickness
.102 MAX.
(.004)
10.300
.102
(.405
.004)
1.549
.102
(.061
.004)
330.2 DIA.
(13.00)
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