LCA120
Single-Pole, Normally Open
OptoMOS® Relay
INTEGRATED
CIRCUITS
DIVISION
Parameter
Blocking Voltage
Load Current
Ratings
250
Units
Description
VP
mArms & mADC
The LCA120 is a single-pole, normally open
(1-Form-A) solid state relay that uses optically coupled
MOSFET technology to provide 3750Vrms of input to
output isolation.
170
On-Resistance (max)
20
Its optically coupled outputs, which use the patented
OptoMOS architecture, are controlled by a highly
efficient GaAIAs infrared LED.
Features
• 3750Vrms Input/Output Isolation
• Low Drive Power Requirements (TTL/CMOS
Compatible)
• High Reliability
• Arc-Free With No Snubbing Circuits
• No EMI/RFI Generation
• Small 6-Pin Package
• Machine Insertable, Wave Solderable
• Surface Mount Tape & Reel Version Available
• V-0 Flammability Classification Rating
LCA120 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.
Approvals
• UL Recognized Component: File E76270
• CSA Certified Component: Certificate 1175739
• EN/IEC 60950-1 Certified Component:
TUV Certificate B 09 07 49410 004
Applications
• Telecommunications
• Telecom Switching
• Tip/Ring Circuits
• Modem Switching (Laptop, Notebook,
Pocket Size)
• Hook Switch
Ordering Information
Part #
LCA120
Description
6-Pin DIP (50/Tube)
LCA120S
LCA120STR
6-Pin Surface Mount (50/Tube)
6-Pin Surface Mount (1,000/Reel)
• Dial Pulsing
• Ground Start
• Ringing Injection
• Instrumentation
Pin Configuration
AC/DC Configuration
• Multiplexers
1
2
3
6
5
4
• Data Acquisition
• Electronic Switching
• I/O Subsystems
• Meters (Watt-Hour, Water, Gas)
• Medical Equipment—Patient/Equipment Isolation
• Security
+ Control
– Control
Load
Do Not Use
Load
Do Not Use
DC Only Configuration
1
2
3
6
5
4
+ Control
– Control
+ Load
– Load
• Aerospace
• Industrial Controls
Do Not Use
Switching Characteristics of
Normally Open Devices
Form-A
IF
90%
10%
ILOAD
t
t
off
on
Pb
e3
DS-LCA120-R11
1
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