LCA125L
300V, 170mA Single-Pole
Normally Open Relay
INTEGRATED
CIRCUITS
DIVISION
Parameter
Blocking Voltage
Load Current
Ratings
300
Units
Description
VP
mArms / mADC
LCA125L is a current-limiting, 300V, 170mA, 20,
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 infrared LED.
Features
• Current Limiting
• 3750Vrms Input/Output Isolation
• Low Drive Power Requirements
• Greater Reliability than Electromechanical Relays
• FCC Compatible
• VDE Compatible
• No EMI/RFI Generation
• Small 6-Pin Package
The LCA125L can be used to replace mechanical
relays and offers the superior reliability associated with
semiconductor devices. Because it has no moving
parts, it offers faster, bounce-free switching in a
compact surface mount or thru-hole package.
• Flammability Rating UL 94 V-0
• Surface Mount Tape & Reel Version Available
Approvals
• UL Recognized Component: File # E76270
• CSA Certified Component: Certificate # 1175739
• TUV EN 62368-1: Certificate # B 082667 0008
Applications
• Telecommunications
• Telecom Switching
• Tip/Ring Circuits
• Modem Switching (Laptop, Notebook, Pocket Size)
• Hook Switch
Ordering Information
Part #
LCA125L
Description
6-Pin DIP (50/Tube)
LCA125LS
LCA125LSTR
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
• Industrial Controls
Do Not Use
Switching Characteristics of
Normally Open Devices
Form-A
IF
90%
10%
ILOAD
t
t
off
on
1
DS-LCA125L-R08
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