LCB120
250V, 170mA Single-Pole,
Normally Closed Relay
INTEGRATED
CIRCUITS
DIVISION
Description
Parameter
Blocking Voltage
Load Current
Ratings
250
Units
VP
mArms / mADC
The LCB120 is a single-pole, normally closed
(1-Form-B) 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
• 3750Vrms Input/Output Isolation
• Low Drive Power Requirements
• Surface Mount Tape & Reel Version Available
• FCC Compatible
• VDE Compatible
The LCB120 has low on-resistance, and is well suited
for most applications requiring a normally closed relay.
• No EMI/RFI Generation
• Small 6-Pin Package
• Flammability Rating UL 94 V-0
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
Ordering Information
Part #
LCB120
Description
6-Pin DIP (50/Tube)
• Modem Switching (Laptop, Notebook, Pocket Size)
• Hook Switch
• Dial Pulsing
LCB120S
LCB120STR
6-Pin Surface Mount (50/Tube)
6-Pin Surface Mount (1000/Reel)
• Ground Start
• Ringing Injection
• Instrumentation
• Multiplexers
• Data Acquisition
• Electronic Switching
• I/O Subsystems
• Meters (Watt-Hour, Water, Gas)
• Medical Equipment-Patient/Equipment Isolation
• Security
Pin Configuration
AC/DC Configuration
1
2
3
6
5
4
+ Control
– Control
Load
Do Not Use
Load
Do Not Use
DC Only Configuration
1
2
3
6
5
4
• Industrial Controls
+ Control
– Control
+ Load
– Load
Do Not Use
Switching Characteristics
of Normally Closed Devices
Form-B
IF
ILOAD
90%
t
10%
t
off
on
1
DS-LCB120-R11
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