www.clare.com
DS-LBB127-R04 1
LBB127
Dual Single-Pole,
Normally Closed OptoMOS® Relay
RoHS
2002/95/EC e3
Pb
Parameter Ratings Units
Blocking Voltage 250 VP
Load Current 200 mA
Max RON 10
Description
Pin Configuration
Switching Characteristics of
Normally Closed (Form B) Devices
Form-B
I
F
10%
90%
I
LOAD
t
on
t
off
Clare's LBB127 is a 250V, 200mA, 10 dual normally
closed (1-Form-B) Solid State Relay that comprises
two independently controlled, optically coupled
MOSFET switches.
The MOSFET switches and photovoltaic die use
Clare’s patented OptoMOS® architecture to provide
3750 Vrms of input-to-output isolation. The optically
coupled output is controlled by a highly efficient
GaAIAs infrared LED.
This dual single-pole OptoMOS relay provides a more
compact design solution than discrete single-pole
relays in a variety of applications, and saves board
space by incorporating both switches in a single 8-pin
package.
Applications
Features
• 3750Vrms Input/Output Isolation
• Low Drive Power Requirements (TTL/CMOS
Compatible)
• High Reliability
• Arc-Free With No Snubbing Circuits
• FCC Compatible
• VDE Compatible
• No EMI/RFI Generation
• Small 8-Pin Package
• Machine Insertable, Wave Solderable
• Surface Mount Tape & Reel Versions Available
• Telecommunications
• Telecom Switching
• Tip/Ring Circuits
• Modem Switching (Laptop, Notebook, Pocket Size)
• Hook Switch
• Dial Pulsing
• Ground Start
• Ringing Injection
• Instrumentation
• Multiplexers
• Data Acquisition
• Electronic Switching
• I/O Subsystems
• Meters (Watt-Hour, Water, Gas)
• Medical Equipment-Patient/Equipment Isolation
• Security
• Aerospace
• Industrial Controls
Part # Description
LBB127 8-Pin DIP (50/Tube)
LBB127S 8-Pin Surface Mount (50/Tube)
LBB127STR 8-Pin Surface Mount (1,000/Reel)
LBB127P 8-Pin Flatpack (50/Tube)
LBB127PTR 8-Pin Flatpack (1,000/Reel)
Approvals
Ordering Information
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
• UL Recognized Component: File E76270
• CSA Certified Component: Certificate 1175739
• EN/IEC 60950-1 Certified Component:
TUV Certificate B 09 07 49410 004