I
NTEGRATED
C
IRCUITS
D
IVISION
LBB120
Dual Single-Pole, Normally Closed
OptoMOS
®
Relay
www.ixysic.com
DS-LBB120-R08
1
Part # Description
LBB120 8-Pin DIP (50/Tube)
LBB120S 8-Pin Surface Mount (50/Tube)
LBB120STR 8-Pin Surface Mount (1000/Reel)
Parameter Ratings Units
Blocking Voltage 250 V
P
Load Current 170 mA
rms
/ mA
DC
On-Resistance (max) 20
Applications
Features
Description
Approvals
Ordering Information
Pin Configuration
• 3750V
rms
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 Version 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
• UL Recognized Component: File E76270
• CSA Certified Component: Certificate 1175739
• EN/IEC 60950-1 Certified Component:
TUV Certificate B 09 07 49410 004
e
3
Pb
Switching Characteristics of
Normally Closed Devices
Form-B
I
F
10%
90%
I
LOAD
t
on
t
off
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
LBB120 is a dual 250V, 170mA, 20 normally closed
(1-Form-B) relay that features low on-resistance
combined with enhanced peak load current handling
capability. Provided in an 8-pin SOIC package, and
employing optically coupled MOSFET technology, it
provides 3750V
rms
of input/output isolation.
Its optically coupled outputs, which use the patented
OptoMOS architecture, are controlled by a highly
efficient GaAIAs infrared LED.
Dual single-pole OptoMOS relays provide a more
compact design solution than discrete single-pole
relays in a variety of applications by incorporating
both relays in a single 8-pin package.