INTEGRATED CIRCUITS DIVISION
LBA127L
Dual Single-Pole, Combination
OptoMOS® Relay
www.ixysic.com
DS-LBA127L-R08 1
Part # Description
LBA127L 8-Pin DIP (50/Tube)
LBA127LS 8-Pin Surface Mount (50/Tube)
LBA127LSTR 8-Pin Surface Mount (1,000/Reel)
Parameter Ratings Units
Blocking Voltage 250 VP
Load Current 150 mArms / mADC
On-Resistance (max) 15
Applications
Features
Description
Approvals
Ordering Information
Pin Configuration
• Current Limited 1-Form-A Relay
• 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 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
e3
Pb
Switching Characteristics of
Normally Closed
(Form B) Devices
Form-B
I
F
10%
90%
I
LOAD
ton
toff
Form-A
I
F
I
LOAD
10%
90%
t
on
t
off
Switching Characteristics of
Normally Open
(Form A) Devices
1
2
3
4
+ Control - Normally Closed
– Control - Normally Closed
+ Control - Normally Open
– Control - Normally Open
8
Normally Closed Pole
Normally Open Pole
7
6
5
• UL Recognized Component: File E76270
• CSA Certified Component: Certificate 1175739
• EN/IEC 60950-1 Certified Component:
TUV Certificate B 09 07 49410 004
LBA127L comprises two independent solid state
relays (one current-limited, single-pole, normally
open (1-Form-A) relay and one single-pole, normally
closed (1-Form-B) relay), in an 8-pin package that
employs optically coupled MOSFET technology to
provide 3750Vrms of input to output isolation.
The optically coupled relay outputs, which use the
patented OptoMOS architecture, are controlled by a
highly efficient GaAIAs infrared LED.
LBA127L is designed to provide an ideal solution
where a complementary Form-A/Form-B relay pair is
required in a space-saving single package.