INTEGRATED CIRCUITS DIVISION
CPC1231N
Single-Pole, Normally Closed
4-Pin SOP OptoMOS® Relay
www.ixysic.com
DS-CPC1231N-R07 1
e3
Pb
Part # Description
CPC1231N 4-Pin SOP (100/tube)
CPC1231NTR 4-Pin SOP (2000/reel)
Parameter Rating Units
Blocking Voltage 350 VP
Load Current 120 mArms / mADC
On-Resistance (max) 30
Applications
Features
Description
Ordering Information
Pin Configuration
• 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
• 0.4mm Distance Through Insulation
(Supplementary Isolation Requirement of
EN60950)
• 1500Vrms Input/Output Isolation
• Low Drive Power Requirements (TTL/CMOS
Compatible)
• No Moving Parts
• High Reliability
• Arc-Free With No Snubbing Circuits
• No EMI/RFI Generation
• Small 4-Pin SOP Package
• Machine Insertable, Wave Solderable
• Tape & Reel Version Available
The CPC1231N is a miniature single-pole, normally
closed (1-Form-B) solid state relay in a 4-pin SOP
package that employs optically coupled MOSFET
technology to provide 1500Vrms of input-to-output
isolation. The optically coupled outputs, which use
patented OptoMOS architecture, are controlled by a
highly efficient GaAIAs infrared LED.
The device is compliant with supplementary isolation
in accordance with EN/IEC 60950-1.
IXYS Integrated Circuits Division’s state of the art
double molded vertical construction packaging
enables the CPC1231N to be one of the world’s
smallest 4-pin relays, which offers board space
savings approaching 20% over the competitor’s
larger 4-pin SOP relay.
Approvals
• UL 1577 Approved Component: File E76270
• CSA Certified Component: Certificate 1172007
• EN 60950 Certified Component:
TUV Certificate B 10 05 49410 006
Switching Characteristics
of Normally Closed Devices
Form-B
I
F
10%
90%
I
LOAD
t
on
t
off
1
23
4
+ Control
– Control
Load
Load