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CPC1035NTR

CPC1035NTR

IXYS Integrated Circuits Division
Solid State Photo-Coupled Relay (Photorelay) SPST-NO (1 Form A) 4-SOP (0.150", 3.81mm)
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Overview

The CPC1035NTR is a miniature, single-pole, normally open (1-Form-A) solid-state relay that utilizes IXYS Integrated Circuits Division's OptoMOS architecture. It provides 3750Vrms of input-to-output isolation by coupling an infrared LED with a high-voltage integrated circuit and efficient MOSFET switches. This device is designed to replace mechanical relays in applications requiring high reliability and silent operation within a compact 4-pin SOP package.

Why Choose This Part

The component offers a significant reduction in board space compared to electromagnetic relays while providing a long operational life because it lacks moving parts. With a maximum load voltage of 350V and a low input trigger current of 1.2VDC, it is highly efficient for direct drive from microcontrollers. Its 3750Vrms isolation ensures robust protection between sensitive control logic and high-voltage AC or DC loads.

Applications

Security System Sensors
Ideal for silent switching of alarm loops and motion sensor outputs where mechanical clicking is undesirable.
Telecommunications Switching
Used for hook switch functions and ringer injection due to its 350V load rating and low drive current.
Industrial Instrumentation
Suitable for multiplexing low-level signals and controlling small solenoid valves or indicators.
Meter Reading Systems
Acts as a low-power pulse output for utility meters to communicate consumption data to external loggers.

Key Specifications

Circuit SPST-NO (1 Form A)
Relay Type Photo-Coupled Relay (Photorelay)
Output Type AC, DC
Load Current 100 mA
Mounting Type Surface Mount
Package / Case 4-SOP (0.150", 3.81mm)
Voltage - Load 0 V ~ 350 V
Approval Agency CSA, TUV, UL
Voltage - Input 1.2VDC
Termination Style Gull Wing
Operating Temperature -40degC ~ 85degC
Supplier Device Package 4-SOP
On-State Resistance (Max) 35 Ohms

Getting Started

To use the CPC1035NTR, treat the input side like a standard LED by using a series resistor to limit current based on the 1.2VDC forward voltage. Ensure the load does not exceed 100mA and provide adequate PCB clearance for high-voltage traces to maintain the benefit of the 3750Vrms isolation. No external snubbers are typically required for resistive loads, but inductive loads may require flyback protection.