RG1783-4

Overview

The Electrocube RG1783-4 is a single-phase RC EMI filter network designed for printed circuit board mounting. It functions as a first-order low-pass filter to suppress electrical noise and arcing in relay and switch contacts. The component integrates a resistor with a nominal value of 68 Ohms and a capacitor rated at 0.25 µF ±20%. It supports a maximum voltage of 900V and operates within a temperature range of -55°C to +125°C. The unit utilizes radial leads for through-hole installation.

Feature Summary

• Suppresses arcing and minimizes noise generation in relay and switch contacts
• Provides electromagnetic interference (EMI) filtering via integrated RC network
• Designed for compact side-by-side printed circuit board mounting

Applications

• Industrial control panels requiring contact protection
• Relay circuits needing arc suppression
• Switching applications susceptible to electrical noise

Procurement Notes

Verify the specific suffix designation against official Electrocube documentation to confirm exact resistance, capacitance, and voltage ratings. Ensure the package type matches the required PCB layout. Confirm compliance with relevant industrial standards before integration into safety-critical systems.

Selection Notes

Select this component when a single-phase RC network is required for high-voltage contact protection. Consider the 68 Ohm resistance and 0.25 µF capacitance values for appropriate time constant requirements. Evaluate the 900V rating against peak circuit voltages to ensure adequate margin.

Part Context

Electrocube manufactures rugged, precision-engineered RC networks for demanding industrial environments. The RG1783 series represents their single-phase offerings, designed to prevent or substantially minimize arcing and noise generation in switching applications.

Replacement Considerations

Cross-reference part numbers such as RG1988-4 from AAR Electronics for potential equivalents. Verify that substitute components match the original resistance, capacitance, voltage rating, and physical dimensions before substitution.