4420P-601-250/201

Overview

The Bourns Inc. 4420P-601-250/201 is a Surface Mount Device (SMD) EMI filter circuit belonging to the 601 Series. It utilizes an RC T-network topology configured as a first-order low-pass filter. The component integrates eight independent filtering channels within a single package. Key electrical parameters include a resistance value of 25 Ohms and a capacitance value of 200 pF per channel. The device features a -3 dB cutoff frequency at 21 MHz. It operates within a temperature range of -55°C to +125°C and is housed in a 20-SOIC package with a width of 7.50 mm.

Feature Summary

• Integrates eight independent RC T-type low-pass filter channels for multi-line signal conditioning.
• Provides effective attenuation of high-frequency electromagnetic interference signals.
• Designed for surface mount assembly to support automated manufacturing processes.
• Operates reliably across a wide industrial temperature range.

Applications

• Attenuating noise on multiple data lines in digital communication interfaces.
• EMI suppression in high-speed signal transmission paths.
• Signal integrity improvement in electronic circuits requiring multi-channel filtering.

Procurement Notes

This component is officially designated as End-of-Life (EOL). A discontinuance notification was issued by the manufacturer, indicating that production has ceased. Availability is limited to existing stock or surplus markets. Verification of current supply status and alternative sourcing options is required before procurement planning. Ensure compatibility with replacement components if this part is no longer obtainable through standard distribution channels.

Selection Notes

Select this component when designing circuits requiring simultaneous filtering of eight parallel signal lines. The 25 Ohm resistance and 200 pF capacitance values define the specific frequency response characteristics. Consider the 20-SOIC package dimensions for PCB layout constraints. Verify that the operating temperature requirements fall within the specified -55°C to +125°C range. Due to the EOL status, evaluate long-term supply chain stability and potential redesign needs.

Part Context

The 4420P-601-250/201 belongs to the Bourns 601 Series of RC Network T-Filters. This series focuses on providing compact, multi-channel EMI suppression solutions for surface mount applications. The product line typically offers various resistance and capacitance combinations to suit different frequency cutoff requirements. These components are engineered to replace discrete resistor and capacitor networks, saving board space and simplifying assembly.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Given the End-of-Life status, engineers must identify equivalent components based on matching electrical specifications (8-channel, 25 Ohm, 200 pF, SOIC-20) and mechanical footprint. Consult official manufacturer substitution guides or authorized distributors for validated alternatives.

FAQ

What is the cutoff frequency of the 4420P-601-250/201?

The component has a -3 dB cutoff frequency at 21 MHz.

How many filter channels does this component contain?

It contains eight independent RC T-network filter channels.

Is this component currently in production?

No, it is classified as End-of-Life (EOL) with a discontinuance notification issued.