UM6401

Overview

The UM6401 is a six-channel low-pass RC EMI filter array manufactured by Union Semiconductor International Limited. It integrates transient voltage suppression (TVS) diodes to provide electrostatic discharge protection alongside signal filtering. The component operates within a temperature range of -40°C to +85°C and features a cutoff frequency of 150MHz with a capacitance of 10pF. Designed for surface mount applications, it utilizes an 8-UFDFN package measuring 0.118 inches in length and 0.063 inches in width. The device supports a rated voltage of 5V and delivers high suppression effects in the 800MHz frequency band.

Feature Summary

• Integrates six-channel low-pass RC filtering with TVS diodes for combined EMI/RFI suppression and ESD protection
• Provides high attenuation performance in the 800MHz frequency band
• Compact surface-mount design suitable for space-constrained mobile device data lines

Applications

• Data lines for mobile devices
• EMI/RFI suppression in portable electronics
• ESD protection circuits for high-speed interfaces

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to ensure correct pinout and tolerance specifications. Confirm that the 8-UFDFN package dimensions align with your PCB footprint requirements. Ensure the operating temperature range meets your environmental standards. Cross-reference the rated voltage and capacitance values with your circuit design constraints before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring simultaneous EMI filtering and ESD protection for multiple data lines. The integrated TVS functionality reduces bill-of-materials count compared to discrete solutions. Consider the 150MHz cutoff frequency and 10pF capacitance to ensure compatibility with your signal integrity requirements. The compact UFDFN-8 package is ideal for dense layouts in modern mobile hardware designs.

Part Context

This component belongs to the family of integrated EMI/RFI filters produced by Union Semiconductor International Limited. These devices are engineered to address electromagnetic interference challenges in consumer electronics. The UM6401 specifically targets applications where space is limited and robust protection against both noise and static discharge is required for data transmission lines.

Replacement Considerations

Consult official substitution guides from Union Semiconductor or authorized distributors for verified equivalent part numbers. Ensure any replacement maintains the same channel count, package type, and electrical characteristics such as cutoff frequency and clamping voltage.