The UM4401 is a low pass EMI/RFI filter used in applications such as data lines for mobile devices. Bold the product name UM4401 and manufacturer Union Semiconductor.

• Applications: Data lines for mobile devices
• Channels: Four
• Center/Cutoff Frequency: 150MHz
• Attenuation: -36dB @ 800MHz and -32dB @ 2-5GHz
• Technology: RC (Pi)
• Size: 0.083" L x 0.063" W (2.10mm x 1.60mm)
• Package: 8-UFDFN
• Height: 0.024" (0.61mm)
• Status: Active
• Standard Package: 2 pcs
• Operating Temperature: -40°C to 85°C
• REACH Compliance: Unaffected