KPZ1608SHR121ATDH5

Chip Ferrite Bead Overview

The TDK KPZ1608SHR121ATDH5 is a single-line ferrite bead chip component from the KPZ-HR series, designed for power line applications. It features a 0603 (1608 metric) surface-mount package with dimensions of 1.60mm length, 0.80mm width, and a maximum height of 0.75mm. The device provides an impedance of 120 Ohms at 100 MHz and supports a maximum DC current of 2A. Its maximum DC resistance is 45 milliohms. The component operates within a temperature range of -55°C to 150°C and holds AEC-Q200 qualification.

Chip Ferrite Bead Feature Summary

• Soft terminal construction to reduce mechanical stress on the PCB during soldering
• AEC-Q200 automotive grade qualification for reliability in harsh environments
• High-temperature operation capability up to 150°C
• Shielded design to minimize electromagnetic interference

Chip Ferrite Bead Applications

• Automotive electronic circuits requiring EMI suppression
• Power supply lines in mobile devices
• Signal integrity protection in high-speed digital interfaces

Chip Ferrite Bead Procurement Notes

Verify the specific suffix 'H5' against the manufacturer's latest datasheet to confirm packaging and tape-and-reel specifications. Ensure the order quantity aligns with standard factory pack sizes, typically 4,000 units per reel. Confirm RoHS3 compliance status if required by regional regulations. Cross-reference the DigiKey part number 445-175018-2-ND for accurate distributor identification and availability checks.

Chip Ferrite Bead Selection Notes

Select this component when a 0603 footprint is constrained but higher current handling than standard signal beads is needed. The 2A rating distinguishes it from lower-current alternatives like the MMZ series. The soft terminal feature makes it suitable for boards susceptible to cracking during reflow. Verify that the 120 Ohm impedance at 100 MHz matches the target noise frequency spectrum for the specific power rail being filtered.

Chip Ferrite Bead Part Context

This part belongs to the KPZ-HR series, which focuses on high-reliability applications in the automotive sector. Unlike the general-purpose MPZ series, the KPZ series emphasizes robustness under thermal cycling and mechanical shock. It shares the 1608 metric size with many other TDK ferrites but offers distinct electrical characteristics tailored for power line filtering rather than pure signal line termination.

Chip Ferrite Bead Replacement Considerations

Publicly confirmed substitutes include the KPZ1608SHR300ATDH5 for higher impedance needs or the MPZ1608S300ATDH5 for similar form factors with different current ratings. Direct pin-to-pin replacements must match the 120 Ohm impedance and 2A current rating to maintain circuit performance.