PE-0402HFB221ST

Overview

The PE-0402HFB221ST is a ferrite bead from Pulse Electronics, designed for high-frequency signal line filtering. It features an impedance of 220 Ohms at 100 MHz and operates within a temperature range of -40°C to 105°C. The component supports a maximum DC current of 700 mA and has a maximum DC resistance of 250 mOhm. Packaged in a compact 0402 (1005 Metric) surface-mount case, it utilizes SMD/SMT termination styles for efficient PCB integration.

Feature Summary

• Provides effective attenuation of high-frequency noise on signal lines through resistive dissipation.
• Compact 0402 footprint enables dense circuit board layouts without compromising filtering performance.
• Low DC resistance minimizes voltage drop and power loss in the signal path.

Applications

• High-frequency signal line filtering
• Noise suppression in portable electronic devices
• EMI reduction in data transmission circuits

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status directly with Pulse Electronics or authorized distributors before procurement. Confirm that the 0402 package dimensions align with your PCB footprint requirements. Ensure the 700 mA current rating meets the operational demands of your specific circuit design to prevent saturation or excessive heating during normal use.

Selection Notes

Select this component when space constraints require a 0402 package size while maintaining significant impedance at 100 MHz. The low DCR makes it suitable for sensitive signal lines where minimal insertion loss is critical. Evaluate the thermal environment to ensure operation remains within the specified -40°C to 105°C range for reliable long-term performance in various industrial or consumer applications.

Part Context

This ferrite bead belongs to Pulse Electronics' passive components portfolio, focusing on electromagnetic interference suppression. Ferrite beads are distinct from inductors as they primarily dissipate energy as heat rather than storing it magnetically. This specific model targets modern electronics requiring small form factors and effective high-frequency noise control in compact designs.

Replacement Considerations

Consult official substitution guides for equivalent 0402 ferrite beads with matching 220 Ohm impedance at 100 MHz. Verify that alternative parts maintain similar current ratings and DC resistance specifications to ensure circuit compatibility without redesigning the layout or affecting signal integrity.

FAQ

What is the operating temperature range for the PE-0402HFB221ST?

The component operates reliably within a temperature range of -40°C to 105°C.

How does the DC resistance affect signal integrity?

With a maximum DC resistance of 250 mOhm, the component introduces minimal voltage drop, preserving signal integrity in low-voltage applications.