BPF1005LRQKR3750L

Overview

The BPF1005LRQKR3750L is a bandpass filter manufactured by Pulse Electronics, designed for signal conditioning applications. It operates within a frequency range of 3.8 GHz to 4.2 GHz and features a nominal center frequency of 3.75 GHz. The component utilizes a 50 Ohm impedance and is housed in a compact 0402 (1005 metric) surface-mount package. It supports SMD/SMT termination types and is rated for operation between -40°C and +85°C.

Feature Summary

• Provides bandpass filtering capabilities for RF signal conditioning
• Designed for high-frequency operations around 3.75 GHz
• Utilizes a compact 0402 surface-mount footprint for space-constrained designs

Applications

• RF signal conditioning circuits
• EMI/RFI suppression systems
• Wireless communication modules operating in the 3.8-4.2 GHz range

Procurement Notes

Verify the specific suffix 'QK' against official Pulse Electronics documentation to confirm pinout and electrical characteristics, as suffixes often denote distinct packaging or performance variations. Ensure compatibility with standard 0402 reflow soldering profiles. Cross-reference with authorized distributors for current availability status, as supply chain constraints may affect lead times for this specific variant.

Selection Notes

Select this component when a 0402 form factor is required for bandpass filtering near 3.75 GHz. Confirm that the 50 Ohm impedance matches the system design requirements. Evaluate thermal performance within the -40°C to +85°C operational range to ensure reliability under intended environmental conditions. Compare against similar models like BPF1005LRPPR3750L if different packaging options are needed.

Part Context

This part belongs to Pulse Electronics' BPF series of bandpass filters, which are engineered for EMI/RFI suppression and signal integrity in high-frequency applications. The series offers various form factors, including 0402 and 0603 packages, to accommodate different PCB layout constraints. These filters are commonly integrated into wireless infrastructure and consumer electronics requiring precise frequency selection.

Replacement Considerations

The BPF1005LRPPR3750L is a related model within the same product family, sharing similar electrical specifications but potentially differing in packaging or suffix codes. Verify interchangeability by comparing datasheet parameters such as insertion loss and return loss. Other manufacturers may offer equivalent 0402 bandpass filters, but direct substitution requires rigorous validation of impedance and frequency response curves.