748351124

Overview

The Würth Elektronik 748351124 is a surface-mount band-pass RF filter designed for the 2.4 GHz ISM band. It features a center frequency of 2.45GHz with a bandwidth of 100MHz and an insertion loss of 2.5dB. The component utilizes a multilayer chip architecture housed in a 1008 (2520 Metric) package, measuring 2.50mm x 2.00mm x 1.00mm. It operates within a temperature range compliant with standard industrial specifications and meets RoHS3 requirements.

Feature Summary

• Multilayer chip construction for compact surface-mount integration
• Band-pass filtering optimized for 2.45GHz center frequency
• Low insertion loss characteristics for signal integrity
• RoHS3 compliant manufacturing process

Applications

• Wireless LAN modules operating in the 2.4 GHz ISM band
• Bluetooth low energy (BLE) transceiver front-ends
• Zigbee and other IEEE 802.15.4 based wireless sensor networks
• Industrial, Scientific, and Medical (ISM) radio equipment

Procurement Notes

Verify the specific ordering suffix to ensure the correct tape-and-reel quantity matches production requirements. Confirm that the 1008 package dimensions align with the target PCB footprint. Check current availability status as supply levels may fluctuate. Ensure compliance with REACH regulations if required by the destination market. Validate thermal performance under maximum operating conditions.

Selection Notes

Select this component when a narrow 100MHz bandwidth is required around 2.45GHz. The 2.5dB insertion loss represents a balance between selectivity and signal attenuation. The 1008 package offers a compromise between size and power handling compared to smaller footprints. Consider the self-resonant frequency and impedance matching requirements for the specific circuit design.

Part Context

This part belongs to the WE-BPF series from Würth Elektronik, which focuses on integrated passive components for RF applications. The series provides solutions for EMI/RFI suppression and signal conditioning in wireless communication devices. It replaces older discrete filter designs with a more reliable, space-saving monolithic structure.

Replacement Considerations

The Johanson Technology 2450BP39D0100B001E is listed as a similar replacement, though it is marked as obsolete. Verify electrical compatibility and physical footprint before substitution. No other active substitutes are confirmed in the provided documentation.