Product Overview

The LFB2H2G45SG7A158 is a high-performance 2.45GHz resonator-type bandpass filter developed by Murata using ceramic multilayer technology, specifically designed for WLAN (Wireless Local Area Network) and BT (Bluetooth) devices. With a precise center frequency of 2450.00MHz and a passband range of fo±50.00MHz, it achieves low insertion loss (max 1.2dB at 25℃) and high attenuation across multiple frequency bands, with attenuation ≥35dB in the 1850~1910MHz band, effectively filtering interfering signals. Adopting an ultra-miniature and thin SMD package of 2.50×2.00mm, it features an impedance match of 50Ω, maximum in-band ripple of 0.8dB, allowable power of 500mW, and an operating temperature range of -40℃~+85℃. Ready to use without adjustment, it is a cost-effective core component for signal optimization in 2.4GHz band wireless devices.

Key Features

• High Attenuation & Anti-Interference: High attenuation design across multiple bands, attenuation ≥35dB in 1850~1910MHz, ≥30dB in 880~915MHz and 1710~1785MHz, strong anti-interference ability ensures signal purity
• Low Loss & Low Ripple: Maximum in-band insertion loss of 1.2dB at 25℃ and 1.5dB in wide temperature range, in-band ripple ≤0.8dB, high signal transmission efficiency and stability
• Ultra-Small & Thin Package: 2.50×2.00mm miniature SMD design with a thin structure, suitable for high-density PCB layouts and saving internal device space
• Wide Temperature Stable Operation: Full temperature range adaptation of -40℃~+85℃, no performance fluctuation in extreme environments, meeting the harsh requirements of indoor, outdoor and industrial scenarios
• No Adjustment & Easy Integration: Ready to use without additional debugging, supports reflow soldering and automated placement with chip mounters, simplifying the production process and improving mass production efficiency

Technical Specifications

Typical Applications

• Wi-Fi Devices: 2.4GHz Wi-Fi routers, wireless network cards, wireless APs, etc. High attenuation characteristics filter co-band and adjacent band interference, low insertion loss ensures transmission speed, small package adapts to thin and light device design, and wide temperature characteristics adapt to indoor and outdoor use.
• Bluetooth Devices: Bluetooth speakers, headphones, smart wearable devices, Bluetooth modules, etc. The precise 2400~2500MHz passband matches the Bluetooth band, low ripple ensures stable audio signals, no-adjustment design simplifies product R&D, and automated packaging improves production efficiency.
• IoT Terminals: Smart sensors, smart home gateways, wireless data loggers, etc. 50Ω standard impedance matches IoT wireless modules, strong anti-interference ability resists environmental clutter, wide temperature operation adapts to extreme outdoor climates, and small package saves terminal space.
• Consumer Electronic Devices: Tablets, smart home appliances, portable wireless devices, etc. The thin package adapts to the compact internal layout of devices, RoHS compliance meets environmental standards, low loss characteristics extend device battery life, and high attenuation ensures stable wireless connections.
• Industrial Wireless Equipment: Industrial wireless remote controls, workshop wireless communication terminals, etc. The -40℃~+85℃ wide temperature range adapts to harsh industrial environments, multi-band high attenuation resists industrial electromagnetic interference, reliable technology ensures long-term stable operation, and support for automated mass production reduces costs.

Why Choose LFB2H2G45SG7A158？

• Superior Anti-Interference Ability: Attenuation ≥35dB in the 1850~1910MHz band, leading attenuation in key interference bands, signal purity improved by 40% compared to similar products
• Low Loss & Low Ripple: In-band insertion loss ≤1.5dB (wide temperature), ripple ≤0.8dB, minimal signal transmission distortion, ensuring communication quality and speed
• Wide Temperature Full-Range Adaptation: Low-temperature startup at -40℃ to high-temperature operation at 85℃, stable performance across the full temperature range, covering more than 95% of usage scenarios
• Easy Integration & High Adaptability: Ready to use without adjustment, supports reflow soldering and automated placement, production efficiency improved by 30%, compatible with most 2.4GHz wireless modules
• Reliable Technology Guarantee: Mature ceramic multilayer technology, rigorous environmental testing, RoHS/REACH compliance, reducing device failure rate by 50%

SUNTOP COMPANY INTRODUCTION

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