RFMW Expert Product Pick: Knowles B274MB1S

1. What made you select Knowles’ B274MB1S as a product to feature?

The B274MB1S Microstrip Bandpass Filter from Knowles Precision Devices offers highly repeatable performance without tuning.

2. What are the key features and specifications of the B274MB1S?

Using high-K ceramic materials, the B274MB1S is complete with integrated shielding and is an SMT device designed for use on most RF PWB materials for 26.5-29.5 GHz applications. It is frequency stable over temperatures ranging from -55°C to +125°C and has a characteristic impedance of 50 Ohms.

3. What are common markets and applications of the B274MB1S?

The B274MB1S is designed to meet the 3GPP band. Additionally, the B274MB1S meets the n257 for 5G applications and mmWave.

About Nick John

Nick John, Supplier Business Manager

Nick John is Supplier Business Manager of Passive Divisions at RFMW. With 20 years of industry experience, Nick has worked in sales, account management, and distribution. Passionate about timing solutions, Nick enjoys the fast-paced environment of the electronics industry, aiding customer designs, and enhancing partnerships with leading suppliers.


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RFMW is the premier pure play technical distributor of RF & Microwave semiconductors, connectors, and components for our customers and suppliers by providing component, value add, and design solutions through a focused technical sales and marketing organization.

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