BGS8M4UK/SZ RF Amplifier IC Equivalent & Substitute Parts

Part Overview

The BGS8M4UK/SZ is an RF amplifier integrated circuit manufactured by NXP USA Inc., designed for operation in the 1.8GHz to 2.2GHz frequency band. This device is classified as obsolete and no longer in active production. The part delivers 16.6dB gain with a 0.8dB noise figure at 2.2GHz test frequency, operating from a 1.5V to 3.1V supply with 4.4mA supply current. Due to its obsolete status, identification of functionally equivalent active alternatives is necessary for ongoing system support and new design implementations.

Substiute Parts

BGS8M4UK/SZ

NXP USA Inc.In Stock: 968BGS8M4UK/SZ Datasheet

Current PartRFQ

BGS8H5UKZ

NXP USA Inc.In Stock: 21137BGS8H5UKZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BGS8M4UK/SZ is determined by the following critical parameters: frequency band coverage, gain characteristics, noise figure performance, supply voltage compatibility, and surface mount package form factor. The BGS8H5UKZ qualifies as a manufacturer-recommended substitute based on NXP's product line continuity within the BGS8 base product family.

The BGS8H5UKZ extends frequency coverage to 1.425GHz ~ 2.69GHz, encompassing the original 1.8GHz ~ 2.2GHz operating band. Gain is specified at 13.1dB with noise figure of 0.75dB. Both devices maintain surface mount technology and ROHS3 compliance. The BGS8H5UKZ is currently in active production status with substantial inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The BGS8H5UKZ is the manufacturer-designated substitute for the obsolete BGS8M4UK/SZ. Selection of the BGS8H5UKZ is supported by active product status, ensuring long-term availability and supply chain continuity. Both devices maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent applications.

The BGS8H5UKZ provides broader frequency coverage spanning 1.425GHz to 2.69GHz, which encompasses the original device's 1.8GHz to 2.2GHz band. The substitute exhibits superior noise figure performance at 0.75dB compared to the original 0.8dB specification. Gain differential of 3.5dB between devices requires circuit-level evaluation for specific application requirements.

Package form factor differs between the original 6-WLCSP (0.65x0.44) and substitute 6-XSON (1.1x0.7), necessitating PCB layout modification. Both maintain surface mount technology and six-pin configurations.

Frequently Asked Questions (FAQ)

Q: Why is the BGS8M4UK/SZ classified as obsolete? A: The BGS8M4UK/SZ has reached end-of-life status in NXP's product portfolio. The manufacturer recommends transitioning to the BGS8H5UKZ for new designs and ongoing system support.

Q: What are the critical parameters for substitution compatibility? A: Frequency band coverage, gain and noise figure specifications, supply voltage range, and surface mount package compatibility determine substitution viability. The BGS8H5UKZ satisfies these criteria within the specified operating parameters.

Q: Does the BGS8H5UKZ cover the original frequency band? A: Yes. The BGS8H5UKZ frequency range of 1.425GHz ~ 2.69GHz fully encompasses the original BGS8M4UK/SZ band of 1.8GHz ~ 2.2GHz.

Q: What is the gain difference between these devices? A: The BGS8M4UK/SZ specifies 16.6dB gain while the BGS8H5UKZ specifies 13.1dB gain. This 3.5dB difference requires evaluation within the specific circuit application to determine impact on system performance.

Q: Are there package compatibility considerations? A: Yes. The original device uses 6-WLCSP (0.65x0.44) packaging while the substitute uses 6-XSON (1.1x0.7) packaging. PCB layout and footprint modifications are required for physical implementation.

Q: Do both devices meet current regulatory compliance standards? A: Yes. Both the BGS8M4UK/SZ and BGS8H5UKZ are ROHS3 compliant and REACH unaffected, satisfying current regulatory requirements.

Q: What is the noise figure comparison? A: The BGS8H5UKZ provides improved noise figure performance at 0.75dB compared to the original device's 0.8dB specification.