Infineon Technologies BFP720FH6327XTSA1

Overview

BFP720FH6327XTSA1 from Infineon Technologies is a low-noise SiGe:C NPN bipolar RF transistor optimized for wideband LNA applications in mobile and wireless infrastructure. It delivers 0.7 dB minimum noise figure at 5.5 GHz, 26.5 dB maximum stable gain at 1.9 GHz, and operates at V_CE = 3 V with I_C = 13 mA - enabling high-sensitivity front-end amplification in GPS, Bluetooth, and Wi-Fi receivers.

For engineers reviewing the BFP720FH6327XTSA1 datasheet, BFP720FH6327XTSA1 pinout, BFP720FH6327XTSA1 application, or BFP720FH6327XTSA1 equivalent, key selection criteria include noise figure vs. frequency trade-offs, gain flatness across 1–10 GHz, DC bias stability at low current, and TSFP-4-1 package thermal performance in compact RF layouts.

Technical Context

This transistor employs Infineon's silicon germanium carbon heterojunction process to achieve f_T ≈ 45 GHz and f_max > 60 GHz, supporting stable amplification up to 12 GHz. Its NPN structure uses dual-emitter configuration (pins 2 and 4) for improved thermal symmetry and matching in differential designs.

DC operation is specified from V_CE = 1.0 V to 4.0 V with I_C ≤ 25 mA; AC performance is characterized at V_CE = 3 V, I_C = 13 mA - a bias point balancing NFmin, G_ms, and linearity (OP1dB = 7 dBm, OIP3 = 21 dBm at 5.5 GHz).

Key Specifications

Pinout & Package

Package: TSFP-4-1 - thin small flat plastic, Pb-free/RoHS-compliant, 1.1 mm × 1.1 mm × 0.37 mm body, visible leads, tape-and-reel packaging (H6327 suffix).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-noise RF transistor applications.

Compared with BFP640F and MMA040407-12, BFP720FH6327XTSA1 offers superior noise figure flatness from 1–10 GHz at lower supply voltage and current - making it optimal for multi-band portable devices where power efficiency and board space constrain bias architecture.

Availability

BFP720FH6327XTSA1 is available at Aetrix Electronics and suitable for GPS receivers, Bluetooth LE headsets, UWB sensor nodes, and LTE Band-13 modules requiring stable component supply across high-mix, low-volume production runs.

Supply support for BFP720FH6327XTSA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and RF components, with global R&D centers and ISO/TS 16949-certified wafer fabs.

The BFP720F belongs to Infineon's SiGe:C RF transistor product line, engineered specifically for ultra-low-noise, wideband amplification in battery-constrained wireless endpoints - not general-purpose switching or power applications.

FAQ

What is the recommended DC bias for achieving minimum noise figure?

The datasheet specifies NF_min = 0.7 dB at 5.5 GHz under V_CE = 3 V and I_C = 13 mA with source impedance Z_S = Z_opt ≈ 22 + j15 Ω. Deviating from this bias point increases NF by ≥0.3 dB per ±2 mA I_C shift or ±0.5 V V_CE change, confirmed across 25 °C to 85 °C ambient.

Can BFP720FH6327XTSA1 be used in differential LNA configurations?

Yes - the dual-emitter structure (pins 2 and 4) is electrically connected internally and thermally symmetric, enabling balanced differential pair implementation. Layout must maintain equal trace length and grounding to both emitters to preserve common-mode rejection >35 dB up to 6 GHz.

Is the TSFP-4-1 package compatible with standard reflow profiles?

Yes - the RoHS-compliant TSFP-4-1 package is qualified for JEDEC J-STD-020D Level 1 moisture sensitivity and withstands peak reflow temperatures of 260 °C for ≤30 seconds. Recommended profile follows IPC-7531 guidelines with ramp rate ≤3 °C/s and time above 217 °C limited to 60–90 s.

Does Infineon provide S-parameter models for simulation?

Yes - the official BFP720F SPICE model and Touchstone S2P files (1–12 GHz, V_CE = 3 V, I_C = 13 mA) are published in the "Simulation Data" section (page 23) of Revision 1.1 datasheet and hosted on Infineon's support portal under document ID BFP720F_SIM.