Infineon Technologies BFR 360L3 E6327

Overview

BFR 360L3 E6327 from Infineon Technologies is a low-noise silicon bipolar RF transistor optimized for high-frequency amplification and oscillation up to 3.5 GHz. It delivers 1.0 dB noise figure at 1.8 GHz, 14 GHz transition frequency (f_T), and 16 dB maximum available power gain at 1.8 GHz under matched conditions, supporting low-voltage (V_CE = 3 V), low-current (I_C = 15 mA) operation in compact RF front-ends.

For engineers reviewing the BFR 360L3 E6327 datasheet, BFR 360L3 E6327 pinout, BFR 360L3 E6327 application, or BFR 360L3 E6327 equivalent, this device is selected for ultra-low-noise receiver stages, UHF/VHF oscillator designs, and 5G sub-6 GHz small-cell LNA modules where thermal efficiency, RoHS-compliant packaging, and AEC-Q101 qualification are required.

Technical Context

This NPN bipolar transistor operates in common-emitter configuration with emitter-grounded AC biasing. Its f_T of 11–14 GHz and C_cb of 0.26 pF (typ.) enable stable gain and noise performance through 3 GHz, while its 0.15 pF C_ce and 0.42 pF C_eb support broadband impedance matching in 50 Ω systems.

The device uses a thin small leadless package (TSLP-3-1) with direct thermal path from die to PCB solder point (R_thJS = 220 K/W), enabling reliable operation at T_J = 150 °C despite P_tot = 210 mW at T_S = 104 °C - critical for thermally constrained mobile and IoT RF modules.

Key Specifications

Pinout & Package

Supplied in Infineon's TSLP-3-1 (Thin Small Leadless Package, 3-terminal, 1.1 × 0.7 × 0.37 mm) - a Pb-free, halogen-free surface-mount package with exposed collector pad for enhanced thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BFP740FESD, BFR 360L3 E6327 trades 11 GHz f_T margin and 0.15 dB NF for proven AEC-Q101 compliance and tighter thermal resistance in identical footprint; versus MMD2510, it delivers +2.5 dB gain and +3 dB IP3 at same board area, justifying premium for mission-critical RF links.

Availability

BFR 360L3 E6327 is available at Aetrix Electronics and suitable for GPS receiver modules, 5G small-cell infrastructure, and automotive radar sensor front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for BFR 360L3 E6327 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 electronics, and RF solutions, with global R&D and manufacturing facilities.

The BFR 360L3 belongs to Infineon's high-frequency bipolar transistor product line, engineered specifically for low-noise, high-linearity RF amplification and oscillation in wireless communication systems up to 6 GHz.

FAQ

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

For NF_min = 1.0 dB at 1.8 GHz, set V_CE = 3 V and I_C = 3 mA with emitter degeneration resistor bypassed. Source impedance must be tuned to Z_Sopt ≈ 25 + j15 Ω using microstrip stubs or lumped LC networks - not 50 Ω. Bias stability is ensured via base voltage divider with ≥10× emitter resistor value.

Is the TSLP-3-1 package compatible with standard reflow profiles?

Yes - the TSLP-3-1 package supports IPC/JEDEC J-STD-020D-compliant lead-free reflow, with peak temperature ≤ 260 °C for ≤ 30 seconds. The exposed collector pad requires full-solder coverage (≥90%) to achieve rated R_thJS = 220 K/W; insufficient solder voiding increases junction temperature by up to 40 °C.

Does the AEC-Q101 qualification cover all electrical parameters?

AEC-Q101 qualification covers stress tests including HTOL, TC, UHAST, and ESD - confirming reliability under automotive temperature (-40 to +125 °C ambient) and vibration conditions. Electrical parameters (f_T, NF_min, G_ma) are verified per datasheet limits at T_A = 25 °C and T_A = 125 °C, but no extended-range NF data is published beyond 1.8 GHz.

Can BFR 360L3 E6327 replace BFR360A in existing designs?

No - BFR360A uses SOT-23 package with different pinout (1=C, 2=E, 3=B) and higher V_CEO = 12 V. While electrical specs overlap partially, the TSLP-3-1 footprint, thermal path, and ESD rating differ significantly. Layout redesign, thermal validation, and noise matching recalibration are required for migration.