Infineon Technologies BFR 183W E6327

Overview

BFR183W E6327 from Infineon Technologies is a low-noise silicon bipolar RF transistor designed for broadband amplifier stages in 900 MHz and 1.8 GHz cellular front-ends. It delivers f_T = 8 GHz, NF_min = 0.9 dB at 900 MHz, and h_FE = 70–140 at I_C = 15 mA / V_CE = 8 V, operating with V_CEO = 12 V and P_tot = 450 mW in SOT323 package.

For engineers reviewing the BFR183W E6327 datasheet, BFR183W E6327 pinout, BFR183W E6327 application, or BFR183W E6327 equivalent, key selection criteria include noise figure at 900 MHz/1.8 GHz, transition frequency, gain flatness across UHF bands, thermal resistance (R_thJS = 210 K/W), and AEC-Q101 qualification status for automotive RF modules.

Technical Context

This NPN RF transistor uses epitaxial base technology optimized for low-noise amplification in narrow- to wideband receiver paths. Its f_T ≥ 6 GHz (typ. 8 GHz) and C_cb = 0.46 pF (typ.) enable stable gain up to 2 GHz with minimal parasitic coupling.

The device operates with DC bias points from I_C = 2–30 mA and V_CE = 8 V, supporting both continuous-wave and pulsed RF amplification. Z_Sopt-matched configuration achieves G_ms = 18.5 dB at 900 MHz and G_ma = 12 dB at 1.8 GHz, while |S21|² reaches 15 dB at 900 MHz under 50 Ω source/load conditions.

Key Specifications

Pinout & Package

Package: SOT323 - surface-mount plastic package with visible leads, RoHS-compliant and halogen-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BFR183W E6327, BFP183W E6327 offers identical RF performance with packaging variation, while MRF581 trades noise and bandwidth for higher voltage tolerance-making it unsuitable as a direct LNA replacement but viable for driver amplification where gain flatness below 1 GHz is acceptable.

Availability

BFR183W E6327 is available at Aetrix Electronics and suitable for GSM/EDGE base station receivers, automotive telematics RF front-ends, and ISM-band wireless sensor nodes requiring stable component supply with full traceability and AEC-Q101 documentation.

Supply support for BFR183W 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, RF, and automotive ICs, with global R&D centers and ISO/TS 16949-certified wafer fabs.

The BFR183W belongs to Infineon's high-frequency bipolar transistor product line, engineered specifically for low-noise, high-gain RF amplification in sub-3 GHz wireless infrastructure and automotive connectivity systems.

FAQ

What is the maximum safe DC collector current for continuous operation?

The absolute maximum rated collector current is 65 mA, but continuous operation above 30 mA is not recommended due to thermal limitations. At I_C = 30 mA and V_CE = 8 V, power dissipation reaches 240 mW-requiring strict PCB copper area and airflow control to stay within the 450 mW total limit and avoid junction temperature exceeding 150 °C.

Is the BFR183W E6327 suitable for 5G NR sub-6 GHz applications?

No-the device's f_T = 8 GHz and verified gain performance up to 2 GHz make it appropriate for LTE-FDD/TDD and legacy 3G/4G bands, but insufficient for stable gain or noise performance above 3.5 GHz. For n77/n78 bands, GaAs pHEMT or SiGe HBT alternatives with f_T > 25 GHz are required.

How does the AEC-Q101 qualification impact board-level reliability?

AEC-Q101 qualification confirms the BFR183W E6327 passed accelerated stress tests including HTOL (1000 h at 125 °C), TC (1000 cycles -40/+125 °C), and HAST (96 h at 130 °C/85% RH). This validates robustness against thermal cycling and moisture ingress in automotive under-hood environments, reducing field failure risk in RF modules exposed to vibration and temperature swings.

Can the BFR183W E6327 be operated in common-base configuration?

Yes-it supports common-base operation with verified AC characteristics including C_cb, C_ce, and f_T. In this mode, the emitter becomes the RF input, enabling ultra-wideband amplification with improved high-frequency stability. However, input impedance drops significantly (~10 Ω), requiring precise matching network design and careful grounding of the base terminal to minimize parasitic inductance.