Infineon Technologies BFG 196 E6327

Overview

BFG 196 E6327 from Infineon Technologies is an NPN silicon RF transistor optimized for low-noise, low-distortion broadband amplification up to 1.5 GHz, with f_T = 7.5 GHz, noise figure F = 1.3 dB at 900 MHz, and maximum available power gain G_ma = 14.5 dB at 900 MHz - deployed in DECT/PCN power amplifier stages and antenna front-end modules.

For engineers reviewing the BFG 196 E6327 datasheet, BFG 196 E6327 pinout, BFG 196 E6327 application, or BFG 196 E6327 equivalent, key selection criteria include its SOT223 package thermal resistance (R_thJS ≤ 75 K/W), V_CEO = 12 V rating, h_FE = 70–140 at I_C = 50 mA, C_cb = 0.85 pF typ., and RoHS-compliant Pb-free construction.

Technical Context

This RF transistor employs a planar epitaxial silicon structure with emitter ballasting for improved linearity and thermal stability. Its high f_T and low C_cb/C_eb enable stable broadband operation from 100 MHz to 1.8 GHz under pulsed or continuous DC bias conditions.

The device operates with collector-emitter voltage up to 12 V and supports collector currents from 20 mA to 80 mA for optimal noise and gain trade-offs. Its Z_Sopt-matched configuration delivers minimum noise figure at 900 MHz while maintaining >12 dB transducer gain into 50 Ω systems.

Key Specifications

Pinout & Package

Package: SOT223 - surface-mount, thermally enhanced plastic package with exposed collector tab for PCB heat sinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN RF transistor applications.

Compared with BFP181 and MRF581, BFG 196 E6327 uniquely balances 7.5 GHz f_T, 1.3 dB noise figure, 800 mW power dissipation, and SOT223 thermal performance - making it optimal for cost-sensitive, surface-mount, medium-power RF amplifier designs where thermal density and broadband linearity are jointly critical.

Availability

BFG 196 E6327 is available at Aetrix Electronics and suitable for DECT base station power amplifiers, GPS/GNSS front-end LNAs, and ISM-band wireless sensor transmitters requiring stable component supply, consistent parametric binning, and RoHS-compliant manufacturing traceability.

Supply support for BFG 196 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, automotive, and security ICs, with global R&D and wafer fabrication infrastructure.

The BFG 196 E6327 belongs to Infineon's legacy RF bipolar transistor product line, engineered specifically for high-linearity, low-noise amplification in 800 MHz–2 GHz wireless infrastructure and consumer radio systems.

FAQ

What is the recommended bias condition for minimum noise figure?

For minimum noise figure (F = 1.3 dB), operate at I_C = 20 mA, V_CE = 8 V with source impedance matched to Z_Sopt = 12 + j12 Ω (typical at 900 MHz). This condition is validated per Infineon Application Note AN2007-04, and requires external bias network stabilization to suppress low-frequency oscillation.

Can BFG 196 E6327 be used in Class AB power amplifier configurations?

Yes - the device supports Class AB operation with I_CQ = 30–60 mA and V_CEQ = 6–10 V. Its emitter ballasting and h_FE consistency ensure stable quiescent point across temperature, and measured IMD3 remains <−35 dBc at P_OUT = +23 dBm in 900 MHz band.

Is thermal pad soldering required for rated power dissipation?

Yes - the exposed collector pad (Pin 4) must be soldered to a ≥100 mm² copper pour with ≥4 thermal vias to achieve R_thJS ≤ 75 K/W and sustain 800 mW continuous dissipation. Omitting thermal pad connection reduces safe operating area by >40% per Infineon Thermal Resistance Application Note.

Does BFG 196 E6327 support 5G sub-6 GHz bands?

No - while f_T = 7.5 GHz suggests theoretical capability, verified G_ma drops to <4 dB above 2.5 GHz, and C_cb/C_eb parasitics degrade matching above 2.2 GHz. It is validated only up to 1.8 GHz per datasheet AC characteristics table.