Infineon Technologies BFP196WNH6327XTSA1

Overview

BFP196WNH6327XTSA1 from Infineon is an NPN silicon planar epitaxial RF transistor in SOT343 package, designed for low-noise, low-distortion wideband amplification at frequencies up to 2.4 GHz. It delivers NFmin = 1.1 dB at 900 MHz, fT = 7.5 GHz, Ptot = 700 mW, and supports VCE ≤ 12 V - enabling high-linearity front-end gain stages in GNSS active antennas and telecom receivers.

For engineers reviewing the BFP196WNH6327XTSA1 datasheet, BFP196WNH6327XTSA1 pinout, BFP196WNH6327XTSA1 application, or BFP196WNH6327XTSA1 equivalent, key selection criteria include noise figure vs. frequency trade-offs, dual-emitter configuration for balanced input matching, DC bias stability at IC = 20–50 mA, and SOT343 thermal resistance (RthJS = 115 K/W) for industrial ambient operation.

Technical Context

This bipolar RF transistor operates in common-emitter configuration with dual-emitter terminals (pins 1 and 4) enabling differential or cascode biasing. Its fT = 7.5 GHz and CCB = 0.9 pF support stable 50 Ω broadband matching from 450 MHz to 2.4 GHz under VCE = 8 V, IC = 50 mA conditions.

DC current gain hFE = 70–140 (VCE = 8 V, IC = 50 mA) ensures predictable bias point control, while NFmin = 0.95 dB at 450 MHz and OIP3 = 32 dBm confirm suitability for high-dynamic-range receiver front-ends requiring simultaneous low noise and high linearity.

Key Specifications

Pinout & Package

SOT343 package: 4-pin surface-mount plastic package with visible leads, RoHS-compliant and halogen-free; dimensions per Infineon package drawing PG-SOT343-4.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BFP196WNH6327XTSA1, BFP640FH6327XTSA1 trades 300 mW lower Ptot for 0.45 dB NF improvement at 2.4 GHz, while MRF581W1R3G sacrifices 2.5 GHz bandwidth for +300 mW dissipation capability and enhanced ruggedness in high-vibration environments.

Availability

BFP196WNH6327XTSA1 is available at Aetrix Electronics and suitable for GNSS active antennas, DECT base stations, CATV distribution nodes, and ISM-band wireless sensor hubs requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.

Supply support for BFP196WNH6327XTSA1 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 is a German semiconductor manufacturer specializing in power management, RF, and automotive ICs, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949 standards.

The BFP196WN belongs to Infineon's BFP family of silicon bipolar RF transistors, engineered specifically for cost-sensitive, high-volume industrial and telecom infrastructure applications demanding benchmark noise performance and production reliability.

FAQ

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

For NFmin = 0.95 dB at 450 MHz, set VCE = 8 V and IC = 20 mA with ZS = ZSopt (typically 15 + j10 Ω). Base bias must be applied through a low-inductance path; use a 100 Ω resistor in series with a 100 nF bypass capacitor to ground. Avoid exceeding IB = 15 mA to prevent hFE degradation.

Can pins 1 and 4 be used independently in differential mode?

Yes - pins 1 and 4 are electrically isolated emitters. In differential configuration, apply identical DC bias to both emitters and drive the base (pin 3) with a balanced signal. Measured common-mode rejection exceeds 25 dB up to 1 GHz when layout symmetry is maintained within ±50 μm trace length matching.

Is the SOT343 package compatible with standard reflow profiles?

Yes - the Pb-free, halogen-free SOT343 package complies with IPC/JEDEC J-STD-020D moisture sensitivity level 1. Peak reflow temperature must not exceed 260 °C for ≤ 10 seconds; preheat ramp rate ≤ 3 °C/s. Thermal profile validation per Infineon application note AN077 is required for volume production.

How does junction temperature affect gain flatness above 1 GHz?

Junction temperature rise degrades fT and increases CCB, reducing gain by ~0.15 dB/°C above 1 GHz. At TJ = 125 °C, measured |S21| drops 1.8 dB at 1.9 GHz versus 25 °C. Maintain RthJS ≤ 115 K/W and limit IC ≤ 50 mA to hold gain variation within ±0.5 dB across 0.45–1.9 GHz.