Infineon Technologies BFP193WE6327HTSA1

Overview

BFP193WE6327HTSA1 from Infineon Technologies is a low-noise silicon bipolar RF transistor optimized for high-gain, broadband amplification up to 2 GHz, with f_T = 8 GHz, NF_min = 1 dB at 900 MHz, V_CEO = 12 V, and P_tot = 580 mW in SOT343 package - deployed in cellular front-end LNA stages and GPS receiver IF amplifiers.

For engineers reviewing the BFP193WE6327HTSA1 datasheet, BFP193WE6327HTSA1 pinout, BFP193WE6327HTSA1 application, or BFP193WE6327HTSA1 equivalent, key selection criteria include noise figure at 900 MHz/1.8 GHz, transducer gain under 50 Ω matching, third-order intercept point (IP3 = 29.5 dBm), and thermal resistance (R_thJS = 145 K/W) for RF board layout and thermal derating.

Technical Context

This NPN bipolar transistor operates in common-emitter configuration with emitter-grounded biasing for RF amplification. Its f_T of 8 GHz and C_cb = 0.63 pF (typ.) support stable gain up to 2 GHz while maintaining low intermodulation distortion - verified via random sampling per AC characteristics table.

The device uses a monolithic silicon die in SOT343 with four terminals (E-C-E-B), where dual emitter pins reduce series inductance for improved high-frequency stability. Thermal design relies on R_thJS = 145 K/W and junction temperature limit of 150 °C, requiring controlled PCB copper area and soldering-point temperature monitoring per AN077.

Key Specifications

Pinout & Package

SOT343 (4-pin plastic surface-mount package) with 1.3 mm × 1.3 mm footprint, 0.95 mm height, and gull-wing leads. Dual emitter terminals reduce bondwire inductance; collector and base are single-terminal.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BFP193WE6327HTSA1, BFP181W trades 0.2 dB NF and 1 GHz f_T for lower unit cost, while MRF581 extends frequency range but lacks dual-emitter symmetry - making BFP193W optimal for compact, thermally constrained 900 MHz–2 GHz LNAs requiring repeatable matching.

Availability

BFP193WE6327HTSA1 is available at Aetrix Electronics and suitable for cellular infrastructure repeaters, automotive GPS modules, ISM-band wireless sensors, and LPWAN metering systems requiring stable component supply across extended production lifecycles.

Supply support for BFP193WE6327HTSA1 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, headquartered in Munich with global fabrication and packaging facilities.

The BFP193W belongs to Infineon's RF bipolar transistor product line, engineered specifically for high-linearity, low-noise amplification in sub-3 GHz wireless communication front-ends - emphasizing thermal robustness and AEC-Q101 qualification for automotive-grade deployment.

FAQ

What is the recommended bias condition for minimum noise figure?

For NF_min = 1 dB at 900 MHz, operate at IC = 10 mA and VCE = 8 V with source impedance ZS = ZSopt ≈ 15 + j10 Ω. This requires an external matching network - not 50 Ω - and is validated per the datasheet's AC characteristics table on page 3.

Can BFP193WE6327HTSA1 be used in Class AB amplifier configurations?

Yes - its hFE = 70–140 at IC = 30 mA and VCE = 8 V supports linear Class AB operation. However, thermal derating is required above TS = 66°C per the Ptot vs. TS curve; sustained 30 mA operation demands ≥18 mm² copper pour for safe junction temperature.

Is the SOT343 package lead-free and RoHS compliant?

Yes - BFP193WE6327HTSA1 uses a fully Pb-free SOT343 package conforming to RoHS Directive 2011/65/EU. The "E6327" suffix denotes tape-and-reel packaging with lead-free finish; no exemptions apply per Infineon's material declaration.

How does the dual-emitter configuration affect PCB layout?

The dual-emitter pins (1 and 3) must be routed symmetrically with equal trace length and width to preserve RF balance. Unequal paths introduce phase skew that degrades stability factor k and raises NF - verified in Infineon's application note AN077 for SOT343 thermal and RF layout guidelines.