Infineon Technologies BFP193E6327HTSA1

Overview

BFP193E6327HTSA1 from Infineon Technologies is a low-noise silicon bipolar RF transistor designed for high-gain, broadband amplifier stages up to 2 GHz. It delivers f_T = 8 GHz, NF_min = 1 dB at 900 MHz, and G_ma = 18 dB at 900 MHz, with SOT143 package and pinout C-E-B-E. Used in cellular front-end LNA modules and ISM-band receiver chains.

For engineers reviewing the BFP193E6327HTSA1 datasheet, BFP193E6327HTSA1 pinout, BFP193E6327HTSA1 application, or BFP193E6327HTSA1 equivalent, key selection criteria include noise figure at 900 MHz/1.8 GHz, transducer gain under 50 Ω terminations, third-order intercept point (IP3), thermal resistance (R_thJS = 135 K/W), and AEC-Q101 qualification status.

Technical Context

This NPN bipolar RF transistor operates in common-emitter configuration with emitter-grounded biasing for optimal noise performance. Its f_T of 8 GHz and C_cb = 0.59 pF (typ.) support stable amplification through 1.8 GHz while maintaining low intermodulation distortion (IP3 = 29.5 dBm).

Designed for linear broadband operation, it uses a double-emitter structure (pins 2 and 4 both E) to improve thermal dissipation and current handling. DC current gain h_FE ranges from 70–140 at I_C = 30 mA, V_CE = 8 V, enabling predictable bias network design in cascaded gain blocks.

Key Specifications

Pinout & Package

SOT143 package: 4-pin plastic surface-mount package with exposed collector pad for thermal enhancement; dimensions per JEDEC MO-178AB.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BFP193E6327HTSA1, BFP181E6327HTSA1 trades 0.2 dB NF and 1 GHz f_T for cost, while MRF5812LSR3 offers higher f_T but lacks automotive qualification and double-emitter thermal advantage.

Availability

BFP193E6327HTSA1 is available at Aetrix Electronics and suitable for cellular infrastructure repeaters, automotive telematics modules, and portable GNSS receivers requiring stable component supply across extended temperature and lifecycle requirements.

Supply support for BFP193E6327HTSA1 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, and RF solutions, with global manufacturing and R&D centers.

The BFP193 belongs to Infineon's bipolar RF transistor product line, engineered specifically for high-linearity, low-noise amplification in 0.8–2.5 GHz wireless infrastructure and automotive connectivity systems.

FAQ

What is the recommended bias condition for minimum noise figure?

For NF_min = 1 dB at 900 MHz, operate at I_C = 10 mA and V_CE = 8 V with source impedance Z_S = Z_Sopt ≈ 15 + j10 Ω. This condition is verified in the datasheet's AC characteristics table and requires external matching network implementation on PCB.

Is the SOT143 package thermally enhanced?

Yes - the SOT143 package features an exposed collector pad that serves as the primary thermal path. When soldered to ≥1 cm² of 2-oz copper on the PCB, it achieves the specified R_thJS = 135 K/W, enabling full 580 mW power dissipation at T_S ≤ 72 °C.

Does BFP193E6327HTSA1 support 5G sub-6 GHz bands?

It delivers usable gain and linearity up to 2.5 GHz (G_ma = 12 dB, IP3 = 27 dBm at 2.4 GHz), making it suitable for 5G FR1 n41 (2.5 GHz) and n78 (3.5 GHz) front-end driver stages when paired with appropriate filtering and matching, though not optimized beyond 2.5 GHz.

How does the dual-emitter configuration affect PCB layout?

The dual-emitter pins (2 and 4) must be tied together externally with minimal trace length (<1 mm) and shared thermal via array to preserve high-frequency current sharing. Separating them degrades gain flatness above 1 GHz and increases effective emitter inductance by >20%.