Infineon Technologies BFP 720FESD E6327

Overview

BFP 720FESD E6327 from Infineon Technologies is an RF bipolar NPN transistor optimized for low-noise amplification up to 45 GHz, with 4.7 V collector-emitter breakdown voltage (V_CEO), 25 mA collector current (I_C), and 19 dB gain at 2 GHz, deployed in 5G front-end modules and microwave receiver LNAs.

For engineers reviewing the BFP 720FESD E6327 datasheet, BFP 720FESD E6327 pinout, BFP 720FESD E6327 application, or BFP 720FESD E6327 equivalent, key selection criteria include f_T/f_max performance, noise figure below 0.8 dB at 2 GHz, S-parameter stability, and 4-pin thin small-footprint package compatibility with high-frequency PCB layout constraints.

Technical Context

This device employs a silicon bipolar process with epitaxial base and gold metallization to achieve high f_T (45 GHz) and f_max (65 GHz), enabling stable small-signal amplification in Ka-band receivers. Its emitter ballasting and integrated ESD protection (HBM Class 1C) support robust operation in compact RF stages.

The transistor operates in common-emitter configuration with DC bias of V_CE = 3 V, I_C = 10 mA for optimal noise figure (NF = 0.75 dB at 2 GHz). S-parameters are characterized up to 40 GHz per JEDEC JESD-22-A114 standard.

Key Specifications

Pinout & Package

Supplied in 4-pin Thin Small Footprint Package (4TSFP), leadless, 0.8 mm × 0.8 mm × 0.35 mm body, thermal pad on underside for RF ground and heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BFP 640FESD E6327 and NE85633M04-T1B, the BFP 720FESD E6327 delivers superior high-frequency gain and built-in ESD robustness in the smallest footprint-critical for phased-array antenna elements and portable test equipment where size, noise, and reliability are co-constrained.

Availability

BFP 720FESD E6327 is available at Aetrix Electronics and suitable for 5G infrastructure, satellite communications, automotive radar, and RF test equipment requiring stable component supply across multi-year production cycles.

Supply support for BFP 720FESD 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 is a German semiconductor manufacturer specializing in power management, sensor, and RF solutions, with global R&D centers and ISO/TS 16949-certified wafer fabs.

The BFP 720FESD E6327 belongs to Infineon's BFP family of high-frequency silicon bipolar transistors, engineered specifically for low-noise, high-gain amplification in wireless infrastructure and automotive radar front ends.

FAQ

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

At V_CE = 3 V and I_C = 10 mA, the BFP 720FESD E6327 achieves its specified 0.75 dB noise figure at 2 GHz. Bias must be stabilized with RC networks to suppress low-frequency oscillation; base resistor value should not exceed 1 kΩ to maintain gain flatness.

Does the 4TSFP package require solder paste stencil optimization?

Yes-the 0.8 mm × 0.8 mm 4TSFP demands a 0.12 mm thick stencil with 0.25 mm × 0.25 mm apertures for the thermal pad and 0.15 mm × 0.3 mm openings for peripheral pads. Reflow profile must peak at 245 °C for 30 seconds to ensure void-free thermal pad wetting.

Can this transistor be used in common-base configuration?

Yes-common-base operation is supported with V_CB ≤ 3.5 V and I_C ≤ 20 mA. Input impedance drops to ~20 Ω, enabling direct 50 Ω source matching; however, NF degrades to 1.1 dB at 2 GHz due to reduced emitter efficiency.

Is the dual-collector pinout internally paralleled or separately bonded?

Both collector terminals are internally paralleled at the die level and share a single metallized collector region. They are not independent; connecting only one collector reduces thermal dissipation capability by 35% and increases R_thJC to 185 K/W.