Infineon Technologies BFP 740F E6327

Overview

BFP 740F E6327 from Infineon Technologies is an RF bipolar NPN transistor optimized for low-noise amplification up to 42 GHz, with 4.7 V collector-emitter breakdown voltage (V_CEO), 25 mA collector current (I_C), and 13 dB gain at 2 GHz, deployed in 5G front-end modules and microwave receiver LNAs.

For engineers reviewing the BFP 740F E6327 datasheet, BFP 740F E6327 pinout, BFP 740F E6327 application, or BFP 740F E6327 equivalent, key selection criteria include f_T = 42 GHz, NF = 0.8 dB at 2 GHz, P_1dB = –5 dBm at 2 GHz, S-parameters up to 40 GHz, and thermal resistance R_thJC = 120 K/W in 4TSFP package.

Technical Context

This device uses a silicon bipolar process with epitaxial base and sub-micron emitter geometry to achieve high f_T and low noise figure. Its heterojunction-free NPN structure supports broadband operation from DC to 42 GHz with stable biasing via fixed-base configuration.

The 4TSFP (Thin Small Flat Package) enables surface-mount integration in compact RF layouts, with grounded emitter pad and isolated collector terminal for impedance-controlled matching networks. Device linearity is characterized by OIP3 = +12 dBm at 2 GHz under 4.7 V/15 mA bias.

Key Specifications

Pinout & Package

Package: 4TSFP (Thin Small Flat Package), 1.1 mm × 0.9 mm × 0.37 mm, thermally enhanced with exposed emitter pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BFP 640F E6327 and NE85633, the BFP 740F E6327 delivers optimal balance of 42 GHz f_T, 0.8 dB NF, and drop-in 4TSFP compatibility for 5G and satellite LNA designs without layout change.

Availability

BFP 740F E6327 is available at Aetrix Electronics and suitable for 5G infrastructure, satellite communications, millimeter-wave test equipment, and automotive radar requiring stable component supply and traceable lot-level documentation.

Supply support for BFP 740F 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, RF, and automotive ICs, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q200.

The BFP 740F belongs to Infineon's high-frequency bipolar transistor product line, engineered specifically for low-noise, high-gain amplification in wireless infrastructure and aerospace-grade RF front-ends.

FAQ

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

The BFP 740F E6327 achieves its specified 0.8 dB NF at 2 GHz with V_CE = 4.7 V, I_C = 15 mA, and base bias set via 10 kΩ resistor from V_CC. Deviation beyond ±2 mA collector current increases NF by ≥0.15 dB due to base resistance modulation effects.

Can this transistor be used in common-base configuration?

Yes - the BFP 740F E6327 supports common-base operation with verified S-parameters up to 40 GHz. In this mode, it delivers 11 dB gain and 1.1 dB NF at 2 GHz, with input impedance near 50 Ω enabling direct coaxial interface without matching networks.

Is the 4TSFP package lead-free and RoHS compliant?

Yes - the BFP 740F E6327 uses a lead-free, halogen-free 4TSFP package qualified to RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), with peak reflow temperature of 260 °C.

Does Infineon provide SPICE models for this device?

No - Infineon does not publish SPICE models for the BFP 740F E6327. Designers must use measured S-parameters (provided in Touchstone .s4p format) with linear RF simulation tools like ADS or Cadence AWR for accurate wideband modeling.