Infineon Technologies BFP720ESDH6327XTSA1

Overview

BFP720ESDH6327XTSA1 from Infineon Technologies is a SiGe:C NPN heterojunction bipolar RF transistor optimized as a low-noise amplifier (LNA) in 2.4–5.5 GHz wireless front-ends. It delivers 0.65 dB NF_min at 2.4 GHz, 26 dB G_ma gain at 2.4 GHz, and 22 dBm OIP3 at 5.5 GHz under 15 mA bias, with integrated 2 kV HBM ESD protection and operation up to 4.2 V_CE.

For engineers reviewing the BFP720ESDH6327XTSA1 datasheet, BFP720ESDH6327XTSA1 pinout, BFP720ESDH6327XTSA1 application, or BFP720ESDH6327XTSA1 equivalent, this device is selected for ultra-low-noise, high-linearity RF amplification in battery-constrained 802.11n/ac, LTE, and GPS LNA stages where DC power efficiency and ESD resilience are critical.

Technical Context

The BFP720ESDH6327XTSA1 employs SiGe:C heterojunction technology to achieve superior f_T (>30 GHz) and f_max (>60 GHz), enabling stable wideband amplification from 150 MHz to 10 GHz. Its dual-emitter SOT343 package supports symmetric emitter connections for improved thermal symmetry and matching.

Internal ESD protection circuits-integrated across base-collector and base-emitter junctions-enable robust 2 kV HBM tolerance without external diodes. The device operates with V_CE ≤ 4.2 V and I_C ≤ 30 mA, supporting low-quiescent-current biasing (5–15 mA) for portable LNA designs.

Key Specifications

Pinout & Package

SOT343 plastic surface-mount package with visible leads, 1.6 mm × 1.6 mm footprint, 0.95 mm height, and dual-emitter configuration for balanced thermal dissipation and layout symmetry.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BFP640FH6327XTSA1, the BFP720ESDH6327XTSA1 trades 0.2 dB NF penalty for +3 dB OIP3 and integrated ESD-making it superior for multi-standard coexistence. Against NE85633, it sacrifices 0.15 dB NF for full system-level ESD immunity and simplified layout.

Availability

BFP720ESDH6327XTSA1 is available at Aetrix Electronics and suitable for Wi-Fi 6E client radios, GPS/GLONASS navigation modules, and 4G LTE industrial modems requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.

Supply support for BFP720ESDH6327XTSA1 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, with global R&D centers and ISO/TS 16949-certified wafer fabs.

The BFP720ESD series belongs to Infineon's high-frequency SiGe:C transistor product line, designed specifically for ultra-low-noise, high-linearity RF amplification in battery-powered wireless infrastructure and consumer devices.

FAQ

What is the maximum recommended collector-emitter voltage for continuous operation?

The BFP720ESDH6327XTSA1 has a minimum V(BR)_CEO of 4.2 V at I_C = 1 mA, and its absolute maximum rating is 4.2 V per Table 3. Continuous operation above 4.2 V risks avalanche breakdown and permanent degradation of h_FE and noise figure. For 3.3 V systems, a 10% derating margin is applied, limiting V_CE to 3.0 V in production designs.

Can this transistor be used in Class-A power amplifier configurations?

No-the BFP720ESDH6327XTSA1 is characterized and optimized exclusively for low-noise small-signal amplification, not power amplification. Its P_tot rating is 100 mW, and its OIP3 degrades sharply above 15 mA I_C. At 30 mA (maximum rated I_C), G_ma drops by 8 dB and NF_min increases by 1.4 dB, making it unsuitable for PA use.

Is the dual-emitter configuration internally connected or independent?

Pins 2 and 4 are electrically connected internally as a single emitter node, confirmed by Figure 2 (Testing Circuit) and Table 15 in the datasheet. This dual-terminal layout improves thermal spreading and solder joint reliability but does not provide separate emitter control or current splitting functionality.

Does the SPICE model include thermal and noise parameter extraction?

Yes-the official Infineon GP SPICE model (v1.2, included in Chapter 6 of the datasheet) contains temperature-dependent Gummel plots, correlated noise sources (R_n, K_f, α_n), and scalable geometry parameters. It reproduces measured NF_min, OIP3, and S-parameter phase accuracy within ±0.15 dB and ±2° up to 10 GHz.