company blog about Infineon BF776 High-Performance NPN Bipolar RF Transistor: Low-Noise Amplifier Design

Shenzhen Mingjiada Electronics supplies genuine, in-stock Infineon BF776 high-performance NPN bipolar RF transistors: the ideal choice for low-noise amplifier designs

BF776 Product Overview

The BF776 is a high-performance NPN bipolar RF transistor (SiGe HBT) launched by Infineon Technologies, specifically designed for high-performance low-noise amplifier (LNA) applications. The device is housed in a standard SOT-343 package with visible leads, facilitating soldering and inspection, whilst complying with RoHS lead-free environmental requirements.

The key advantage of the BF776 lies in its ultra-low noise figure—with a typical minimum noise figure of just 0.8 dB under operating conditions of 1.8 GHz, 3 V and 5 mA. This specification makes it the device of choice for RF front-end designs with stringent noise performance requirements.

BF776 Key Product Specifications

- Transistor type: NPN bipolar RF BJT

- Characteristic frequency fT: 46 GHz, outstanding high-frequency response

- Minimum noise figure NFmin: typically 0.8 dB @ 1800 MHz, key advantage for low-noise amplification

- Maximum gain Gmax: 21.5 dB @ 1800 MHz, high RF amplification efficiency

- Maximum collector current Ic: 50 mA

- Collector–emitter voltage Vceo: 4.7 V

- Total power dissipation Ptot: 200 mW

- DC current gain hFE: minimum 180 (3 V, 30 mA)

- Operating temperature range: –55 °C to +150 °C

- Package specification: SOT-343 (SC-82A) surface-mount, supplied in tape-and-reel packaging

- Compliance: Lead-free, halogen-free, RoHS-compliant

Typical Applications

The BF776 is suitable for a wide range of non-automotive RF applications, including:

Wireless communications: WLAN (802.11 a/b/g/n/ac), WiMax, UWB, Bluetooth

Positioning and broadcasting: GPS, SDARS (Satellite Digital Audio Radio Service), DAB (Digital Audio Broadcasting)

Satellite reception: LNB (Low Noise Block downconverter)

Cellular communications: UMTS / LTE bands

Industrial and scientific: ISM band equipment

Test equipment: VHF communication systems, radar equipment, scientific instruments

Mingjiada Electronics: BF776 – Genuine stock available

Shenzhen Mingjiada Electronics Co., Ltd. is a specialist distributor of electronic components, offering a comprehensive range of Infineon RF products, including RF transistors, RF switches, low-noise amplifier ICs and antenna tuners. Founded in 1996, the company has obtained ISO 9001 and ISO 14001 international quality and environmental management system certifications. It has branches in Shenzhen, Hong Kong, Japan, Russia and Taiwan, and boasts stable supply channels and a comprehensive logistics service system.

BF776 Product Availability Information:

Part Number: BF776H6327XTSA1 / BF776

Batch: 25+

Package: SOT-343

Stock: 3,000

Status: Genuine, in stock

Contact Details:

Contact: Mr Chen

Tel: +86 13410018555 / 86755-83294757

Email: sales@hkmjd.com

Website: www.integrated-ic.com

Address: Rooms 1239–1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province