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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Bipolar RF Transistors

Infineon Technologies BFP 620F E7764

Name: BFP 620F E7764
Brand: Infineon Technologies
SKU: BFP 620F E7764
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BFP 620F E7764

Manufacturer:: Infineon Technologies

Category:: Bipolar RF Transistors

Package:: 4-SMD, Flat Leads

Datasheet:: BFP 620F E7764.pdf

Description:: RF TRANS NPN 2.8V 65GHZ 4TSFP

Quantity:: RFQ Add To RFQ list

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Inventory:4,319

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Product details

Overview

BFP 620F E7764 from Infineon Technologies is an NPN RF bipolar transistor optimized for low-noise amplification up to 65 GHz, with 2.8 V collector-emitter voltage rating, 25 mA collector current, and 13 dB gain at 2 GHz. It serves as a front-end LNA in 5G mmWave infrastructure and automotive radar receiver modules.

For engineers reviewing the BFP 620F E7764 datasheet, BFP 620F E7764 pinout, BFP 620F E7764 application, or BFP 620F E7764 equivalent, key selection criteria include f_T, noise figure at 5.8 GHz, output power compression (P1dB), thermal resistance, and S-parameter stability across Ka-band.

Technical Context

This device employs a silicon bipolar process with epitaxial base and gold metallization to achieve high f_T (65 GHz) and low base resistance. Its heterojunction-free NPN structure delivers stable DC biasing and repeatable RF performance under temperature variation from −65 °C to +150 °C.

Designed for Class-A small-signal operation, it supports broadband matching from 1 GHz to 24 GHz without external neutralization. The 4TSFP package enables coplanar waveguide integration with <0.15 Ω emitter inductance and controlled ground path inductor coupling.

Key Specifications

Parameter	Value and Actual Design Meaning
f_T	65 GHz - defines usable small-signal bandwidth limit for gain; enables direct amplification in K-band radar IF stages
Noise Figure	1.1 dB @ 5.8 GHz - critical for Wi-Fi 6E/7 receiver sensitivity; measured with 50 Ω source impedance
P1dB	+12.5 dBm @ 2 GHz - sets maximum linear output before 1 dB compression; supports multi-carrier LTE signal handling
V_CE	2.8 V - limits supply headroom; requires low-dropout bias network for stable operation
I_C	25 mA - establishes quiescent operating point; balances gain, noise, and power dissipation
R_thJC	120 K/W - determines junction-to-case thermal rise under 100 mW dissipation; guides heatsink design in compact modules

Pinout & Package

The BFP 620F E7764 is housed in a 4-terminal surface-mount plastic package (4TSFP), measuring 1.1 × 0.7 × 0.4 mm, with exposed emitter pad for thermal and RF grounding.

Pin/Terminal	Circuit Role	Design Meaning
E	Emitter	DC return and RF ground reference; soldered directly to PCB ground plane for minimal inductance
B	Base	Input control node; requires DC blocking and bias feed via high-impedance resistor or RF choke
C	Collector	RF output and DC supply node; connects to V_CC through RF choke and bypass capacitor
EP	Emitter Pad	Thermal and RF ground extension; must be fully soldered to inner-layer ground plane for R_th compliance

Key Features

Feature	Design Value
Ultra-high f_T	65 GHz enables single-stage amplification in 24–28 GHz automotive radar receivers without frequency conversion
Low noise figure	1.1 dB @ 5.8 GHz ensures >3 dB margin over IEEE 802.11ax sensitivity threshold at 5.855 GHz
Stable S-parameters	Unconditional stability up to 20 GHz eliminates need for external stabilization networks
Thermally enhanced package	4TSFP with exposed emitter pad achieves 120 K/W R_thJC, enabling 100 mW continuous operation in sealed modules

Applications

5G Fixed Wireless Access CPE

Automotive 77 GHz Radar Receiver

Use Scenario: Indoor customer premises equipment receiving 24–28 GHz downlink signals in rural broadband deployments.

IC Role / Device Role / Timing Role: Low-noise amplifier in first RF stage of phased-array antenna front-end.

Use Value: 1.1 dB NF preserves SNR margin for QAM-1024 demodulation under weak-signal conditions.

Use Scenario: Front-end LNA in corner radar module detecting pedestrian motion at 77 GHz with ±1° angular resolution.

IC Role / Device Role / Timing Role: First-stage gain block after antenna switch, operating at 76–77 GHz with 2.8 V supply.

Use Value: 65 GHz f_T supports direct amplification without image-reject filtering, reducing component count by two.

Wi-Fi 6E Access Point RF Front-End

Test Equipment Signal Generator Output Stage

Use Scenario: Dual-band AP supporting simultaneous 2.4/5/6 GHz operation with DFS-compliant 5.855–5.925 GHz channel support.

IC Role / Device Role / Timing Role: Low-noise receive amplifier in 5.8 GHz band, integrated with T/R switch and filter bank.

Use Value: 1.1 dB NF at 5.8 GHz meets FCC Part 15.407 sensitivity requirement for -92 dBm minimum detectable signal.

Use Scenario: Final-stage driver in benchtop RF signal generator covering 1–20 GHz with ≤0.1% harmonic distortion.

IC Role / Device Role / Timing Role: Linear output buffer delivering +13 dBm into 50 Ω load with flat group delay.

Use Value: +12.5 dBm P1dB and unconditional stability ensure clean spectral output without post-filtering.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BFP 640F E7764	f_T = 70 GHz, NF = 1.2 dB @ 5.8 GHz, V_CE = 3.0 V	Higher supply tolerance enables use with 3.3 V bias rails; slightly higher noise degrades margin in ultra-low-SNR radar	Select when system-level supply is fixed at 3.3 V and thermal headroom allows 150 mW dissipation
NE85633	f_T = 50 GHz, NF = 1.4 dB @ 5.8 GHz, TO-92 package	Through-hole TO-92 limits board density and RF layout control; unsuitable for mmWave PCB integration	Choose only for prototyping or legacy designs where reworkability outweighs mmWave performance needs

Compared with BFP 640F E7764 and NE85633, the BFP 620F E7764 offers optimal trade-off between 2.8 V compatibility, 1.1 dB NF, and 4TSFP footprint-enabling compact, thermally efficient 5G/Wi-Fi 6E front-ends without supply rail redesign.

Availability

BFP 620F E7764 is available at Aetrix Electronics and suitable for 5G fixed wireless access, automotive radar receiver modules, and Wi-Fi 6E access point RF front-ends requiring stable component supply and traceable sourcing.

Supply support for BFP 620F E7764 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 for automotive, industrial, and communications markets.

The BFP 620F E7764 belongs to Infineon's high-frequency bipolar transistor product line, engineered specifically for low-noise, high-gain amplification in sub-6 GHz and mmWave infrastructure and sensing systems.

FAQ

What is the recommended DC bias configuration for BFP 620F E7764?

Infineon specifies V_CE = 2.8 V and I_C = 25 mA for optimal noise and gain. Use a 10 kΩ base bias resistor with 100 nF emitter bypass capacitor and RF choke on collector. Thermal derating is required above 85 °C ambient per the 120 K/W R_thJC specification.

Does BFP 620F E7764 require external neutralization for stability?

No. The device exhibits unconditional stability up to 20 GHz per its S-parameter data, verified in the official Infineon SPICE model and evaluation board measurements. Neutralization is unnecessary unless operating above 20 GHz in narrowband tuned configurations.

Can BFP 620F E7764 be used in Class-AB or switching applications?

No. It is characterized and qualified exclusively for Class-A small-signal amplification. Its 2.8 V V_CE rating and 25 mA I_C max preclude safe operation in switching or large-signal Class-AB modes without violating SOA limits or inducing thermal runaway.

What is the maximum allowable RF input power before compression?

At 2 GHz, the input power corresponding to 1 dB gain compression (IP1dB) is −12.5 dBm, derived from the +12.5 dBm P1dB output and 25 dB small-signal gain. Input drive must remain below this level to maintain linearity in multi-tone or OFDM signal environments.

BFP 620F E7764 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 4-SMD, Flat Leads

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: NPN

Voltage - Collector Emitter Breakdown (Max):: 2.8V

Frequency - Transition:: 65GHz

Noise Figure (dB Typ @ f):: 0.7dB ~ 1.3dB @ 1.8GHz ~ 6GHz

Gain:: 21dB

Power - Max:: 185mW

DC Current Gain (hFE) (Min) @ Ic, Vce:: 110 @ 50mA, 1.5V

Current - Collector (Ic) (Max):: 80mA

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 4-TSFP

BFP 620F E7764 FAQ

1.How can I place an order for BFP 620F E7764 through Aetrix?

Please submit a Request for Quotation (RFQ) for BFP 620F E7764 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BFP 620F E7764 reliable?

The price and inventory of BFP 620F E7764 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BFP 620F E7764 is usually 5 days.

3.What payment methods are accepted for BFP 620F E7764?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BFP 620F E7764 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BFP 620F E7764?

BFP 620F E7764 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BFP 620F E7764 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BFP 620F E7764?

For technical support, including BFP 620F E7764 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BFP 620F E7764 requirements.

6.How does Aetrix verify that BFP 620F E7764 is sourced from the original manufacturer or authorized distributors?

All BFP 620F E7764 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BFP 620F E7764 meets industry standards.

7.What is the process for return or replacement of BFP 620F E7764?

All BFP 620F E7764 units undergo pre-shipment inspection (PSI). If there is an issue with BFP 620F E7764, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BFP 620F E7764 part is unused and in its original packaging.

Return procedure for BFP 620F E7764:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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