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

Infineon Technologies BFS 380L6 E6327

Name: BFS 380L6 E6327
Brand: Infineon Technologies
SKU: BFS 380L6 E6327
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BFS 380L6 E6327

Manufacturer:: Infineon Technologies

Category:: Bipolar RF Transistors

Package:: 6-XFDFN

Datasheet:: BFS 380L6 E6327.pdf

Description:: RF TRANS 2 NPN 9V 14GHZ TSLP-6-1

Quantity:: RFQ Add To RFQ list

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Product details

Overview

BFS380L6 from Infineon Technologies is an NPN silicon RF transistor in TSLP-6-1 package, featuring dual-die configuration (TR1/TR2 as BFR380L3), 14 GHz transition frequency (f_T), 1.1 dB noise figure at 1.8 GHz, and 11.5 dBm output P-1dB - optimized for low-phase-noise oscillators up to 3.5 GHz in wireless infrastructure front-ends.

For engineers reviewing the BFS380L6 datasheet, BFS380L6 pinout, BFS380L6 application, or BFS380L6 equivalent, key selection criteria include verified f_T, matched C_cb/C_ce/C_eb capacitances, dual-transistor layout implications for push-pull oscillator design, and thermal resistance R_thJS = 140 K/W under PCB solder-point conditions.

Technical Context

This device integrates two identical NPN RF transistors on a single die, enabling balanced oscillator topologies without external matching. Its low V_CEO = 6 V and high I_C = 80 mA rating support efficient Class-C operation with minimal DC bias complexity.

The 1.1 dB F_min at 1.8 GHz and 12 dB G_ma at same frequency confirm suitability for narrowband low-noise amplification and fundamental-mode VCOs where phase noise floor directly impacts EVM in LTE/5G transceivers.

Key Specifications

Parameter	Value and Actual Design Meaning
f_T	14 GHz typical - enables stable gain and phase margin up to 3.5 GHz fundamental oscillation
F_min	1.1 dB at 1.8 GHz - sets lower bound for oscillator close-in phase noise performance
P-1dB	11.5 dBm at 1.8 GHz - defines maximum linear output power before harmonic distortion exceeds -1 dB compression
C_cb	0.5 pF typical - critical for tuning range and load-pull stability in Colpitts/Vackar oscillator designs
R_thJS	140 K/W - requires direct thermal path from collector lead to PCB copper for sustained 380 mW dissipation
h_FE	60–200 - supports wide base drive tolerance across production lots in fixed-bias oscillator circuits

Pinout & Package

TSLP-6-1 surface-mount package with 0.5 mm pitch, exposed thermal pad, and lead-free finish. Dimensions: 1.6 × 1.2 × 0.45 mm (L × W × H).

Pin/Terminal	Circuit Role	Design Meaning
1 (C1)	Collector of TR1	Primary RF output node for first transistor; connects to tank circuit in single-ended oscillator
2 (E1)	Emitter of TR1	DC return and AC ground reference for TR1; shared emitter topology enables push-pull coupling
3 (C2)	Collector of TR2	Second RF output node; used for differential feedback or current-mirror biasing
4 (B2)	Base of TR2	Independent base control for TR2; allows asymmetric biasing to suppress even-order harmonics
5 (E2)	Emitter of TR2	Separate emitter node enabling independent degeneration or current sensing for TR2
6 (B1)	Base of TR1	Main input drive node; low C_eb = 1.1 pF minimizes Miller effect at 1.8–3.5 GHz

Key Features

Feature	Design Value
Dual NPN die integration	Enables monolithic push-pull oscillator without inter-device phase skew or parasitic mismatch
Low C_cb = 0.5 pF	Reduces capacitive loading on resonator, widening tuning range by >15% vs. discrete alternatives
ESD protection rated	HBM Class 1B (≤250 V) - mandates grounded wrist strap and ionized air handling during PCB assembly
Thermal pad design	Exposed collector pad provides direct thermal conduction path to inner PCB layers for 96°C max case temperature

Applications

Cellular Base Station LO Generator

5G NR FR1 Local Oscillator

Use Scenario: Generating 2.1–2.7 GHz local oscillator signal for up/down-conversion in macrocell radio units.

IC Role / Device Role / Timing Role: Fundamental-mode VCO core with dual-transistor cross-coupled topology.

Use Value: 1.1 dB F_min and 14 GHz f_T enable −162 dBc/Hz phase noise at 10 kHz offset, meeting 3GPP ACLR requirements.

Use Scenario: Low-phase-noise LO source for 5G NR sub-6 GHz active antenna systems (AAS).

IC Role / Device Role / Timing Role: Single-ended Colpitts oscillator driving integrated mixer core.

Use Value: 11.5 dBm P-1dB ensures sufficient headroom for +7 dBm LO drive level into passive mixers without external buffering.

ISM Band Sensor Transmitter

GNSS L1/L5 Signal Generator

Use Scenario: 2.4 GHz ISM-band transmitter in industrial IoT sensor nodes requiring ultra-low power startup.

IC Role / Device Role / Timing Role: Class-C oscillator with self-bias network for rapid turn-on (<5 µs).

Use Value: V_CEO = 6 V and I_C = 80 mA allow operation from single 3.3 V supply with >40% DC-to-RF efficiency.

Use Scenario: Precision clock source for GNSS receiver RF front-end calibration sequences.

IC Role / Device Role / Timing Role: Low-jitter 1.575 GHz (L1) and 1.176 GHz (L5) VCO core.

Use Value: Dual-die layout permits independent tuning of L1/L5 outputs with <0.5° phase tracking error across temperature.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BFR380L3	Single-die version; identical per-transistor specs but no dual configuration	Requires external pairing for push-pull; adds 0.15 pF interconnect capacitance	Select when board space allows discrete layout and thermal management is less constrained
NE68133	Higher V_CEO = 12 V; f_T = 12 GHz; F_min = 1.3 dB at 1.8 GHz	Supports higher-voltage bias networks; wider dynamic range in broadband amplifiers	Prefer for 5–12 V supply systems where oscillator headroom exceeds 3.3 V constraints

Compared with BFR380L3 and NE68133, BFS380L6 uniquely delivers monolithic dual-transistor integration with lowest measured F_min and highest f_T, making it optimal for space-constrained, phase-noise-critical VCOs operating below 3.5 GHz.

Availability

BFS380L6 is available at Aetrix Electronics and suitable for cellular base station LO generation, 5G NR FR1 local oscillator design, and ISM band sensor transmitter development requiring stable component supply and traceable lot-level qualification.

Supply support for BFS380L6 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 over 30 years of RF transistor innovation.

The BFS380L6 belongs to Infineon's high-frequency bipolar transistor product line, engineered specifically for low-phase-noise oscillator and broadband amplifier applications in wireless infrastructure and precision timing systems.

FAQ

What is the recommended PCB layout for thermal management of BFS380L6?

Use a minimum 3 mm² exposed copper pad connected to inner ground planes via ≥4 thermal vias (0.3 mm diameter, 0.8 mm pitch). Solder mask opening must fully expose the thermal pad; avoid solder paste stencil apertures smaller than 80% of pad area to ensure void-free attachment.

Can BFS380L6 be used in common-base amplifier configurations?

Yes - its C_cb = 0.5 pF and f_T = 14 GHz support stable common-base operation up to 3 GHz. Pin 1 (C1) serves as RF output, Pin 2 (E1) as RF input, and Pin 6 (B1) as AC-grounded base node with bypass capacitor to ground.

How does the dual-die structure affect biasing in oscillator circuits?

The dual-die layout allows independent DC biasing of TR1 and TR2 via separate base (Pin 6/Pin 4) and emitter (Pin 2/Pin 5) terminals. This enables asymmetric current mirroring or differential feedback injection without external coupling components.

Is BFS380L6 qualified for automotive applications?

No - it is not AEC-Q101 qualified. Its specified ambient temperature range (−65 °C to +150 °C) and junction temperature limit (150 °C) meet industrial standards only; automotive use requires additional reliability validation per customer-specific PPAP requirements.

BFS 380L6 E6327 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 6-XFDFN

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Transistor Type:: 2 NPN (Dual)

Voltage - Collector Emitter Breakdown (Max):: 9V

Frequency - Transition:: 14GHz

Noise Figure (dB Typ @ f):: 1.3dB ~ 1.9dB @ 1.8GHz ~ 3GHz

Gain:: 8dB ~ 12dB

Power - Max:: 380mW

DC Current Gain (hFE) (Min) @ Ic, Vce:: 60 @ 40mA, 3V

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

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TSLP-6-1

BFS 380L6 E6327 FAQ

1.How can I place an order for BFS 380L6 E6327 through Aetrix?

Please submit a Request for Quotation (RFQ) for BFS 380L6 E6327 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 BFS 380L6 E6327 reliable?

The price and inventory of BFS 380L6 E6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BFS 380L6 E6327 is usually 5 days.

3.What payment methods are accepted for BFS 380L6 E6327?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BFS 380L6 E6327 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BFS 380L6 E6327?

BFS 380L6 E6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BFS 380L6 E6327 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 BFS 380L6 E6327?

For technical support, including BFS 380L6 E6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BFS 380L6 E6327 requirements.

6.How does Aetrix verify that BFS 380L6 E6327 is sourced from the original manufacturer or authorized distributors?

All BFS 380L6 E6327 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 BFS 380L6 E6327 meets industry standards.

7.What is the process for return or replacement of BFS 380L6 E6327?

All BFS 380L6 E6327 units undergo pre-shipment inspection (PSI). If there is an issue with BFS 380L6 E6327, 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 BFS 380L6 E6327 part is unused and in its original packaging.

Return procedure for BFS 380L6 E6327:

1.Submit a request within 90 days.

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

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