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Infineon Technologies BFP 405 H6433
- Part No.:
- BFP 405 H6433
- Manufacturer:
- Infineon Technologies
- Category:
- Bipolar RF Transistors
- Package:
- SC-82A, SOT-343
- Datasheet:
-
BFP 405 H6433.pdf
- Description:
- RF TRANS NPN 5V 25GHZ SOT343
- Quantity:
- Payment:
- Shipping:
Inventory:7,560
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Product details
Overview
BFP405 H6433 from Infineon Technologies is a low-noise silicon bipolar RF transistor in SOT343 package, designed for oscillator and amplifier stages up to 12 GHz. It delivers NFmin = 1.25 dB at 1.8 GHz, Gms = 23 dB at 1.8 GHz, and fT = 25 GHz (typ), with VCEO = 4.5 V and IC = 25 mA max - deployed in GPS L1-band front-ends and low-power RF synthesizers.
For engineers reviewing the BFP405 H6433 datasheet, BFP405 H6433 pinout, BFP405 H6433 application, or BFP405 H6433 equivalent, key selection criteria include noise figure vs. bias point, S-parameter validation at 1.8–2.4 GHz, thermal resistance RthJS = 530 K/W, and AEC-Q101 qualification status for automotive RF modules.
Technical Context
This NPN RF transistor operates in common-emitter configuration with emitter-grounded layout for optimal high-frequency stability. Its fT of 25 GHz (typ) and Ccb = 0.05 pF (typ) support wideband small-signal amplification up to 6 GHz, while ZSopt tracking across 0.9–6 GHz enables precise noise-matched design in LNA stages.
The device uses a monolithic silicon epitaxial structure with visible-leads SOT343 packaging optimized for RF PCB layout. Thermal performance is defined by junction-to-solder-point resistance (RthJS = 530 K/W), requiring careful thermal pad design on FR4 substrates for continuous 5 mA operation at TA = 85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| NFmin | 1.25 dB at 1.8 GHz, IC = 2 mA - sets minimum achievable noise floor in GPS/GNSS LNA designs |
| Gms | 23 dB at 1.8 GHz, ZS = ZSopt - maximum stable power gain for oscillator load-pull tuning |
| fT | 25 GHz (typ), IC = 10 mA, VCE = 3 V - defines upper frequency limit for small-signal amplification |
| Ccb | 0.05 pF (typ), VCB = 2 V - limits Miller effect in broadband amplifier feedback networks |
| VCEO | 4.5 V at TA = 25 °C - constrains supply headroom in 3.3 V RF bias rails |
| RthJS | 530 K/W - requires ≥20 mm² copper thermal pad for 75 mW dissipation at TJ ≤ 150 °C |
| IP3 | 15 dBm at 1.8 GHz - determines linearity margin for two-tone LTE/WiFi coexistence testing |
Pinout & Package
SOT343 package: 4-pin surface-mount plastic package with visible leads, RoHS/halogen-free compliant, footprint compatible with JEDEC MO-193AA. Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector, Pin 4 = Emitter (dual-emitter configuration).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Base | RF input node; requires DC blocking and impedance matching network for ZSopt alignment |
| 2 (E) | Emitter (primary) | AC ground reference; connected to RF ground plane via shortest possible path |
| 3 (C) | Collector | RF output node; biased through RFC/DC feed; matched to 50 Ω for |S21|² = 18.5 dB |
| 4 (E) | Emitter (secondary) | Thermal and RF grounding redundancy; must be tied to same ground as Pin 2 |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive RF modules including infotainment tuners and telematics receivers |
| ZSopt tracking over 0.9–6 GHz | Enables single-stage LNA design without re-tuning across GPS, DAB, and cellular bands |
| SPICE GP model with package parasitics | Includes verified Ceb/Ccb/Cce and lead inductance for accurate ADS/MWO simulation up to 6 GHz |
| Dual-emitter thermal path | Reduces local junction temperature rise by ~12% vs. single-emitter SOT343 transistors at 5 mA |
Applications
| GPS L1 Band LNA | ISM Band Oscillator |
|---|---|
Use Scenario: Low-noise amplification of 1.575 GHz GPS signals in portable navigation devices with size-constrained PCBs. IC Role / Device Role / Timing Role: First-stage LNA with ZS = ZSopt = 50 + j10 Ω at 1.575 GHz to minimize system noise figure. Use Value: NFmin = 1.25 dB enables >2 dB lower system noise figure than competing SOT343 transistors at same bias. | Use Scenario: Fundamental-mode 2.4 GHz oscillator in Bluetooth LE beacon modules using Colpitts topology. IC Role / Device Role / Timing Role: Active device sustaining oscillation with Gms = 23 dB margin against load variation. Use Value: High fT (25 GHz) ensures robust start-up and phase noise < −110 dBc/Hz @ 100 kHz offset. |
| Automotive AM/FM Tuner Front-End | UWB Impulse Radio Receiver |
Use Scenario: Dual-band (76–108 MHz FM, 526–1611 kHz AM) RF preamp in automotive infotainment head units. IC Role / Device Role / Timing Role: Common-emitter amplifier with broadband matching network covering 0.5–100 MHz. Use Value: Ccb = 0.05 pF minimizes Miller capacitance shift across AM/FM bands, preserving gain flatness. | Use Scenario: 3.1–4.8 GHz pulse-amplifier stage in IEEE 802.15.4a UWB receiver front-end. IC Role / Device Role / Timing Role: Wideband small-signal amplifier with 50 Ω input/output match for time-domain pulse fidelity. Use Value: IP3 = 15 dBm ensures linear amplification of sub-nanosecond pulses without intermodulation distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise RF transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BFP640FESD | fT = 45 GHz (typ), NFmin = 0.95 dB at 1.8 GHz, Ccb = 0.035 pF - higher speed, lower noise, smaller geometry | Requires tighter layout control due to 0.25 mm pitch; not AEC-Q101 qualified | Select for non-automotive 5G NR FR1 LNA where noise floor is critical and thermal budget allows |
| MRF581 | fT = 12 GHz (typ), NFmin = 1.4 dB at 1.8 GHz, VCEO = 12 V - higher voltage tolerance, lower gain | Supports 5–12 V bias rails; suited for industrial HF/VHF amplifiers beyond 2.4 GHz | Select when operating above 5 V supply or requiring extended breakdown margin in base station repeaters |
Compared with BFP405 H6433, BFP640FESD offers superior noise and bandwidth but lacks automotive qualification and demands finer layout; MRF581 trades noise and speed for higher voltage capability and broader legacy band support.
Availability
BFP405 H6433 is available at Aetrix Electronics and suitable for GPS front-ends, Bluetooth oscillators, and automotive AM/FM tuners requiring stable component supply across multi-year production cycles.
Supply support for BFP405 H6433 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 electronics, with global manufacturing and quality certification to IATF 16949.
The BFP405 belongs to Infineon's BFP family of silicon bipolar RF transistors engineered for low-noise, high-frequency signal generation and amplification in cost-sensitive consumer and automotive wireless systems.
FAQ
What is the recommended bias condition for minimum noise figure?
For NFmin = 1.25 dB at 1.8 GHz, bias at IC = 2 mA and VCE = 2 V with source impedance ZS = ZSopt = 50 + j10 Ω. This condition is validated per datasheet Figure 7 and requires external matching network synthesis using measured S-parameters.
Is the BFP405 H6433 pinout compatible with standard SOT343 footprints?
Yes - it uses JEDEC MO-193AA-compliant SOT343 packaging with 0.65 mm lead pitch and standardized pin 1 marking. Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector, Pin 4 = Emitter, matching industry-standard layout templates.
Does this part support pulsed RF operation?
Yes - permissible pulse load curves (Figure 4) confirm Ptotmax/PtotDC = 0.5 at tp = 10⁻⁴ s with D = 0. Pulse operation must maintain TJ ≤ 150 °C using RthJS = 530 K/W and appropriate duty-cycle derating.
Where can I obtain the verified SPICE model for circuit simulation?
The official BFP405 SPICE GP model - including package parasitics and noise parameters - is hosted on Infineon's RF Models portal (www.infineon.com/rf.models) in ADS and MWO formats, updated as of 2023-06-15.
BFP 405 H6433 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Voltage - Collector Emitter Breakdown (Max):
- 5V
- Frequency - Transition:
- 25GHz
- Noise Figure (dB Typ @ f):
- 1.25dB @ 1.8GHz
- Gain:
- 23dB
- Power - Max:
- 75mW
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 60 @ 5mA, 4V
- Current - Collector (Ic) (Max):
- 25mA
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT343-3D
BFP 405 H6433 FAQ
1.How can I place an order for BFP 405 H6433 through Aetrix?
Please submit a Request for Quotation (RFQ) for BFP 405 H6433 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 405 H6433 reliable?
The price and inventory of BFP 405 H6433 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BFP 405 H6433 is usually 5 days.
3.What payment methods are accepted for BFP 405 H6433?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BFP 405 H6433 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BFP 405 H6433?
BFP 405 H6433 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BFP 405 H6433 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 405 H6433?
For technical support, including BFP 405 H6433 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BFP 405 H6433 requirements.
6.How does Aetrix verify that BFP 405 H6433 is sourced from the original manufacturer or authorized distributors?
All BFP 405 H6433 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 405 H6433 meets industry standards.
7.What is the process for return or replacement of BFP 405 H6433?
All BFP 405 H6433 units undergo pre-shipment inspection (PSI). If there is an issue with BFP 405 H6433, 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 405 H6433 part is unused and in its original packaging.
Return procedure for BFP 405 H6433:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BFP 405 H6433 Tags
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BFR182WH6327XTSA1
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BFR92PE6327HTSA1
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BFR360FH6327XTSA1
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BFR460L3E6327XTMA1
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BFP840FESDH6327XTSA1
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BFU520AR
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BFS483H6327XTSA1
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