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Infineon Technologies BF 1005SR E6327
- Part No.:
- BF 1005SR E6327
- Manufacturer:
- Infineon Technologies
- Category:
- Single FETs, MOSFETs
- Package:
- SOT-143R
- Datasheet:
-
BF 1005SR E6327.pdf
- Description:
- RF MOSFET 5V SOT143R
- Quantity:
- Payment:
- Shipping:
Inventory:8,320
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Product details
Overview
BF1005SR E6327 from Infineon Technologies is a silicon N-channel tetrode MOSFET designed for low-noise, high-gain RF input stages up to 1 GHz. It features integrated biasing (G1/G2), operates at 5 V, delivers 22 dB typical power gain at 800 MHz, exhibits 1.6–2.1 dB noise figure, and is qualified per AEC-Q101 for automotive front-end modules.
For engineers reviewing the BF1005SR E6327 datasheet, BF1005SR E6327 pinout, BF1005SR E6327 application, or BF1005SR E6327 equivalent, key selection criteria include its dual-gate structure for AGC control, self-biased operating current (8–16 mA), SOT143R package thermal resistance (≤370 K/W), and verified 40–50 dB gain control range at 800 MHz.
Technical Context
This tetrode MOSFET uses separate gate terminals (G1 for RF input impedance control and AGC interface, G2 for channel biasing) to decouple signal path and gain control functions. Its internal bias network enables stable DC operation without external resistors while maintaining high transconductance (26–30 mS) and low output capacitance (1.3 pF typ).
The device supports RF amplification in self-biased mode with VDS = 5 V and VG2S = 4 V, delivering 20–22 dB power gain and <2.1 dB noise figure at 800 MHz - critical for UHF receiver front-ends where linearity, gain stability, and noise performance are co-constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS max | 8 V - sets absolute maximum supply headroom for 5 V RF stages |
| ID continuous | 25 mA - defines safe DC current limit under thermal derating |
| gfs | 26–30 mS - determines small-signal voltage-to-current conversion efficiency |
| Cg1ss | 2.4–2.7 pF @ 1 MHz - impacts input matching network design at UHF |
| F (noise figure) | 1.6–2.1 dB @ 800 MHz - directly limits receiver sensitivity in narrowband systems |
| ∆Gp | 40–50 dB - enables wide dynamic range AGC without cascaded stages |
| Ptot | 200 mW @ TS ≤ 76 °C - constrains PCB copper area and thermal relief layout |
Pinout & Package
SOT143R is a 4-pin plastic surface-mount package with gull-wing leads, 1.3 mm × 1.7 mm body size, and 0.95 mm pitch. Pin 1 is Source (S), Pin 2 is Drain (D), Pin 3 is Gate 2 (G2), Pin 4 is Gate 1 (G1). The reverse-bar marking identifies orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S) | Source terminal | Common reference node for both gates; connects to RF ground plane |
| 2 (D) | Drain terminal | RF output node; requires impedance-matched trace to next stage |
| 3 (G2) | Bias gate | DC control input for setting operating point and gain level |
| 4 (G1) | RF input gate | High-impedance RF signal entry; isolated from G2 for AGC decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Dual-gate tetrode architecture | Enables independent RF signal injection (G1) and gain control (G2) without external bias components |
| AEC-Q101 qualification | Validated for automotive infotainment and telematics RF front-ends requiring extended temperature and reliability compliance |
| Integrated biasing network | Eliminates need for external gate resistors, reducing BOM count and board space in compact receivers |
| Low 1.6–2.1 dB noise figure | Preserves SNR in weak-signal reception scenarios such as GPS L1 or DAB band amplifiers |
| 40–50 dB gain control range | Supports single-stage AGC implementation across >60 dB input dynamic range |
Applications
| GPS L1 Band LNA | DAB Receiver Front-End |
|---|---|
Use Scenario: Amplifying weak 1.575 GHz GPS signals in automotive navigation units with variable satellite visibility. IC Role / Device Role / Timing Role: Low-noise amplifier (LNA) with integrated AGC via G2 to maintain consistent output despite fading multipath conditions. Use Value: 1.6 dB typical noise figure preserves C/N0 margin; 40 dB gain control compensates for >50 dB path loss variation without clipping. | Use Scenario: Boosting 174–240 MHz digital audio broadcast signals in portable car radios under varying antenna coupling. IC Role / Device Role / Timing Role: Self-biased RF amplifier with G2-controlled gain staging to prevent ADC saturation during strong local transmitter exposure. Use Value: 22 dB typical power gain at 200 MHz ensures sufficient signal level for demodulation; SOT143R footprint fits tight tuner module layouts. |
| UHF RFID Reader Input Stage | Automotive Keyless Entry Receiver |
Use Scenario: Receiving 860–960 MHz backscatter signals from passive RFID tags in warehouse access systems. IC Role / Device Role / Timing Role: First-stage LNA with G1 as RF input and G2 as programmable gain control linked to microcontroller DAC. Use Value: 30 mS transconductance enables high open-loop gain; low 2.7 pF Cg1ss simplifies 900 MHz input matching with minimal parasitic sensitivity. | Use Scenario: Amplifying 315/433 MHz remote keyless entry (RKE) signals in vehicle body control modules exposed to engine bay thermal cycling. IC Role / Device Role / Timing Role: AEC-Q101-qualified RF amplifier providing stable gain over −40 to +125 °C ambient. Use Value: ≤370 K/W channel-to-soldering-point thermal resistance allows reliable operation at 76 °C case temperature without heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-gate RF amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BFP181RH6327 | Same SOT143R package, but higher 25–30 dB gain at 900 MHz and 1.4 dB noise figure | Better suited for 900 MHz ISM band systems requiring tighter noise margin | Select when target frequency exceeds 850 MHz and lower noise is prioritized over cost |
| BF1105SR E6327 | Higher VDS rating (12 V), wider gain control range (55 dB), but larger SOT343 package | Supports higher-voltage receiver architectures and wider dynamic range AGC loops | Choose when system supply exceeds 5 V or >45 dB control range is required |
Compared with BFP181RH6327 and BF1105SR E6327, the BF1005SR E6327 offers optimal balance of 800 MHz performance, thermal efficiency in SOT143R, and AEC-Q101 compliance - making it the preferred choice for cost-sensitive, thermally constrained automotive UHF front-ends.
Availability
BF1005SR E6327 is available at Aetrix Electronics and suitable for GPS L1 band LNAs, DAB receivers, UHF RFID readers, and automotive keyless entry receivers requiring stable component supply across production lifecycles.
Supply support for BF1005SR E6327 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, automotive, and RF solutions, with global R&D and manufacturing infrastructure.
The BF1005SR belongs to Infineon's RF transistor product line, engineered specifically for high-linearity, low-noise amplification in automotive and consumer wireless receivers operating below 1 GHz.
FAQ
What is the recommended DC bias configuration for BF1005SR E6327 in self-biased operation?
Apply 5 V between Drain and Source, set Gate 2 (Pin 3) to 4 V for nominal 13 mA operating current, and leave Gate 1 (Pin 4) AC-coupled to RF input. Do not apply external DC voltage to Gate 1 during active operation, as specified in the datasheet to avoid instability.
Can BF1005SR E6327 be used in 900 MHz applications?
Yes - its power gain remains ≥20 dB and noise figure stays ≤2.3 dB up to 900 MHz per characterization curves. However, gain drops to ~18 dB and noise rises to ~2.5 dB at 900 MHz, so verify link budget margins for critical 900 MHz designs.
Is the SOT143R package lead-free and RoHS-compliant?
Yes - BF1005SR E6327 uses a Pb-free (RoHS-compliant) SOT143R package, confirmed by Infineon's material declaration and packaging documentation dated 2007-04-20.
How does the dual-gate structure improve AGC performance compared to single-gate MOSFETs?
The separate G1 (RF input) and G2 (bias) terminals isolate signal path from control voltage, eliminating gain-dependent input impedance shifts. This enables stable 50 Ω input matching across the full 40–50 dB gain control range - a capability unattainable with single-gate devices.
BF 1005SR E6327 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SOT-143R
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- N-Channel
- Frequency:
- 800MHz
- Gain:
- 22dB
- Voltage - Test:
- 5 V
- Current Rating (Amps):
- 25mA
- Noise Figure:
- 1.6dB
- Current - Test:
- -
- Power - Output:
- -
- Voltage - Rated:
- 8 V
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT-143R-3D
BF 1005SR E6327 FAQ
1.How can I place an order for BF 1005SR E6327 through Aetrix?
Please submit a Request for Quotation (RFQ) for BF 1005SR 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 BF 1005SR E6327 reliable?
The price and inventory of BF 1005SR E6327 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BF 1005SR E6327 is usually 5 days.
3.What payment methods are accepted for BF 1005SR E6327?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BF 1005SR E6327 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BF 1005SR E6327?
BF 1005SR E6327 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BF 1005SR 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 BF 1005SR E6327?
For technical support, including BF 1005SR E6327 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BF 1005SR E6327 requirements.
6.How does Aetrix verify that BF 1005SR E6327 is sourced from the original manufacturer or authorized distributors?
All BF 1005SR 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 BF 1005SR E6327 meets industry standards.
7.What is the process for return or replacement of BF 1005SR E6327?
All BF 1005SR E6327 units undergo pre-shipment inspection (PSI). If there is an issue with BF 1005SR 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 BF 1005SR E6327 part is unused and in its original packaging.
Return procedure for BF 1005SR E6327:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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