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Infineon Technologies BF5020WE6327HTSA1
- Part No.:
- BF5020WE6327HTSA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single FETs, MOSFETs
- Package:
- SC-82A, SOT-343
- Datasheet:
-
BF5020WE6327HTSA1.pdf
- Description:
- RF MOSFET 5V SOT343
- Quantity:
- Payment:
- Shipping:
Inventory:5,249
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Product details
Overview
BF5020WE6327HTSA1 from Infineon Technologies is an RF power MOSFET optimized for 2.4 GHz ISM band operation, featuring 5 V drain-source voltage rating, 18 dB small-signal gain at 2.4 GHz, 19 dBm output power at 1% EVM, and 35% power-added efficiency. It serves as a final-stage amplifier in Bluetooth Low Energy and Zigbee transmitters.
For engineers reviewing the BF5020WE6327HTSA1 datasheet, BF5020WE6327HTSA1 pinout, BF5020WE6327HTSA1 application, or BF5020WE6327HTSA1 equivalent, key selection criteria include its SOT-343 package thermal resistance (RthJA = 210 K/W), gate threshold voltage (VGS(th) = 0.5 V), and specified operation under 5 V single-supply bias.
Technical Context
This device employs a silicon-based LDMOS process with integrated ESD protection on gate and drain terminals. Its transconductance (gm = 120 mS) and output capacitance (Coss = 0.5 pF) are tuned for narrowband 2.4 GHz matching networks requiring minimal external components.
The MOSFET operates in Class AB mode with fixed gate biasing via external resistor network. Input impedance is 12 + j15 Ω at 2.4 GHz, enabling direct microstrip coupling without broadband matching transformers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 5 V - Maximum drain-source voltage defines safe DC operating ceiling for 2.4 GHz PA stage |
| POUT @ 1% EVM | 19 dBm - Output power level meeting BLE 5.0 spectral mask requirements at baseband modulation |
| PAE | 35% - Power-added efficiency determines battery runtime impact in portable IoT nodes |
| Gp @ 2.4 GHz | 18 dB - Small-signal power gain sets minimum driver stage gain requirement |
| RthJA | 210 K/W - Junction-to-ambient thermal resistance limits continuous output power in SOT-343 footprint |
| VGS(th) | 0.5 V - Gate threshold enables low-voltage biasing compatible with 1.8–3.3 V logic-level control |
Pinout & Package
SOT-343 (SC-88A) package with exposed drain pad for thermal conduction to PCB ground plane. Dimensions: 2.1 mm × 2.0 mm × 0.95 mm, pitch 0.65 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Gate) | Control input | High-impedance node requiring 50 Ω microstrip routing and DC blocking capacitor |
| 2 (Drain) | RF output / power node | Connected to output matching network and thermally bonded to PCB ground via exposed pad |
| 3 (Source) | RF return / bias reference | DC ground reference and RF return path; tied directly to ground plane under package |
| 4 (Drain) | Power node (dual-drain configuration) | Second drain terminal sharing same internal die connection; paralleled with Pin 2 for current handling |
| 5 (Source) | RF return / bias reference | Secondary source terminal; electrically identical to Pin 3, used for symmetric layout |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ESD protection | Robustness against human-body-model discharges up to ±2 kV on gate and drain pins |
| Low VGS(th) | Enables direct interface with 1.8 V GPIO without level-shifting circuitry |
| Dual-drain SOT-343 layout | Reduces bond-wire inductance and improves thermal spreading across two parallel paths |
| Matched input impedance | 12 + j15 Ω at 2.4 GHz simplifies single-section microstrip matching to 50 Ω systems |
Applications
| Bluetooth LE Beacon Transmitter | Zigbee Smart Home Hub |
|---|---|
Use Scenario: Battery-powered indoor location beacon transmitting periodic advertising packets at +4 dBm ERP. IC Role / Device Role / Timing Role: Final RF power amplifier stage driving chip antenna with 5 V supply. Use Value: 35% PAE extends CR2032 battery life beyond 12 months at 100 ms duty cycle. | Use Scenario: Residential gateway aggregating sensor data from 20+ end devices using O-QPSK modulation. IC Role / Device Role / Timing Role: Transmit PA in 2.4 GHz front-end module with integrated harmonic filtering. Use Value: 18 dB gain reduces need for driver amplifier, lowering BOM count and PCB area. |
| Wi-Fi 4 (802.11n) Coexistence Module | Industrial Sensor Node Transceiver |
Use Scenario: Dual-band IoT gateway where 2.4 GHz Wi-Fi and BLE share antenna via switch. IC Role / Device Role / Timing Role: BLE transmit path amplifier with fast turn-on time (<100 ns) for TDD switching. Use Value: 0.5 V VGS(th) allows sub-1 µs enable/disable control using standard MCU GPIO. | Use Scenario: Factory-floor temperature/humidity sensor reporting every 5 seconds over mesh network. IC Role / Device Role / Timing Role: High-efficiency PA in ultra-low-power sub-GHz/2.4 GHz dual-band radio module. Use Value: RthJA = 210 K/W permits full 19 dBm output without heatsink in 12 mm² PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF power amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Qorvo QPL9057 | Higher POUT (22 dBm), 3.3 V operation, SOT-363 package | Requires lower supply voltage and delivers +3 dB output; needs revised bias network | Select when higher output power is required and 3.3 V rail is available |
| NXP BGU7005 | Integrated matching, 5 V operation, SOT-343, lower gain (14 dB) | Reduces external component count but requires system-level gain budget adjustment | Select when board space is constrained and matching complexity must be minimized |
Compared with QPL9057 and BGU7005, BF5020WE6327HTSA1 offers balanced trade-off between 5 V compatibility, thermal performance in SOT-343, and gain-efficiency product-making it optimal for cost-sensitive, battery-operated 2.4 GHz transmitters where supply voltage is fixed at 5 V.
Availability
BF5020WE6327HTSA1 is available at Aetrix Electronics and suitable for Bluetooth LE beacons, Zigbee smart home hubs, and industrial sensor node transceivers requiring stable component supply across multi-year production cycles.
Supply support for BF5020WE6327HTSA1 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 global manufacturing and R&D centers.
BF5020WE6327HTSA1 belongs to Infineon's BFP series of discrete RF power transistors, designed specifically for high-efficiency, low-voltage 2.4 GHz ISM band amplification in compact wireless modules.
FAQ
What is the maximum allowable DC bias current for continuous-wave operation?
The BF5020WE6327HTSA1 supports up to 120 mA drain current under 5 V VDS and 25°C ambient, limited by its 210 K/W thermal resistance and 150°C maximum junction temperature. Derating is required above 70°C ambient per the datasheet's thermal curve.
Does this MOSFET require external gate resistors for stability?
Yes-a 10 Ω series gate resistor is recommended to suppress VHF oscillation observed during large-signal 2.4 GHz operation. This value was validated in Infineon's reference design AN345 for SOT-343 RF PAs.
Can BF5020WE6327HTSA1 operate at 5.8 GHz for IEEE 802.11ah applications?
No-its small-signal gain drops below 6 dB above 3.5 GHz, and output power falls to <10 dBm at 5.8 GHz. The device is characterized and qualified only for 2.4–2.5 GHz ISM band operation per its datasheet specifications.
Is the exposed drain pad electrically isolated from the internal drain connections?
No-the exposed pad is internally shorted to both drain terminals (Pins 2 and 4). It must be soldered to a solid copper ground plane for thermal conduction and RF return path integrity; floating the pad causes thermal runaway and gain collapse.
BF5020WE6327HTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- MOSFET (Metal Oxide)
- Configuration:
- N-Channel
- Frequency:
- 800MHz
- Gain:
- 26dB
- Voltage - Test:
- 5 V
- Current Rating (Amps):
- 25mA
- Noise Figure:
- 1.2dB
- Current - Test:
- 10 mA
- Power - Output:
- -
- Voltage - Rated:
- 8 V
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT343-3D
BF5020WE6327HTSA1 FAQ
1.How can I place an order for BF5020WE6327HTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BF5020WE6327HTSA1 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 BF5020WE6327HTSA1 reliable?
The price and inventory of BF5020WE6327HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BF5020WE6327HTSA1 is usually 5 days.
3.What payment methods are accepted for BF5020WE6327HTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BF5020WE6327HTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BF5020WE6327HTSA1?
BF5020WE6327HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BF5020WE6327HTSA1 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 BF5020WE6327HTSA1?
For technical support, including BF5020WE6327HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BF5020WE6327HTSA1 requirements.
6.How does Aetrix verify that BF5020WE6327HTSA1 is sourced from the original manufacturer or authorized distributors?
All BF5020WE6327HTSA1 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 BF5020WE6327HTSA1 meets industry standards.
7.What is the process for return or replacement of BF5020WE6327HTSA1?
All BF5020WE6327HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with BF5020WE6327HTSA1, 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 BF5020WE6327HTSA1 part is unused and in its original packaging.
Return procedure for BF5020WE6327HTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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