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NXP Semiconductors MRF300A-27MHZ
- Part No.:
- MRF300A-27MHZ
- Manufacturer:
- NXP Semiconductors
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
MRF300A-27MHZ.pdf
- Description:
- MRF300AN REF BRD 27MHZ 330W
- Quantity:
- Payment:
- Shipping:
Inventory:2,973
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Product details
Overview
MRF300A-27MHZ from NXP Semiconductors is a 300 W CW RF power LDMOS transistor optimized for 27 MHz industrial and broadcast amplifiers, operating at 50 Vdc with 330 W output power, 27.4 dB power gain, and 80.0% drain efficiency in its validated reference circuit.
For engineers reviewing the MRF300A-27MHZ datasheet, MRF300A-27MHZ pinout, MRF300A-27MHZ application, or MRF300A-27MHZ equivalent, this part delivers ruggedized HF/VHF RF power amplification with verified load mismatch tolerance (>65:1 VSWR), integrated ESD protection, and linear operation capability across ISM, plasma, and broadcast systems.
Technical Context
This device is an enhancement-mode lateral N-channel LDMOS transistor designed for high-ruggedness, wideband (1.8–250 MHz) RF power amplification. It features mirror-pinout variants (A/B) enabling push-pull configurations and operates with 50 Vdc drain supply and 100 mA quiescent drain current.
Its thermal design supports 76°C case temperature at 300 W CW, with junction-to-case thermal resistance of 0.55°C/W. The device is characterized for linear Class AB operation and includes gate-source ESD protection rated to 2500 V HBM and 1200 V CDM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Frequency Range | Validated at 27 MHz in NXP reference circuit; rated 1.8–250 MHz wideband operation. |
| Output Power (CW) | 330 W at 27 MHz, 50 Vdc, 100 mA IDQ - enables high-efficiency single-stage RF amplifiers. |
| Power Gain | 27.4 dB at 27 MHz - reduces driver stage complexity and improves system linearity margin. |
| Drain Efficiency | 80.0% at 27 MHz - minimizes thermal load and heatsink requirements in continuous-duty systems. |
| VSWR Tolerance | >65:1 at 27 MHz under 3 dB overdrive pulse conditions - ensures robust operation into reactive loads. |
| ESD Rating | HBM Class 2 (2500 V), CDM Class C3 (1200 V) - protects against handling and board-level transients. |
| Junction Temp. Max | +175°C - supports high-reliability operation in sealed or convection-limited enclosures. |
Pinout & Package
TO-247-3L package with exposed backside serving as source terminal. Pin 1: Gate, Pin 2: Source, Pin 3: Drain.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Gate) | Control electrode | Accepts DC bias and RF drive; requires impedance-matched input network per 27 MHz Zsource = 32.13 + j11.22 Ω. |
| Pin 2 (Source) | Reference node / current return | Internally connected to exposed metal backside; must be thermally and electrically bonded to heatsink/ground plane. |
| Pin 3 (Drain) | RF power output node | Delivers 330 W CW at 50 Vdc; requires output matching per Zload = 4.47 + j0.45 Ω at 27 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Mirror-pinout variants (A/B) | Enables direct push-pull or two-up amplifier layouts without layout inversion or signal routing changes. |
| Integrated ESD protection | Eliminates need for external gate protection diodes in most industrial PCB environments. |
| Ruggedness validation | Passes >65:1 VSWR stress test at 27 MHz with no degradation - critical for plasma and broadcast antenna mismatches. |
| Linear application suitability | Characterized for Class AB operation with low distortion; supports AM, FM, and pulsed RF waveforms. |
| 15-year product longevity | Guaranteed supply continuity for long-lifecycle industrial and medical equipment programs. |
Applications
| Plasma Etching Systems | Laser RF Excitation |
|---|---|
|
Use Scenario: High-power RF energy delivery to plasma chambers for semiconductor wafer processing. IC Role / Device Role / Timing Role: Final-stage RF power amplifier driving 27 MHz matching networks. Use Value: 330 W CW output and >65:1 VSWR tolerance ensure stable plasma ignition and process repeatability despite chamber impedance shifts. |
Use Scenario: RF excitation of CO₂ or excimer laser tubes requiring precise 27 MHz carrier stability. IC Role / Device Role / Timing Role: Linear RF power stage delivering clean, low-distortion 27 MHz drive. Use Value: 80.0% drain efficiency reduces thermal drift in sealed laser enclosures, maintaining wavelength stability. |
| ISM Band Broadcast Transmitters | Industrial Heating Systems |
|
Use Scenario: Medium-wave HF broadcast amplifiers operating in 27 MHz ISM band for short-range communication. IC Role / Device Role / Timing Role: High-efficiency final RF amplifier in solid-state transmitter architecture. Use Value: Validated 27 MHz reference circuit enables rapid prototyping with known impedance match (Zload = 4.47 + j0.45 Ω). |
Use Scenario: RF induction heating of metals and composites using 27 MHz resonant tank circuits. IC Role / Device Role / Timing Role: Primary power switch in Class AB or Class C resonant amplifier. Use Value: 175°C max junction temperature and rugged construction support continuous 24/7 operation in factory-floor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF power amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MRF300BN-27MHZ | Mirror-pinout version: Pin 1 = Drain, Pin 2 = Source, Pin 3 = Gate - requires PCB layout revision. | Same RF performance at 27 MHz but inverted pin assignment; used when push-pull symmetry demands opposite orientation. | Select MRF300BN-27MHZ only when redesigning for mirrored gate/drain placement; not drop-in compatible. |
| MRFE6VP6300H | Higher frequency range (up to 600 MHz), 300 W at 27 MHz, but larger TO-272-2 package and different thermal interface. | Designed for multi-band broadcast; lacks 27 MHz-specific reference circuit validation and ruggedness test data at that frequency. | Choose MRFE6VP6300H only if future frequency expansion beyond 250 MHz is required; adds layout and thermal redesign effort. |
Compared with MRF300A-27MHZ, MRF300BN-27MHZ offers identical RF specs but mandates PCB rework for pinout reversal, while MRFE6VP6300H trades 27 MHz optimization for broader bandwidth at the cost of proven ruggedness and reference design support.
Availability
MRF300A-27MHZ is available at Aetrix Electronics and suitable for plasma etching, RF laser excitation, and ISM broadcast transmitters requiring stable component supply, long-term lifecycle assurance, and validated 27 MHz reference designs.
Supply support for MRF300A-27MHZ 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
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in RF power technologies.
The MRF300A-27MHZ belongs to NXP's wideband RF LDMOS transistor family, engineered specifically for rugged, high-efficiency HF/VHF amplification in industrial, scientific, medical, and broadcast infrastructure.
FAQ
What is the validated output power of MRF300A-27MHZ at 27 MHz?
MRF300A-27MHZ delivers 330 W CW output power at 27 MHz when operated at 50 Vdc drain voltage and 100 mA quiescent drain current in the NXP-qualified reference circuit (documented in Table 11). This result was measured under standard 50 Ω system conditions with specified input matching.
Does MRF300A-27MHZ require external gate protection diodes?
No - MRF300A-27MHZ integrates ESD protection rated to 2500 V HBM and 1200 V CDM, eliminating the need for external gate protection diodes in typical industrial PCB handling and operation environments per NXP's characterization.
Is there a published reference circuit for MRF300A-27MHZ?
Yes - NXP provides a fully documented 27 MHz reference circuit for MRF300A-27MHZ (order number MRF300AN-27MHZ), including schematic, bill of materials, PCB layout, and measured performance data (Table 11 and Figures 9–12 in the datasheet).
What is the maximum safe operating junction temperature for MRF300A-27MHZ?
The maximum operating junction temperature for MRF300A-27MHZ is +175°C, as defined in Table 1 (Operating Junction Temperature Range). This rating enables reliable continuous operation in thermally constrained enclosures when paired with appropriate heatsinking.
How does MRF300A-27MHZ handle load mismatch at 27 MHz?
MRF300A-27MHZ has been tested and confirmed to withstand >65:1 VSWR at all phase angles under 27 MHz pulse conditions (100 µsec, 20% duty cycle, 3 dB overdrive), with zero device degradation - a key ruggedness metric for plasma and broadcast applications.
MRF300A-27MHZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Transistor
- Frequency:
- 27MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- MRF300A
MRF300A-27MHZ FAQ
1.How can I place an order for MRF300A-27MHZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MRF300A-27MHZ 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 MRF300A-27MHZ reliable?
The price and inventory of MRF300A-27MHZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MRF300A-27MHZ is usually 5 days.
3.What payment methods are accepted for MRF300A-27MHZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MRF300A-27MHZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MRF300A-27MHZ?
MRF300A-27MHZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MRF300A-27MHZ 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 MRF300A-27MHZ?
For technical support, including MRF300A-27MHZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MRF300A-27MHZ requirements.
6.How does Aetrix verify that MRF300A-27MHZ is sourced from the original manufacturer or authorized distributors?
All MRF300A-27MHZ 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 MRF300A-27MHZ meets industry standards.
7.What is the process for return or replacement of MRF300A-27MHZ?
All MRF300A-27MHZ units undergo pre-shipment inspection (PSI). If there is an issue with MRF300A-27MHZ, 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 MRF300A-27MHZ part is unused and in its original packaging.
Return procedure for MRF300A-27MHZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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