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MRF151G
MRF151G
| Part Number | MRF151G |
|---|---|
| Manufacturer | M/A‑COM Technology Solutions / Microsemi |
| Category | Discrete Semiconductor Products > Transistors – FETs, MOSFETs – RF |
| Description | N‑Channel RF Power MOSFET Transistor, 300W Output Power, 50V, 175 MHz Frequency Range, M174 / Flanged Ceramic Package. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The MRF151G is a high‑power N‑channel enhancement‑mode RF MOSFET for industrial, commercial and military radio transmitters up to 175 MHz. Running from 50V supply, it delivers minimum 300W RF output power with high gain, high efficiency and strong load mismatch tolerance. Packaged in M174 flanged ceramic housing, it is designed for chassis‑mount broadband push‑pull RF power amplifiers.
Core Advantages
High‑Power RF Performance
300W output power, 14‑16dB typical gain at 175 MHz, lowers driver power requirements for transmitter systems.
Superior Mismatch Ruggedness
Survives 30:1 full‑phase VSWR mismatch under rated operating conditions.
Good Linearity & Efficiency
Low intermodulation distortion, 50% typical efficiency, ideal for SSB and broadcast transmitters.
Low‑Thermal‑Resistance Package
Gold‑metallized M174 ceramic flange package, RθJC=0.35℃/W, reliable for continuous chassis‑mount operation.
Key Specifications
| Brand | MACOM / Microsemi |
|---|---|
| RoHS Status | RoHS Compliant (“G” Suffix Indicates Green/Lead‑Free) |
| EDA / CAD | PCB Footprint & 3D Model Available upon Request |
| Warranty | 1‑Year Standard Quality Warranty |
| Package / Case | M174 (Case 211‑11) Flanged Ceramic Package |
| Mounting Type | Chassis Mount / Flange Mount |
| Surface Marking / Silkscreen | MRF151G |
| Transistor Type | RF N‑Channel MOSFET |
| Frequency Range | HF to 175 MHz |
| Output Power (Pout) | 300 W (Minimum) |
| Drain‑Source Voltage (Vdss) | 125 V (Max) |
| Operating Drain Voltage (Vdd) | 50 V (Nominal) |
| Drain Current (Id) | 40 A (Max Continuous) |
| Power Gain | 14 dB to 16 dB (Typical at 175 MHz) |
| Thermal Resistance (RθJC) | 0.35 °C/W (Max) |
| Efficiency | 50% (Typical @175MHz) |
| Operating Junction Temperature | -65°C to +200°C |
| Storage Temperature Range | -65°C ~ +150°C |
Typical Applications
- High‑Power HF and VHF Commercial and Military Radio Transmitters
- Broadcast FM Radio and TV Transmitter Power Amplifiers
- Industrial, Scientific, and Medical (ISM) RF Generators (RF Heating, Induction Welding, CO₂ Lasers)
- Nuclear Magnetic Resonance (NMR) and MRI Amplification Systems
- Linear SSB Base Station Amplifiers and Marine VHF Communications Equipment
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1‑2 business days |
| Delivery Time | 3‑7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: What does “G” suffix mean for MRF151G?
A: G stands for lead‑free RoHS green finish. MRF151 (without G) is tin‑lead non‑RoHS version. Both share identical die, pinout and electrical parameters.
Q2: What are key specs of MRF151G?
A: 300W min output, 50V supply, up to 175 MHz, 14‑16dB gain, 40A max drain current, RθJC=0.35℃/W.
Q3: How tough is its load mismatch capability?
A: It can sustain 30:1 full‑phase VSWR without performance degradation or device damage under rated conditions.
Q4: What mounting requirement for MRF151G?
A: M174 Case211‑11 flanged ceramic package, chassis‑flange mounting required for heat dissipation, not for SMT.
Q5: Can MRF151 replace MRF151G directly?
A: Pin‑to‑pin physically compatible. Note plating difference: MRF151 is tin‑lead, MRF151G is lead‑free. Adjust soldering profile accordingly. RoHS‑required projects must choose MRF151G.
Q6: Difference between junction temperature and storage temperature?
A: Operating junction: ‑65℃ ~ +200℃ (power‑on working). Storage: ‑65℃ ~ +150℃ (unpowered storage, do not exceed 150℃).
Q7: Where to get datasheet and S‑parameter files?
A: Submit product inquiry to obtain official datasheet, S‑parameter and volume quotation.
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