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BLF571,112
BLF571,112
| Part Number | BLF571,112 |
|---|---|
| Manufacturer | Ampleon / NXP Semiconductors |
| Category | Discrete Semiconductor Products > Transistors > FETs, MOSFETs > RF MOSFETs / Power Transistors |
| Description | 20W HF/VHF LDMOS RF Power Transistor, 50V Operation, Broadband Broadcast & ISM Power Amplifier, SOT467C Ceramic Flanged Package. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The BLF571,112 is Ampleon broadband LDMOS RF power transistor for 10 MHz–500 MHz HF/VHF bands. Operating at 50V, it provides 20W CW/pulsed output power with high gain, high efficiency and strong mismatch ruggedness. The SOT467C ceramic flange package delivers reliable thermal performance for broadcast, ISM and RF communication amplifiers.
Core Advantages
High Efficiency & Superior RF Power Gain
Provides typical 27.5 dB power gain at 225 MHz, with drain efficiency reaching 70%, lowering system power consumption and heat generation.
Excellent Anti-Mismatch Ruggedness
Withstands severe antenna load mismatch without device damage, improving stability for transmitter and industrial RF equipment.
Broadband Frequency Coverage
Covers 10 MHz ~ 500 MHz HF/VHF band, suitable for multi-frequency broadcast radio, amateur radio and industrial RF systems.
Reliable Ceramic Flange Packaging
SOT467C screw-mount ceramic package with low thermal resistance, ensuring stable long-term operation under continuous high-power working status.
Key Specifications
| Brand | Ampleon / NXP Semiconductors |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free / Green |
| EDA/CAD | Symbol, Footprint & 3D Model Available |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | SOT467C Ceramic Flanged Package |
| Mounting Type | Chassis Mount / Screw Flange Mount |
| Surface Marking / Silkscreen | BLF571 / Ampleon Logo, Marking |
| Transistor Technology | N-Channel Enhancement Mode LDMOS |
| Operating Frequency Range | HF to VHF Band (10 MHz to 500 MHz) |
| RF Output Power | Typ. 20 W CW / Pulsed |
| Operating Drain Voltage | 50 V DC (Nominal) |
| Maximum Drain Source Voltage | 110 V DC |
| Power Gain | Typ. 27.5 dB (f = 225 MHz, VDS = 50 V) |
| Drain Efficiency | Typ. 70% or higher at 225 MHz |
| Quiescent Drain Current | 50 mA |
| Input Capacitance (Ciss) | Approx. 22.9 pF @ VDS=50V |
| Operating Junction Temperature | -65°C to +150°C |
| Packaging Format | Tray / Anti-Static Packaging (,112 standard packaging) |
Typical Applications
- Broadcast transmitters for FM radio, VHF TV, and digital audio broadcasting (DAB)
- Industrial, Scientific, and Medical (ISM) RF generators and plasma generators
- Commercial and military HF/VHF tactical communications and land mobile radio
- Radar drivers, avionics transmitters, and test & measurement power amplifiers
- High-power RF signal sources and linear power amplifier driver stages
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 the “,112” suffix mean for BLF571,112?
A: The ,112 suffix refers to original tray packaging. Chip core, electrical specs and package are the same as other BLF571 suffix versions; only packaging differs, fully interchangeable.
Q2: Can BLF571,112 be directly replaced with other RF transistors?
A: Direct replacement requires matching frequency range, operating voltage, power rating and package. Devices with different packages cannot be pin-to-pin compatible without PCB changes.
Q3: What is the difference between junction temperature and case temperature?
A: Junction temperature (-65°C ~ +150°C) is the maximum limit of internal silicon die. Case temperature refers to package housing temperature. Do not exceed junction temperature during continuous operation.
Q4: What comparable alternatives are available for BLF571,112?
A: Select alternative Ampleon/NXP BLF series HF/VHF LDMOS devices. Pay attention to frequency range, power, drain voltage and package. Similar-power competitors often differ in gain and efficiency.
Q5: What frequency band does BLF571,112 support?
A: Standard operating range: 10 MHz to 500 MHz. Operation outside this range cannot guarantee stable performance.
Q6: Does BLF571,112 support CW and pulsed operation?
A: Yes. It supports continuous-wave and pulsed modes, widely used in broadcast transmitters and industrial RF equipment.
Q7: Is extra protection circuit required for BLF571,112?
A: Basic internal ESD protection is integrated. For high-power transmitters, external matching and anti-reflection circuits are recommended to avoid damage under extreme load mismatch.
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