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BLF183XR

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BLF183XR

Part NumberBLF183XR
ManufacturerAmpleon / NXP Semiconductors
CategoryDiscrete Semiconductor Products > Transistors – FETs, MOSFETs – RF
Description350W LDMOS Power Transistor, Extremely Rugged (XR), HF to 600 MHz, Flanged SOT1121A Package.
Stock StatusIn Stock
OriginOriginal Factory

Product Overview

BLF183XR is Ampleon 350W rugged LDMOS RF transistor for HF‑600 MHz broadcast & ISM equipment. Supports 65:1 full‑phase VSWR withstand, built‑in ESD protection, high efficiency. SOT1121A flanged ceramic package for transmitters, plasma and laser drivers.

Core Advantages

Excellent Anti‑Mismatch

65:1 full‑phase VSWR ruggedness, reduces isolator dependency.

High Power Efficiency

350W CW output, typical 75% drain efficiency, low cooling demand.

Broadband Operation

HF‑600 MHz, fit for broadcast and industrial RF platforms.

High Reliability

ESD protection, flange‑mount package for efficient heat dissipation.

Key Specifications

BrandAmpleon / NXP
RoHS StatusRoHS Compliant / Lead‑Free
EDA / CADPCB Footprint & 3D Model Available upon Request
Warranty1‑Year Standard Quality Warranty
Package / CaseSOT1121A (Flanged Ceramic Power Package with mounting holes)
Mounting TypeChassis Mount / Flange Mount
Surface Marking / SilkscreenBLF183XR Marking
Transistor TechnologyLDMOS (Lateral Diffused MOS)
Frequency RangeHF to 600 MHz
Peak/CW Output Power350 W CW
Power GainTyp. 25 dB‑28 dB (Frequency dependent)
Drain EfficiencyTyp. 75%
Drain‑Source Voltage (Vdss)135 V
Operating Drain Voltage (Vds)50 V Typical
VSWR Ruggedness65:1 (All phase angles)
Thermal Resistance Rth(j‑c)0.23 K/W
Operating Temperature‑40°C ~ +150°C

Typical Applications

  • FM and Digital VHF/UHF Broadcast Transmitters
  • Industrial, Scientific, and Medical (ISM) RF Generators
  • CO2 Laser Drivers and Plasma Etching Equipment
  • Magnetic Resonance Imaging (MRI) RF Amplifiers
  • HF/VHF Communications and Radar Power Amplifiers

Order & Shipping Info

Minimum Order Quantity (MOQ)1 Piece
Shipping TimeShipped within 1‑2 business days
Delivery Time3‑7 working days worldwide
Shipping MethodsDHL, UPS, FedEx, EMS
Payment MethodsT/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 “XR” stand for in BLF183XR?

A: XR means eXtremely Rugged. It tolerates 65:1 full‑phase VSWR mismatch without device damage.

Q2: What are key electrical specs of BLF183XR?

A: 350W CW output power, typical drain voltage 50V, maximum Vdss rating 135V.

Q3: Difference between BLF183XR and BLF183XRS?

A: Electrical specs are identical. BLF183XR:SOT1121A with mounting holes; BLF183XRS:SOT1121B earless no‑hole. Pin‑to‑pin compatible, only mechanical mounting differs.

Q4: What Ampleon alternative parts are available?

A: BLF182XR (250W lower‑power), BLF184XR (700W higher‑power). Not drop‑in replacements; matching circuit adjustments are required.

Q5: What competing RF transistor can be referenced?

A: MRFE6VP6300H is a comparable competitor. Different pinout and package, cannot direct substitute, circuit redesign is needed.

Q6: What package does BLF183XR adopt?

A: SOT1121A flanged ceramic chassis‑mount package with two mounting holes for heatsink assembly.

Q7: Can BLF183XR run without external isolator?

A: 65:1 ruggedness improves mismatch tolerance. For critical broadcast equipment, an external isolator is still recommended for long‑term reliability.

Q8: How do I get datasheet, model or bulk quotation?

A: Submit quick inquiry for datasheets, simulation models, stock status and volume pricing.

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