XH-R300 300VA Class-A Power Amplifier R-Core Transformer AutoCAD GA Blueprint

R-Core & Audio Transformers · R-Core Power Transformers

XH-R300 300VA Class-A Power Amplifier R-Core Transformer

300VA audiophile powerhouse R-Core transformer designed for high-power Class-A/AB monoblock amplifiers and medical isolation equipment. Features heavy-gauge oxygen-free copper magnet wire, twin-bobbin symmetry, and full electrostatic Faraday screening.

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المواصفات الفنية

Power Rating 300 VA
Core Type Continuous Nippon Steel Silicon Strip (Zero Air Gap)
Magnetic Flux Leakage < 5 mG (1/10th of EI Core)
Dielectric Withstand 4,000 V AC Primary-Secondary (1 min)
Insulation Resistance > 100 MΩ @ 500V DC
Outer Dimensions (L×W×H) 140 × 125 × 88 mm
Mounting Hole Centers (A×B) 125 × 100 mm
Net Weight 4.2 kg
Secondary Options Dual 35V / Dual 40V / Dual 45V (Dual 3.75A)
Lead Wires High-Temperature PTFE Teflon Silver-Plated (300mm)

معلومات المنتج

الحالة

نُشر

معرف المنتج

XH_R300_PRECISION_R_CORE_TRANSFORMER

آخر تحديث

2026-10-09T06:05:35.945517+00:00

Technical Highlights

  • Zero mechanical hum or acoustic vibration — continuous strip has no stamped lamination burrs or loose gaps.
  • No-load exciting current is less than 10% of traditional EI transformers, with full-load temperature rise ≤ 35K.

Application Scenarios

  • High-end audiophile DACs, phono preamplifiers, headphone amplifiers, tube power amplifiers, and low-noise precision medical instruments.

Key Features

  • Continuous circular-cross-section core wound from premium Nippon Steel grain-oriented silicon strip.
  • Twin balanced bobbins provide 100% galvanic symmetry and extremely low inter-winding capacitive coupling (<15 pF).
  • Annealed OFC copper perimeter foil shield band virtually eliminates stray magnetic field radiation (<5 mG).

الأسئلة الشائعة

Request secondary rail options up to Dual 50V at 3A with independent auxiliary taps.

IEC 61558-1 / IEC 60601-1 (medical isolation option) / UL 5085.

Custom foam-lined export carton with galvanized mounting base plate.

الأسواق والموارد ذات الصلة

دليل المشتري

كيفية الشراء من الصين

المعايير والامتثال

IEC 61558-1 / IEC 60601-1 (medical isolation option) / UL 5085.

التغليف والتسليم والخدمة

Custom foam-lined export carton with galvanized mounting base plate.

Request secondary rail options up to Dual 50V at 3A with independent auxiliary taps.

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