XH-R30 30VA Precision R-Core Power Transformer AutoCAD GA Blueprint

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

XH-R30 30VA Precision R-Core Power Transformer

30VA audiophile-grade R-Core power transformer designed for Hi-Fi preamplifiers, CD players, phono stages, and low-noise linear power supplies. Features dual-bobbin symmetrical winding, zero mechanical hum, and full OFC electrostatic copper shielding.

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Spécifications techniques

Power Rating 30 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) 78 × 68 × 46 mm
Mounting Hole Centers (A×B) 68 × 52 mm
Net Weight 0.65 kg
Secondary Options 15V-0-15V / 18V-0-18V / 24V-0-24V (Dual 1.0A)
Lead Wires High-Temperature PTFE Teflon Silver-Plated (300mm)

Informations sur le produit

Statut

Publié

ID du produit

XH_R30_PRECISION_R_CORE_TRANSFORMER

Dernière mise à jour

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).

Questions fréquemment posées

Contact our engineering team with your primary voltage (115V / 230V universal) and custom secondary tap requests.

Manufactured to IEC 61558-1 and UL 5085. 4,000V primary-to-secondary isolation test. Flame retardant Class B/F insulation system.

Export carton packaging with molded foam compartments. Fast batch dispatch from Hefei factory.

Marchés et ressources connexes

Guide de l'acheteur

Comment s'approvisionner en Chine

Normes et conformité

Manufactured to IEC 61558-1 and UL 5085. 4,000V primary-to-secondary isolation test. Flame retardant Class B/F insulation system.

Emballage, livraison et service

Export carton packaging with molded foam compartments. Fast batch dispatch from Hefei factory.

Contact our engineering team with your primary voltage (115V / 230V universal) and custom secondary tap requests.

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