Key Features

• The ATS Series audio transformers serve as specialized low-frequency transformers, providing precision signal coupling functionality.
• Featuring 1000Vrms inter-winding isolation and an ultra-compact SMT design (height ≤7.3mm).
• Utilizing a standardized 1:1 ±1% turn ratio ensures extremely low insertion loss (≤3.0dB @1kHz) and DC resistance as low as 140Ω.
• Fully encapsulated design complies with RoHS/UL standards.
• Compatible with power inductors for stable energy transfer, also suitable for RF inductors in broadband signal chains.
• Supports custom center-tapped winding configurations to meet flexible integration requirements.

Technical Specifications

• Isolation Voltage: 1000Vrms (winding to winding)
• Inductance: 4.3H min @1kHz (model-dependent)
• DC Resistance (DCR): 140Ω–480Ω (primary/secondary)
• Frequency Response: ±0.35dB (300Hz–4kHz)
• Insertion Loss: ≤3.0dB @1kHz, 1V (600Ω load)
• Longitudinal Balance: ≥70dB (200Hz–4kHz)
• Operating Temp: -40°C to +85°C
  Terminal plating: Solder-friendly AgSn

Applications

• Telecom Interfaces: Line matching in modems and PCMCIA cards, paired with EMC filters for noise suppression.
• Audio Isolation Stages: Coupling preamps/mixers with distortion-free signal transfer.
• Security Systems: Reliable signal integrity for Sensor-based alarm networks.
• Power Management: Voltage adaptation in power converters for DC-DC circuits.
• Instrumentation: Precision measurement devices requiring low-DCR transformers.

FAQ

Q: Can it replace general-purpose power inductors?
A: Optimized for 200Hz-10kHz audio bands (not power conversion), with lower DCR than standard power inductors.

Q: How to minimize EMI in audio circuits?
A: Combine with RF inductors and EMC filters to suppress high-frequency interference.

Q: Custom turns ratios supported?
A: Yes, for specialized transformers (e.g., 1.2K:8Ω).