ZXYAUDIO ZXY3723 Permalloy Shielded Audio Transformer - Single-Phase Toroidal Autotransformer for Low-Frequency Audio, 360° EMI Shielding, Chamfered Metal Case, Pin Terminals

1. Product Overview

The ZXY3723 is a single-phase low-frequency audio transformer with a toroidal autotransformer structure, housed in a permalloy-shielded metal case. The coil is wound with copper wire and terminated with pins, making it suitable for electronic equipment. Electrical specifications can be customized to meet requirements, with impedance and turns ratio determined per order.

ZXYAUDIO ZXY3723 Permalloy Shielded Audio Transformer

2. Key Features

• Single-phase audio transformer for low-frequency applications
• Toroidal coil structure forming a closed ring-shaped magnetic circuit
• Autotransformer configuration: input and output share the same winding
• Permalloy magnetic shielding with a high-permeability shield wrapped around the winding
• 360° anti-electromagnetic interference structure
• Copper wire winding; pin terminals for easy direct mounting and soldering
• Chamfered metal case with a precision-printed model label
• Customizable electrical specifications, with impedance and turns ratio tailored per order

3. Product Advantages

The toroidal winding closes the magnetic circuit into a continuous ring. The magnetic path is short and enclosed, resulting in high magnetic efficiency, low leakage inductance, and virtually no stray magnetic field leakage to adjacent components—which is especially important in electronic equipment where the transformer sits close to other parts on the assembly.

A permalloy magnetic shield is wrapped around the outside of the winding. Permalloy offers extremely high magnetic permeability, deflecting external magnetic fields away from the coil. The 360° anti-EMI structure supports low-noise audio transmission. Since the ZXY3723 is an autotransformer, the input and output share a single winding rather than separate primary and secondary windings, requiring fewer turns and a simpler coil structure, keeping the device compact. Impedance and turns ratio are customized according to customer requirements.

4. Application Areas

This transformer is specified as an audio transformer for electronic equipment, operating in the low-frequency range.

• Low-frequency audio circuits in electronic equipment
• Applications where the winding must be kept away from external magnetic fields
• Compact toroidal transformer positions in electronic assemblies
• OEM manufacturing requiring customized electrical specifications (tailored impedance and turns ratio)

ZXY3723 Mounted on a Circuit Board

5. Specifications

5.1 Technical Specifications

Note: Compiled from the specification sheet provided for this model.

5.2 Model Overview

5.3 Structure and Shielding

Note: The above descriptions are based on the product artwork provided for this model.

Precision-Printed Label and Chamfered Metal Case

Permalloy Magnetic Shielding: 360° EMI Protection, High-Permeability Shield, Low-Noise Audio Transmission

Custom Electrical Specifications: Single-Phase Audio Design with Tailored Impedance and Turns Ratio

Low-Frequency Audio Application: Toroidal Autotransformer Structure for Pure Sound and Low Distortion

5.4 Compliance and Quality Standards

Note: Marks are reproduced as shown on the product appearance; no certificate numbers are provided.

International Compliance and Quality Standards: CE, RoHS, ISO 9001, FC Lead-Free Terminals

5.5 Dimensional Views

Orthographic and 3D Views: Top, Isometric, Front, and Bottom

Note: The provided views do not include dimensional values, so no dimension table is given.

6. Quality and Testing Assurance

• Quality is based on the electrical specifications agreed per order and confirmed before production.
• Single-phase toroidal autotransformer with copper wire winding.
• Permalloy magnetic shield installed around the winding.
• Chamfered metal case with a precision-printed model label.
• Pin leads for direct mounting and soldering; product packaged in a carton.

Model: ZXY3723 | Type: Permalloy Shielded Audio Transformer | Structure: Single-Phase Toroidal Autotransformer. Impedance and turns ratio can be customized per order: please send your required specifications, quantity, and destination port for a quote.