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ZXY EI41 Audio Transformer Low Frequency Silicon Steel Core Power Transformer

Name: ZXY EI41 Audio Transformer Low Frequency Silicon Steel Core Power Transformer
Brand: Shenzhen ZhiXiangyuan Electronics Co., Ltd.
SKU: EI41

ModelEI41CategoryMicrophone Transformer

The ZXY-14 audio isolation transformer (marked as "ZXY-14 AUDIO") is a compact audio coupling transformer built on a high-permeability laminated core, supplied as matched pairs for stereo and differential audio channels. Each unit measures 18 × 14 × 25 mm overall, with 75 mm flexible pure copper leads — one red winding and one blue winding. Dot markers identify the start point of each winding, allowing easy polarity verification at a glance.

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Phone:+86 13554723725

Email:rhea@zxycoil.com

Description

Specifications

The ZXY-14 audio isolation transformer (marked "ZXY-14 AUDIO") is a compact audio coupling transformer built on a high-permeability laminated core, supplied as matched pairs for stereo and differential audio channels. Each unit measures 18 × 14 × 25 mm overall and comes with 75 mm flexible pure copper leads, with one winding identified in red and the other in blue. Dot markers identify the start point of each winding, allowing polarity to be confirmed at a glance during assembly. This component is designed for professional audio applications requiring clean signal transmission, low distortion, and reliable electrical isolation.

· Compact Size: Overall 18 × 14 × 25 mm with a 12 mm coil body — small enough for dense layouts.

· Matched Pairs: Each set includes two transformers that are produced and tested to ensure consistent performance across both channels.

· Color-Coded Leads: Primary = red-red, secondary = blue-blue; each lead is 75 mm long and terminated with tinned stranded wire.

· Polarity Reference: Dot markers on the windings identify the start point of each coil.

· Laminated Core: High-permeability laminated core for wide-band, low-loss signal transmission.

· Multi-Layer Windings: Precision multi-layer windings ensure repeatable electrical performance and low distortion.

· Nominal Inductance: 906 mH ± 15 % (red-red) and 105.5 H ± 15 % (blue-blue), both measured at 100 Hz.

· DC Resistance: 18.3 Ω ± 10 % (red-red) and 925 Ω ± 10 % (blue-blue).

· Dielectric Strength: 500 Vrms / 5 mA for 1 second — passed.

Industry / Category	Target Application / Equipment	Key Functions & Benefits
Home Appliances	Refrigerators, air conditioners, washing machines	Isolated low-voltage control for mainboards and microcontrollers
Audio & Consumer Electronics	Audio amplifiers, power adapters	Provides clean signal isolation and low-noise operation
HVAC & Climate Control	Thermostats, boiler controllers	110V/220V to standard 24V/12V AC
Industrial Automation	PLC units, instrumentation, relays, small motors	Stable auxiliary power supply
Security & Access Control	Alarm systems, intercoms, door lock controllers	Ensures continuous low-voltage power supply 24/7

Product Features

● ZXY-14 transformer with pure copper coils — low heat generation and stable power conversion ● Customizable ZXY-14 low-frequency transformer for linear power supplies and control equipment ● EI41 silicon steel transformer — low noise and low no-load power consumption ● Optional epoxy resin sealing — waterproof, dustproof, and vibration-resistant

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Product Advantages

●The ZXY-14 is engineered for exceptional audio performance. Its laminated core and precision multi-layer windings deliver low insertion loss and minimal distortion, while the transformer provides true electrical isolation between the two windings. This breaks ground loops and eliminates hum, buzz, and DC offset in the signal path, allowing equipment at different ground potentials to be connected without noise penalties. · Noise-Free Signal Path: Electrical isolation between windings eliminates ground loop hum and interference. · Consistent Performance: Matched windings and core assemblies ensure high unit-to-unit consistency. · Audio Quality: Low distortion and stable response for microphone and line-level audio. · Piece-by-Piece Inspection: Every unit undergoes 100% full electrical testing before packaging. · Insulation Safety: Strict HI-POT and insulation safety testing at 500 Vrms / 5 mA / 1 s. · Matched Pairs: Both channels of a stereo or differential link are supplied as matched pairs. Compliance: CCC certified, CE compliant, RoHS compliant, and UL recognized component.

Application Scenarios

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Applications

Recording Microphones

Microphone signal coupling in recording studios and recording chains.

Audio Preamplifiers & Mixing Consoles

Input/output isolation in microphone preamplifiers and mixing consoles.

Audio Interfaces & DI Boxes

Audio interfaces, DI boxes, and instrument-level input stages.

Signal Isolation & Coupling

Electrical isolation and signal coupling between independent audio devices.

Product Details Display

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Quality & Testing Assurance

ZXY EI41 Audio Transformer Low Frequency Silicon Steel Core Power Transformer 15

Insulation Resistance

Verified to maintain ≥100 MΩ at 500V DC under standard operating conditions.

Efficiency & Loss Control

Designed to achieve ≥90% efficiency at rated load with minimal core and copper losses.

ZXY EI41 Audio Transformer Low Frequency Silicon Steel Core Power Transformer 16

Dielectric Withstand Test (Hi-Pot)

100% tested at 1500V AC @ 50Hz for 1 minute between primary and secondary windings to prevent leakage and ensure operator safety.

Environmental & Safety Compliance

Manufactured with flame-retardant materials and high-grade copper wire, complying with international safety and environmental standards.

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Specifications

Specifications have not been provided for this model. Send your application requirements to request a confirmed specification sheet.

Only supplied parameters are shown. Please confirm any unlisted electrical performance, test conditions, tolerances and customization options with our engineers. The final specification sheet takes precedence.

Product Images & Drawings

View the available product images and drawings below. Click to open the original. Customized products are subject to the agreed specifications and drawings.

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Downloads

No specification sheet has been uploaded for this model yet. Use the inquiry form below to request parameters, dimension drawings or sample information.

Selection & Customization Requirements

To help confirm a suitable model and specification, please provide:

Your equipment, application, operating environment and temperature range.
As applicable: inductance, turns ratio or impedance, operating frequency, voltage, current and insulation requirements.
Size limits, mounting method, pin spacing, and any existing drawings or reference samples.
Sample quantity, estimated order volume and desired delivery date.

Request Specifications / Selection Support

Frequently Asked Questions

Common procurement questions about ZXY EI41 Audio Transformer Low Frequency Silicon Steel Core Power Transformer.

What is ZXY EI41 Audio Transformer Low Frequency Silicon Steel Core Power Transformer?

Can ZXY EI41 Audio Transformer Low Frequency Silicon Steel Core Power Transformer be customized to our specifications?

Yes. Shenzhen ZhiXiangyuan Electronics Co., Ltd. provides OEM/ODM services. Inductance, turns ratio, current rating, core material, size and terminal style can all be customized according to your drawings or samples.

What is the MOQ and lead time for ZXY EI41 Audio Transformer Low Frequency Silicon Steel Core Power Transformer?

MOQ is negotiable based on the specific model and order quantity. Typical lead time is 1-3 weeks for standard items and 2-4 weeks for customized orders. Contact our sales team for an exact quotation.

Do you provide samples of ZXY EI41 Audio Transformer Low Frequency Silicon Steel Core Power Transformer?

Yes, samples are available for evaluation before bulk orders. Please send us your requirements and shipping details to request samples.

What is the model number of this product?

The model number is EI41. Custom model numbers can be assigned for OEM orders.