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Guangzhou Katoy Electronics Co., Ltd. is a professional custom transformer and magnetic component manufacturer based in Panyu, Guangzhou, China. We specialize in the design, development and production of a full range of magnetic products including audio transformers, low-frequency transformers, high-frequency transformers, toroidal transformers, inductors, reactors, single-phase & three-phase transformers and instrument transformers.<br/>With an in-house R&D engineering team and automated production facilities, we provide one-stop solutions from prototype development to mass production for global clients. Our products are widely applied in industrial power supplies, new energy systems, audio equipment, industrial control, instrumentation and telecommunications industries. Adhering to strict quality control standards and full inspection procedures, we serve customers across Europe, the Middle East, Southeast Asia and the Americas with reliable products, competitive pricing and responsive technical support.
020-32031188
Guangzhou KATOY Electronics Co., Ltd.

EI-Core Constant-Voltage Audio Transformer

KATOY manufactures custom EI-core constant-voltage audio transformers for audio signal transmission and impedance matching. Input voltage, output impedance, power rating, frequency response, lead configuration, and mounting can be customized.

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Typical Typical Applications:

Professional Audio | Broadcasting Systems | Power Amplifiers | Recording Equipment | Hi-Fi Audio Systems

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EI-Core Dual-Channel Audio Isolation Transformer
Audio transformers are one of KATOY Electronics’ core product lines. Designed for audio signal transmission, impedance matching, electrical isolation, and noise suppression, they help improve audio system stability and sound quality. Our custom audio transformers are widely used in professional audio systems, mixing consoles, power amplifiers, broadcasting equipment, recording devices, and high-end audio applications. Multiple specifications and OEM/ODM customization services are available. KATOY manufactures custom EI-core dual-channel audio isolation transformers for two-channel signal isolation and transmission. Channel specifications, impedance, frequency response, connectors, and lead harnesses can be customized.

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Miniature EI-Core Audio Isolation Transformer
Audio transformers are one of KATOY Electronics’ core product lines. Designed for audio signal transmission, impedance matching, electrical isolation, and noise suppression, they help improve audio system stability and sound quality. Our custom audio transformers are widely used in professional audio systems, mixing consoles, power amplifiers, broadcasting equipment, recording devices, and high-end audio applications. Multiple specifications and OEM/ODM customization services are available. KATOY manufactures miniature EI-core audio isolation transformers for signal isolation, coupling, and noise control. Impedance, frequency response, turns ratio, insulation, and lead configuration can be customized.

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EI-Core Multi-Tap Audio Transformer
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EI-Core Audio Filter Inductor
Audio transformers are one of KATOY Electronics’ core product lines. Designed for audio signal transmission, impedance matching, electrical isolation, and noise suppression, they help improve audio system stability and sound quality. Our custom audio transformers are widely used in professional audio systems, mixing consoles, power amplifiers, broadcasting equipment, recording devices, and high-end audio applications. Multiple specifications and OEM/ODM customization services are available. KATOY manufactures custom EI-core audio filter inductors for audio-frequency filtering and noise suppression. Inductance, rated current, DC resistance, frequency range, lead configuration, and mounting can be customized.

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EI Low Frequency Power Transformer
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EI Low Frequency Isolation Transformer
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Ultra-Compact Multi-Lead EI Transformer
Low-Frequency Transformers are designed for industrial control equipment, power supplies, medical devices, test instruments and automation systems. They provide stable output, reliable insulation, low temperature rise and dependable long-term operation. Custom designs are available to meet specific application requirements. KATOY manufactures ultra-compact multi-lead EI transformers for equipment with limited space and application-specific wiring. Electrical ratings, dimensions, lead configuration, and insulation design can be customized.

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Miniature Leaded EI Transformer
Low-Frequency Transformers are designed for industrial control equipment, power supplies, medical devices, test instruments and automation systems. They provide stable output, reliable insulation, low temperature rise and dependable long-term operation. Custom designs are available to meet specific application requirements. KATOY manufactures miniature leaded EI transformers for voltage conversion, power supply, or isolation in compact equipment. Voltage ratings, power, dimensions, lead length, and connectors can be customized.

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Miniature Multi-Winding EI Transformer
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EI Chassis-Mount Low-Frequency Transformer
Low-Frequency Transformers are designed for industrial control equipment, power supplies, medical devices, test instruments and automation systems. They provide stable output, reliable insulation, low temperature rise and dependable long-term operation. Custom designs are available to meet specific application requirements. KATOY manufactures custom EI chassis-mount low-frequency transformers with mounting brackets and lead wires. Voltage ratings, power, winding configuration, lead harness, and mounting dimensions can be customized.

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Potted PCB-Mount EI Transformer
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EI Transformer Assembly with Adjustment Component
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Multi-Pin PCB-Mount EI Transformer
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EE-Core High-Frequency Transformer
High-Frequency Transformers are widely used in switch-mode power supplies (SMPS), inverters, telecom power supplies, battery charging systems, renewable energy equipment and industrial control applications. They offer high efficiency, low core loss, compact construction and reliable performance. Each transformer is engineered to meet specific electrical and mechanical requirements. KATOY manufactures custom EE-core high-frequency transformers for energy transfer and isolation in high-frequency power supplies. Core size, frequency, winding design, power, pin layout, and mounting structure can be customized.

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Low-Profile Horizontal High-Frequency Transformer
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ER-Core Leaded High-Frequency Transformer
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Slim EE-Core Vertical High-Frequency Transformer
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EE-Core Vertical High-Frequency Transformer
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PQ-Core Vertical High-Frequency Transformer
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Dual-Section Horizontal High-Frequency Magnetic Component
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EE-Core Horizontal PCB-Mount High-Frequency Transformer
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EE-Core Leaded High-Frequency Transformer
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Bracket-Mount Toroidal Autotransformer
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Clamp-Mount Toroidal Transformer
Toroidal Transformers feature low magnetic leakage, high efficiency, low noise, low temperature rise and compact construction. They are widely used in professional audio equipment, medical devices, industrial control systems, power supplies and precision electronic instruments. KATOY manufactures custom clamp-mount toroidal transformers with center-bolt fixing, metal clamping plates, and insulating pads for secure chassis installation. Voltage, VA rating, winding configuration, clamp dimensions, mounting hardware, leads, and insulation can be customized.

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Multi-Winding Leaded Toroidal Transformer
Toroidal Transformers feature low magnetic leakage, high efficiency, low noise, low temperature rise and compact construction. They are widely used in professional audio equipment, medical devices, industrial control systems, power supplies and precision electronic instruments. KATOY manufactures custom multi-winding leaded toroidal transformers with multiple voltage outputs or independently configured windings. Input/output voltage, VA rating, winding configuration, wire type, lead length, terminals, and insulation system can be customized.

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Compact Leaded Toroidal Transformer
Toroidal Transformers feature low magnetic leakage, high efficiency, low noise, low temperature rise and compact construction. They are widely used in professional audio equipment, medical devices, industrial control systems, power supplies and precision electronic instruments. KATOY manufactures custom compact leaded toroidal transformers for equipment with limited installation space. Input/output voltage, VA rating, dimensions, winding configuration, wire type, lead length, and insulation can be customized.

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Toroidal Transformer with Connector Harness
Toroidal Transformers feature low magnetic leakage, high efficiency, low noise, low temperature rise and compact construction. They are widely used in professional audio equipment, medical devices, industrial control systems, power supplies and precision electronic instruments. KATOY manufactures custom toroidal transformers with preassembled connector harnesses for efficient equipment integration and reduced field wiring. Input/output voltage, VA rating, winding configuration, connector type, wire type, lead length, and pin assignment can be customized.

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Base-Mount Toroidal Transformer
Toroidal Transformers feature low magnetic leakage, high efficiency, low noise, low temperature rise and compact construction. They are widely used in professional audio equipment, medical devices, industrial control systems, power supplies and precision electronic instruments. KATOY manufactures custom base-mount toroidal transformers with metal mounting plates for secure installation in chassis and equipment. Voltage, VA rating, winding configuration, leads, base dimensions, and mounting-hole positions can be customized.

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Leaded Three-Phase Common-Mode Choke
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Compact Base-Mount Toroidal Common-Mode Choke
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Bracket-Mount Toroidal Common-Mode Choke
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Heavy-Gauge Toroidal Common-Mode Choke
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UU-Core Vertical Common-Mode Choke
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Single-Core PCB-Mount Common-Mode Choke
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Horizontal PCB-Mount Common-Mode Choke
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PCB-Mount Toroidal Common-Mode Choke
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Mounted Toroidal Common-Mode Choke
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Copyright © 2024 Guangzhou KATOY Electronics Co., Ltd. All Rights Reserved.
Katoy Electronics – Custom transformer and magnetic component manufacturer in Guangzhou, China. Reliable quality, custom solutions and global export support.Power inductor and common mode choke for EMI filtering,Line reactor for VFD drives and renewable energy systems
Email: daniel@gzkatoy.com
Tel: +86 20 3203 1188
Address: No. 28-1, Gongye 1st Road, Tanshan Village, Hualong Town, Panyu District, Guangzhou, China
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