Description
Chassis Mount Transformer 100-200W – Low Frequency Silicon Steel Audio Isolation Transformer
In addition, this chassis mount audio isolation transformer has two core working functions: it transfers signal voltage and mains power, realizes impedance matching between different circuit modules, and provides reliable isolation to block DC interference signals inside equipment.
We can clearly distinguish low-frequency chassis mount transformers from ferrite high-frequency transformers by core material. Low-frequency types use silicon steel sheets for 50/60Hz mains operation, while high-frequency transformers adopt MnZn ferrite cores working above 20kHz. If you need high-frequency power conversion solutions, you can check our EE55 transformer series for kilowatt-level SMPS applications.
Core Features of Chassis Mount Transformer 100-200W
- Double-section metric bobbins for neat multi-group winding, convenient for customized input & output voltage ratio;
- Standard power range: 25VA – 200VA, this model focuses on 100VA~200VA high-power chassis mounting demands;
- High dielectric strength up to 4000Vrms, strong insulation performance for safety isolation;
- Class B temperature resistance (130℃), stable long-term continuous operation without overheating;
- Integrated chassis fixed structure, easy to lock and install inside audio cabinets, industrial control chassis;
- Low magnetic leakage design, effectively reducing electromagnetic interference to adjacent circuit boards.
Specification of Chassis Mount Transformer 100-200W
| Parameter | Specification |
| Product Name | Chassis Mount Audio Isolation Transformer |
| Rated Power | 100W / 200W (Optional) |
| Application | Audio signal transmission, impedance matching, noise isolation |
| Mounting Type | Chassis mount with metal bracket |
| Frequency Response | 20Hz–20kHz |
| Input Voltage (Primary) | Customizable (e.g., 115V / 230V) |
| Output Voltage (Secondary) | Customizable (per customer requirements) |
| Insulation Resistance | ≥100MΩ @ 500V DC |
| Withstand Voltage | Primary to Secondary: AC 1500V / 1min |
| Operating Temperature | -20°C ~ +70°C |
| Storage Temperature | -30°C ~ +85°C |
| Core Material | High-grade silicon steel |
| Bobbin Material | Flame-retardant plastic |
| Housing Material | Metal chassis with mounting bracket |
| Customization Service | Winding turns, voltage ratio, power rating, and pin configuration available |
characteristics
Characteristics of Low-Frequency (Line-Frequency) Transformers
- The AC mains input power is directly applied to the primary winding, without the need for high-frequency conversion.
- The magnetic core, typically made of high-permeability silicon steel sheets, operates at 50/60Hz to couple and transfer power efficiently.
- The secondary winding induces a low-frequency voltage, which is then rectified and filtered (if required) to power the load or drive audio circuits.
- The output voltage is determined by the turns ratio of the primary and secondary windings, providing a stable voltage step-up or step-down function.
- Noise & Interference Isolation: Provides galvanic isolation between circuits, blocking DC components and reducing ground loop noise in audio applications.
- Reliable Power Transfer: Designed for continuous operation at line frequency, ideal for audio equipment and industrial power applications.
- Multiple Output Configurations: Can include multiple secondary windings or taps to provide different voltage levels for various circuit needs.
- Built-In Protection: Often paired with thermal fuses or overcurrent protection to prevent damage under fault conditions.
This chassis mount low-frequency isolation transformer fully complies with official mains audio transformer safety specifications issued by IEC for industrial and audio equipment design.
We also develop standard and customized three phase transformer for industrial automation, power cabinet and heavy-duty power supply equipment. It works perfectly alongside our chassis mount transformers in multi-phase power distribution systems, offering stable voltage conversion and galvanic isolation for industrial machinery.
Details:
Real product shot of chassis fixed silicon steel isolation transformer with terminal block for audio & industrial cabinet equipment
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