High Magnetic Permeability EI35 Audio Transformer Permalloy Solder Wiring

1.Product Description

This is an EI35 audio transformer that uses a high permeability Permalloy magnetic core. Its core feature lies in the extremely high magnetic permeability brought by the Pomo alloy material, which can efficiently transmit signal magnetic fields, achieve a wide frequency response far beyond ordinary silicon steel sheet transformers (especially good at retaining delicate high frequencies and deep low frequencies), extremely low signal loss, and excellent electromagnetic shielding ability, effectively isolating external interference. It is mainly used in high-end audio devices to perform signal coupling, impedance matching, and voltage conversion functions, and can completely eliminate ground loop noise between devices through galvanic isolation, bringing you a pure and detailed sound quality experience.

This EI35 audio transformer, featuring a Permalloy core, delivers exceptional electrical isolation and precise signal conversion during audio transmission. Its key functions include:

Impedance Matching and Voltage Conversion: Its primary function is to achieve impedance matching and voltage conversion between circuits. For example, in tube amplifiers, it efficiently converts the high-impedance output of power tubes (e.g., 5KΩ/10KΩ) to a low impedance suitable for driving speakers (e.g., 4Ω/8Ω). Alternatively, it matches the 600Ω impedance of professional equipment during line transmission, ensuring maximum power transfer and minimizing signal reflection distortion.

**Galvanic Isolation:** Transformers transmit signals via magnetic coupling rather than electrical connections, physically severing direct electrical links (including ground connections) between preceding and succeeding circuits. This completely eliminates ground loop noise (hum) caused by potential differences between devices, serving as a core safeguard for achieving pristine audio quality.

Common-Mode Noise Suppression: For balanced transmission, the transformer effectively suppresses common-mode interference (e.g., RF interference, power supply hum) present on both signal and ground lines, extracting only the differentiated useful audio signal. This significantly improves signal-to-noise ratio, making it particularly suitable for long-distance signal transmission.

Signal Coupling: Couples audio signals from one circuit stage to another without altering the DC operating point, while isolating DC voltage to protect downstream equipment.

The EI35 Permalloy core is not merely the means to achieve these functions, but the guarantee that pushes performance to its ultimate limits:

High permeability delivers exceptionally high primary inductance, enabling outstanding low-frequency response (with a -3dB point extending down to 20Hz or lower), delivering deep, rich bass.

Extremely low core losses ensure smooth, open high-frequency extension (reaching above 20kHz), preserving detailed clarity with minimal phase distortion.

Superior magnetic shielding properties effectively block external electromagnetic interference (EMI), preventing noise intrusion into sensitive audio signal paths.

Summary: Its function is to enable high-quality, noise-free audio signal transmission, conversion, and isolation. The EI35 permalloy core ensures these functions are achieved with minimal loss, an exceptionally wide frequency response, and the highest fidelity, making it the premier component for designs pursuing ultimate audio quality.

2.Performance Characteristics

3.Other Recommended Produtcs

4.Company Profile