600:600 Ohm 1:1 Audio Isolation Transformer Nickel Alloy 2/5Pcs

$23.54 $26.61

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600:600 Ohm 1:1 Audio Isolation Transformer — Nickel Alloy Permalloy Core

Upgrade your audio and signal chain with these high-efficiency 600:600 Ohm 1:1 Audio Isolation Transformers. Built from premium nickel alloy (permalloy) and engineered for stable intermediate-frequency performance, these compact transformers are ideal for audio interfaces, balanced line circuits, voltage amplification stages, and power output applications. Available in convenient 2-pack or 5-pack quantities.

Made in Mainland China.

Key Features

600 Ohm Impedance Matching: A balanced 600:600 Ω AC impedance ratio makes these transformers ideal for a wide range of audio and signal-level applications, from voltage amplification to balanced line output.
1:1 Voltage Ratio: Maintains signal integrity with a perfect 1:1 winding ratio — 800 primary turns and 800 secondary turns for symmetrical, low-distortion signal transfer.
Nickel Alloy / Permalloy Core: Crafted from high-permeability nickel alloy, minimizing hysteresis loss and ensuring long-lasting, stable performance across your audio circuits.
Multiple Pin Configurations: Available in 4-pin and 5-pin formats to suit various PCB layouts and audio transformer applications.
EMI & EMC Compliant: Designed to meet EMI and EMC standards, making them fully compatible with modern electronic systems and sensitive audio equipment.
Compact Vertical Form Factor: Compact 10 × 8 mm vertical construction fits easily into tight PCB spaces without sacrificing performance.
Oil-Immersed Air-Cooled Design: Intermediate-frequency design with oil-immersed air-cooled operation for consistent thermal stability.

Technical Specifications

AC Impedance	600 : 600 Ω
Voltage Ratio	1:1
Inductance	290 mH (±20%)
DC Resistance	135 Ω (±%)
Primary Coils	800 turns
Secondary Coils	800 turns
Winding Type	Double-wire winding
Frequency Range	Intermediate frequency
Cooling Mode	Oil-immersed air-cooled
Moisture Protection	Open
Appearance	Vertical
Size	10 × 8 mm
Package Quantity	2 Pcs or 5 Pcs
Battery Required	No

What's in the Box

2 or 5 × Audio Isolation Transformer (600:600 Ω, 1:1)

Please allow 2–3% dimensional variance due to manual measurement. Actual color may differ slightly from on-screen images due to display calibration differences.

Frequently Asked Questions

Q: What is a 600:600 Ohm 1:1 audio isolation transformer used for?

A: A 600:600 Ohm 1:1 audio isolation transformer is used to match impedance between balanced audio lines, eliminate ground loop hum, and isolate digital signal paths in audio equipment. The 1:1 ratio ensures the signal level is transferred without amplification or attenuation, making it perfect for line-level audio circuits, intercom systems, and balanced signal interfaces.

Q: What is the difference between the 4-pin and 5-pin configurations?

A: The 4-pin configuration features a straightforward primary-to-secondary winding layout, while the 5-pin version typically includes a center-tap on one winding — useful for specific circuit designs requiring a center-tapped secondary or primary. Choose the configuration that matches your PCB layout and circuit requirements.

Q: Why is nickel alloy (permalloy) used as the core material?

A: Nickel alloy (permalloy) has exceptionally high magnetic permeability, which allows the transformer core to efficiently conduct magnetic flux at low signal levels. This minimizes hysteresis loss and core saturation, resulting in cleaner signal transfer, lower distortion, and a longer operational lifespan compared to standard iron-core transformers.

Q: Are these transformers compatible with modern PCB designs?

A: Yes. These audio isolation transformers are designed to meet EMI and EMC compliance standards, making them compatible with contemporary electronic systems. Their compact 10 × 8 mm vertical footprint ensures they fit neatly into most PCB layouts without requiring extensive board real estate.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.