XS4400 - 1/2W Quad-filar 1:1:1:1 matching transformer.
XS4400 - 1/2W Quad-filar 1:1:1:1 matching transformer.

EDCOR Electronics Corporation

XS4400 - 1/2W Quad-filar 1:1:1:1 matching transformer.

Sale price$42.09 USD

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SKU: XS4400

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Mathematically designed to produce a turns ratio of 1:1:1:1 for line level signals.

Primary/Secondary (Input/Output)
The transformer has four identical windings with a maximum voltage of 7.5Vrms.

Magnet Wire
All units are wound with the finest virgin copper magnet wire. All windings use heavy insulated wire to provide excellent manufacturing yield, lower customer cost and superior life.

The Core
EDCOR uses the finest M6 line grain oriented steel cores. Each unit is hand stacked to assure at least 92% stack.

The Bobbin
Injection molded Nylon 6/6 with the addition of 30%-35% glass fibers. The addition of glass fibers allows a higher heat deflection temperature and it brings the material to a class HB UL temperature classification.

This unit has an outer copper shielding around winding and core to help eliminate outside interference.

This unit is designed for mounting on a printed circuit board. For footprint and suggested hole and pad size, see dimensional drawing.


Wattage 0.5W
Input Maximum Voltage 7.5Vrms
Input Line Level
Output Line Level
DC Resistance 116 Ω (each winding)
Turns Ratio 1:1:1:1
Winding Configuration Quad-filar Winding
Frequency Response 20~20K Hz., <1dBu
THD+Noise <0.05% @ 1K Hz.
Insertion Loss <0.5 dB
Shielding Tin-plated copper EMI shielding tape
Bobbin Material Nylon 6/6 GF-30
Flammability Rating Class HB
Coil Finish Wrapping Polyester Film Electrical Insulating Tape
Core Size
EI63 (0.625" x 0.625")
Core Material M-6 29 ga. grain oriented lamination steel
Secondary Insulation Clear air dry polyester varnish
Termination 12 pin PCB
Printed circuit board (PCB)
Mounting Orientation Laydown
Weight 0.5 lbs.
Compliance RoHS REACH
Dimensional Drawing 15000-EI625-625-P12
3D Model (STEP)