ZXY-G14 Audio Transformer, 420 mH G14 Pot Core PCB Mount Transformer for Audio Circuits

1. Product Name

ZXY-G14 Audio Isolation Transformer, part number G2610: uses XP95 ferrite G14 pot core, wound with 0.12 mm self-bonding enameled wire, bonded with 316 anaerobic adhesive, equipped with BASS-1673 base, with three 0.7 mm pins and a central M2 stud. Inductance between pins 2-3 is 420 mH (10 kHz, 1 V), DC resistance is 19 Ω ±10% at 25 °C, diameter 16.3 mm, height 13.8 mm.

Marking. The model number is printed directly on the body, allowing installed board components to be identified without drawings. The stud is located on the axis of the pot core, which is the only position that does not cut into the magnetic path.

From the front, the component is a cylinder standing on a flat base, with three pins below and a stud above. The height is determined by core stack thickness, not the bobbin above the board, so a 13.8 mm height can accommodate a 420 mH winding, while traditional open-frame structures would require much more space.

2. Structure and Materials

Base. BASS-1673 carries three terminals, numbered 1, 2, 3 in the mold, with the M2 screw head located between them. The numbering corresponds to the electrical parameter table: the winding is specified between pins 2 and 3.

The base also serves as the reference surface for package dimensions. Its outline defines a 3.5 mm pin pitch and 7.0 mm row spacing, so a board designed for this base can accommodate any winding based on this base, making customization feasible without redesigning the layout each time.

Core. Two halves of XP95 ferrite core meet at the center pillar, completely enclosing the winding with only a slot for leads. The yellow tape on the assembly holds the two halves together during adhesive curing and protects the winding afterward.

Here, a pot core is chosen over RM or E cores for one reason: the enclosed structure. Almost all magnetic flux stays within the ferrite, so the component neither radiates interference to nearby high-impedance nodes nor picks up interference from adjacent components. This characteristic—not just inductance—is what audio circuits truly need.

3. Characteristics

XP95 ferrite G14 pot core. The pot core encloses the winding in a closed magnetic circuit, so nearly all flux remains inside the ferrite with minimal leakage to induce hum in adjacent circuits. XP95 is a material grade supplied by Xintong Magnetic, one set per unit.

0.12 mm self-bonding enameled wire. Winding is bonded with hot air, fixing turns in their original positions, so winding geometry is consistent between units. This is why inductance is repeatable rather than falling into a tolerance band.

Bonding rather than clamping. The core, coil, and base are bonded with 316 anaerobic adhesive. There are no clips that loosen under vibration, nor air gaps that change with handling.

Standard pitch three pins. Three 0.7 mm pins with 3.5 mm pitch and 7.0 mm row spacing can be directly inserted into existing footprint locations on most audio boards, requiring no additional brackets.

Central M2 fixing. An M2 x 16 pan head screw passes through the center of the pot core, with an M2 x 2 nut, allowing the component to be fixed to a chassis or bracket where board-only mounting is insufficient.

4. Advantages

Compact size. The 16.3 mm diameter and 13.8 mm height save board space in dense audio circuits, and the height is determined by the pot core, not the bobbin above the board.

Repeatable inductance. Since the winding is bonded in place and the core is bonded to the base, the geometry that determines 420 mH is fixed during assembly. Units do not drift in value during handling or equipment warm-up.

Direct replacement for existing footprints. The 3.5 mm pitch and 7.0 mm row spacing mean this component can replace an already-designed transformer without board modification.

Fixing method suitable for vibration environments. The central stud reduces the load on solder joints when the component is mounted on a moving chassis, which is the case in most non-desktop audio equipment.

Customizable per drawings. Winding, inductance value, base, and pin definitions can all be adjusted, so the same core and structure can serve multiple audio designs rather than a single catalog value.

5. Applications

Audio signal circuits. Where a compact 420 mH inductor is needed in the signal path, the pot core provides the required inductance without stray magnetic fields as open-frame cores do.

Low-frequency filtering and coupling. On PCB assemblies, for audio-frequency filtering or coupling positions between base pins 2-3.

Custom projects. Custom production per customer drawings or samples, suitable for equipment where standard winding values do not match.

Chassis-mounted audio modules. When both board space and mounting stability are critical, the central stud fixes the component to the chassis while pins fix it to the board.

On the board, terminals are inserted into through-holes, and the component body is suspended, so the stud can be accessed from above after board assembly. In assembly processes where the transformer is installed before the chassis closes, this sequence is critical.

6. Application Specifications

The following data are the certified specifications of G2610, version A/0, date 2026-08-28, reproduced as stated.

6.1 Product Specifications

6.2 Winding Data

6.3 Package and Body Dimensions

6.4 Materials and Construction

6.5 Quality and Testing

7. Packaging and Ordering

Each product is labeled with the model number before bagging. The device is ordered by model and part number (ZXY-G14 and G2610), and must be specified when winding values differ from the standard 420 mH; base, pin arrangement, and inductance can be customized per drawings for cases where standard specifications do not meet requirements.

Brand/Manufacturer: ZXY, Shenzhen Zhixiangyuan Electronics Co., Ltd. http://www.zxycoil.com