Overview

The TOXU KC.IG.00155 is a compact round wireless charging coil designed for integration into compatible handheld devices, charging handles and customized inductive power hardware.

The coil has a nominal inductance of 12.5uH with a tolerance of +/-10%. Its circular structure measures 37 +/-0.8mm in outer diameter and 20 +/-0.8mm in inner diameter.

A nanocrystalline backing layer is integrated behind the coil to support magnetic flux management within the intended equipment design. The backing surface includes self-adhesive material for convenient internal mounting.

The complete coil has a maximum thickness of 1.1mm including the adhesive layer, helping support integration into equipment with limited internal installation space.

Two approximately 50 +/-3mm leads are provided for connection to a compatible wireless charging circuit. Final electrical performance depends on the charging IC, circuit design, matching components, coil alignment, transmission distance, enclosure material and paired charging coil.

The available engineering drawing confirms the inductance, nanocrystalline backing, adhesive structure and mechanical dimensions. It does not specify operating frequency, Q value, DC resistance, rated current, charging power, wireless charging protocol or transmitter and receiver compatibility.

Key Features

12.5uH Nominal Inductance

Provides a specified nominal inductance of 12.5uH with a tolerance of +/-10% for compatible wireless charging circuit designs.

Round Coil Structure

The circular coil measures 37 +/-0.8mm in outer diameter and 20 +/-0.8mm in inner diameter.

Nanocrystalline Backing

The integrated nanocrystalline backing supports magnetic flux management when the coil is installed in a compatible charging system.

Self-Adhesive Installation

The rear adhesive surface includes a release tab to simplify positioning and internal installation during equipment assembly.

Low-Profile Design

The complete structure has a maximum thickness of 1.1mm including the adhesive layer, supporting compact equipment integration.

Pre-Attached Connection Leads

Two 50 +/-3mm leads are provided for connection to the intended wireless charging circuit.

Custom Project Support

Inductance, coil dimensions, lead length, backing structure, adhesive configuration and packaging can be evaluated according to project requirements and order quantity.

Technical Specifications

Dimension Drawing

The KC.IG.00155 uses a circular coil structure with an outer diameter of 37 +/-0.8mm, an inner diameter of 20 +/-0.8mm and a maximum overall thickness of 1.1mm including the adhesive layer.

Two connection leads extend approximately 50 +/-3mm from the coil body. The rear surface includes self-adhesive material with a release tab for installation.

All coil dimensions, lead positions, tolerances and installation clearances should be confirmed against the latest approved engineering drawing before enclosure design or volume production.

Applications

Wireless Charging Handles

Handheld Electronic Devices

Personal Care Equipment

Portable Electronic Equipment

Smart Control Handles

Rechargeable Consumer Devices

Compact Inductive Power Systems

Embedded Wireless Charging Hardware

Customized Charging Equipment

System Integration

The KC.IG.00155 is intended for integration with a compatible wireless charging circuit and a properly matched paired coil.

Wireless Charging Coil -> Matching Circuit -> Wireless Charging IC -> Battery Charging Circuit

Before selection, confirm that the nominal inductance of 12.5uH and the coil dimensions are compatible with the wireless charging IC and circuit design.

The coil should be installed in the position defined by the equipment design. Coil alignment, separation distance, enclosure thickness and the position of nearby metal parts can materially affect charging efficiency and thermal performance.

The nanocrystalline backing should face the intended internal side according to the approved assembly design. The adhesive surface must be installed on a clean, dry and flat mounting area.

Avoid folding, crushing or sharply bending the coil body. Do not pull the connection leads excessively during assembly, as mechanical stress may affect the coil or lead connection.

The paired charging coil, charging IC, matching circuit, battery requirements and target charging power should be tested together as a complete system.

Sample testing inside the actual enclosure is required before volume production. Inductance alone cannot confirm charging power, efficiency, temperature rise or compatibility with a specific wireless charging platform.

Why Choose TOXU

TOXU supplies wireless charging coils, NFC antenna coils, embedded antennas, GNSS antennas, cellular antennas, Wi-Fi antennas, RF cable assemblies, coaxial connectors, modules and customized electronic hardware for equipment manufacturers and system integrators.

Our team can assist with coil dimension confirmation, inductance selection, backing structure, lead configuration, installation evaluation, sample preparation and complete-device testing.

For volume-order projects, TOXU can evaluate customized inductance values, coil dimensions, lead lengths, backing materials, adhesive structures, labels and packaging.

With IATF16949 and ISO9001-certified manufacturing capabilities, TOXU supports component assembly, incoming material inspection, dimensional control, electrical testing, quality management and stable volume-order delivery.

FAQ

Q: What is the inductance of KC.IG.00155?

A: The specified nominal inductance is 12.5uH with a tolerance of +/-10%.

Q: What are the coil dimensions?

A: The coil has an outer diameter of 37 +/-0.8mm, an inner diameter of 20 +/-0.8mm and a maximum thickness of 1.1mm including the adhesive.

Q: Does the coil include magnetic backing?

A: Yes. The engineering drawing specifies a nanocrystalline backing layer.

Q: Does it include adhesive for installation?

A: Yes. The rear surface includes self-adhesive material with a release tab.

Q: How long are the connection leads?

A: The specified lead length is 50 +/-3mm.

Q: Is this an NFC antenna?

A: No. The supplied engineering drawing identifies KC.IG.00155 as a charging coil. It should not be marketed as an NFC communication antenna.

Q: Does it support the Qi wireless charging standard?

A: The available drawing does not specify a wireless charging protocol. Compatibility must be confirmed according to the charging IC, operating frequency, matching circuit, paired coil and complete-system test results.

Q: What charging power does the coil support?

A: Charging power is not specified in the available drawing. It depends on the charging circuit, coil pairing, operating frequency, alignment, transmission distance and thermal design.

Q: Can the coil dimensions and lead length be customized?

A: Coil dimensions, inductance, lead length, backing structure and adhesive configuration can be evaluated according to project requirements and order quantity.

Q: Is sample testing necessary?

A: Yes. The coil must be tested with the actual charging IC, matching circuit, paired coil, enclosure, battery and intended charging conditions before volume production.