Shah Electronics

The Inductor Coil (Choke) is a high-performance magnetic component designed to store energy and suppress unwanted high-frequency noise in electronic circuits. Constructed using enameled copper wire wound around a ferrite or iron core, it provides stable inductance, low resistance, and excellent frequency performance.

Inductor chokes are essential for filtering, energy storage, and interference suppression in both AC and DC circuits. They are widely used in Switch Mode Power Supplies (SMPS), inverters, LED drivers, and power conditioning systems to ensure efficient energy transfer and improved electromagnetic compatibility (EMC).

• High energy storage capability and low core loss

• Excellent suppression of EMI and RFI noise

• Wide range of inductance and current ratings

• Compact and thermally stable design

• High Q-factor with minimal temperature drift

• Available in toroidal, drum, EE, EI, and rod core types

• Customizable wire gauge, mounting style, and inductance value

• RoHS compliant and meets IEC / UL standards

• Switch Mode Power Supplies (SMPS)

• DC-DC Converters and Power Filters

• Inverters and Battery Chargers

• LED Drivers and Lighting Systems

• EMI / RFI Suppression Circuits

• Audio, Communication, and Control Systems

The Choke Coil Inductor is a high-efficiency magnetic component designed to block or filter high-frequency AC noise while allowing smooth DC or low-frequency current to pass. Constructed using high-quality ferrite or iron powder cores with precision-wound copper coils, it provides superior inductance stability, minimal power loss, and excellent EMI suppression.

Choke coils are essential in power electronics, communication systems, and industrial controls, where clean power and stable operation are required. They effectively reduce electromagnetic interference (EMI) and radio frequency interference (RFI), improving the overall reliability and efficiency of the equipment.

• Excellent suppression of EMI / RFI noise

• High inductance with low DC resistance

• High current handling capability

• Compact and thermally stable design

• Available in toroidal, drum, rod, EE, and EI core types

• Customizable inductance, current rating, and wire gauge

• Low core loss and superior magnetic efficiency

• RoHS compliant and conforms to IEC / UL safety standards

• Switch Mode Power Supplies (SMPS)

• Inverters and Battery Chargers

• DC-DC Converters and Power Filters

• LED Drivers and Lighting Systems

• EMI / RFI Filter Circuits

• Industrial and Automotive Electronics

• Communication and Control Systems

The Power / EMI Suppression Inductor is a robust and efficient magnetic component designed to provide energy storage and electromagnetic interference (EMI) suppression in electronic circuits. Engineered using high-permeability ferrite or iron powder cores, this inductor minimizes high-frequency noise and ripple while ensuring stable DC current flow.

It plays a key role in filtering, energy storage, and noise reduction in Switch Mode Power Supplies (SMPS), DC-DC converters, LED drivers, EV chargers, and industrial control systems. The advanced construction offers low core loss, high inductance stability, and excellent thermal performance, making it suitable for both high-frequency and high-current applications.

• Excellent suppression of EMI and RFI noise

• High saturation current and energy storage capacity

• Low core loss and high efficiency

• Compact design with superior heat dissipation

• Stable performance across a wide temperature range

• Available in toroidal, drum, EE, and rod core configurations

• Customizable inductance, wire gauge, and mounting type

• RoHS compliant and meets IEC / UL safety standards

• Switch Mode Power Supplies (SMPS)

• DC-DC Converters and Power Filters

• LED Drivers and Ballasts

• Inverters and Battery Chargers

• EMI / RFI Noise Suppression Circuits

• Automotive and Industrial Control Systems

The Axial Inductor is a compact, high-performance wire-wound inductor designed for general-purpose and power applications. Its axial lead configuration allows easy insertion into through-hole PCBs, ensuring strong mechanical stability and efficient current handling.

Constructed with enameled copper wire wound on ferrite or iron cores, these inductors provide high inductance accuracy, low DC resistance, and superior frequency stability. They are widely used for filtering, energy storage, noise suppression, and tuning in analog and power circuits.

The axial inductor’s robust design and excellent reliability make it suitable for SMPS circuits, power supplies, audio systems, and communication equipment.

• High Q-factor and excellent frequency stability

• Low DC resistance for improved efficiency

• Compact axial lead structure for easy PCB mounting

• High current handling capability

• Wide inductance range available

• Excellent thermal and electrical stability

• Available with ferrite, iron, or carbonyl cores

• RoHS compliant and conforms to IEC / UL standards

• Power Supply Filtering and Energy Storage

• Signal and Audio Frequency Circuits

• DC-DC Converter and SMPS Circuits

• EMI / RFI Noise Suppression

• Communication and RF Equipment

• Automotive and Consumer Electronics

The Balance Coil Inductor is a precision-engineered magnetic component designed to suppress common-mode noise and improve signal balance in communication and power circuits. It ensures stable impedance and enhanced electromagnetic compatibility (EMC) by filtering unwanted interference without affecting the desired signal.

Constructed with high-permeability ferrite cores and bifilar or multi-layer windings, the balance coil offers excellent noise attenuation and phase balance characteristics. It is widely used in telecommunication systems, audio circuits, power line filters, and data transmission equipment where signal integrity and noise immunity are critical.

• Excellent suppression of common-mode and differential-mode noise

• Ensures balanced signal transmission and reduced crosstalk

• Wide operating frequency range

• High impedance for noise attenuation while maintaining low DC resistance

• Compact, reliable, and thermally stable design

• Customizable inductance, current rating, and winding configuration

• Available in toroidal, EE, and drum core constructions

• RoHS compliant and designed per IEC / UL standards

• Audio and Video Equipment

• Telecommunication and Data Line Circuits

• SMPS and DC-DC Converters

• EMI / RFI Filter Circuits

• Computer Motherboards and Network Devices

• Instrumentation and Measurement Equipment

The Air Core Spring Coil Inductor is a precision-engineered inductor designed for high-frequency and RF applications where low core loss, high Q-factor, and linear inductance characteristics are essential. Unlike ferrite or iron-core inductors, these coils operate without a magnetic core, eliminating core saturation and hysteresis losses, making them ideal for use in tuned circuits, filters, antennas, and oscillators.

Manufactured from high-conductivity copper or tinned copper wire, these inductors feature air-core, helical spring structures that ensure stable inductance and minimal parasitic capacitance. Their open structure also provides excellent thermal dissipation and mechanical stability even at high operating frequencies.

• Coreless design ensures zero magnetic saturation

• High Q-factor for superior frequency response

• Low loss and high linearity across a wide frequency range

• Stable inductance with minimal parasitic effects

• Available in cylindrical, conical, and custom spring shapes

• Excellent thermal stability and durability

• Customizable inductance range, diameter, and wire gauge

• Suitable for both through-hole and surface mount (SMD) configurations

• RF and Microwave Circuits

• High-Frequency Filters and Oscillators

• Tuned Circuits and Matching Networks

• Antenna Loading and Impedance Matching

• Signal Amplifiers and Transmitters

• Wireless Power Transmission Systems