High frequency inductors: HDTC Ceramic High Q Series & HTF Ferrite High Q Series

2024-11-24

What is an inductor and high frequency inductors?

An inductor is a passive electrical component that opposes sudden changes in current. Inductors are also known as coils or chokes. The electrical symbol for an inductor is L.

High frequency inductors are characterized by low losses and a high quality factor (Q) to handle the rapid changes in current at high frequencies ranging from megahertz (MHz) to gigahertz (GHz). These inductors have low parasitic capacitance and resistance, allowing them to handle high-speed signals with minimal loss. They are constructed using advanced materials like ferrite or powdered iron cores to enhance performance.

Does HONGDA Capacitors supply high frequency inductors?

HONGDA Capacitors, as the leading inductors factor in China, produce various inductors,  including High Frequency Type, Wire Wound, Molding Type, coil Type, Multilayer ceramic Type, Multilayer Ferrite Type and so on.

The 2 main high frequency inductors are as below:

Chip Inductor Precision Winding (High Q) Type

① HDTC Ceramic High Q Series

② HTF Ferrite High Q Series

What’s the features of HDTC Ceramic High Q Series and HTF Ferrite High Q Series?

The key features of these 2 high frequency inductors:

£ Low ESR (Equivalent Series Resistance): ESR is the internal resistance of an inductor that causes power loss and heat generation. High-frequency inductors have low ESR to minimize these losses and ensure efficient operation, especially in high-speed or high-frequency applications.

£ High Q Factor: The Q factor (Quality Factor) is a measure of an inductor’s efficiency. A high Q factor indicates that the inductor stores and releases energy efficiently with minimal loss. High-frequency inductors are designed to achieve high Q values to maintain signal integrity in high-speed circuits.

£ Compact Design: As high-frequency circuits require small, compact components to fit into space-constrained designs, high-frequency inductors are often made with small sizes while still providing high inductance values.

£ Temperature Stability: High-frequency inductors need to maintain stable performance in a variety of environmental conditions, including temperature fluctuations. This stability is crucial for applications in automotive, aerospace, and other industries with harsh environmental conditions.

What’s the main applications of these high frequency inductors?

The high frequency inductors are widely used on Mobile phone antennas, Wireless communication devices, GPS modules, Radar systems etc.

Main functions: Impedance matching: Adjusting the impedance of a circuit to optimize signal transmission, particularly in antenna systems.

RF filtering: Essential for signal filtering, impedance matching, and noise suppression in wireless communication devices.

Circuit tuning: Adjusting the resonant frequency of a circuit by creating tuned LC (inductor-capacitor) circuits

What’s the main difference of HDTC Ceramic High Q Series and HTF Ferrite High Q Series?

HDTC Ceramic High Q Series: Q value increases with frequency, and is small at frequencies below 100 MHz. Ceramic core inductors are often used in high-frequency applications that require low inductance values, high Q values, and low core losses.

Sizes from 0402(1005), (0603)1608,(0805)2012 available.

HDTC Ceramic High Q Series perfectly replace Murata LQW in industrial, commercial level.

Murata's P/N                           HONGDA's P/N

LQW15AN3N9B00D                     HDTC0402H3N9SST-LF

LQW15AN8N2G00D                     HDTC0402C8N2JST-LF

LQW18AN24NG00D                     HDTC0603C24NJST-LF

HTF Ferrite High Q Series:

Q value decreases with frequency, and is large at frequencies below MHz. Ferrite beads are passive components that are used to attenuate high-frequency EMI noise. They are designed to be lossy at frequencies where noise is expected.

Sizes from 0402/0603/0805/1008/1210 available

They are typically used on Mobile communications, wireless LANs, GPs,satellite Applications etc.

HONGDA Capacitors, offer you quality inductors, perfectly replace Murata TDK, prices are 30%~80% lower than them, lead time: 5weeks normally.

Welcome to send your demand to sandy@hongdacap.com.hk, Mobile: +86 134 1426 6962((Wechat/Whatsapp); We can help you do cross and send you most cost-effective parts. Free samples are also available for good projects.