Murata Launches L Cancel Transformer for Enhanced Power Supply Noise Suppression
**Murata Unveils Groundbreaking L Cancel Transformer for Enhanced Power Supply Noise Suppression**
Murata has made a significant leap in electronic component technology with the introduction of its innovative L Cancel Transformer (LCT). This pioneering product is the first of its kind, designed to neutralize the equivalent series inductance (ESL) of a capacitor, thereby optimizing its noise-reducing capabilities. Leveraging Murata’s exclusive ceramic multilayer technology, this breakthrough solution empowers engineers to minimize system noise while simultaneously reducing costs and component count.
BonChip Electronics, as an authorized distributor for Murata, is proud to offer the complete range of Murata products, including the newly launched LCT. We provide high-quality service, comprehensive product sales and ordering solutions, and the most convenient delivery options to meet your demands seamlessly.
### Addressing the Growing Challenge of Electromagnetic Noise
As the demand for more compact and highly functional electronics continues to rise, managing electromagnetic noise has become a crucial challenge for many industries. Capacitors are commonly employed between the power supply line and ground as a noise countermeasure. However, this approach is not without its limitations. The effectiveness of noise removal by a capacitor is at its peak when the capacitor’s impedance is at its lowest. Unfortunately, the impedance of a capacitor can increase due to its ESL, particularly at frequencies beyond the capacitor's self-resonant frequency, thus diminishing its noise-cancellation efficiency. The common practice to counter this involves connecting multiple capacitors in parallel to collectively reduce impedance, which in turn increases the Bill of Material (BoM) component count and overall costs.
### The Revolutionary L Cancel Transformer
Murata’s LCT offers a revolutionary solution to the ongoing challenge of managing power supply noise and capacitor component count. Specifically engineered for noise suppression in the frequency range from a few MHz to 1 GHz, the LCT utilizes negative mutual inductance to reduce the ESL of noise-reducing capacitors. This enhancement significantly increases the capacitors’ effectiveness and thereby reduces the number of required capacitors dramatically.
### Advanced Multilayer Technology
Constructed using non-magnetic ceramic multilayer technology, the LCT ensures stable negative inductance and low DC resistance (a maximum of 55 milli-ohms), even under varying current conditions. This makes it suitable for a broad spectrum of applications, including consumer electronics, industrial equipment, and healthcare products. This breakthrough is a testament to Murata’s extensive expertise in multilayer ceramic technology and redefines the landscape of power supply noise reduction circuit design, addressing a long-standing electronic design challenge.
### Performance and Specifications
Murata’s LCT can operate at temperatures up to 125ºC, and with its stable negative inductance capabilities, it supports currents up to 3 A without exhibiting a DC superposition characteristic. The surface mount device (SMD) measures a compact 2.0 x 1.25 x 0.95 mm and is available in tape and reel packaging for easy integration into various applications.
### Expert Commentary
“Murata’s new LCT is a true innovation that does not merely improve on existing solutions but redefines what is considered standard in noise suppression components by radically transforming the entire concept,” said Masamichi Ando, Vice President of the Business Incubation Center Corporate Technology & Business Development Unit at Murata. “With this revolutionary component, engineers will be able to reduce component count, system complexity, and costs, all while further miniaturizing their solutions and reducing environmental impact through lower material consumption.”
BonChip Electronics stands ready to deliver this cutting-edge technology to customers, ensuring the highest level of support and service throughout the purchasing and integration process.
