Vishay's New MELF Resistors: A Leap in Precision and Efficiency

Vishay Intertechnology Enhances MELF Resistor Range

Vishay Intertechnology, Inc. (NYSE: VSH) has recently introduced a notable enhancement to its lineup of precision thin film MELF resistors. This new range includes the AEC-Q200 qualified MMU 0102, MMA 0204, and MMB 0207 versions. Designed specifically for applications demanding high stability and reliability, these innovative resistors stand out in the electronics industry.

Significant Advancements in Resistance Values

One of the key improvements presented in these MELF resistors is their superior resistance capability. For instance, a device from the 0204 case size that previously had a maximum resistance of 511 k? now offers an impressive 5.11 M? while maintaining the same TCR of ± 25 ppm/K and 0.1% tolerance. For those requiring even tighter specifications, the precision MMA 0204 can achieve 1 M? at an even lower TCR of ± 15 ppm/K. This means a single resistor can now replace multiple lower-value components, resulting in significant space savings and simplification of design.

Applications and Benefits of Enhanced Resistors

These precision thin film resistors are built using advanced metal film technology that ensures not only reliability but also versatility in numerous applications. They are particularly effective for current sensing in critical power supplies, which are essential for automotive ADAS, LIDAR, connectivity, and camera systems. Additionally, they find use in various fields including telecommunications, industrial settings, and medical devices.

Key Features of the New Resistors

The new MELF resistors boast intrinsic sulfur resistance and are designed to exceed stability class 0.05. Their robust construction allows for seamless processing via automatic SMD assembly systems, making them a preferred choice for manufacturers. Importantly, these lead (Pb)-free components adhere to RoHS standards and are halogen-free, aligning with eco-friendly manufacturing practices.

Device Specifications

The device specifications for the MELF resistor series highlight their versatility. The MMU 0102, MMA 0204, and MMB 0207 resistors cater to a variety of resistance ranges from 22 ? to an even higher resistance of 10 M?, depending on the model. Current tolerances range from ± 0.1% to ± 0.5%, with temperature coefficients (TCR) available at ± 25 ppm/K and ± 15 ppm/K.

Performance Ratings

Further enhancing their allure, the resistors come with rated power dissipation varying with each model, ranging from 0.2 W to 0.4 W. They can also handle operating voltages between 150 V up to 350 V and maintain operational stability across a temperature range from -55°C to +125°C.

Availability of New Resistors

Samples and full production quantities of these precision thin film MELF resistors are currently available with expected lead times of approximately 12 weeks. Their release marks a significant advancement for designers seeking improved efficiency and reduced component counts in their electronic designs.

Vishay Intertechnology: A Leader in Electronic Solutions

Vishay is globally recognized for its extensive portfolio of discrete semiconductors and passive electronic components, paving the way for innovative design across numerous sectors including automotive, medical, and consumer electronics. It is a Fortune 1000 company, known for embodying the ethos of "The DNA of tech." As a leader in technology solutions, Vishay provides essential components required for modern electronic devices.

Frequently Asked Questions

What is the significance of the new MELF resistors?

The new MELF resistors offer enhanced resistance capabilities, allowing them to replace multiple components while saving space and reducing costs.

What applications can benefit from these MELF resistors?

They are ideal for automotive ADAS, LIDAR systems, telecommunications, industrial use, and medical devices requiring reliable power sensing.

What are the unique features of Vishay's MELF resistors?

The resistors are RoHS-compliant, halogen-free, have excellent stability, and feature intrinsic sulfur resistance, making them robust for various applications.

How do the TCR values impact resistor performance?

TCR values indicate how much the resistance changes with temperature; lower TCR values improve stability and accuracy in precision applications.

Where can I find more information about Vishay's products?

For additional details, please visit Vishay's official website for their extensive product portfolio and datasheets.

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