As a global leader in power management technology, International Rectifier (IR) has launched two new 40V COOLiRFET™ power MOSFETs — AUIRFN8459 and AUIRFN8458 — specifically designed for compact, high-current automotive applications such as motor control and body systems. These devices offer low on-resistance (Rds(on)) to meet the growing demand for efficiency and space-saving solutions.
The AUIRFN8459 and AUIRFN8458 are the first two products in IR’s automotive 5x6mm dual PQFN power MOSFET family, utilizing the company's most advanced COOLiRFET™ 40V channel technology. The AUIRFN8459 delivers exceptional performance with an ultra-low on-resistance of 5.9mΩ per channel and can handle up to 50A, making it ideal for high-performance automotive applications.
Pan Dawei, Vice President of Sales for IR Asia Pacific, stated: “Compared to traditional DPAK (TO-252) packages, IR’s AUIRFN8459 and AUIRFN8458 40V 5x6mm dual PQFN COOLiRFETâ„¢ devices are more than 50% smaller. They offer ultra-low package resistance, inductance, and on-resistance, making them perfect for 12V automotive systems that require high efficiency, high power density, and reduced space.â€
When compared to SO-8 packages, the new 5x6mm dual PQFN COOLiRFETâ„¢ device provides a shorter thermal path to the board, improved thermal performance, and higher efficiency. It also offers a lower overall system cost, making it a compelling choice for modern automotive designs.
All IR automotive MOSFETs adhere to the zero-defect quality concept required by IR. Each device undergoes dynamic and static device averaging, along with 100% automated wafer-level visual inspection. Additionally, they meet the AEC-Q101 standard, ensuring that on-resistance variation does not exceed 20% after 1,000 temperature cycles.
The new devices are environmentally friendly, lead-free, and RoHS compliant, meeting all necessary industry standards for sustainability and safety.
Specification:
Part Number | Package | V(BR)DSS (V) | Max On-Resistance (mΩ) @ 10V | Max ID @ 25°C (A) | QG Typical (nC)
AUIRFN8459TR | 5x6mm Dual PQFN | 40V | 5.9mΩ | 50A | 40nC
AUIRFN8458TR | 5x6mm Dual PQFN | 40V | 10mΩ | 43A | 22nC
The product is currently available for bulk orders. For detailed specifications, visit the IR website or request Spice models directly from the manufacturer.
About International Rectifier
International Rectifier (IR), listed on NYSE under the ticker IRF, is a global leader in power semiconductors and management solutions. IR's analog and mixed-signal ICs, advanced circuit devices, and integrated power systems are widely used to enhance computing performance and reduce energy consumption in motors, which are among the largest energy consumers worldwide. IR is recognized globally as a benchmark provider in power management for computers, energy-efficient appliances, lighting, automotive, satellite, aerospace, and defense systems.
Founded in 1947, IR is based in Los Angeles, USA, with offices in 20 countries. You can find more information about IR on their global website or the China site.
Patents and Trademarks
IR® and COOLiRFET™ are registered trademarks of International Rectifier Corporation. Other product names mentioned here are the trademarks of their respective owners.
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