TDK Group achieved consolidated global net sales of 110.24 billion RMB in the 2025 fiscal year (April 1, 2024 – March 31, 2025), a year-on-year increase of 4.8%. The Chinese market contributed 54% of the total sales (59.624 billion RMB), firmly retaining its position as TDK’s largest single market. Operating profit hit 11.21 billion RMB (a 29.7% YoY rise), and net profit reached a record high of 8.358 billion RMB, surging 34.1% year-on-year. The gross profit margin rose from 28.7% to 31.2%. R&D investment increased by 34.3% YoY to 12.67 billion RMB, with an R&D intensity of 11.49%, demonstrating the company’s high emphasis on technological innovation.

The GCM and GRT series are both certified to the AEC-Q200 automotive grade with stringent test conditions, specially adapted for various on-board application scenarios, among which the GCM series has a higher product positioning. The GRM series is a general-purpose MLCC, mainly for consumer electronics and general industrial fields, and its reliability and cost setting are more suitable for non-automotive grade application scenarios. In actual product selection, precise matching should be carried out according to the safety level, working environment conditions and cost budget of specific applications.

This comprehensive guide covers Omron limit switches (position switches), including product overviews, scientific classifications (by function, actuator type, rated parameters), core applications across industrial automation, civil/transportation, and precision electronics, as well as practical selection steps, typical case studies, and common pitfalls. It highlights Omron’s strengths in reliability, environmental resistance, and adaptability, serving as a professional reference for engineers, procurement teams, and industry practitioners seeking to select or understand Omron limit switches.

Amid the 2026 memory chip market bubble, DRAM (DDR4/DDR5/HBM) faces severe shortages due to giants’ HBM capacity shift (prices surged 158%-307%), while NAND Flash maintains stable supply with moderate fluctuations and NOR Flash enjoys loose supply from expanded production. Procurement priority: HBM > DDR5 > DDR4 > NAND Flash > NOR Flash. Key strategies: Lock LTAs for DRAM, batch-purchase NAND Flash for cost control, sign fixed-price deals for NOR Flash, and leverage domestic alternatives (Longsys/CXMT) to cut 15-20% costs—avoid bubbles, MOQ risks, and substandard materials.

This article explores how long chips can be used after their Date Code (D/C) expires, clarifying the differences between shelf life, effective storage period, and service life. It emphasizes that storage conditions are the core factor affecting chip usability after D/C expiration, and analyzes different requirements for stored chips in various industries such as military, automotive, industrial control, and consumer electronics.