DIANYUANHigh-performance power ICs from Taiwan, built into Japanese products.
DIANYUAN is a Taiwan-based distributor for M3Tek power management ICs, serving manufacturers and trading houses in Japan. We handle datasheets, samples, design-in support, pricing, lead times and stock — in Japanese, Chinese or English.
We close the gap between a Taiwanese IC vendor and a Japanese design team.
A technical desk in Japanese
Spec questions, evaluation issues and failure analysis are handled in Japanese and passed straight to the design team in Taiwan. No waiting on translation.
Design-in support
Topology discussion, second-source selection, samples and evaluation boards, reference schematics — support through every step before mass production.
Stock, lead time, quality
Lead-time commitments, buffer stock and a single window for change notices (PCN) and quality issues, structured for Japanese purchasing practice.
Products we represent
The full part list is in the selector below. Datasheets and evaluation boards are available on request.
Product selection guide
The complete 2026 Q1 line-up — 197 part numbers, searchable by part number, equivalent, package or specification. Most parts are cross-referenced against common TI, MPS, Silergy and Richtek devices, so a drop-in can be evaluated straight away.
Download the catalogue
Print-ready A4. Includes the full 197-part selection table and the power system diagram.
Source: M3TEK Product Selection Guide 2026 Q1. Specifications are subject to change without notice — confirm against the latest datasheet before designing in. Datasheets and samples are available via the contact form below.
Where these parts go
Networking
Wi-Fi 6/7 routers, home gateways, cable modems, OLT and switches.
SSD & storage
Supercapacitor power-loss protection and controller-side rails.
USB Type-C / PD
Type-C cables, fast charging and power delivery control.
Appliances & industrial
Kitchen, beauty and home appliances, PC and mobile accessories, and industrial automation.
About M3 Technology (M3Tek)
Founded in 2010 and headquartered in Taipei, M3Tek is a fabless IC design company specialising in high-performance power management, listed on the Taiwan Stock Exchange (6799) in 2022.
Its strength is high-frequency, low-inductance, high-efficiency power conversion, with parts adopted into reference designs of major networking chipset vendors.
What DIANYUAN handles for you
- Datasheets and technical documents, explained in your language
- Samples and evaluation boards, plus evaluation support
- Quotes, lead times, buffer stock and the commercial route to supply
- Regular and technical meetings with the design team in Taiwan
How a project runs
Enquiry and technical review
Send us the application, input and output voltage, current, board space and target cost. We come back with candidate parts and indicative pricing.
Samples and design-in
We arrange samples and evaluation boards, review the schematic and measurement results, and set up a call with the design team where needed.
Production and supply
Production pricing and lead times are fixed, stock is managed against your forecast, and we stay the window for change notices and quality.
Frequently asked questions
Are samples free? Is there a minimum order quantity?
Evaluation samples are often free of charge once we know the application and expected volume, and we arrange evaluation boards alongside them. Production MOQ varies by device and is quoted case by case.
What about lead time and stock?
Standard parts ship from Taiwan in a matter of weeks. For ongoing programmes we hold buffer stock against your forecast so sudden increases can be covered.
Is technical support available in Japanese?
Yes. Specification questions, schematic review and failure analysis during evaluation are handled in Japanese, with meetings arranged with the design team in Taiwan when needed.
Can you help with second-source replacements?
Yes. Send us the part number in use, the input/output conditions and the package, and we will propose pin-compatible or equivalent candidates with a comparison sheet.
Tell us what you are designing.
Company details
Including a short spec (VIN / VOUT / current / volume) gets you a faster answer.
- COMPANY
- DIANYUAN CO., LTD.
- VAT NO.
- 69317593
- ADDRESS
- 3F., No. 4, Ln. 46, Guanghua Rd., Luzhou Dist., New Taipei City 247, Taiwan
- HOURS
- Mon–Fri 9:00–18:00 (UTC+8)
- CONTACT
- Enquiries are handled via the form above or by email. We reply within one business day.