Talk to salesReply within 12 hours on business days
Exporting since 2010 · Verified exporter

Trusted by buyers in 39 countries

Trade termsReply within 12 hours on business days
Minimum order1,000 pcs
Lead time20 – 40 days
Payment termsT/T · L/C at sight
IncotermsFOB · CIF · CFR
Port of loadingShenzhen · Shanghai
HS code8534.00
CertificationsCE · RoHS · FCC · UL
How an order runs

From order to arrival, five steps in writing

Each step comes with its timing and documents, so you can plan production and customs.

  1. Order confirmed1,000 pcs
  2. Deposit receivedT/T · L/C at sight
  3. Production & QC20 – 40 days
  4. Loading & customsShenzhen · Shanghai
  5. Documents & dispatchCI · PL · CO · B/L
About Us

Ruisi · Electronic modules and components

Ruisi develops and manufactures power modules, sensors and control boards on six SMT lines with its own reliability laboratory, shipping 26 million units a year into industrial control, smart home and new energy applications.

  • Client outcomes come first
  • Delivery quality is the baseline, not the goal
  • Long-term thinking over short-term gain
  • We keep sharpening our craft
Founded2010
Team720 staff
Scale57,000 m²
HQNo. 6 Ruisi
Products

A product range built for real scenarios

Every item is validated in real use and can be adapted to your specification.

AC-DC power modules
Main line

AC-DC power modules

5 W to 300 W with wide input, high efficiency and low ripple, certified for industrial and appliance use.

  • Stable supply
  • Technical support
  • Custom specs
Request Details
DC-DC converters
Industrial grade

DC-DC converters

Isolated and non-isolated series rated from −40 °C to +85 °C for industrial control, telecoms and vehicle use.

  • Stable supply
  • Technical support
  • Custom specs
Request Details
Temperature and humidity sensors
High precision

Temperature and humidity sensors

Digital output modules accurate to ±2% RH and ±0.3 °C for environmental monitoring and smart home products.

  • Stable supply
  • Technical support
  • Custom specs
Request Details
Motor control boards
Custom design

Motor control boards

Brushless motor drive and control boards with field-oriented control and several communication interfaces.

  • Stable supply
  • Technical support
  • Custom specs
Request Details
Smart home control boards
IoT

Smart home control boards

Wi-Fi, Bluetooth and Zigbee boards with cloud platform integration, including firmware and app support.

  • Stable supply
  • Technical support
  • Custom specs
Request Details
PCBA contract manufacturing
One-stop

PCBA contract manufacturing

Component sourcing, SMT placement, through-hole assembly and test, suited to small and medium volumes.

  • Stable supply
  • Technical support
  • Custom specs
Request Details
Certifications

Qualifications that define what we can deliver

National High-Tech Enterprise2016
ISO 9001 / IATF 16949 certified2019
Provincial engineering technology centre2021
Specialised SME accreditation2022
Our Work

Selected projects

A look at how we solved problems for clients like you.

Testimonials

What our clients say matters more

Three years in, what stands out is how little we have to chase them. They do what they promise, and they answer quickly when something comes up.
Wang JianguoClient · Head of Procurement
They are not the cheapest on the line, but the total cost works out lower. Far less rework and far fewer meetings, which matters over years.
Li HaiyanClient · General Manager
Technical conversations are smooth — they understand the application, not just the product. Our requirements are understood accurately, which is rare.
Zhang PengClient · Technical Director
FAQ

Things you may want to know

Still have questions? Contact us — we reply within one business hour.

Which regions do you cover?

We serve clients nationwide and handle cross-region delivery. Tell us your location and requirements and we will assign the right team.

How do I get a quotation?

Send us your requirement, quantity and delivery expectation through the form or by phone. We issue a formal quotation within 1–2 business days.

Can you provide samples?

Yes. Depending on your requirement we can send samples or arrange a small trial run so you can validate performance in real use.

How is after-sales support handled?

A dedicated after-sales team provides support through the whole service period, with response times stated in the contract.

Can we work together long term?

Yes. We build long-term relationships, and most clients have worked with us for over three years. Annual agreements can fix price, capacity and quality terms.

Every board has to survive the ageing test

Tell us what you need — we will route it to the right specialist within one business day. +86 512 6888 9900

Contact Us

Tell us what you need, we will route it to the right person

Product enquiry, solution review or partnership — just leave a message.

Mobile / WeChat+86 139 6258 6688
AddressNo. 6 Ruisi Road, Electronic Information Industrial Park, Xiangcheng District, Suzhou, Jiangsu, China
Business hoursMon – Sat 8:30 – 18:00 (GMT+8)

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