MCUs
General-purpose and low-power microcontrollers for consumer, industrial and IoT designs.
Domestic line
Domestic Chinese IC second sources
The same independent-sourcing discipline, applied to Chinese domestic IC lines. When a global brand part is allocated, end-of-life or over budget, a verified domestic second source can keep your production line moving.
What it is
Domestic IC lines from Chinese manufacturers, supplied as second sources for mainstream global-brand parts. We evaluate each line on its own merits — datasheet, electrical parameters, package and pinout — and only propose it when the match is real.
What it is not
Not a rebrand, not a copy, and not a shortcut. We do not present domestic parts as the original brand, and we do not quote a domestic alternative without checking compatibility first. The customer always decides with full information.
Categories we cover
Power management
DC/DC converters, LDOs, PMICs and battery management for cost-sensitive boards.
Analog & signal chain
Op amps, comparators, ADCs and interface ICs for measurement and control.
Discretes & memory
MOSFETs, diodes, transistors and memory for mainstream applications.
Specific domestic manufacturers and part numbers are confirmed case by case with the customer — we do not publish a catalogue of unverified claims.
How we verify a second source
- 1
Datasheet check
Electrical parameters and operating conditions compared with the original part.
- 2
Pin & package
Pinout and package compatibility confirmed — drop-in where claimed.
- 3
Lot provenance
Manufacturer, lot and date code documented before any quote.
- 4
Your decision
You get both options — original and domestic — with the comparison in writing.
When a second source makes sense
- ◆ The original part is allocated or has a long lead time and your line cannot wait.
- ◆ The original part is end-of-life and the design needs a pin-compatible replacement.
- ◆ Cost pressure on a high-volume product where a verified alternative cuts the BOM cost.
- ◆ A new design where the domestic part meets the spec and the budget from day one.
Tell us the part you need an alternative for.
Send the original part number and quantity — we check domestic options and report back.