Smart Lock Keypad FPC
Dongguan Hongyi Precision Circuit Co., Ltd. specializes in R&D and mass production of consumer electronics FPCs, serving as a professional source manufacturer of flexible printed circuits. Leveraging a mature precision manufacturing system, the company focuses on custom FPC production for consumer electronics, delivering stable quality, precision fabrication, and efficient turnaround to provide one-stop FPC solutions for digital devices, smart wearables, home appliances, and related industries.

Key features
Mature design
Optional shielding layer for EMI suppression, reducing touch drift and false triggering;
Reliable quality
Excellent temperature and humidity resistance; high flex-life performance;
Compact layout
Ultra-thin flexible PI substrate enabling irregular routing and conformal mounting on curved surfaces;
Stable transmission
Precision fine-pitch traces with controlled impedance to ensure touch signal integrity;
Specifications
- Layers
- 1 – 2
- Minimum trace/space
- 50 / 50 µm
- Base material
- PI 25 / 50 µm
- Copper thickness
- 35 / 18 µm
- Stiffener options
- PI / stainless steel stiffener
- Outline tolerance
- ± 0.10 mm
- Operating temperature
- -40℃ ~ 105℃
Typical applications
- Smart lock touch key
- Mobile phone keypad
- Industrial control keypad
- Handheld PAD keypad
Talk to an engineer
Share your Gerber files or specification and our engineering team will assess manufacturability, advise on process and stack-up, then move your project through sampling and volume production to automotive standards.
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