I. Company Introduction
We are a high-tech enterprise deeply engaged in the field of precision electronic connectors, specializing in the R&D, production and sales of precision electronic components including FFC/FPC flat cables, matching sockets and tact switches. We have established a full-chain independent operation system from product design, mold development to mass production. Equipped with 8 intelligent production lines integrating precision stamping, high-speed injection molding, automated SMT and multi-dimensional testing equipment, the company realizes fully automatic control of core processes. The monthly production capacity of tact switches exceeds 8 million pieces, enabling efficient response to bulk orders and personalized customization demands.
The company strictly implements the ISO9001 quality management system and IATF 16949 automotive industry standards. All products have passed international environmental certifications such as RoHS, REACH and Halogen-free, with complete quality traceability files established for each batch. With sophisticated manufacturing techniques, stable product performance and full-lifecycle technical services, we provide reliable connection solutions for customers worldwide in consumer electronics, industrial automation, automotive electronics, medical equipment and other industries, earning wide recognition in the sector.
II. Product Features
4-Pin Vertical Through-Hole Structure for Strong Installation Stability
Adopting a 4-pin vertical through-hole design with uniform pin spacing and consistent length, the switch is firmly soldered after being inserted into the PCB, featuring excellent vibration and shock resistance, effectively avoiding loosening or detachment common in 1-pin or 2-pin designs. The vertical layout saves horizontal space on the board, greatly improving PCB layout flexibility and adapting to assembly needs of various compact devices.
Precise Key Travel with Clear Tactile Feedback
Key travel is precisely controlled within 0.3–0.5mm, with operating force stabilized at 160–350gf. The pressing process delivers clear tactile feedback without jamming or sluggishness, enabling accurate on-off control. The button features fast rebound and short response time, suitable for high-frequency pressing scenarios and avoiding operation delays.
Long-Life Contact Design for Stable and Reliable Performance
Internal contacts are made of high-purity silver alloy with superior conductivity, oxidation resistance and wear resistance, effectively reducing contact resistance and ensuring stable signal transmission. The service life reaches 1,000,000 to 5,000,000 presses, far exceeding industry standards, preventing poor contact or button failure even under long-term high-frequency use.
Wide-Temperature Weatherability for Broad Environmental Adaptability
The housing is made of high-temperature resistant flame-retardant PC engineering plastic with excellent mechanical strength and anti-aging performance, operating stably in a wide temperature range of -40℃ to 120℃ and resisting thermal cycling shocks. It also features excellent moisture and corrosion resistance, maintaining performance in environments with 10%–95% relative humidity and mild dust or oil contamination, adapting to harsh working conditions across multiple fields.
III. Product Advantages
Digital Manufacturing Control for Excellent Quality Consistency
Equipped with an MES digital production management system, it monitors key process parameters including stamping pressure, injection mold temperature and key travel in real time, with deviations controlled within ±0.05gf and ±0.01mm. A multi-camera visual inspection system accurately identifies 15 types of defects such as skewed pins, contact oxidation and housing deformation, keeping the defect rate below 0.08% and ensuring consistent mass production quality.
Standardized Compatible Design for Lower Adaptation Costs
Pin spacing and package dimensions meet universal industry standards and are compatible with library files of mainstream PCB design software including Altium and Cadence, requiring no extra design modifications. It directly supports various circuit control requirements and works seamlessly with relays, microcontrollers and other components, reducing selection and adaptation costs while accelerating project progress.
Flexible Production Response for Efficient Customization Services
A modular production system is implemented, with a customization response speed 45% higher than the industry average for special operating force, key travel and pin length. Regular specifications are in stock and deliverable within 72 hours. Customized products offer one-stop service from structural design and sample prototyping to mass production, with a minimum sample lead time of just 3 working days.
Full-Lifecycle Service Support for Worry-Free Cooperation
Backed by a professional technical team, we provide early selection guidance, mid-term soldering process optimization and post-failure troubleshooting, with an after-sales response time of no more than 24 hours. Products support forward raw material traceability and reverse defect tracing, fully complying with stringent regulatory requirements in automotive, medical and other industries.
IV. Product Applications
Mainly applied in electronic devices requiring manual precise on-off control across various fields:
Consumer Electronics: Power and volume buttons for smartphones and tablets, function keys for smart wearables (watches, bands), touchpad shortcut keys for laptops, control panel buttons for small home appliances;
Automotive Electronics: Function keys for automotive central control systems, dashboard adjustment buttons, switches for automotive air conditioning control panels, operation keys for car navigation;
Industrial Automation: Operation keys for PLC controllers, start-stop buttons for industrial control panels, function keys for handheld terminals, trigger buttons for warehouse scanning devices;
Medical Equipment: Parameter adjustment keys for portable ultrasonic diagnostic instruments, function switch buttons for monitors, start keys for medical testing equipment, operation keys for portable health monitoring devices;
DIY & Makers: Control buttons for open-source hardware, function trigger switches for small robots, operation keys for retro game consoles, manual control buttons for smart home devices.
V. FAQ
Q1: How to quickly select the suitable model for 4-pin vertical through-hole tact switch?
A1: Confirmation can be made through three core dimensions: ① Specify required operating force, key travel and pin length; ② Provide PCB mounting hole diameter, hole pitch and soldering process requirements; ③ Describe equipment operating environment (temperature, humidity, vibration frequency) and pressing frequency. Our technical team will provide accurate selection suggestions within 1 hour.
Q2: How to resolve button failure or poor contact during use?
A2: First, disconnect power and check for cold solder joints or detachment at the switch pins; re-solder for reinforcement if needed. If soldering is normal, gently wipe internal contacts with anhydrous alcohol and an ultra-fine cotton swab to remove dust or oil, then test after full drying. If the problem persists, the internal structure may be damaged due to excessive pressing; replacement with a high-quality equivalent product is recommended.
Q3: What key parameters are required for customizing 4-pin vertical through-hole tact switch?
A3: The following core information is needed: ① Basic specifications (key travel, operating force, pin length and spacing); ② Structural requirements (keycap shape, color, waterproof and dustproof design); ③ Performance requirements (operating temperature range, service life, vibration resistance grade); ④ Installation requirements (PCB hole diameter, hole pitch, soldering process type); ⑤ Order quantity and delivery schedule. A detailed customization plan and quotation will be provided accordingly.
