I. Company Introduction
We are a high-tech enterprise deeply engaged in the field of precision electronic connectors, focusing on R&D, production and sales of FFC/FPC flat cables, matching sockets, tact switches and other precision electronic components. We have built a full-chain independent operation system covering product design, mold development and large-scale production. The company is equipped with 8 intelligent production lines integrating precision stamping, high-speed injection molding, automatic SMT and multi-dimensional testing equipment, realizing fully automatic control of core processes. The monthly capacity of tact switches exceeds 5 million pieces, supporting efficient delivery of batch orders and personalized customization.
The company strictly follows the ISO9001 quality management system and IATF 16949 automotive industry standards. All products have passed RoHS, REACH, halogen-free and other international environmental certifications, with complete quality traceability files established for each batch. With precise manufacturing technology, stable performance and full-cycle technical services, we provide reliable connection solutions for global customers in consumer electronics, industrial automation, automotive electronics, medical equipment and other fields, winning wide trust and recognition.
II. Product Features
Ultra-Miniature & Ultra-Slim Design for Maximum Space Saving
Adopting an ultra-compact 3mm×3mm×1.5mm package, over 70% smaller than conventional tact switches. The compact SMT pin layout allows mounting in high-density PCB areas, perfectly fitting smart wearables, micro sensors, ultra-thin digital products and other miniaturized devices, greatly improving board space utilization and supporting lightweight equipment design.
High-Temperature SMT Structure for Strict Welding Standards
The switch housing is made of high-temperature resistant flame-retardant modified LCP engineering plastic, and pins are made of high-purity tin-plated brass, capable of withstanding 260℃ reflow soldering without deformation, softening or pin detachment. High structural stability and no residual stress after soldering meet high-reliability requirements for automotive electronics and industrial control, adapting to large-scale automated production lines.
Precise Press Feedback & Silent Operation Experience
Key travel is precisely controlled at 0.15–0.3mm, with operating force in the low range of 100–200gf. The pressing process delivers clear tactile feedback, fast rebound and no sluggishness, with a trigger response time as short as 5ms to avoid false triggering. The silent contact design ensures no harsh noise during pressing, suitable for medical devices, portable audio and other quiet-demanding scenarios.
High Stability & Wide Environmental Adaptability
Internal contacts are made of silver-palladium alloy with excellent conductivity, oxidation and wear resistance, with contact resistance ≤50mΩ for stable and interference-free signal transmission. The service life reaches 1,000,000 to 3,000,000 presses, far exceeding industry standards. It operates stably in a wide temperature range of -40℃ to 125℃, with excellent moisture and corrosion resistance, maintaining performance in 10%–95% relative humidity and mild dust/oil environments.
III. Product Advantages
Digital Manufacturing Control for Excellent Quality Consistency
Equipped with an MES digital production management system that monitors stamping pressure, mold temperature, key travel and other key parameters in real time, with deviations controlled within ±0.05gf and ±0.01mm. A high-precision visual inspection system accurately identifies 12 types of defects including skewed pins, contact oxidation and housing deformation, with a defect rate below 0.1%, ensuring stable and consistent mass production quality.
Standardized Compatibility for Lower Matching Costs
Package dimensions and pad definitions comply with industry common standards, compatible with Altium, Cadence, KiCad and other mainstream PCB design software, requiring no additional board modification. The SMT structure allows synchronous soldering with micro components such as resistors and capacitors, reducing production line changeovers and improving assembly efficiency while lowering labor and material costs.
Flexible Production Response for Efficient Customization
A modular production system supports customized requirements for special operating force, key travel and pin length with a response speed 45% faster than the industry average. Standard models are in stock and deliverable within 72 hours. Relying on in-house mold development capabilities, customized products offer one-stop service from structural design and prototyping to mass production, with a minimum sample lead time of only 3 working days.
Full-Cycle Service Guarantee for Worry-Free Cooperation
Supported by a professional technical team providing selection guidance, soldering process optimization and troubleshooting, with an after-sales response time within 24 hours. Products support forward material traceability and reverse defect tracing, fully meeting strict compliance requirements in automotive, medical and industrial automation industries.
IV. Product Applications
Mainly used in miniature electronic devices with high requirements for size, stability and high-temperature resistance:
Smart Wearables: Function buttons for smart watches and bands, power/volume keys for Bluetooth earphones, mode switches for smart glasses, touch buttons for health monitoring bands
Consumer Electronics: Power check buttons for ultra-thin power banks, pairing keys for TWS charging cases, function control buttons for mini projectors, operation keys for card-type voice recorders
Automotive Electronics: Control buttons for in-car micro cameras, wake-up keys for tire pressure sensors, mode switches for ambient lighting, function buttons for car keys
Medical Equipment: Operation keys for portable ECG monitors, trigger switches for blood glucose meters, adjustment buttons for micro ultrasound probes, function keys for wearable oximeters
Industrial Automation: Trigger switches for micro sensors, keys for wireless temperature and humidity collectors, function buttons for small PLC controllers, operation keys for portable testing instruments
V. FAQ
Q1: How to quickly select the suitable model for 3×3×1.5H SMT high-temperature resistant tact switch?
A1: Confirm via three core dimensions: ① Required operating force and key travel; ② PCB pad size and reflow soldering temperature profile parameters; ③ Operating environment (temperature, humidity, vibration frequency) and pressing frequency. Our technical team will provide accurate selection suggestions within 1 hour.
Q2: How to solve button failure or slow rebound during use?
A2: First disconnect power and check for cold solder joints or detachment on pads; 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 continues, the internal dome may be damaged by external compression; replace with a high-quality equivalent high-temperature resistant tact switch.
Q3: What key parameters are required for customization?
A3: Please provide: ① Basic specifications (key travel, operating force, pin length); ② Structural requirements (keycap color & shape, waterproof/dustproof requirement, positioning posts); ③ Performance requirements (temperature resistance grade, service life, vibration resistance grade); ④ Installation requirements (PCB pad size, maximum reflow soldering temperature); ⑤ Order quantity and delivery schedule. We will issue a detailed customization plan and quotation accordingly.
