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 FFC/FPC flat cables, matching sockets, tact switches and other precision electronic components. We have established a full-chain independent operation system covering product design, mold development and large-scale 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 5 million pieces, enabling efficient response to bulk orders and personalized customization needs.
The company strictly implements 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 sophisticated manufacturing technology, 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 trust and recognition.
II. Product Features
Ultra-Miniature Side-Press Structure for Space Saving
Adopting an ultra-compact 2mm×4mm×3.5mm package with an innovative side-press design, it does not occupy the front core area of the PCB and can be directly inserted at the board edge or narrow gaps. It perfectly meets the high-density integration requirements of ultra-small devices such as smart wearables, micro sensors and ultra-thin digital products, improving space utilization by more than 50% compared with conventional direct-press switches.
DIP Through-Hole Pins for Firm & Convenient Installation
Pins are made of high-purity nickel-plated brass with uniform pitch and consistent length, allowing direct insertion into preset PCB vias and compatibility with wave soldering, manual soldering and other processes. The tight combination after soldering delivers excellent vibration and shock resistance, effectively preventing loosening or poor contact. The structure also facilitates later maintenance and replacement, reducing after-sales repair costs.
High-Temperature Resistant Materials for Harsh Working Conditions
The switch housing is made of high-temperature resistant flame-retardant modified LCP engineering plastic, capable of withstanding 260℃ high-temperature soldering without deformation, softening or cracking. It operates stably in a wide temperature range of -40℃ to 125℃, resisting thermal cycling shocks, meeting high-reliability standards for automotive electronics and industrial control, and maintaining stable performance in mild dust, oil and humid environments.
Precise Tactile Feedback & Long-Life Stable Operation
Key travel is precisely controlled at 0.2–0.4mm, with operating force in the low range of 120–200gf. The pressing process provides clear tactile feedback, fast rebound and no sluggishness, with a trigger response time as short as 5ms to avoid false triggering. Internal silver-palladium alloy contacts feature excellent conductivity, oxidation resistance and wear resistance, with contact resistance ≤50mΩ. The service life reaches 1,000,000 to 3,000,000 presses, far exceeding industry standards.
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 Compatible Design for Lower Adaptation Costs
Package dimensions and pin pitch comply with industry common standards, compatible with Altium, Cadence, KiCad and other mainstream PCB design software, requiring no additional board modification. The DIP through-hole structure directly supports various circuit control requirements and can work with microcontrollers, relays and other components, reducing customer selection and adaptation costs and accelerating project progress.
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-Lifecycle Service Support for Worry-Free Cooperation
Backed 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, with full-process production data accessible in real time, fully complying with strict automotive, medical and industrial automation compliance requirements.
IV. Product Applications
Mainly used in ultra-small electronic devices with high requirements for size, stability and high-temperature resistance:
Smart Wearables: Side function trigger buttons for smart watches and bands, power and volume keys for Bluetooth headsets, mode switch buttons for smart glasses, touch buttons for health monitoring bands
Consumer Electronics: Power check buttons for ultra-thin power banks, pairing keys for TWS earphone 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 switch keys for car ambient lights, function buttons for car keys
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
Medical Equipment: Operation keys for portable ECG monitors, trigger switches for blood glucose meters, parameter adjustment keys for micro ultrasound probes, function keys for wearable oximeters
V. FAQ
Q1: How to quickly select the suitable model for 2×4×3.5 side-press DIP high-temperature tact switch?
A1: Confirm via three core dimensions: ① Required operating force, key travel and pin length; ② PCB mounting hole diameter, pitch and soldering process requirements; 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 at the pin soldering position; 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 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 hole diameter, pitch, soldering process type); ⑤ Order quantity and delivery schedule. We will issue a detailed customization plan and quotation accordingly.
