Amid the continuous pursuit of thinness and lightness in smart devices, the Kinghelm KH-12X12X5H-SMT-D tactile switch launched by Shenzhen Kinghelm Electronics Co., Ltd. is becoming the focus of the industry. This micro switch, which adopts surface mount technology (SMT), offers a breakthrough space solution for high-end consumer electronics, automotive control systems and medical devices with its compact size of 12×12×5mm and ultra-light weight of only 0.7803 grams.

Kinghelm KH-12X12X5H-SMT-D Product Image

The exquisite design of Kinghelm KH-12X12X5H-SMT-D embodies Kinghelm's years of technological accumulation. Its interior adopts silver-plated copper alloy contacts, with the contact resistance stably controlled within 50mΩ and the insulation impedance reaching 100MΩ@100VDC (in compliance with GB/T14048 standard), ensuring the reliability of signal transmission. A scientific trigger force of 160±50gf, combined with a precise stroke of 0.3±0.1mm, achieves clear haptic feedback within a limited space. The product undergoes strict dimensional control, with length and width tolerances within ±0.2mm and height tolerances within ±0.3mm, meeting the requirements of high-precision mounting.

In terms of reliability, this switch has passed multiple rigorous tests: 50,000 mechanical life tests (in accordance with the IEC61058 standard) to simulate long-term usage scenarios; Temperature cycling verification from -25℃ to 85℃ to adapt to harsh environments; The anti-corrosion performance was verified through a 168-hour high-temperature and high-humidity test at 85℃/85%RH. The specially designed sealing structure can effectively prevent dust and liquid splashing, meeting the stable operation requirements in the automotive electronic vibration environment (5-500Hz/2G acceleration).

In terms of production process, the Kinghelm KH-12X12X5H-SMT-D is compatible with fully automatic SMT production lines, supports 260℃ peak reflow soldering (conforming to the J-STD-020 standard), and has a placement accuracy of ±0.1mm. The bagged packaging design significantly enhances the feeding efficiency of the surface mount technology (SMT) machine and helps customers reduce production costs. The environmental protection performance complies with the requirements of the RoHS Directive, and the lead-free process meets the export standards to the European Union.

Kinghelm KH-12X12X5H-SMT-D Specification

Its outstanding performance has been verified by actual application scenarios. In foldable phones, the 5mm ultra-thin height saves valuable space in the hinge area. After new energy vehicles adopt this switch, the thickness of the center console is reduced by 18%. Medical equipment manufacturers integrate it into hearing AIDS, and the lightweight design enhances wearing comfort. Industrial control equipment benefits from its dust-proof characteristics and maintains stable operation in dusty environments.

To ensure the best usage effect, Kinghelm offers professional guidance: It is recommended to use the reflow soldering process with a peak temperature not exceeding 260℃. The workload should be controlled within 12VDC/50mA. Avoid applying mechanical stress exceeding 2N laterally during installation. The storage environment is recommended to be maintained at -10℃ to 40℃, with a humidity of 30% to 60%RH.

Kinghelm Electronics has established a complete quality assurance system. Each batch of products undergoes contact impedance testing, insulation strength verification (AC500V/1min), and full appearance inspection. The company is equipped with a professional laboratory and can provide 48-hour sample service, supporting customized applications in special environments (such as enhanced sealing solutions).

As electronic devices continue to evolve towards miniaturization, the Kinghelm KH-12X12X5H-SMT-D tactile switch, with an ultimate height of 5 millimeters, offers engineers a solution that combines space efficiency and reliability. Kinghelm will continue to focus on the microelectronics field, empower the development of smart hardware with innovative technologies, and work with partners to upgrade the human-computer interaction experience.

About Kinghelm

Shenzhen Kinghelm Electronics Co., Ltd.（www.kinghelm.net）has technical backbones from Tsinghua University and UESTC, and has introduced overseas returnee professionals. Kinghelm is able to develop highly reliable and high-performance antenna and connector products.KH series products of "Kinghelm" brand include Beidou/GPS antennas, RF adapter connectors, plug connector, electrical data connectors, terminals, and customized vehicle harnesses, industrial / medical connectors, and special antenna connectors."Kinghelm connects world", Kinghelm has grown with the development of China's Beidou industry. Starting from supplying Beidou/GPS dual mode antennas, IPEX terminals, and RF adapter cables for automotive manufacturers, Kinghelm has continuously developed products. Currently, it has a series of WiFi, Bluetooth, NB-loT, LoRa, Zigbee, UWB, and GSM antennas, RFID tags, RF adapter cables, standard microwave antennas, vehicle grade SMA, SMB, FAKRA holders, coaxial cables, and can customize non-standard antenna connectors based on customer drawings or samples.