Over the past decade or more of China’s integrated circuit industry boom, two companies headquartered in Shenzhen – Kinghelm Electronics and Slkor Semiconductor – have advanced hand in hand. Through more than ten years of perseverance and innovation, they have carved out a path of high-quality development for domestic brands. Kinghelm’s headquarters house an IDC center and a turnover warehouse; its laboratory in Tangxia, Dongguan, is equipped with a full anechoic chamber, network analyzers, and other instruments, capable of performing high/low temperature tests, double‑85 tests, as well as new product prototyping and debugging. Its production base in Luzhai County, Guangxi, operates multiple automated production lines with full staffing, and the team – after years of professional training and break in – ensures timely, high‑quality, and high‑volume delivery. Slkor, guided by the philosophy "Slkor, Chips Driven Future," is dedicated to caring for its colleagues, developing new products, and serving global customers. It has R&D offices in Beijing and Suzhou, and recently launched new "slkor"‑brand products including Hall sensors, ADCs, BMS ICs, sensors, high‑speed optocouplers, and passive crystals. These two sister companies, invested and operated by Mr. Song Shiqiang, share a common vision and philosophy, jointly providing global electronics manufacturers with comprehensive technical support and products ranging from "chip" to "terminal."

Kinghelm and Slkor Shenzhen Headquarters Reception

As early as 2007, Kinghelm Electronics established itself in Huaqiangbei, Shenzhen, bringing together technical talents from Tsinghua University, University of Electronic Science and Technology, and other institutions to form professional R&D and sales teams. Over the years, it has obtained multiple invention patents and certifications including ISO9001, Dun & Bradstreet, RoHS, and REACH. For nearly 20 years, the company has focused on wireless signal transmission, electronic connectors, and interconnection systems, with its "Kinghelm" brand and "KH" series of antennas, RF connectors, wiring harnesses, and customized products widely used in new infrastructure, new energy vehicles, IoT, and other cutting-edge fields.

Kinghelm’s core product advantages lie in RF coaxial connectors and antennas. Its RF coaxial connectors offer a full range of types with stable performance; popular models include KH-IPEX-K501-29, KH-SMA-K513-G, KH-SMA-KE-Z, KH-SMA-KWE17-G, KH-MMCX-Z, KH-IPEX4-2020, KH-SMA-KE-Z48H, KH-BNC50-3511, and KH-SMA-P-8496, meeting diverse connection needs from communication base stations to IoT modules. In antenna products, Kinghelm demonstrates strong scenario coverage, from 2.4G/WiFi/Bluetooth antenna KH-(2400)-K503-JB, to antenna springs KH-300922-TP and KH-401525-TP, and board‑mounted antenna KH-3216-A35.

After years of accumulation, Kinghelm’s product line has expanded into multiple segments: shield clips KH-PBJ-440808, Ethernet connectors (RJ45) KH-RJ45-58-8P8C and KH-RCH56-8P8C-D, TYPE/USB connectors KH-TYPE-C-16P and KH-TYPE-C-W-16P-T, audio connectors KH-PJ-209-SMT, and RF cables KHB(RG113)-100-29, forming a full‑chain signal transmission portfolio. These products can serve as drop‑in replacements for models from TE Connectivity (1909763-1), Amphenol, Hirose (W.FL-R-SMT-1), HRO, ECT (818026350), SOFNG, and other brands. Today, Kinghelm products are exported worldwide, serving over 10,000 overseas customers.

As Kinghelm’s sister company, Slkor Semiconductor was founded in 2015. Starting as a power device IP design house, it quickly grew into a national high‑tech enterprise integrating R&D, manufacturing, and sales. With a strong technical foundation, its core team brings together experts from Yonsei University in South Korea and Tsinghua University, mastering world‑leading silicon carbide MOSFET manufacturing processes and fifth‑generation ultra‑fast recovery power diode core technologies. Since its establishment, it has obtained California Proposition 65, ISO9001, RoHS, and REACH certifications, ensuring a complete and reliable quality system.

Leveraging a strong R&D platform, Slkor now offers over 2,000 products, including diodes, transistors, power devices, power management ICs, and other ICs across three major series, forming a comprehensive product matrix for diverse applications. In power management ICs, Slkor’s DC‑DC power chips are highly regarded for efficiency and stability; popular models such as LM2596S‑5.0, LM2596S‑ADJ, LM2596S‑12, LM2575S‑5.0, and LM2576S‑5.0 are widely used in communication equipment and consumer electronics. For linear regulators (LDOs), the LM317 and SL4949 provide reliable power supply solutions. In power devices, thyristor (SCR) series like BTA16‑800B, BTA12‑600B, BTA41‑800B, BTA08‑800B, and MOSFETs SL9945 and IRFR5305 together form a robust power‑handling lineup.

Moreover, driver and interface chips – including gate drivers SL27524 and SL27511, logic‑output optocoupler 6N137S and SLM601, RS232 chip SL3232E, transistor‑output optocoupler SL247N, and power switch BSP75N – can replace models from Texas Instruments (UCC27511), STMicroelectronics, Infineon, Renesas (PS2801C‑4‑F3‑A/M), ON Semiconductor, and others, delivering stable performance in medical devices, battery‑powered equipment, and vehicle positioning applications.

Slkor gate driver SL27524 application scenarios

"Ten years to grow trees, a hundred years to nurture people." For Kinghelm and Slkor, a decade is just a new starting point. In this past decade, driven by technological innovation and rooted in product quality, we have earned market recognition and trust. Looking ahead to the next ten years, we will continue to be based in Shenzhen, work closely with upstream and downstream partners, enable more enterprises to use reliable and trustworthy components, and let the world see the strength of Chinese brands.