【SLKOR Semiconductor】GBLC24C: Precision-Engineered 24V High-Voltage ESD Protection for Modern Electronics

 In the fields of industrial automation, automotive electronics, and high-end consumer devices, protecting 24V systems against ESD has long been a critical challenge for design engineers. The GBLC24C ESD protection diode from Slkor — an essential member of the GBLC0xC series — delivers a purpose-built solution for mid- to high-voltage circuits, offering professional-grade defense for 24V applications. By elevating the working voltage to 24V while preserving the ultra-low-capacitance performance the series is known for, the GBLC24C effectively bridges a major market gap for engineers seeking high-voltage, low-capacitance ESD protection components.

The GBLC24C carries forward the exceptional performance DNA of the GBLC series, built on advanced semiconductor manufacturing processes. Its core protection capabilities fully align with three major international standards: ±15kV (air) / ±8kV (contact) ESD immunity per IEC61000–4–2; 40A (5/50ns) EFT protection per IEC61000–4–4; and 12A (8/20μs) surge protection as defined by IEC61000–4–5. Together, these three layers of defense create a robust, all-around protection system — ensuring device stability even in harsh, noise-heavy electromagnetic environments.

From a technical perspective, the GBLC24C showcases professional-grade engineering: a 24.0V reverse working voltage (VRWM) tailored for industrial-standard power systems; a minimum breakdown voltage (VBR) of 26.7V providing a solid protection margin; and a clamping voltage (VC) of 56V that shields downstream circuits during transient events. With an ultra-low leakage current (IR) of just 1.0μA and an exceptionally low junction capacitance (CJ) of 0.8pF, it minimizes power consumption while keeping high-speed signals clean and stable. Its <1ns response time is a standout feature — among the fastest in its class — instantly suppressing sudden transients before they can cause harm.

The device comes in a compact SOD-323 package, delivering strong protection performance within a 3.8mm × 1.35mm footprint. The housing meets UL94V-0 flammability standards and withstands 260°C soldering for 10 seconds, ensuring seamless compatibility with automated assembly lines. A standard 7-inch reel containing 3000 units supports efficient high-volume production and streamlined inventory control. This space-saving design allows the GBLC24C to integrate easily into dense industrial PCBs, giving engineers more freedom and flexibility in layout planning.

The GBLC24C is particularly suitable for the following application areas:

1. Industrial control systems: Provides robust 24V line protection for PLCs, industrial communication buses, and sensor interfaces.
2. Automotive electronics: Ensures stable power protection for in-vehicle entertainment systems and various control modules.
3. High-end consumer electronics: Safeguards high-power audio equipment, advanced display devices, and other premium electronics.
4. Computing devices: Offers reliable interface protection for industrial-grade servers, workstations, and peripheral systems.
5. Medical equipment: Delivers high-reliability circuit protection essential for precision medical instruments.

Compared to similar products on the market, the GBLC24C stands out with three major advantages:
 First, its wide voltage adaptability — the 24V working voltage covers the majority of mainstream industrial system requirements.
 Second, its balanced performance, combining strong transient protection with ultra-low capacitance to preserve signal clarity.
 Third, its exceptional reliability, backed by rigorous testing to ensure long-term stability even in demanding environments.

These strengths make the GBLC24C the preferred ESD protection solution for engineers working in 24V and other high-voltage application scenarios.

Real-world application cases demonstrate that after integrating the GBLC24C into the 24V sensor interfaces of industrial automation equipment, the ESD-related failure rate dropped by over 90%. A renowned automotive electronics manufacturer also adopted the device in its in-vehicle systems and successfully passed the rigorous ISO 10605 automotive ESD standard. These results provide strong evidence of the GBLC24C’s outstanding real-world protection performance.

As Industry 4.0 and IoT technologies continue to advance, the demand for robust protection in 24V systems will only grow. Slkor is committed to further enhancing the GBLC series, offering engineers even more comprehensive and high-performance circuit protection solutions. The launch of the GBLC24C not only broadens the range of available high-voltage ESD protection components but also underscores Slkor’s innovation and engineering strength in the circuit protection field. Looking ahead, Slkor will continue developing next-generation protection technologies to help electronic systems withstand the increasingly complex challenges of modern electromagnetic environments.