Future-Ready Circuit Safety Starts Here: SLES2411P4 and the New Standard of ESD Protection

 In smart manufacturing workshops in Shenzhen, robotic arms powered by 24V systems weld circuit boards with astonishing 0.01 mm precision; in electric vehicle laboratories in Shanghai, 48V electronic architectures are driving the evolution of next-generation powertrains; in medical equipment showrooms in Beijing, high-precision monitors process vital-sign data at microsecond speeds… Behind all these cutting-edge applications lies an uncompromising demand for efficiency and reliability in medium- to high-voltage electronic systems. Yet an invisible threat is always present — electrostatic discharge (ESD) and transient overvoltage. Like sudden “electronic lightning,” they can instantly puncture components and bring entire systems to a halt. The SLES2411P4 ESD protection diode launched by Slkor is a true “safety revolution” engineered specifically for medium-high voltage applications, redefining ESD protection standards through precise defense, exceptional reliability, and a highly integrated design.

• Precise Protection: The “Smart Firewall” for Medium-High Voltage Scenarios
   Traditional ESD protection diodes are largely optimized for low-voltage applications (such as 5V or 12V), leaving a long-standing protection gap in medium-high voltage systems like 24V industrial controls and 48V automotive electronics. The SLES2411P4 is engineered specifically to close this gap.
   24V Reverse Working Voltage (VRWM): Under normal operating conditions, the diode remains in a high-impedance state with near-zero current consumption, ensuring absolute transparency to system operation and zero impact on signal integrity.
   24.8V Breakdown Voltage (VBR min): Once the voltage exceeds this threshold, the device responds within nanoseconds, rapidly steering destructive electrostatic energy safely to ground.
   32V Clamping Voltage (VC): After conduction is triggered, the voltage is swiftly limited to below 32V, effectively shielding downstream components from transient overvoltage damage and ensuring system continuity.
• Stable and Reliable: “Superior Performance” in Extreme Environments
   Ultra-Low Leakage Current (1 μA): At a 24V reverse bias, leakage current is just one-fifth of the industry average. This dramatically reduces standby power consumption, making it especially valuable for battery-powered medical devices and always-on industrial sensors. In applications such as cardiac monitors, this low-leakage design directly translates into longer battery life and uninterrupted, life-critical monitoring.
   High-Reliability DFN2020–3L Package: With a footprint 40% smaller than conventional SOT-23 packages, the device achieves compactness without compromising robustness. An optimized pin layout and enhanced thermal design significantly improve resistance to mechanical stress. In automotive vibration testing, the SLES2411P4 withstands impact accelerations up to 100G with no cracking or lead detachment, guaranteeing dependable operation even under severe road conditions.
   Wide Operating Temperature Range (-55 °C to 150 °C): Enabled by specialized materials and advanced process technologies, the SLES2411P4 delivers consistent protection across extreme environments — from -40 °C industrial facilities in the north to 125 °C automotive engine compartments in the south. Performance remains stable, eliminating temperature-induced drift and ensuring continuous ESD defense.

Cross-Industry Empowerment: The “Protection Standard” for Four Key Industries
 The true strength of the SLES2411P4 lies in its deep insight into medium-high voltage applications and its purpose-built design. This makes it a trusted protection solution across four critical industries:
 ● Industrial Automation: In PLC control systems, servo drives, and robotic joints, the SLES2411P4 shields core circuits from electrostatic discharge and surge events, dramatically lowering failure rates and boosting production line uptime. After deployment at an automotive parts manufacturer, static-related downtime was reduced by 90%, delivering immediate operational gains.
 ● Communication Equipment: Power supplies, data converters, and switches in base stations are frequently exposed to transient overvoltages caused by lightning strikes or line switching. With its ultra-fast response and precise clamping characteristics, the SLES2411P4 efficiently absorbs surge energy and prevents cascading failures. Field tests by a telecom operator showed a 75% reduction in equipment failure rates after adoption.
 ● Automotive Electronics: Engine control units and in-vehicle power management systems face complex electrical disturbances, including load dumps and ignition noise. Certified to AEC-Q101 automotive standards, the SLES2411P4 ensures long-term stability under harsh automotive conditions. One new energy vehicle manufacturer reported a 60% reduction in after-sales maintenance costs after integrating this device into its ECU designs.

Conclusion: Guarding Medium-High Voltage Electronic Systems, Starting from the “Tiny”
 Throughout the evolution of technology, many transformative breakthroughs have emerged from an obsessive focus on the smallest details. The SLES2411P4 electrostatic protection diode is a prime example. It may appear unassuming, yet it safeguards industrial systems worth billions with nanosecond-level precision. It doesn’t add visible features, but it enables countless innovations to operate safely and reliably. From factory robotic arms to hospital monitoring equipment, from automotive engine bays to telecom base stations, the SLES2411P4 demonstrates that real technological power often resides in the details we don’t see. Choosing the SLES2411P4 means adding “invisible insurance” to medium-high voltage electronic systems — so innovation can advance with confidence and security.

About Slkor：

SLKOR, headquartered in Shenzhen, China, is a rapidly emerging national high-tech enterprise in the power semiconductor sector. With R&D centers in Beijing and Suzhou, its core technical team originates from Tsinghua University. As an innovator in silicon carbide (SiC) power device technology, SLKOR’s products are widely used in new energy vehicles, photovoltaic power generation, industrial IoT, and consumer electronics, providing critical semiconductor solutions to over 10,000 clients globally. The company delivers more than 2 billion units annually, with its SiC MOSFETs and 5th-generation ultrafast recovery SBD diodes setting industry benchmarks in efficiency ratio and thermal stability. SLKOR holds over 100 invention patents and offers 2,000+ product models, continually expanding its IP portfolio across power devices, sensors, and power management ICs. Certifications including ISO 9001, EU RoHS/REACH, and CP65 compliance demonstrate the company’s steadfast commitment to technological innovation, lean manufacturing, and sustainable development.