In the semiconductor industry, ensuring the stable operation of circuits is the cornerstone of product performance and reliability. The SMCJ18CA transient voltage suppression (TVS) diode, with its outstanding electrical performance, has become the top choice for circuit protection.

Bidirectional Polarity for Flexibility in Complex Conditions

The bidirectional polarity design of the SMCJ18CA is key to its flexibility in complex circuit environments. In semiconductor circuits, transient voltage surges are unpredictable, and both positive and negative overvoltages can threaten circuit safety. The SMCJ18CA, with its bidirectional characteristics, quickly responds and activates protection mechanisms regardless of the polarity of the voltage surge. This flexibility makes it effective in various complex circuits, such as control circuits in industrial automation equipment and signal transmission lines in automotive electronic systems, ensuring that the circuit is always under protection.

Slkor Transient Protection Diode SMCJ18CA product photo

Precise Voltage Parameters for Stability and Safety

Reverse Stand-Off Voltage (Vrwm): Stability Assurance

The 18V reverse stand-off voltage is a crucial threshold set by the SMCJ18CA for stable circuit operation. When the circuit voltage remains within the normal range, i.e., below 18V, the diode stays in a high-resistance state, with minimal impact on the circuit's normal operation, ensuring efficient and stable performance without additional losses or interference.

Slkor Transient Protection Diode SMCJ18CA specification

Breakdown Voltage: Precise Protection Trigger

With a breakdown voltage range of 20V 22.1V, this precise setting is significant. On the one hand, it provides a reasonable buffer for normal voltage fluctuations, preventing false triggering of the protection mechanism due to small voltage changes, and ensuring stable circuit operation. On the other hand, if a transient overvoltage exceeds this range, the diode rapidly enters breakdown mode, limiting the high voltage to a safe level and protecting sensitive downstream electronic components from overvoltage damage.

Parameters of Slkor Transient Protection Diode SMCJ18CA

Low Reverse Leakage Current for Efficient Energy Use

With a reverse leakage current of only 1μA, the SMCJ18CA demonstrates exceptional energy efficiency. In semiconductor applications that are sensitive to power consumption, such as portable electronics and low-power IoT sensors, even a small amount of energy loss can impact device battery life and overall performance. The ultra-low reverse leakage current of the SMCJ18CA means it consumes almost no additional energy during normal operation, significantly improving energy efficiency and extending battery life while ensuring circuit protection.

Strong Pulse Handling Capability to Withstand Transient Surges

Peak Pulse Current (Ipp) and Maximum Clamping Voltage: A Solid Barrier for Instant Protection

Under the 10/1000μs standard test waveform, the SMCJ18CA can withstand a peak pulse current of up to 51.4A, while keeping the maximum clamping voltage at 29.2V. In the face of high-intensity transient voltage surges from lightning strikes, switching operations, and other sources, it responds quickly, using its strong current-handling capability to dissipate excessive energy and precisely clamp the voltage, protecting downstream electronic components from high-voltage damage.

Peak Pulse Power (Ppp): A Reliable Shield for Continuous Protection

With a peak pulse power of 1500W, the SMCJ18CA showcases its robust energy absorption capacity. In environments frequently subjected to transient overvoltage shocks, it acts as a solid "energy shield," continuously converting and dissipating excess energy, ensuring it does not fail due to overheating and always provides reliable protection for the circuit.

As the semiconductor industry evolves rapidly, the demand for high-performance circuit protection components continues to grow. The SMCJ18CA, with its bidirectional protection, precise voltage control, low power consumption, and strong pulse-handling capacity, is the ideal choice for semiconductor circuit protection. Choose the SMCJ18CA to infuse your semiconductor products with reliable quality assurance, helping them stand out in a competitive market. Partner with the SMCJ18CA to drive the semiconductor industry to new heights.

About Slkor：

Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories.