Toshiba CMZB series Zener Diodes Surge Protection Of Power Lines - CMZB18A

 

Protect your sensitive electronic equipment from voltage surges with the Toshiba CMZB18A Zener Diode. Designed for superior surge protection in power line applications, this diode offers a reliable and cost-effective solution to safeguard your investments against transient voltage events. Its robust construction and precise voltage regulation make it an ideal choice for a wide range of industrial, commercial, and consumer electronics applications.

Benefits 

• Prevents Costly Damage: By effectively clamping voltage surges, the CMZB18A prevents damage to sensitive components, reducing repair and replacement costs.
• Enhances System Reliability: Ensures stable and reliable operation of electronic systems by mitigating the effects of voltage transients.
• Extends Equipment Lifespan: Protects equipment from premature failure caused by voltage stress, extending its overall lifespan.
• Reduces Downtime: Minimizes system downtime due to voltage-related failures, improving productivity and operational efficiency.
• Provides Peace of Mind: Offers confidence in the protection of valuable electronic assets against unforeseen voltage surges.

Key Features

Surge Protection From Switching Surges and Overvoltage Pulses with Long Pulse Width And Characteristics Close to DC.

The new products feature protection not only against transient overvoltage pulses, but also against overvoltage pulses with long pulse width and characteristics close to DC, which are difficult for ESD protection diodes to handle. In power lines of equipment, switching surges with long pulse widths of up to milliseconds may be generated when the circuit switches. The new products help protect semiconductor devices from switching surges and overvoltage close to DC.

Zener Voltage For Major Power Lines: V_Z (typ.)=12V to 51V

With a wide lineup of Zener voltages ranging from 12V to 51V, the lineup supports a variety of applications, including consumer and industrial equipment.

Specification Range of High-Precision Zener Voltage: ±5% (typ.)

With a planar structure enabling fine-tuning of the process, the new products improve the Zener voltage specification range of Zener voltage (typ.) from ±10% to ±5% compared to the existing CMZBxx series. This allows for design within a narrower voltage range, making it easier to select components and adjust circuit constants, thereby contributing to simplified equipment design.

Low Reverse Current: I_R (max)=0.5μA

Since Zener diodes are typically connected to power lines continuously, lower reverse current helps lower power consumption during standby. By protecting the PN junction with an oxide film through a planar structure, the CMZBxxA series achieves a low reverse current of 0.5μA (max), compared to 10μA for the existing CMZBxx series. This contributes to low power consumption in equipment.

DATA SHEET