The POZ3AN-1-223N is a zinc oxide varistor manufactured by Murata Electronics North America. It is engineered to safeguard electronic circuits against voltage surges and transient events, offering robust overvoltage protection in a compact package. As part of the POZ series, it is well-regarded for its reliable performance and ability to handle substantial surge currents.

Applications

• Power supplies (AC/DC and DC/DC)
• LED lighting systems
• Industrial automation equipment
• Consumer electronics (TVs, appliances, etc.)
• Telecommunications equipment

Features

• Zinc oxide (ZnO) based material
• High surge current withstanding capability
• Fast response to transient overvoltage
• Compact design
• Excellent voltage clamping characteristics
• RoHS compliant

Benefits

• Effective protection of sensitive electronic components from voltage surge damage.
• Increased reliability and longevity of electronic devices.
• Cost-effective surge protection solution.
• Easy integration into various circuit designs due to its small size.
• Meets industry safety and environmental standards.

Additional Details

The POZ3AN-1-223N varistor's performance is defined by its voltage rating and surge current handling capacity. The '223N' portion of the part number likely corresponds to a voltage rating around 22V, but it is essential to verify this with the manufacturer's datasheet. These varistors clamp voltage spikes to a safe level, protecting components downstream from potential damage. They are commonly employed in circuits exposed to voltage surges from lightning, inductive load switching, or electrostatic discharge (ESD). Selection considerations should include the maximum continuous operating voltage, peak surge current, and energy absorption requirements of the application. The Murata POZ series is known for delivering consistently high-quality varistors.

Varistors are non-linear resistors that exhibit a high resistance at normal operating voltages but a low resistance when a transient voltage exceeds a specific threshold. This allows them to shunt excess current away from sensitive components, thereby preventing damage and ensuring circuit integrity.