1.5SMC30AT3 – ONSEMI

Overview

The ONSEMI 1.5SMC30AT3 is a unidirectional 1500W peak power Zener Transient Voltage Suppressor (TVS) designed for robust protection of sensitive electronics against high-energy voltage transients. Its critical operational characteristic lies in its rapid response time and superior clamping capability, effectively limiting peak pulse voltage to protect downstream circuitry. A key design consideration when implementing these devices is the trade-off between clamping voltage and surge capability; while higher surge currents can be handled, the resultant clamping voltage will increase, necessitating careful selection based on the maximum allowable voltage for the protected component.

Key Features

• 1500 W Peak Pulse Power Dissipation @ 1.0 ms
• Working Peak Reverse Voltage: 26.1 V
• Standard Zener Breakdown Voltage: 30 V
• ESD Rating: Class 3 (>16 kV) per Human Body Model
• Maximum Clamp Voltage @ Peak Pulse Current: 41.9 V
• Low Leakage Current:< 5.0 µA above 10 V
• SMC Package (9.0 x 7.4 x 2.5 mm)

Applications

The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.

• Protection of DC power input stages in industrial control systems
• Suppression of voltage spikes in automotive sensor interfaces
• Safeguarding communication line transceivers from ESD events
• Transient voltage mitigation in AC/DC power supply output filtering