The SA170AHE3/54 is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay. This robust component is designed to safeguard sensitive electronic circuits from voltage transients caused by events such as lightning strikes, inductive load switching, and electrostatic discharge (ESD). Its axial leaded package makes it suitable for applications where through-hole mounting is preferred or required, providing excellent surge protection.

Applications

• Protection of AC and DC power lines
• Voltage surge protection in industrial equipment
• Protection of sensitive analog circuits
• Power supply overvoltage protection
• Telecommunications equipment protection

Features

• Unidirectional TVS diode
• Axial leaded package for through-hole mounting
• High surge capability: 500W peak pulse power capability with a 10/1000μs waveform
• Excellent clamping capability
• Low incremental surge resistance
• Fast response time: typically less than 1.0 ps from 0 Volts to BV minimum
• Low reverse leakage current
• Compliant to RoHS directive 2011/65/EU and in accordance to WEEE 2002/96/EC
• Halogen-free according to IEC 61249-2-21 definition

Benefits

• Increases the reliability of electronic systems by offering substantial protection against voltage transients.
• The axial leaded package is suitable for through-hole mounting, providing robust mechanical attachment.
• Minimizes the risk of damage to vulnerable components from ESD and voltage surges, decreasing downtime and maintenance costs.
• Meets stringent industry standards for environmental responsibility (RoHS, WEEE, Halogen-free).

Additional Details

The SA170AHE3/54 features a standoff voltage of 170V. Selecting a TVS diode with a standoff voltage slightly above the normal operating voltage of the protected circuit is crucial to prevent interference during normal operation. The clamping voltage represents the maximum voltage the TVS diode will allow to pass during a surge. The peak pulse current rating specifies the maximum surge current that the TVS diode can safely handle. This device operates within a temperature range of -65°C to +175°C. Its construction uses a glass passivated junction, providing enhanced reliability and performance. It features solderable terminals.