The SMA5J22AHE3/5A is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay. This device is designed to protect sensitive electronic components from voltage transients induced by lightning, inductive load switching, and electrostatic discharge (ESD). It is packaged in an SMA (Surface Mount Assembly) package, making it suitable for high-density circuit board applications.

Applications

• Protection of I/O Interfaces
• Voltage Surge Protection in Consumer Electronics
• Industrial Control Systems
• Power Supplies
• Telecommunication Equipment

Features

• Bidirectional TVS diode
• SMA package for surface mount assembly
• Low profile package
• 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
• Typical IR less than 1 μA above 10 V
• 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

• Provides robust protection against transient voltage events, enhancing the reliability of electronic systems.
• The SMA package allows for efficient surface mount assembly, saving board space.
• Reduces the risk of damage to sensitive components from ESD and voltage surges, minimizing downtime and repair costs.
• Meets industry standards for environmental compliance (RoHS, WEEE, Halogen-free).

Additional Details

The SMA5J22AHE3/5A is a bidirectional TVS, offering symmetrical protection. It has a standoff voltage of 22V. It's crucial to choose a TVS diode with a standoff voltage that is appropriately higher than the normal operating voltage of the protected circuit to avoid any impact on normal operation. The clamping voltage is an important parameter; it indicates the maximum voltage that the TVS diode will allow to pass through to the protected circuit during a surge event. The peak pulse current rating specifies the maximum surge current that the TVS diode can safely handle. Operating temperature range is typically -65°C to +150°C. The device’s construction utilizes glass passivated chip junction technology for enhanced reliability and performance. It offers solderable matte tin plated leads.