The SMA5J14CHE3/5A is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay. This component is designed to protect sensitive electronic equipment from voltage transients caused by events such as lightning strikes, inductive load switching, and electrostatic discharge (ESD). Its SMA (Surface Mount Assembly) package makes it ideal for applications demanding compact and efficient circuit designs.

Applications

• Protection of data lines and signal lines
• Voltage surge protection in portable devices
• Industrial control and automation equipment
• Power supply protection
• Telecommunications equipment

Features

• Unidirectional TVS diode
• SMA package for surface mount assembly
• Low profile design
• 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

• Enhances the reliability of electronic systems by providing robust protection against voltage transients.
• The SMA package enables efficient surface mount assembly, saving valuable board space.
• Reduces the likelihood of damage to vulnerable components from ESD and voltage surges, thereby minimizing downtime and repair expenses.
• Meets stringent industry standards for environmental responsibility (RoHS, WEEE, Halogen-free).

Additional Details

The SMA5J14CHE3/5A is characterized by a standoff voltage of 14V. Selecting a TVS diode with a standoff voltage slightly above the normal operating voltage of the circuit being protected is essential to avoid interference during normal operation. The clamping voltage represents the maximum voltage the TVS diode will allow to pass through during a surge. The peak pulse current rating specifies the maximum surge current that the TVS diode can safely handle without being damaged. The device is generally designed to operate within a temperature range of -65°C to +150°C. The glass passivated chip junction construction ensures high reliability and performance. Solderable matte tin-plated leads facilitate easy and reliable soldering.