The SMAJ48A-E3/61 is a surface-mount 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).

Applications:

• I/O port protection
• Automotive electronics protection
• Industrial control systems
• Telecom equipment protection
• Consumer electronics

Features:

• Surface Mount SMA package
• Glass passivated chip junction
• Excellent clamping capability
• Low incremental surge resistance
• Fast response time: typically less than 1.0 ps from 0 Volts to BV min
• Typical IR less than 1 μA above 12V
• RoHS compliant
• Halogen-free according to IEC 61249-2-21 definition
• AEC-Q101 qualified available

Benefits:

• Provides robust overvoltage protection, improving the reliability of electronic systems.
• Compact size allows for use in high-density circuit boards.
• Reduces equipment downtime and maintenance costs associated with transient voltage damage.
• Enhances system immunity to electrical noise and surges.
• AEC-Q101 qualification ensures suitability for automotive applications.

Additional Details:

The SMAJ48A-E3/61 has a standoff voltage of 48 V and a breakdown voltage ranging from 53.3 V to 59 V. It features a peak pulse power dissipation of 400 W at a 10/1000 μs waveform. The operating junction temperature range is from -55 °C to +150 °C. It is a unidirectional TVS diode. Its fast response time is critical for protecting sensitive components. The device is packaged in a DO-214AC (SMA) package. The clamping voltage at peak pulse current is 77.4V. The low incremental surge resistance ensures efficient clamping of transient voltages. The device conforms to RoHS standards, which restricts the use of certain hazardous substances. By diverting excess voltage away from sensitive components, it prevents damage and ensures continuous operation of the protected equipment.