The 1KSMB56A is a surface-mount Transient Voltage Suppressor (TVS) diode from Littelfuse, designed to protect sensitive electronic equipment from voltage transients induced by lightning, inductive load switching, and Electrostatic Discharge (ESD). This device is part of the 1KSMB series, known for its high surge capability and fast response time.

Applications:

• Protection of I/O Interfaces
• Voltage surge protection in consumer electronics
• Industrial equipment protection against voltage transients
• Telecommunication systems surge protection
• Power supply protection

Features:

• Surface mount SMB package
• Glass passivated junction
• Excellent clamping capability
• Typical IR less than 1 μA above 10V
• Fast response time: typically less than 1.0 ps from 0 Volts to BV min
• High temperature soldering guaranteed: 260°C/10 seconds at terminals
• Plastic package has Underwriters Laboratory Flammability Classification 94V-0
• 1000 W peak pulse power capability with a 10/1000 μs waveform, repetition rate (duty cycle): 0.01%

Benefits:

• Provides robust overvoltage protection for sensitive circuits
• Reduces downtime and maintenance costs by preventing damage from voltage transients
• Enhances the reliability and lifespan of electronic equipment
• Easy to integrate into existing designs due to its surface-mount package
• Complies with industry standards for safety and performance

Additional Details:

The 1KSMB56A has a standoff voltage of 56V and a breakdown voltage between 62.2V and 68.9V. Its peak pulse current is 16.2A with a 10/1000 μs waveform. The clamping voltage at this peak pulse current is 90.7V. It features a unidirectional configuration and operates within a temperature range of -55°C to +150°C. The device's SMB package allows for efficient heat dissipation and easy mounting onto printed circuit boards. It meets various industry standards, ensuring compliance and reliability in demanding applications. The plastic package is void-free molded plastic and has terminals that are solder plated per MIL-STD-750, method 2026.