The SM5S26 is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay. It's specifically designed to protect sensitive electronic devices from voltage transients induced by lightning, ESD (Electrostatic Discharge), and inductive switching. This component is part of the SM5S series and offers a precise voltage rating and power dissipation capacity to suit varied applications.

Applications

• I/O Interface Protection
• Protection of sensitive equipment from overvoltage
• AC and DC Power Line Protection
• Protection of Microprocessors
• Signal Line Protection

Features

• Peak pulse power of 5000 W with a 10/1000 μs waveform, at a repetition rate (duty cycle) of 0.01 %.
• Excellent clamping capabilities.
• Low incremental surge resistance.
• Low reverse leakage current: Typically less than 1 μA above 12 V.
• Fast response time: Typically less than 1.0 ps from 0 V to VBR minimum.
• Available in both unidirectional and bidirectional versions.
• RoHS compliant per directive 2011/65/EU and in accordance with WEEE 2002/96/EC.

Benefits

• Offers robust overvoltage protection, enhancing the reliability of electronic systems.
• Minimizes voltage overshoot during transient events, thus protecting downstream components.
• Aids in meeting industry standards for surge protection.
• Reduces system downtime and cuts maintenance costs associated with voltage-related failures.
• Compact package design allows for space-efficient applications.

Additional Details

The SM5S26 features a standoff voltage of 26 V. When subjected to a peak pulse current of 32.1 A, the clamping voltage is typically around 42.1 V. It comes in an SMC (DO-214AB) package, suitable for surface mounting. The diode is engineered to handle substantial surge currents, making it ideal for environments where transient voltage occurrences are a concern. Its operating temperature typically ranges from -55°C to +150°C.

The unidirectional configuration is generally used for DC circuits, while the bidirectional configuration is more suitable for AC circuits or DC circuits where reverse polarity protection is necessary. Proper PCB layout is essential to ensure optimal performance, and it's recommended to keep trace lengths as short as possible to minimize parasitic inductance. The device's construction is lead-free, and it adheres to RoHS standards.