The SD20-0836R9UBM1 is a surface-mount varistor manufactured by AVX Corp/Kyocera Corp. It's designed to protect sensitive electronic components from voltage transients caused by electrostatic discharge (ESD), lightning strikes, and inductive switching.

Applications

• Automotive electronics: Protecting sensitive circuits in automotive control units (ECUs).
• Industrial equipment: Surge protection for programmable logic controllers (PLCs) and other industrial control systems.
• Power supplies: Input protection for power supplies against voltage surges.
• Telecommunications equipment: Protecting communication lines from ESD and lightning.
• Consumer electronics: Protecting sensitive ICs in mobile phones, tablets, and other consumer devices.

Features

• Surface-mount package: Facilitates easy and efficient PCB assembly.
• High surge current capability: Withstands high transient currents without failure.
• Fast response time: Quickly clamps voltage transients to protect sensitive components.
• Low clamping voltage: Limits the voltage across protected components to a safe level.
• RoHS compliant: Environmentally friendly, lead-free construction.
• Compact size: Allows for use in space-constrained applications.

Benefits

• Enhanced circuit protection: Prevents damage to sensitive electronic components from voltage transients.
• Improved system reliability: Reduces the risk of system failure due to ESD or surge events.
• Increased product lifespan: Extends the life of electronic devices by protecting them from overvoltage conditions.
• Reduced warranty costs: Minimizes the risk of product returns due to transient-related failures.
• Simplified PCB design: Easy to integrate into existing circuit designs.

Additional Details

The SD20-0836R9UBM1 is characterized by its voltage rating, surge current capability, and clamping voltage. It is designed for reflow soldering and is available in tape-and-reel packaging for automated assembly. The specific capacitance and leakage current will vary based on the specific datasheet revision. The operating temperature range is typically -40°C to +85°C. This varistor provides bi-directional protection, meaning it can protect against both positive and negative voltage transients. It is commonly used in applications requiring robust surge protection and high reliability.