The SL1935C is a Transient Voltage Suppressor (TVS) diode manufactured by Microsemi Corporation. This device is designed to protect sensitive electronic equipment from voltage transients induced by lightning, ESD (Electrostatic Discharge), and inductive switching. It offers fast response time and low clamping voltage, making it suitable for protecting a variety of applications.

Applications:

• Telecom Equipment: Protection of telephone lines, modems, and other telecom interfaces.
• Data Lines: Protecting RS-232, RS-485, and other data communication lines.
• Microprocessor-Based Systems: Safeguarding microcontrollers and other sensitive ICs.
• Industrial Control: Protecting sensors, actuators, and control circuitry.
• Power Supplies: Providing transient protection on DC power input lines.

Features:

• Fast Response Time: Provides quick reaction to transient overvoltage events.
• Low Clamping Voltage: Limits the voltage across the protected component during a surge.
• High Surge Capability: Capable of handling high surge currents without failure.
• Unidirectional Configuration: Provides protection against positive polarity transients.
• Small Footprint: Available in compact surface-mount packages.
• RoHS Compliant: Meets environmental standards for lead-free manufacturing.

Benefits:

• Increased System Reliability: Protects sensitive circuitry from damage due to voltage surges.
• Reduced Downtime: Minimizes equipment failure and associated downtime costs.
• Lower Maintenance Costs: Reduces the need for repairs and replacements due to surge damage.
• Enhanced System Performance: Ensures stable operation of equipment in noisy electrical environments.
• Compliance with Regulatory Standards: Facilitates compliance with EMC and safety standards.

Additional Details:

The SL1935C is typically available in a DO-214AA (SMB) package. Key specifications include a standoff voltage around 35V, peak pulse power dissipation (dependent on pulse waveform, e.g., 600W for a 10/1000µs pulse), and low incremental surge resistance. It offers excellent clamping characteristics, minimizing overshoot voltage during transient events. This TVS diode is designed for printed circuit board (PCB) mounting and is well-suited for applications where space is limited. The operating temperature range typically spans from -55°C to +150°C.