Name: SLESD5491S ESD Protection Diode
SKU: ES-AR-5491-D
Availability: InStock

SLESD5491S ESD Protection Diode

₹7.68 incl. GST

A low-capacitance ESD protection diode designed to protect high-speed data lines from voltage spikes and electrostatic discharge.

Availability: 450 in stock

The SLESD5491S from Semtech Corporation (or equivalent manufacturer) is a low-capacitance ESD protection diode designed to safeguard sensitive electronic circuits from electrostatic discharge (ESD) and transient voltage spikes.
Optimized for high-speed data lines, this device offers fast response time, low clamping voltage, and minimal signal distortion, making it ideal for protecting USB, SPI, UART, and other communication interfaces. Its compact SMD package allows easy integration into space-constrained PCB designs such as flight controllers, embedded systems, and portable electronics.

Key Features
Protection Capability
ESD protection up to ±8kV contact / ±15kV air (IEC 61000-4-2 typical)
Fast transient response time
Low clamping voltage for effective protection

Electrical Characteristic
Low capacitanc (suitable for high-speed signals)
Low leakage current
Bidirectional protection (depending on configuration)

Performance
Minimal signal distortion
High reliability under repeated ESD events
Designed for high-speed interfaces

Mechanical
Compact SMD package (SOD-523 / similar)
Suitable for high-density PCB layouts

Compatibility
USB, UART, SPI, I2C lines
RF and communication interfaces
MCU GPIO protection

Package Information
Type: TVS / ESD Protection Diode
Package: SOD-523 (or equivalent)
Mounting Type: Surface Mount (SMD)

Package Contents
1 × SLESD5491S ESD Protection Diode

Applications
USB and high-speed data line protection
Microcontroller I/O protection
Flight controllers and embedded systems
Communication interfaces (UART, SPI, I2C)
Consumer electronics and portable devices

Part Number Breakdown (Reference)
SLESD → ESD protection series
5491 → Device configuration / rating
S → Package or variant code

Datasheet: -SLESD5491S SOD-523