NLSX3018DTR2G

onsemi NLSX3018DTR2G Detailed Overview

General Description
The onsemi NLSX3018DTR2G is a high-performance Schottky barrier rectifier diode designed for fast switching and low forward voltage drop, making it suitable for power supply, DC/DC converters, and general-purpose rectification applications. This diode offers excellent efficiency and thermal performance, enabling improved power management and energy savings in demanding electronic circuits. Its robust design ensures reliable operation under high current and voltage conditions with low reverse leakage current.

Key Features

* Schottky Barrier Technology: Provides low forward voltage drop and fast switching capability to minimize conduction losses and improve overall efficiency
* Low Forward Voltage (V\_F): Typically 0.45 V at rated current, reducing power dissipation and heat generation
* High Surge Current Capability: Supports high transient current pulses, enabling durability against inrush currents and transient events
* Low Reverse Leakage Current: Minimizes leakage current even at elevated temperatures, supporting energy-efficient designs
* High Reliability: Designed to withstand repetitive high surge currents and temperature cycling, ensuring long-term durability
* RoHS Compliant and Halogen-Free: Environmentally friendly packaging and materials comply with current industry standards
* Compact Package: Available in a compact surface-mount DO-214AC (SMA) package, ideal for space-constrained PCB layouts
* High Temperature Operation: Suitable for use in applications requiring operation over a wide temperature range, including harsh industrial environments

Electrical Specifications

* Maximum Repetitive Peak Reverse Voltage (V\_RRM): 30 V, allowing use in low-voltage rectification and power supply protection
* Average Forward Current (I\_F(AV)): 3 A continuous forward current capability, supporting moderate power levels
* Surge Forward Current (I\_FSM): Up to 100 A (non-repetitive), providing robustness during transient surge conditions
* Forward Voltage Drop (V\_F): Typically 0.45 V at 3 A, ensuring low conduction losses
* Reverse Leakage Current (I\_R): Maximum of 1 mA at rated voltage and 25°C, with leakage increasing at higher temperatures but remaining within acceptable limits
* Reverse Recovery Time: Very fast switching speed characteristic of Schottky diodes, typically in the nanosecond range, reducing switching losses in high-frequency circuits
* Junction Temperature Range: –55°C to +125°C, supporting industrial and automotive temperature requirements

Thermal and Mechanical Features

* Package: DO-214AC (SMA) surface-mount package with compact footprint and excellent thermal conduction
* Thermal Resistance (Junction to Ambient): Approximately 75°C/W (depending on PCB layout), enabling effective heat dissipation in compact designs
* Mounting: Designed for automated PCB assembly with standard reflow soldering processes
* Mechanical Robustness: Solid construction ensures vibration and shock resistance for reliable operation in automotive and industrial applications

Protection and Reliability Features

* Surge Current Capability: High surge current rating protects against damage during transient load events
* Thermal Stability: Stable operation across wide temperature ranges and under varying load conditions
* Electrostatic Discharge (ESD) Sensitivity: Robust device construction minimizes susceptibility to ESD damage during handling and operation

Typical Applications

* Power supply rectification and freewheeling diodes in DC/DC converters
* Reverse polarity and protection diodes in battery-powered and portable devices
* High-frequency switching power supplies and converters
* Automotive electronics including voltage clamping and power management
* Industrial equipment requiring reliable, efficient low-voltage rectification

Summary of Key Specifications

| Parameter | Specification |
| ------------------------------------------------ | ----------------------------- |
| Maximum Repetitive Peak Reverse Voltage (V\_RRM) | 30 V |
| Average Forward Current (I\_F(AV)) | 3 A |
| Surge Forward Current (I\_FSM) | 100 A (non-repetitive) |
| Forward Voltage Drop (V\_F) | 0.45 V @ 3 A |
| Reverse Leakage Current (I\_R) | ≤1 mA @ 25°C |
| Reverse Recovery Time | Very fast (nanoseconds range) |
| Operating Junction Temperature | –55°C to +125°C |
| Package Type | DO-214AC (SMA) Surface Mount |

Conclusion
The onsemi NLSX3018DTR2G Schottky diode is a highly efficient, fast-switching rectifier optimized for low-voltage power applications requiring minimal conduction loss and high reliability. Its low forward voltage drop and high surge current capability make it an excellent choice for DC/DC converters, power supplies, and protection circuits. The compact SMA package and robust thermal characteristics enable its integration into space-sensitive designs, while its wide operating temperature range supports use in demanding automotive and industrial environments.