The onsemi BAT54SLT1G is a compact, high-performance Schottky barrier diode designed primarily for low-voltage, high-speed switching applications. This component is part of onsemi's portfolio of small-signal Schottky diodes and is particularly well-suited for use in portable electronics, power management circuits, and digital logic protection, where fast response times and low forward voltage drops are crucial.

The BAT54SLT1G is housed in a SOT-23 (Surface-Mounted) package and contains a dual Schottky diode configuration in a common cathode arrangement, making it convenient for use in space-constrained designs. Its low forward voltage and fast switching characteristics make it ideal for circuits operating at low voltage and high frequencies, such as DC-DC converters and signal routing in communication devices.

## Key Features

* Dual Schottky Diodes in Common Cathode Configuration
The BAT54SLT1G integrates two Schottky diodes with a shared cathode, making it ideal for tasks like polarity protection, logic level shifting, and signal steering. This configuration reduces board space and increases design flexibility.

* Low Forward Voltage Drop (VF)
A typical feature of Schottky diodes, the BAT54SLT1G offers a low forward voltage drop, which is typically 0.24V at 1 mA, and about 0.30V at 10 mA. This low VF helps minimize power loss, especially critical in battery-powered applications.

* Fast Switching Speed
The diode's inherently fast reverse recovery time due to its Schottky barrier construction allows for high-speed switching, supporting high-frequency applications without introducing signal distortion or delay.

* Low Reverse Leakage Current
The BAT54SLT1G maintains low leakage currents, typically 2 µA at 25°C with -30V reverse voltage. This is essential for maintaining energy efficiency and reducing standby power consumption in sensitive electronic circuits.

* Compact SOT-23 Surface-Mount Package
With its small SOT-23 footprint, the BAT54SLT1G is optimized for surface-mount PCB designs, ideal for space-restricted environments like smartphones, IoT devices, and wearables.

* Lead-Free and RoHS Compliant
This device meets environmental standards for lead-free and RoHS compliance, ensuring safe usage in environmentally conscious and regulatory-compliant designs.

## Electrical Characteristics (Typical at TA = 25°C unless otherwise noted)

| Parameter | Symbol | Value | Unit |
| ------------------------------------------- | ---------- | ----------- | -------- |
| Forward Voltage (IF = 1 mA) | VF | 0.24 | V |
| Forward Voltage (IF = 10 mA) | VF | 0.30 | V |
| Forward Voltage (IF = 30 mA) | VF | 0.40 | V |
| Reverse Current (VR = 25 V) | IR | 2.0 (max) | µA |
| Total Capacitance (VR = 1 V) | CT | 10 | pF |
| Reverse Recovery Time | trr |