Overview
The BAS40LT1G Schottky barrier diode, produced by onsemi, is designed for high-speed switching applications, circuit protection, and voltage clamping. This diode features an extremely low forward voltage, which reduces conduction loss and makes it ideal for handheld and portable applications where space is limited. The miniature surface mount package (SOT-23) enhances its suitability for compact designs.
Key Specifications
| Rating | Symbol | Value | Unit |
|---|---|---|---|
| Reverse Voltage | VR | 40 | V |
| Forward Power Dissipation @ TA = 25°C | PF | 225 mW (Derate above 25°C: 1.8 mW/°C) | mW / mW/°C |
| Operating Junction and Storage Temperature Range | TJ, Tstg | −55 to +150 | °C |
| Forward Continuous Current | IF | 120 mA | mA |
| Forward Surge Current (t = 1 s) | IFSM | 200 mA | mA |
| Forward Surge Current (t = 10 ms) | IFSM | 600 mA | mA |
| Thermal Resistance (Junction-to-Ambient) | RθJA | 508 °C/W (FR-4 @ minimum pad), 311 °C/W (FR-4 @ 1.0 x 1.0 in pad) | °C/W |
| Reverse Breakdown Voltage (IR = 10 μA) | V(BR)R | 40 V | V |
| Total Capacitance (VR = 1.0 V, f = 1.0 MHz) | CT | 5.0 pF | pF |
| Reverse Leakage (VR = 25 V) | IR | 1.0 μA | μA |
| Forward Voltage (IF = 1.0 mA) | VF | 380 mV | mV |
| Forward Voltage (IF = 10 mA) | VF | 500 mV | mV |
| Forward Voltage (IF = 40 mA) | VF | 1.0 V | V |
Key Features
- Extremely low forward voltage, reducing conduction loss.
- Miniature surface mount package (SOT-23) suitable for handheld and portable applications.
- S Prefix for automotive and other applications requiring unique site and control change requirements; AEC-Q101 qualified and PPAP capable.
- Pb-Free, Halogen Free/BFR Free, and RoHS compliant.
Applications
- High-speed switching applications.
- Circuit protection.
- Voltage clamping.
- Handheld and portable devices where space is limited.
- Automotive applications due to AEC-Q101 qualification.
Q & A
- What is the reverse voltage rating of the BAS40LT1G?
The reverse voltage rating is 40 V.
- What is the maximum forward continuous current for the BAS40LT1G?
The maximum forward continuous current is 120 mA.
- What is the thermal resistance (junction-to-ambient) for the BAS40LT1G?
The thermal resistance is 508 °C/W (FR-4 @ minimum pad) and 311 °C/W (FR-4 @ 1.0 x 1.0 in pad).
- Is the BAS40LT1G RoHS compliant?
- What are the typical applications for the BAS40LT1G?
The BAS40LT1G is used in high-speed switching applications, circuit protection, voltage clamping, and in handheld and portable devices.
- What is the operating temperature range for the BAS40LT1G?
The operating junction and storage temperature range is −55 to +150 °C.
- What is the forward surge current rating for the BAS40LT1G?
The forward surge current rating is 200 mA for 1 second and 600 mA for 10 milliseconds.
- What package type does the BAS40LT1G come in?
The BAS40LT1G comes in a SOT-23 (TO-236) package.
- Is the BAS40LT1G suitable for automotive applications?
- What is the total capacitance of the BAS40LT1G at 1 MHz?
The total capacitance is 5.0 pF at VR = 1.0 V and f = 1.0 MHz.
