Overview
The BSS138TA-79 is an N-channel enhancement mode MOSFET produced by Diodes Incorporated. This component is designed to offer high efficiency and superior switching performance, making it ideal for various power management applications. The BSS138 is known for its low on-state resistance, low gate threshold voltage, and fast switching speed, which are critical for high-performance electronic systems.
Key Specifications
| Characteristic | Symbol | Value | Unit | Test Condition |
|---|---|---|---|---|
| Drain-Source Voltage | VDSS | 50 | V | VGS = 0V, ID = 250µA |
| Gate-Source Voltage Continuous | VGSS | ±20 | V | |
| Gate-Source Voltage Non-Repetitive, Pulse Width < 50µs | VGSS | ±40 | V | |
| Drain Current Continuous | ID | 200 | mA | |
| Pulsed Drain Current (10µs Pulse Duty Cycle = 1%) | IDM | 1 | A | |
| Gate Threshold Voltage | VGS(TH) | 0.5 - 1.5 | V | VDS = VGS, ID = 250µA |
| Static Drain-Source On-Resistance | RDS(ON) | 1.4 - 3.5 | Ω | VGS = 10V, ID = 0.22A |
| Input Capacitance | Ciss | 50 | pF | VDS = 10V, VGS = 0V, f = 1.0MHz |
| Operating and Storage Temperature Range | TJ, TSTG | -55 to +150 | °C |
Key Features
- Low On-Resistance: The BSS138 features a low on-state resistance (RDS(ON)) of 1.4 to 3.5 Ω at VGS = 10V, which enhances efficiency in power management applications.
- Low Gate Threshold Voltage: With a gate threshold voltage (VGS(TH)) of 0.5 to 1.5 V, this MOSFET is easy to switch on and off.
- Low Input Capacitance: The input capacitance (Ciss) is 50 pF, which helps in reducing the switching time and improving overall performance.
- Fast Switching Speed: The BSS138 has fast switching times, with turn-on and turn-off delay times of approximately 20 ns each.
- Low Input/Output Leakage: This MOSFET has low input/output leakage currents, ensuring minimal power loss during operation.
- Environmentally Friendly: The BSS138 is totally lead-free, fully RoHS compliant, halogen-free, and antimony-free, making it a “green” device.
- High Reliability: Qualified to JEDEC standards for high reliability and available in an automotive-compliant version (BSS138Q).
Applications
- Power Management: Ideal for high-efficiency power-management applications due to its low on-state resistance and fast switching speed.
- Systems/Load Switches: Suitable for use in systems and load switches where low power consumption and high switching performance are required.
- Automotive Systems: An automotive-compliant version (BSS138Q) is available, making it suitable for use in automotive electronics.
- Industrial and Consumer Electronics: Can be used in various industrial and consumer electronic devices that require efficient power management.
Q & A
- What is the maximum drain-source voltage of the BSS138?
The maximum drain-source voltage (VDSS) of the BSS138 is 50 V.
- What is the typical gate threshold voltage of the BSS138?
The typical gate threshold voltage (VGS(TH)) of the BSS138 is 1.2 V.
- What is the maximum continuous drain current of the BSS138?
The maximum continuous drain current (ID) of the BSS138 is 200 mA.
- What is the typical on-state resistance of the BSS138?
The typical on-state resistance (RDS(ON)) of the BSS138 is 1.4 to 3.5 Ω at VGS = 10V.
- Is the BSS138 environmentally friendly?
Yes, the BSS138 is totally lead-free, fully RoHS compliant, halogen-free, and antimony-free, making it a “green” device.
- What is the operating temperature range of the BSS138?
The operating and storage temperature range of the BSS138 is -55 to +150 °C.
- What package types are available for the BSS138?
The BSS138 is available in the SOT23 package.
- Is the BSS138 suitable for automotive applications?
Yes, an automotive-compliant version (BSS138Q) is available.
- What are the key benefits of using the BSS138 in power management applications?
The key benefits include low on-state resistance, low gate threshold voltage, low input capacitance, and fast switching speed.
- Is the BSS138 qualified to any industry standards?
Yes, the BSS138 is qualified to JEDEC standards for high reliability.
