BSS138K

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BSS138K

SMALL SIGNAL FIELD-EFFECT TRANSI

  • Manufacturer
  • Mfr. Part #BSS138K
  • Package SOT23
  • Datasheet
  • In Stock7855

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Specifications

Package Bulk
ProductStatus Active
FETType N-Channel
Technology MOSFET (Metal Oxide)
DraintoSourceVoltage(Vdss) 50 V
Current-ContinuousDrain(Id)@25°C 220mA (Ta)
DriveVoltage(MaxRdsOnMinRdsOn) 1.8V, 2.5V
RdsOn(Max)@IdVgs 1.6Ohm @ 50mA, 5V
Vgs(th)(Max)@Id 1.2V @ 250µA
GateCharge(Qg)(Max)@Vgs 2.4 nC @ 10 V
Vgs(Max) ±12V
InputCapacitance(Ciss)(Max)@Vds 58 pF @ 25 V
PowerDissipation(Max) 350mW (Ta)
OperatingTemperature -55°C ~ 150°C (TJ)
MountingType Surface Mount
SupplierDevicePackage SOT-23-3

Overview

Description

BSS138K is a low-voltage N-channel MOSFET (metal-oxide-semiconductor field-effect transistor) designed for various electronic applications. It features low on-resistance and fast switching capabilities, making it ideal for use in power management circuits, switching applications, and signal amplification.
Key specifications typically include a maximum drain-source voltage (V_DS) of around 50V, a continuous drain current (I_D) of about 200mA, and a low gate threshold voltage (V_GS(th)), which allows it to be driven effectively by low-voltage logic levels.
This MOSFET is often housed in a compact SMD (surface mount device) package, making it suitable for space-constrained applications on printed circuit boards (PCBs). Its efficiency and reliability make it popular in consumer electronics, automotive systems, and industrial applications.
When using BSS138K, it is essential to consider its thermal performance and ensure proper heat dissipation in high-power scenarios to prevent damage.

Features

The BSS138K is a N-channel MOSFET designed for low-voltage applications. Key features include:
1. Voltage Rating: It has a maximum drain-source voltage (V_DS) of 50V, making it suitable for various low-voltage switching applications.
2. Current Handling: The continuous drain current (I_D) is up to 220 mA, allowing it to handle moderate loads effectively.
3. On-Resistance: It has a low on-resistance (R_DS(on)) of approximately 3.5 ohms at a gate-source voltage (V_GS) of 10V, which helps reduce power loss during operation.
4. Gate Threshold Voltage: The gate threshold voltage (V_GS(th)) ranges from 0.8V to 3V, enabling efficient switching at lower voltages.
5. Package Type: Typically available in a TO-92 package, facilitating easy integration into circuits.
6. Fast Switching: Suitable for high-speed switching applications, making it ideal for use in digital circuits and power management.
Overall, the BSS138K is a versatile and efficient MOSFET for various electronic and power applications.

Package

The BSS138K is typically packaged in a SOT-23 surface-mount package. This compact package allows for efficient use of space on printed circuit boards while providing good thermal performance for the N-channel MOSFET.

Pinout

The BSS138K is an N-channel MOSFET commonly used in low-power applications. It typically comes in a TO-92 package, which has three pins.
Pin Configuration:
1. Gate (G): This pin is used to control the MOSFET. A voltage applied here allows current to flow between the drain and source.
2. Drain (D): This pin is where the output current flows out of the MOSFET. It is connected to the load.
3. Source (S): This pin is connected to ground or the negative side of the power supply, serving as the return path for the current.
Function: The BSS138K operates as a switch or amplifier, allowing for the control of larger currents using small input signals at the gate. It has a maximum drain-source voltage of 50V and can handle a continuous drain current of approximately 220mA, making it suitable for applications like signal switching, level shifting, and driving small loads.

Manufacturer

The BSS138K is manufactured by Nexperia, a company specializing in the production of discrete, logic, and MOSFET semiconductors. Nexperia is known for its high-quality semiconductor solutions and operates as a global leader in the electronics industry. The company emerged as a spin-off from NXP Semiconductors and focuses on providing efficient and reliable components for use in various applications, including automotive, industrial, and consumer electronics. Nexperia's portfolio includes a wide range of products, with a strong emphasis on innovation and sustainability in semiconductor manufacturing.

Application

The BSS138K is a N-channel MOSFET primarily used in low-power switching applications, such as signal amplification and electronic switching circuits. It is commonly found in low-voltage and low-current applications, including automated systems, microcontroller interfacing, LED drivers, and power management circuits. Additionally, it is utilized in load switching, relay drivers, and as a level shifter in digital logic applications.

Equivalent

Equivalent products to the BSS138K chip include the 2N7000, 2N7002, and BS170 MOSFETs. These components are N-channel MOSFETs suitable for low-power switching applications and are often used interchangeably depending on the specific requirements, such as voltage and current ratings. Always check the datasheets for exact specifications and compatibility.

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