SHENZHEN GANGXINLI ELECTRONICS CO.,LTD
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SHENZHEN GANGXINLI ELECTRONICS CO.,LTD
Professional Electronic Component Distributor!
2026/1/5
BSS138K is an N-channel MOSFET belonging to discrete semiconductor products, developed by onsemi. It features surface mount packaging and stable active status, specifically designed for various low-power switching applications requiring reliable performance across a wide temperature range.
Category:Discrete Semiconductor Products,Transistors,FETs, MOSFETs,Single FETs, MOSFETs
Mfr:onsemi
Packaging:Tape & Reel
Part Status:Active
FET Type:N-Channel
Technology:MOSFET (Metal Oxide)
Drain to Source Voltage (Vdss):50 V
Current - Continuous Drain (Id) @ 25°C:220mA (Ta)
Drive Voltage (Max Rds On, Min Rds On):1.8V, 2.5V
Rds On (Max) @ Id, Vgs:1.6Ohm @ 50mA, 5V
Vgs(th) (Max) @ Id:1.2V @ 250µA
Gate Charge (Qg) (Max) @ Vgs:2.4 nC @ 10 V
Vgs (Max):±12V
Power Dissipation (Max):350mW (Ta)
Operating Temperature:-55°C ~ 150°C (TJ)
Mounting Type:Surface Mount
Package / Case:TO-236-3, SC-59, SOT-23-3
N-Channel Type:Adopts N-channel MOSFET technology, enabling efficient low-power switching with excellent on-state performance for signal and power control applications.
Low On-Resistance:Features maximum Rds On of 1.6Ohm @ 50mA, 5V, minimizing power loss during operation and improving the overall energy efficiency of the circuit.
Wide Vdss Range:Boasts a 50V drain-to-source voltage (Vdss), providing strong adaptability to different medium-voltage power supply environments and ensuring safe operation under various working conditions.
Low Threshold Voltage:Has a maximum gate-source threshold voltage (Vgs(th)) of 1.2V @ 250µA, allowing for easy drive with low-voltage control signals, suitable for battery-powered low-voltage systems.
Low Gate Charge:Features a maximum gate charge (Qg) of 2.4nC @ 10V, enabling fast switching speeds and reducing switching losses, ideal for high-frequency switching applications.
Broad Temperature Adaptability:Operates stably in the temperature range of -55°C ~ 150°C (TJ), capable of withstanding extreme cold and high-temperature environments, suitable for harsh industrial and automotive auxiliary scenarios.
Compact Packaging:Comes in TO-236-3, SC-59, SOT-23-3 surface mount packages, facilitating compact PCB layout design and supporting high-efficiency automated assembly processes.
Consumer Electronics Switching:Used as a low-power switch in portable consumer electronics, such as smartphone power management modules, tablet backlight control circuits, and Bluetooth headset charging interfaces.
Industrial Sensor Circuits:Applied in industrial sensor signal switching and amplification circuits, like photoelectric sensor output control and temperature sensor signal processing modules.
Automotive Auxiliary Electronics:Suitable for automotive auxiliary electronic systems, such as car door light control switches, in-vehicle USB charger switching circuits, and dashboard backlight dimming modules.
Power Supply Modules:Utilized in low-power DC-DC converter circuits, such as small-sized power adapters, portable battery chargers, and power management units (PMUs) for IoT devices.
LED Lighting Control:Used for switching control in low-power LED lighting systems, such as LED indicator lights in home appliances, LED strip dimming circuits, and automotive interior LED lighting controls.
BSS138K is a high-performance N-channel MOSFET with the advantages of low on-resistance, wide voltage and temperature adaptability, and compact packaging. It is widely used in consumer electronics, industrial sensors, automotive auxiliary systems, etc., providing reliable switching performance and contributing to the miniaturization and energy efficiency of electronic products.