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BS170 N-Channel MOSFET: Pinout, Equivalent and Datasheet

FAIRCHILD SEMICONDUCTOR BS170.....MOSFET Transistor, N Channel, 500 mA, 60 V, 1.2 ohm, 10 V, 2.1 V Hi fellas, I am back to give you a post about electronic components BS170.

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Aug 30, 2021

Penelope Ivan

How to make a simple LED light sensor (MOSFET transistor BS170, LEDs as photovoltaic cells)

 

FAIRCHILD SEMICONDUCTOR BS170.....MOSFET Transistor, N Channel, 500 mA, 60 V, 1.2 ohm, 10 V, 2.1 V

Hi fellas, I am back to give you a post about electronic components BS170. BS170 is a well-known N channel MOSFET manufactured in the TO-92 package. This article mainly introduces pinout, equivalent, datasheet, and other detailed information about On Semiconductor BS170.

BS170

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BS170 Description

BS170 is a well-known N channel MOSFET manufactured in the TO-92 package. produced using Fairchild's proprietary high-density DMOS cell technology.  

 

This ultra-high-density process is designed to minimize resistance in the state while providing robust, reliable, and fast switching performance. 

 

It can be used for both switching and amplification purposes. When used as a switch it can drive a load of 500mA. It is able to perform fast switching and capable to switch load in around 7 nanoseconds due to which it can be used in high-speed circuits. 

 

It can also perform well on low voltage due to which it is an ideal MOSFET to use in portable and battery-operated applications. Other than that it can also be used as an amplifier and you can use it in your audio amplifier circuits and also for any general-purpose signal amplification requirements. 

 

It is also suitable for low voltage and low current applications such as small servo motor control, power MOSFET gate drivers, and other switching applications.

BS170 Pinout

BS170 CAD Model

Symbol

Footprint

3D Model

BS170 Features

-Available in a TO-92 package

-Transistor Type: N Channel

-Voltage Applied From Drain to Source: 60V(Maximum)

-Gate to Source Voltage Should Be: ±20V(Maximum)

-Continues Drain Current is: 500mA(Maximum)

-Pulsed Drain Current is: 500mA(Maximum)

-Power Dissipation is: 830mW(Maximum)

-Voltage Required to Conduct: 0.8V(Minimum)

-Storage & Operating temperature Should Be: -55 to +150 Celsius

-Pb-Free device

-Low Offset and Error Voltage

-Easily Driven Without Buffer

-High-Density Cell Design to Minimize ON-state Resistance-RDS(ON)

-Voltage Controlled Small Signal Switch

-High Saturation Current Capability

-Rugged and Reliable

-Fast Switching (TON = 4ns)

 

Specifications

ON Semiconductor BS170 technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor BS170.

BS170 Tech Specifications

ON Semiconductor BS170 technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor BS170.

Product Attribute Attribute Value
Lifecycle StatusACTIVE (Last Updated: 1 day ago)
Factory Lead Time11 Weeks
Contact PlatingCopper, Silver, Tin
MountThrough Hole
Mounting TypeThrough Hole
Package / CaseTO-226-3, TO-92-3 (TO-226AA)
Number of Pins3Pins
Supplier Device PackageTO-92-3
Weight4.535924g
Current - Continuous Drain (Id) @ 25℃500mA Ta
Drive Voltage (Max Rds On, Min Rds On)10V
Number of Elements1 Element
Power Dissipation (Max)830mW Ta
Operating Temperature-55°C~150°C TJ
PackagingBulk
Published2005
Part StatusActive
Product Attribute Attribute Value
Moisture Sensitivity Level (MSL)1 (Unlimited)
Resistance5Ohm
Max Operating Temperature150°C
Min Operating Temperature-55°C
Voltage - Rated DC60V
Current Rating500mA
Base Part NumberBS170
Voltage60V
Element ConfigurationSingle
Current5A
Power Dissipation830mW
FET TypeN-Channel
Rds On (Max) @ Id, Vgs5Ohm @ 200mA, 10V
Vgs(th) (Max) @ Id3V @ 1mA
Input Capacitance (Ciss) (Max) @ Vds40pF @ 10V
Drain to Source Voltage (Vdss)60V
Vgs (Max)±20V
Product Attribute Attribute Value
Continuous Drain Current (ID)500mA
Threshold Voltage2.1V
Gate to Source Voltage (Vgs)20V
Drain to Source Breakdown Voltage60V
Input Capacitance24pF
Drain to Source Resistance5Ohm
Rds On Max5 Ω
Nominal Vgs2.1 V
Height5.33mm
Length5.2mm
Width4.19mm
REACH SVHCNo SVHC
Radiation HardeningNo
RoHS StatusROHS3 Compliant
Lead FreeLead Free
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BS170 Alternatives

Where to use BS170?

BS170 can be used for any general-purpose switching and amplification purposes, it can be used as a switch to drive loads under 500mA which is enough drain current to drive most of the relays, lamps, LEDs, etc. Additionally, it can also be used at the output of microcontrollers and platforms like Arduino and raspberry pi to drive loads.

 

On the other hand, it can also be used as an audio amplifier, in audio amplifier stages, low-level signal amplification, etc. Wiring the MOSFETs are almost the same as we wire BJT transistors. In MOSFETs, the Gate is used to control the transistor whereas in BJT it is Base, but the BJTs are current control devices and MOSFETs are voltage control devices. And the gate in MOSFETs requires a small amount of voltage to control current through its Drain to Source.

How to use BS170?

In this circuit, we are just turning ON/OFF an LED using BS170 n-channel MOSFET. Here, the Gate and Drain terminal is connected through a 5v DC source, and LED is connected to the Source. As the gate pulse is applied by turning ON the switch, MOSFET conducts current through Drain to Source, and LED starts glowing. LED remains ON until the gate pulse is applied. As the gate pulse is removed LED turns OFF.

 

BS170 Applications

-Used in Fast Switching

-Used in Switching or driving loads under 500mA

-Used in Audio Amplification & Pre Amplification

-Used in Output of Microcontrollers

-Used in Output of ICS

-Used in Various types of signal amplification

-Used in Electronic Equipment — Industrial Automation (Machine Controls, Light Barriers, Vision Controls)

-Used in Battery operated systems

-Used in Solid-state relays

-Used in Drivers: Relays, Solenoids, Lamps, Hammers, Displays, Memories, Transistors, etc.

-Used in Direct Logic-Level Interface: TTL/CMOS

 

BS170 Package

BS170 Manufacturer

ON Semiconductor is a semiconductor supplier company. Products include power and signal management, logic, discrete, and custom devices for automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace, and power applications. ON Semiconductor runs a network of manufacturing facilities, sales offices, and design centers in North America, Europe, and the Asia Pacific regions. Its headquarter is in Phoenix, Arizona. 

Datasheet PDF

Download datasheets and manufacturer documentation for ON Semiconductor BS170.

BS170 Documents

Download datasheets and manufacturer documentation for BS170

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