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BS170 datasheet | pinout & n-channel MOSFET

The BS170 is a popular N-channel MOSFET used in various applications, including as a switch and amplifier. Explore the BS170 pinout, specs, and circuit details in the Reference manual. Find equivalent transistors, replacement options, and substitutes for your projects. The threshold voltage, SMD configuration, and LTSpice model are also covered. Get complete information on its transistor equivalent, schematic, and NMOS capabilities.

Brands: Fairchild Semiconductor

Download: BS170 Datasheet PDF

Price: inquiry

In Stock: 28,587

FET Type: N-Channel

Drainto Source Voltage(Vdss): 60 V

Current-Continuous Drain(Id)@25°C: 300mA (Ta)

Package: TO-92

BS170 Pinout

BS170

Pins are defined as follows:

Pin	Symbol	Description
1	Gate	The gate control pin controls the on-off and off of the transistor by applying voltage.
2	Drain	The drain is the pin through which current flows into the MOSFET.
3	Source	The source is the pin through which current flows out of the MOSFET.

BS170 equivalent

BS170 pinout

The BS170 is a frequently used n-channel MOSFE tube. Its specific parameters are as follows: the maximum voltage value is 60V, which can meet the basic requirements of all low-voltage circuits; The maximum continuous flow current is 500mA, and the on-resistance (Rds(on) is about 1.2 ohms (typical value, up to 5 ohms), which can reduce power loss in small current applications. The BS170 switch takes about 20ns at a time, which is very suitable for use in high frequency switching circuits. Packaged as TO-92-3, it has the advantage of being small and easy TO weld. BS170 threshold voltage (Vgs(th)) is 0.8V to 3V, when the gate voltage reaches this range, the MOSFET starts to turn on, 0.8V to 3V This voltage range can be directly driven by the single chip computer (you can do not need to drive the circuit, in the product can further reduce the cost). In general, the selection of components should leave a 20% margin, so when using this transistor in circuit design, it is necessary to multiply all the maximum parameters by 0.8 to determine the selection. Because of the high quality and low price of the transistor, it is widely used in low-voltage circuit design needs to use the amplification function or switching function. The main application areas are signal amplification power, DCDC circuit and so on.

BS170 Replaceable Chip Table

Name	Type	Vdss	Vgs	Id	Pd	Package
MMBF170-7-F	N-MOSFET	60V	3V	500mA	300mW	SOT-23
SSM3K357R,LF	N-MOSFET	60V	1.3V	650mA	1W	SOT-23
WST2N7002A	N-MOSFET	60V	3V	700mA	250mW	SOT-23N
2N7002	N-MOSFET	60V	2.5V	500mA	225mW	SOT-23
ZVN2106GTA	N-MOSFET	60V	2.4V	710mA	2W	SOT-223-4

MMBF170-7-F

SSM3K357R,LF

WST2N7002A

2N7002

ZVN2106GTA