BSS138 MOFET: Pinout, Feature, Package

BSS138 is a N-Channel Logic Level MOSFET.

BSS138 adopts SOT-23 package, the maximum Id is 220mA, the maximum voltage is 50V, and the power consumption is 360mW.

This blog provides you with a basic overview of the BSS138 MOSFET, including its pin descriptions, functions and specifications, equivalent products, etc., to help you quickly understand what BSS138 is.

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Catalog

BSS138 MOSFET Pinout

BSS138 MOSFET Features

• Logic Level N-Channel MOSFET with low on-state resistance
• Continuous Drain Current (ID) is 200mA
• Drain Source Voltage (VDS) is 50V
• On-state Resistance is 3.5Ω
• Minimum Gate threshold voltage (VGS-th) is 0.5V
• Maximum Gate threshold voltage (VGS-th) is 1.5V
• Turn ON and Turn off time is 20ns each
• Available in SOT23 SMD package

Note: The complete technical information can be found at the BSS138 datasheet given at the end of this page.

BSS138 MOSFET Alternative

FDC558, FDC666, BS170, 2N7000, NTR4003, 2N7002,

BSS138 MOSFET Equivalent

FDN358P, BSS84

Other N-Channel MOSFETs

BS170N, IRF3205, IRF540N, 2N7000, IRF1010E,

BSS138 MOSFET Overview

BSS138 MOSFET

The BSS138 is a compact N-Channel Mosfet Logic Level. The mosfet has a very low threshold voltage of 0.5V and can therefore be used with any low voltage application circuit and for level shifting applications. Adding to this, the Mosfet also has low on-state resistance and low input capability, which makes it efficient in switching circuits. Due to the compact nature of the mosfet, it is widely used in portable applications such as cell phones and other power management circuits.

The BSS138 is slightly expensive for its specification, so if you're looking for a cheap alternative, check 2N7002. However, with the on-state resistance and the Mosfet threshold voltage, you have to compensate slightly. This mosfet comes in an SMD package and can therefore be used for compact applications. A significant disadvantage of the mosfet is its low drain current; it can provide a continuous current of 200mA and peak currents of up to 1A at maximum threshold voltage. Anything more than that is going to damage the mosfet.

BSS138 MOSFET Applications

• Low current and Low Voltage switching applications
• Logic Level Shifters
• DC-DC converts
• eMobility applications
• Application where low on-state resistance is required.
• Power management applications

BSS138 MOSFET Package

The Mosfet is available in the SOT23 and TO-92 packages, the dimensions of the SOT23 package are shown below. Please refer to the BSS138 data sheet below for additional dimensions.

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Component Datasheet

BSS138 Datasheet

Ordering & Quality

Photo	Mfr. Part #	Company	Description	Package	PDF	Qty	Pricing (USD)
	BSS138-7-F	Company:Diodes Incorporated	Remark:MOSFET N-CH 50V 200MA SOT23-3	Package:SOT-23-3	DataSheet	In Stock:720000 Inquiry	Price: 3000+: $0.03591 6000+: $0.03106 9000+: $0.02576 30000+: $0.02530 75000+: $0.02273	Inquiry
	BSS138BKS-115	Company:Nexperia USA Inc.	Remark:MOSFET 2N-CH 60V 0.32A 6TSSOP	Package:6-TSSOP, SC-88, SOT-363	DataSheet	In Stock:3000 Inquiry	Price: 3000+: $0.06060 6000+: $0.05550 9000+: $0.04800 30000+: $0.04710 75000+: $0.03900	Inquiry
	BSS138DW-7-F	Company:Diodes Incorporated	Remark:MOSFET 2N-CH 50V 0.2A SC70-6	Package:6-TSSOP, SC-88, SOT-363	DataSheet	In Stock:420000 Inquiry	Price: 3000+: $0.12347 6000+: $0.11363 9000+: $0.10226 30000+: $0.10075 75000+: $0.09469	Inquiry
	BSS138K	Company:ON Semiconductor	Remark:MOSFET N-CH 50V 220MA SOT-23-3	Package:SOT-23-3	DataSheet	In Stock:183000 Inquiry	Price: 3000+: $0.06968 6000+: $0.06027 9000+: $0.04998 30000+: $0.04910 75000+: $0.04410	Inquiry
	BSS138LT1G	Company:ON Semiconductor	Remark:MOSFET N-CH 50V 200MA SOT-23	Package:SOT-23-3 (TO-236)	DataSheet	In Stock:On Order Inquiry	Price: 3000+: $0.04527 6000+: $0.03916 9000+: $0.03247 30000+: $0.03190 75000+: $0.02865	Inquiry
	BSS138LT3G	Company:ON Semiconductor	Remark:MOSFET N-CH 50V 200MA SOT-23	Package:SOT-23-3 (TO-236)	DataSheet	In Stock:40000 Inquiry	Price: 10000+: $0.03247 30000+: $0.03190 50000+: $0.02865 100000+: $0.02579	Inquiry
	BSS138N-E6327	Company:Infineon Technologies	Remark:N-Channel 60V 230mA (Ta) 360mW (Ta) Surface Mount SOT-23-3	Package:TO-236-3, SC-59, SOT-23-3	DataSheet	In Stock:On Order Inquiry	Price: Call	Inquiry
	BSS138NH6327XTSA2	Company:Infineon Technologies	Remark:MOSFET N-CH 60V 230MA SOT-23	Package:SOT-23-3	DataSheet	In Stock:66000 Inquiry	Price: 3000+: $0.06161 6000+: $0.05643 9000+: $0.04880 30000+: $0.04789 75000+: $0.03965	Inquiry
	BSS138NH6433XTMA1	Company:Infineon Technologies	Remark:N-Channel 60V 230mA (Ta) 360mW (Ta) Surface Mount SOT-23-3	Package:TO-236-3, SC-59, SOT-23-3	DataSheet	In Stock:On Order Inquiry	Price: 1+: $0.35000 10+: $0.29000 25+: $0.24320 100+: $0.11880 500+: $0.09910 1000+: $0.06885 2500+: $0.06399 5000+: $0.05535 10000+: $0.04590 30000+: $0.04509 50000+: $0.04050 100000+: $0.03591 250000+: $0.03510	Inquiry
	BSS138NL6327HTSA1	Company:Infineon Technologies	Remark:N-Channel 60V 230mA (Ta) 360mW (Ta) Surface Mount SOT-23-3	Package:TO-236-3, SC-59, SOT-23-3	DataSheet	In Stock:On Order Inquiry	Price: Call	Inquiry