BSS138TA BSS138TA is a 50V N-channel enhancement mode MOSFET from Diodes Incorporated. It offers 200mA continuous drain current, 3.5 Ohm Rds(on) at 10V, and comes in a SOT-23 surface mount package.
Mfr Part #:

BSS138TA

Available from 7 distributors
Mfr Name: Diodes Incorporated
Diodes Incorporated
BSS138TA is a 50V N-channel enhancement mode MOSFET from Diodes Incorporated. It offers 200mA continuous drain current, 3.5 Ohm Rds(on) at 10V, and comes in a SOT-23 surface mount package.
✓ Total Stock: 11,271 pcs
$ Price Range: $0.13 - $0.39

BSS138TA Available from 7 distributors

✓ Authorised
✓ Non-Authorised

BSS138TA Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current
Drain to Source Voltage (Vdss)
Drive Voltage (Max Rds On, Min Rds On)
FET Type
Halogen Free
Input Capacitance (Ciss) (Max) @ Vds
Mounting Type
Operating Temperature
Power Dissipation (Max)
Rds On (Max) @ Id, Vgs
Supplier Device Package
Tape & Reel
Tape Width
Technology
Vgs (Max)
Vgs(th) (Max) @ Id
Weight

BSS138TA Description

Short technical summary and product information.

The BSS138TA is a 50V N-channel enhancement mode vertical DMOS FET manufactured by Diodes Incorporated. It is designed for low-power switching and amplification applications where high efficiency and small footprint are required.

 

Key electrical specifications include a drain-source breakdown voltage of 50V, continuous drain current of 200mA at 25°C ambient, and a maximum Rds(on) of 3.5 Ohms at Vgs = 10V and Id = 220mA. The MOSFET can handle pulsed drain currents up to 800mA. The gate threshold voltage ranges from 0.5V to 1.5V, allowing logic-level drive capability.

 

The device is housed in a SOT-23 surface mount package (also known as TO-236-3 or SC-59) with a matt tin finish. It is rated for operation from -55°C to +150°C junction temperature. Thermal resistance junction-to-ambient is 357°C/W when mounted on a standard FR-4 PCB.

 

This component is RoHS compliant, lead-free, halogen and antimony free, and qualified to AEC-Q101 standards for high reliability. It is suitable for applications such as load switching, DC-DC converters, and logic level translation in automotive, industrial, and consumer electronics.

BSS138TA Quick Information

Product Type: N-Channel MOSFET
Series: BSS138
Canonical Name: BSS138TA N-Channel Enhancement Mode MOSFET
Subcategory: N-Channel Enhancement Mode MOSFET

BSS138TA Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): Level 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead Free

BSS138TA Estimated Pricing

Qty Low High
1+ $0.39 $0.39
10+ $0.24 $0.24
100+ $0.16 $0.16
500+ $0.13 $0.13
3,000+ $0.13 $0.13

Estimated market price range - modelled values for guidance only, not live distributor offers.

BSS138TA Features

  • N-channel enhancement mode vertical DMOS FET.
  • 50V drain-source breakdown voltage rating.
  • 200mA continuous drain current capability.
  • Low on-resistance of 3.5 Ohm at 10V.
  • SOT-23 surface mount package for compact designs.

BSS138TA Applications

  • Suitable for low-power load switching circuits.
  • Used in logic level conversion applications.
  • Ideal for DC-DC converter primary side switching.
  • Applicable in battery-powered portable devices.

BSS138TA FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the BSS138TA?

The drain-source voltage (Vdss) is 50V, and the gate-source voltage (Vgs) is ±20V maximum.

What package is the BSS138TA available in?

It is available in a SOT-23 surface mount package (also known as TO-236-3 or SC-59).

What is the operating temperature range of the BSS138TA?

The operating junction temperature range is -55°C to +150°C.

Is the BSS138TA RoHS compliant?

Yes, it is RoHS compliant and lead-free according to the datasheet.

What is the gate threshold voltage of the BSS138TA?

The gate threshold voltage ranges from 0.5V to 1.5V (tested at Id=250µA).

What is the maximum continuous drain current?

The maximum continuous drain current is 200mA at 25°C ambient temperature.

What is the on-resistance of the BSS138TA?

The maximum on-resistance is 3.5 Ohms at Vgs=10V and Id=220mA.

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