Get a Sample
Request engineering samples to evaluate fit, validate alternatives, and keep design decisions moving before a larger order is placed.
Request evaluation samplesON SemiconductorDiscrete Semiconductor ProductsTransistors - FETs, MOSFETs - SingleON Semiconductor Transistors - FETs, MOSFETs - Single
BSS138W Transistors - FETs, MOSFETs - Single by ON Semiconductor
BSS138W is a Transistors - FETs, MOSFETs - Single model from ON Semiconductor, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Discrete Semiconductor Products / Transistors - FETs, MOSFETs - Single product path. Known package information currently points to SOT323 under the ON Semiconductor brand listing. MOSFET N-CH 50V 0.21A SOT323. TrustCompo combines the available model, brand, hierarchy, and specification details around BSS138W so buyers can move faster from review to quotation.
RoHS
Datasheet
Pictures are for reference only. Please contact us for the latest pictures.
Traceability and authenticity checks
Fast RFQ turnaround
Documentation support
Pre-shipment inspection review
Key specifications
Series
-
Min Quantity
1
Category
Discrete Semiconductor ProductsSub Category
Transistors - FETs, MOSFETs - SingleDescription
MOSFET N-CH 50V 0.21A SOT323
key Attributes
-
Datasheet
View BSS138W DatasheetTechnical document
Open The Official Datasheet
Review the latest datasheet for BSS138W from ON Semiconductor in a separate tab so engineers and buyers can check package, electrical characteristics, and application details without leaving this product page.
Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
RoHS, REACH, and lead-free documentation can be confirmed during RFQ
Traceability and Certificate of Conformance support available on request
Pre-shipment inspection report support for quality review
Trust signals
Globally recognized certifications
Visible certifications work best when they are paired with clear operational promises around traceability, handling, and inspection.
ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Ordering workflow
Understand how to order and what policies support the purchase
Use this section to see the fastest ordering path and the policy pages buyers usually review before confirming a component order.
How to order this product
A simple B2B flow helps engineering and procurement teams move from part review to commercial confirmation.
1
Confirm part and quantity
Review the part number, package, key specs, and target quantity so the quote request reflects the exact sourcing scope your team needs.
2
Send RFQ or sample request
Use Quick Quote for commercial pricing or Request Sample when engineering validation is still in progress and a smaller evaluation quantity is needed.
3
Align delivery, payment, and documentation
Before final release, confirm stock timing, shipment method, payment arrangement, and any traceability or inspection documents required by your process.
Policies buyers usually check
These pages explain the operating rules around samples, shipping, payment, and quality support before you place the order.
Shipping & Delivery
Review shipping origin, carrier options, delivery methods, and the practical factors that affect transit timing for global component orders.
Review shipping detailsPayment Terms
Understand supported payment methods, invoice handling, quote currency, and the commercial boundaries used for international B2B orders.
Review payment termsQuality & Traceability Center
See how incoming inspection, outgoing verification, traceability support, certifications, and additional testing fit into our quality workflow.
Review quality controlsStructured product content
Review The Product The Way Buyers Actually Evaluate It
Review overview, detailed specifications, and related sourcing content in one structured flow without scanning separate oversized sections.
Product overview
Overview
MOSFET N-CH 50V 0.21A SOT323
Fast scan
Popular Specs Surfaced First
Product Attribute
Part Status
Active
Product Attribute
Lead Free
Lead Free
Product Attribute
Lifecycle Status
ACTIVE (Last Updated: 3 days ago)
Product Attribute
Mounting Type
Surface Mount
Product Attribute
Min Operating Temperature
-55°C
Product Attribute
Factory Lead Time
12 Weeks
Part Status
Active
Lead Free
Lead Free
Lifecycle Status
ACTIVE (Last Updated: 3 days ago)
Mounting Type
Surface Mount
Min Operating Temperature
-55°C
Factory Lead Time
12 Weeks
Packaging
Tape & Reel (TR)
Published
2010
Max Junction Temperature (Tj)
150°C
Element Configuration
Single
Manufacturer
ON Semiconductor
Height
1.1mm
Width
1.25mm
Input Capacitance
38pF
Power Dissipation
340mW
Technology
MOSFET (Metal Oxide)
FET Type
N-Channel
Sub-Categories
Transistors - FETs, MOSFETs - Single
Vgs (Max)
±20V
Categories
Discrete Semiconductor Products
Operating Temperature
-55°C~150°C TJ
Drive Voltage (Max Rds On,Min Rds On)
4.5V 10V
Contact Plating
Tin
Radiation Hardening
No
Mount
Surface Mount
Number Of Pins
3
Gate To Source Voltage (Vgs)
20V
Length
2mm
Max Operating Temperature
150°C
Voltage
50V
Current
2A
Package / Case
SC-70, SOT-323
Threshold Voltage
1.3V
Resistance
3.5Ohm
Drain To Source Breakdown Voltage
50V
Fall Time (Typ)
6.5 ns
Vgs(Th) (Max) @ Id
1.5V @ 1mA
Base Part Number
BSS138
Rds On (Max) @ Id, Vgs
3.5Ohm @ 220mA, 10V
Continuous Drain Current (ID)
210mA
Manufacturer'S Part No.
BSS138W
Input Capacitance (Ciss) (Max) @ Vds
38pF @ 25V
Current - Continuous Drain (Id) @ 25°C
210mA Ta
Supplier Device Package
SC-70 (SOT323)
Power Dissipation-Max
340mW Ta
Gate Charge (Qg) (Max) @ Vgs
1.1nC @ 10V
RoHS Status
ROHS3 Compliant
REACH SVHC
No SVHC
Moisture Sensitivity Level (MSL)
1 (Unlimited)
Number Of Channels
1
Number Of Elements
1
Turn On Delay Time
2.3 ns
Drain To Source Voltage (Vdss)
50V
Rise Time
1.9ns
Turn-Off Delay Time
6.7 ns
Rds On Max
3.5 Ω
Drain To Source Resistance
1.17Ohm
Common questions
Product FAQ
Quick answers for buyers reviewing BSS138W, stock, documentation, and sourcing steps.
What is BSS138W?
BSS138W is a Transistors - FETs, MOSFETs - Single component from ON Semiconductor. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
What package and description are listed for BSS138W?
BSS138W is listed with package reference SOT323. The current product description is MOSFET N-CH 50V 0.21A SOT323, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is BSS138W available in stock?
This page currently shows 65896 units in stock and 54842 units available for BSS138W. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for BSS138W?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for BSS138W by ON Semiconductor. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for BSS138W?
Yes. This page links to the datasheet for BSS138W by ON Semiconductor, so engineers and buyers can review package, ratings, and application details before purchase.
How should buyers verify BSS138W before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for BSS138W before approving the order.
Transistors - FETs, MOSFETs - Single
Recommended Products
Explore more parts from the same subcategory to compare fit, stock, and sourcing options.
More sourcing insights
Articles
Explore related articles around BSS138W, Transistors - FETs, MOSFETs - Single, and adjacent sourcing decisions so buyers can compare context before moving from evaluation to RFQ.
Jul 17, 2026
FPGA Supply 2026: A Buyer's Framework for AMD Xilinx, Intel Altera, Microchip, and Lattice SourcingA production-BOM FPGA sourcing guide for 2026 covering lifecycle commitment, redesign cost, and qualification boundaries across AMD Xilinx, Intel Altera, Microchip PolarFire, and Lattice families.
FPGAAMD XilinxIntel Altera
Jul 11, 2026
2026 Q3 Wide-Bandgap Power Read: Where SiC Is Scaling, Where GaN Is Winning, and Why Silicon Still MattersA Q3 2026 read on SiC, GaN, and silicon power semiconductors: where wide-bandgap devices are winning now, where silicon still holds, and what engineers and sourcing teams should watch.
wide-bandgap semiconductorsSiCGaN
Jul 8, 2026
Texas Instruments Lead Time and Price Pressure in 2026: What Analog and Power Buyers Should Do NowA buyer-facing framework for Texas Instruments analog and power IC exposure in 2026, covering what is confirmed, where price and lead-time pressure is most likely to show up, and which actions sourcing teams should take first.
Texas Instrumentsanalog ICpower management IC