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 - Bipolar (BJT) - SingleON Semiconductor Transistors - Bipolar (BJT) - Single
KSP42BU Transistors - Bipolar (BJT) - Single by ON Semiconductor
KSP42BU is a Transistors - Bipolar (BJT) - 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 - Bipolar (BJT) - Single product path. Known package information currently points to TO-92 under the ON Semiconductor brand listing. TRANS NPN 300V 0.5A TO-92. TrustCompo combines the available model, brand, hierarchy, and specification details around KSP42BU 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 - Bipolar (BJT) - SingleDescription
TRANS NPN 300V 0.5A TO-92
key Attributes
-
Datasheet
View KSP42BU DatasheetTechnical document
Open The Official Datasheet
Review the latest datasheet for KSP42BU 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
TRANS NPN 300V 0.5A TO-92
Fast scan
Popular Specs Surfaced First
Product Parameter
Terminal Finish
Tin (Sn)
Product Parameter
Number Of Elements
1
Product Parameter
Transistor Type
NPN
Product Attribute
Part Status
Active
Product Attribute
Mounting Type
Through Hole
Product Attribute
REACH Status
REACH Unaffected
Terminal Finish
Tin (Sn)
Number Of Elements
1
Transistor Type
NPN
Part Status
Active
Mounting Type
Through Hole
REACH Status
REACH Unaffected
ECCN
EAR99
Lead Free
Lead Free
Packaging
Bulk
Factory Lead Time
6 Weeks
Published
2002
Current Rating
500mA
Frequency
50MHz
Element Configuration
Single
Manufacturer
ON Semiconductor
Categories
Discrete Semiconductor Products
Transistor Element Material
SILICON
Subcategory
Other Transistors
Max Power Dissipation
625mW
Lifecycle Status
ACTIVE (Last Updated: 16 hours ago)
Radiation Hardening
No
Pbfree Code
yes
Mount
Through Hole
Number Of Pins
3
Terminal Position
BOTTOM
Number Of Terminations
3
Width
3.86mm
Gain Bandwidth Product
50MHz
Power Dissipation
625mW
Voltage - Rated DC
300V
Max Collector Current
500mA
Sub-Categories
Transistors - Bipolar (BJT) - Single
Transition Frequency
50MHz
Operating Temperature
150°C TJ
Transistor Application
AMPLIFIER
Polarity/Channel Type
NPN
Current - Collector Cutoff (Max)
100nA ICBO
Package / Case
TO-226-3, TO-92-3 (TO-226AA)
Emitter Base Voltage (VEBO)
6V
Collector Emitter Saturation Voltage
500mV
HFE Min
40
Collector Emitter Breakdown Voltage
300V
Collector Emitter Voltage (VCEO)
300V
Collector Base Voltage (VCBO)
300V
Vce Saturation (Max) @ Ib, Ic
500mV @ 2mA, 20mA
Weight
179mg
DC Current Gain (HFE) (Min) @ Ic, Vce
40 @ 30mA 10V
Height
4.58mm
Length
4.58mm
Base Part Number
KSP42
Manufacturer'S Part No.
KSP42BU
JESD-609 Code
e3
RoHS Status
ROHS3 Compliant
HTSUS
8541.21.0095
ECCN Code
EAR99
Moisture Sensitivity Level (MSL)
Not Applicable
Common questions
Product FAQ
Quick answers for buyers reviewing KSP42BU, stock, documentation, and sourcing steps.
What is KSP42BU?
KSP42BU is a Transistors - Bipolar (BJT) - 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 KSP42BU?
KSP42BU is listed with package reference TO-92. The current product description is TRANS NPN 300V 0.5A TO-92, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is KSP42BU available in stock?
This page currently shows 82355 units in stock and 28957 units available for KSP42BU. 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 KSP42BU?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for KSP42BU by ON Semiconductor. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for KSP42BU?
Yes. This page links to the datasheet for KSP42BU by ON Semiconductor, so engineers and buyers can review package, ratings, and application details before purchase.
How should buyers verify KSP42BU before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for KSP42BU before approving the order.
Transistors - Bipolar (BJT) - 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 KSP42BU, Transistors - Bipolar (BJT) - 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