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2N4400BU — TO-92 package (representative)
TO-92
Representative of package type
FAIRCHILD SEMICONDUCTOR C

2N4400BU

NPN Bipolar Transistor · TO-92 · Discrete Semiconductor
In demand
Data last refreshed Jun 18, 2026
Manufacturer
FAIRCHILD SEMICONDUCTOR C
Mfr Part #
2N4400BU
Category
NPN Bipolar Transistor
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$0.25
Last transacted2010-09-14
Market range$0.25
Sourcing channels21
Request a Quote → Check Live Availability

Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Vceo40 V
Ic600 mA
Physical & Thermal
Package / CaseTO-92
Mounting TypeThrough Hole
Classification & Lifecycle
CategoryNPN Bipolar Transistor
TypeDiscrete Semiconductor

NPN silicon transistor, 40 V VCEO, 600 mA IC

Availability & Sourcing

21 source rows · masked
SourceMfrQtyDate CodeConditionStatus
Live FAIRCHILD SEMICONDUCTOR C 1527 0401 Live · fresh RFQ
Live 1225 Live · fresh RFQ
Live FSC 1000 04+ Live · fresh RFQ
Live FSC 750 Live · fresh RFQ
Live FC 700 Live · fresh RFQ
Live FSC 360 2003 Live · fresh RFQ
Live FSC 104 Live · fresh RFQ
Live FSC 100 2 Live · fresh RFQ
Live FSC 19 04 Live · fresh RFQ
Live FSC 17 200436 Live · fresh RFQ
Live 7 Live · fresh RFQ
Market FAIRCHILD SEMIC 1527 0401 Available RFQ
Market 1225 Available RFQ
Market FSC 1000 04+ Available RFQ
Market FSC 750 Available RFQ
Market FC 700 Available RFQ
Market FSC 360 2003 Available RFQ
Market FSC 104 Available RFQ
Market FSC 100 2 Available RFQ
Market FSC 19 04 Available RFQ
Market FSC 17 200436 Available RFQ

ZDI Stock — held in our warehouse · Market — recent offers, sourced on request · Live — fresh from the broker network. Supplier identity and cost are never shown.

Price History & Market Reference

Market Price Range

High$0.25
Low$0.25
Last$0.25
Price as of2010-09-14

ZDI Transaction

Last ZDI price$0.25
As of2010-09-14
Active offers21

Pricing reflects ZDI's transaction and market-reference data. Firm pricing confirmed per RFQ against current availability.

Part Activity

recent searches, RFQs & offers
2N4400BU viewed on the web · Web User
2N4400BU searched via the web · Web User
2N4400BU searched via the web · Web User
2N4400BU searched via the web · Web User
2N4400BU searched via the web · Web User
2N4400BU searched via the web · Web User
2N4400BU searched via the web · Web User
2N4400BU searched via the web · Web User

Live search & sourcing activity for 2N4400BU — real inquiries only.

Engineering FAQ

answers from this part's real data
What are the key specifications of 2N4400BU?
Vceo: 40 V; Ic: 600 mA.
What package is 2N4400BU supplied in?
2N4400BU is supplied in the TO-92 package, through hole.
Can ZDI source 2N4400BU beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
Source-country supplier analysis, rating & review
Incoming inspection, RoHS verification, bake, full lot traceability
ESD-controlled handling · authentic parts guaranteed

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