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KST3904-MTF — SOT-23 (3-lead) package (representative)
SOT-23 (3-lead)
Representative of package type
Samsung Electronics Co Ltd

KST3904-MTF

Bipolar Transistor · SOT-23 · Discrete Semiconductor
Part Status: Obsolete In demand
Data last refreshed Jul 28, 2026
Manufacturer
Samsung Electronics Co Ltd
Mfr Part #
KST3904-MTF
Series
KST3904
Category
Bipolar Transistor
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels15
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Product Attributes

Electrical & Parametric
Vceo40V
Ic200mA
Hfe100 min
Physical & Thermal
Package / CaseSOT-23
Mounting TypeSurface Mount
SeriesKST3904
Operating Temperature-55°C ~ 150°C
Classification & Lifecycle
CategoryBipolar Transistor
TypeDiscrete Semiconductor
Part StatusObsolete

NPN Silicon Bipolar Transistor, 40V, 200mA

Availability & Sourcing

15 sources
SourceMfrQtyDate CodeConditionStatus
Market ONSEMI 632730 — — Available RFQ
Market FAIRCHILD SEMIC 25298 — — Available RFQ
Market FSC 6000 96 — Available RFQ
Market SAMSUNG SEMICON 3757 — — Available RFQ
Market FSC 3000 14 — Available RFQ
Market ARGOSY 3000 — — Available RFQ
Market Samsung 3000 — — Available RFQ
Market ONSEMI 2755 — — Available RFQ
Market — 2740 1995+ — Available RFQ
Market ONSEMI 2351 96' — Available RFQ
Market Samsung 1524 9651 — Available RFQ
Market SAMSUNG 1156 — — Available RFQ
Market FAIRCHILD 274 — — Available RFQ
Market FAIRCHILD 160 — — Available RFQ
Market FSC 27 — — Available RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Part Activity

recent searches, RFQs & offers
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KST3904-MTF viewed on the web · Web User
KST3904-MTF viewed on the web · Web User
KST3904-MTF viewed on the web · Web User
KST3904-MTF viewed on the web · Web User
KST3904-MTF viewed on the web · Web User
KST3904-MTF viewed on the web · Web User
KST3904-MTF viewed on the web · Web User

Recent search and sourcing activity for KST3904-MTF.

Engineering FAQ

KST3904-MTF is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What are the key specifications of KST3904-MTF?
Vceo: 40V; Ic: 200mA; Hfe: 100 min.
What package is KST3904-MTF supplied in?
KST3904-MTF is supplied in the SOT-23 package, surface mount, rated -55°C ~ 150°C.
Can ZDI source KST3904-MTF 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

KST3904-MTF is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

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