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KSC945YBU

ACTIVE
Fairchild Semiconductor

Bipolar (BJT) Transistor NPN 50 V 150 mA 300MHz 250 mW Through Hole TO-92-3

In full production. No end-of-life notice on file.

KSC945YBU is a Bipolar (BJT) Transistor NPN 50 V 150 mA 300MHz 250 mW Through Hole TO-9 from Fairchild Semiconductor. 1 authorized distributor quotes it on TracedParts, from RM 0.24 at quantity 1, with 1,235,108 units in stock for immediate despatch. Figures come from the distributors' own APIs, pulled in the catalogue snapshot of 2026-11-06, and are indicative rather than a binding quote.

RoHS COMPLIANTREACH TO-226-3, TO-92-3 (TO-226AA) THROUGH HOLE
BEST PRICE @1
RM 0.24
DigiKey · authorized
TOTAL STOCK
1,235,108
1 source
SHORTEST LEAD
stock
ships from warehouse
AUTHORIZED
1 / 1
tier 1 sources

Who has KSC945YBU in stock, and what does it cost?

1 authorized distributor · pulled from their APIs in the catalogue snapshot of 2026-11-06
QTY pcs
DISTRIBUTOR
STOCK
MOQ
PRICE BREAKS · MYR
LEAD
@250 PCS
TIER 1 - AUTHORIZED DISTRIBUTORfranchised - full warranty - paperwork QA will accept
AUTH
1,235,108
4,771
4k+0.2425
stock
ex-warehouse
-
below MOQ 4,771
Buy ↗
What 250 pcs actually costs landed in Malaysia, duty and SST included: RM 121.96 RM 0.4878 per unit, DDP · estimate Open estimator →

What are the specifications of KSC945YBU?

22 parameters▾
Device specification
Transistor TypeNPN
Current - Collector (Ic) (Max)150 mA
Voltage - Collector Emitter Breakdown (Max)50 V
Vce Saturation (Max) @ Ib, Ic300mV @ 10mA, 100mA
Current - Collector Cutoff (Max)100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce120 @ 1mA, 6V
Power - Max250 mW
Frequency - Transition300MHz
Operating Temperature150°C (TJ)
Mounting TypeThrough Hole
Package / CaseTO-226-3, TO-92-3 (TO-226AA)
Supplier Device PackageTO-92-3
Ordering & compliance
ManufacturerFairchild Semiconductor
CategorySingle Bipolar Transistors
PackageTO-226-3, TO-92-3 (TO-226AA)
MountingThrough hole
LifecycleACTIVE
RoHSCompliant
Moisture levelNot applicable (through hole)
PackagingTube / bulk
Country of origin
HS code

Where can I download the KSC945YBU datasheet?

link supplied by DigiKey▾
PDF
KSC945YBU datasheet
link supplied by DigiKey · Fairchild Semiconductor · English
Open datasheet ↗

This is the datasheet link the distributor returned with the part record. We pass it through as they gave it, and we have not opened it - there are more than 300,000 of these and we verify only the ones we curate by hand. If it does not resolve, that is the distributor’s record, not the part.

What does KSC945YBU cost landed in Malaysia?

Malaysia · DDP · HS ▾
Goods
Freight · express 2 d
Import duty · 0 % (ITA-exempt)
Sales & service tax · 6 %
Customs clearance
Landed total

Estimate only. The correct HS classification for your import is your responsibility - see terms of service.

Is there a CAD symbol and footprint for KSC945YBU?

4 downloads▾
SCHEMATIC SYMBOL · .libPCB FOOTPRINT · .kicad_mod 3D MODEL · .stepSPICE · .mod

What can I use instead of KSC945YBU?

3 in single bipolar transistors▾
BC818K40E6327HTSA1
Infineon Technologies
Bipolar (BJT) Transistor NPN 25 V 500 mA 170MHz 500 …
1,261
RM 0.24
PMST5088,115
Nexperia USA Inc.
Bipolar (BJT) Transistor NPN 30 V 100 mA 100MHz 200 …
1,261
RM 0.24
KSP2907ABU
Fairchild Semiconductor
Bipolar (BJT) Transistor PNP 60 V 600 mA 200MHz 625 …
1,261
RM 0.24

Nearest peers by price within the same category. Confirm the parameters before you substitute - these are not guaranteed drop-in replacements.

Which parts are similar to KSC945YBU?

8 parts▾
BC848B,2352SC2812N6-CPA-TB-E2SC1623A-T1B-AT2SA812A-T1B-AT2SA1179N6-CPA-TB-EKSA992FBTAS85502SC2001-A

Common questions about KSC945YBU

7 questions▾
Is KSC945YBU in stock?
Yes. 1,235,108 units are in stock across 1 authorized distributor (DigiKey), as of the catalogue snapshot of 2026-11-06.
How much does KSC945YBU cost?
RM 0.2425 is the lowest unit price on this page, from DigiKey. Prices fall as quantity rises; the full price break ladder is in the quotes table. Figures come from the distributor API and are indicative, not a binding quote.
Who supplies KSC945YBU?
DigiKey. It is authorized, franchised distributor quoting through its own API. TracedParts carries no broker or open-market listings.
How old are these prices?
The catalogue is re-pulled from the distributors' APIs once a day, and the line under the Quotes heading says which pull the figures on this page came from. Prices and stock can move between pulls, so treat them as indicative and confirm on the distributor's site before you order.
Who quoted these prices?
Every row on the site comes from an authorized, franchised distributor through its own API: DigiKey, Mouser or element14. There are no broker or open-market listings on TracedParts. If a source ever changes, the row will say so.
Why do you show the source before the price?
Because who sold it decides what happens at incoming inspection, and a table sorted by price alone hides that. Rows are grouped by the distributor's status first and ordered by unit price inside the group.
Why are prices in ringgit?
Distributors quote in US dollars. TracedParts converts to MYR at a fixed reference rate that is printed on the page, not a live FX feed, so the ringgit figure is a sourcing estimate rather than the amount you will be billed.