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BC550C — TO-92 package (representative)
TO-92
Representative of package type
ONS

BC550C

Bipolar Transistor · TO-92 · Discrete Semiconductor
Part Status: Obsolete In demand
Data last refreshed Jun 18, 2026
Manufacturer
ONS
Mfr Part #
BC550C
Series
BC550
Category
Bipolar Transistor
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$0.4
Last transacted2008-03-28
Market range$0.4
Sourcing channels26
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Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
PolarityNPN
Vceo45 V
Ic100 mA
Hfe420-800
Physical & Thermal
Package / CaseTO-92
Mounting TypeThrough Hole
SeriesBC550
Classification & Lifecycle
CategoryBipolar Transistor
TypeDiscrete Semiconductor
Part StatusObsolete

NPN low-noise audio transistor, Vceo 45 V, Ic 100 mA

Availability & Sourcing

26 sources
SourceMfrQtyDate CodeConditionStatus
Live ONS 25400 — — Live RFQ
Live SGS 17820 — — Live RFQ
Live NXP SEMICO 8156 08+/CN — Live RFQ
Live AMS MOTOROLA 7957 901+ — Live RFQ
Live PHILIPS 5900 99+ — Live RFQ
Live NJS 5330 — — Live RFQ
Live PHI 1076 — — Live RFQ
Live FAIRCHILD 781 10+ — Live RFQ
Live FSC 411 — — Live RFQ
Live MICRO ELE. 276 — — Live RFQ
Live MOT 155 — — Live RFQ
Live Philips 75 — — Live RFQ
Live ON 1500 — — Live RFQ
Live ONSEMI 687 — — Live RFQ
Market ONS 25400 — — Available RFQ
Market SGS 17820 — — Available RFQ
Market NXP SEMICO 8156 08+/CN — Available RFQ
Market AMS MOTOROLA 7957 901+ — Available RFQ
Market PHILIPS 5900 99+ — Available RFQ
Market NJS 5330 — — Available RFQ
Market FAIRCHILD 781 10+ — Available RFQ
Market FSC 411 — — Available RFQ
Market MICRO ELE. 276 — — Available RFQ
Market Philips 75 — — Available RFQ
Market ON 1500 — — Available RFQ
Market ONSEMI 687 — — Available RFQ

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

Price History & Market Reference

Market Price Range

High$0.4
Low$0.4
Last$0.4
Price as of2008-03-28

ZDI Transaction

Last ZDI price$0.4
As of2008-03-28
Active offers26

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

Part Activity

recent searches, RFQs & offers
BC550C viewed on the web · Web User
BC550C viewed on the web · Web User
BC550C viewed on the web · Web User
BC550C viewed on the web · Web User
BC550C viewed on the web · Web User
BC550C viewed on the web · Web User
BC550C viewed on the web · Web User
BC550C viewed on the web · Web User

Recent search and sourcing activity for BC550C.

Engineering FAQ

BC550C 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 BC550C?
Polarity: NPN; Vceo: 45 V; Ic: 100 mA; Hfe: 420-800.
What package is BC550C supplied in?
BC550C is supplied in the TO-92 package, through hole.
Can ZDI source BC550C 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

BC550C 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.

Related Parts

from ONS

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