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UNB

2N2151

Bipolar Transistor · TO-3 · Discrete Semiconductor
Part Status: Obsolete In demand
Data last refreshed Jul 22, 2026
Manufacturer
UNB
Mfr Part #
2N2151
Category
Bipolar Transistor
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels31
Request a Quote → Check Live Availability

Live pricing on request · most quotes same business day

Specifications

Physical & Thermal
Package / CaseTO-3
Mounting TypeThrough Hole
Classification & Lifecycle
CategoryBipolar Transistor
TypeDiscrete Semiconductor
Part StatusObsolete

PNP Germanium Power Transistor

Availability & Sourcing

31 sources
SourceMfrQtyDate CodeConditionStatus
Live UNB 2165 — — Live RFQ
Live TI 77 — — Live RFQ
Live NJS 33 — — Live RFQ
Live SIGNETICS 33 1980 — Live RFQ
Live TI 28 6713 — Live RFQ
Live SOLID 18 — — Live RFQ
Live — 11 — — Live RFQ
Live TI 9 67+ — Live RFQ
Live UNITRODE 7 7700 — Live RFQ
Live NSC 7 — — Live RFQ
Live General Electric (GE) 5 8612 — Live RFQ
Live WESTINGHOUSE 5 — — Live RFQ
Live SSPI 4 — — Live RFQ
Live TI 3 7733 — Live RFQ
Live UNI 3 — — Live RFQ
Live TI 3 6946 — Live RFQ
Market UNB 2165 — — Available RFQ
Market TI 77 — — Available RFQ
Market SIGNETICS 33 1980 — Available RFQ
Market TI 28 6713 — Available RFQ
Market UNB 11 — — Available RFQ
Market TI 9 67+ — Available RFQ
Market UNITRODE 7 7700 — Available RFQ
Market General Electri 5 8612 — Available RFQ
Market TI 3 7733 — Available RFQ
Market TI 3 6946 — Available RFQ
Market TI 3 — — Available RFQ
Market MIL 2 — — Available RFQ
Market TI 1 — — Available RFQ
Market TRAN 2 — — Available RFQ
Market General Electri 5 198612 — 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
2N2151 viewed on the web · Web User
2N2151 viewed on the web · Web User
2N2151 viewed on the web · Web User
2N2151 viewed on the web · Web User
2N2151 viewed on the web · Web User
2N2151 viewed on the web · Web User
2N2151 viewed on the web · Web User
2N2151 viewed on the web · Web User

Recent search and sourcing activity for 2N2151.

Engineering FAQ

2N2151 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 package is 2N2151 supplied in?
2N2151 is supplied in the TO-3 package, through hole.
Can ZDI source 2N2151 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

2N2151 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

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