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UNB

1N4551B

Zener Diode · DO-5 · Discrete Semiconductor
In demand
Manufacturer
UNB
Mfr Part #
1N4551B
Category
Zener Diode
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels11
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Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Vz5.1 V
Power50 W
Physical & Thermal
Package / CaseDO-5
Mounting TypeChassis Mount
Classification & Lifecycle
CategoryZener Diode
TypeDiscrete Semiconductor

50 W, 5.1 V Zener diode

Availability & Sourcing

11 source rows · masked
SourceMfrQtyDate CodeConditionStatus
Live UNB 2472 Live · fresh RFQ
Live WW 36 Live · fresh RFQ
Live RF 14 Live · fresh RFQ
Live MOT ×2 channels 4 Live · fresh RFQ
Live DICKSON ×2 channels 4 Live · fresh RFQ
Live SOL 3 Live · fresh RFQ
Live MOTOROLA ×2 channels 2 Live · fresh RFQ
Live NJS 1 Live · fresh RFQ
Market UNB 2472 Available RFQ
Market MOT 4 Available RFQ
Market DICKSON ×2 channels 4 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.

Part Activity

recent searches, RFQs & offers
1N4551B searched via the web · Web User
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1N4551B searched via the web · Web User
1N4551B searched via the web · Web User
Specifications reviewed & updated · ZDI

Live search & sourcing activity for 1N4551B — real inquiries only.

Engineering FAQ

answers from this part's real data
What are the key specifications of 1N4551B?
Vz: 5.1 V; Power: 50 W.
What package is 1N4551B supplied in?
1N4551B is supplied in the DO-5 package, chassis mount.
Can ZDI source 1N4551B 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

Related Parts

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