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1N749 — Axial diode package (representative)
Axial diode
Representative of package type
NJS

1N749

Zener Diode · DO-35 · Discrete Semiconductor
In demand
Data last refreshed Jul 29, 2026
Manufacturer
NJS
Mfr Part #
1N749
Category
Zener Diode
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels24
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Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Vz4.3 V
Pd400 mW
Physical & Thermal
Package / CaseDO-35
Mounting TypeThrough Hole
Classification & Lifecycle
CategoryZener Diode
TypeDiscrete Semiconductor

4.3 V Zener diode, 400 mW

Availability & Sourcing

24 sources
SourceMfrQtyDate CodeConditionStatus
Live NJS 8429 — — Live RFQ
Live UNB 8134 — — Live RFQ
Live ITT 7214 — — Live RFQ
Live FSC 5366 — — Live RFQ
Live MOT 4900 — — Live RFQ
Live NATIONAL 1820 — — Live RFQ
Live MOTOROLA NA NAE TI 1226 548 NA — Live RFQ
Live MOTOROLA SEMICONDUCTOR PR 813 90+ — Live RFQ
Live IR 762 — — Live RFQ
Live FAIRCHI 558 — — Live RFQ
Live HORIZON 380 — — Live RFQ
Live WW 300 — — Live RFQ
Live IR 253 — — Live RFQ
Live T 221 — — Live RFQ
Live — 95 77 — Live RFQ
Live U 95 — — Live RFQ
Market NJS 8429 — — Available RFQ
Market MOT 4900 — — Available RFQ
Market NATIONAL 1820 — — Available RFQ
Market MOTOROLA NA NAE 1226 548 NA — Available RFQ
Market MOTOROLA SEMICO 813 90+ — Available RFQ
Market FAIRCHI 558 — — Available RFQ
Market NJS 95 77 — Available RFQ
Market U 95 — — Available RFQ

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

Part Activity

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Recent search and sourcing activity for 1N749.

Engineering FAQ

What are the key specifications of 1N749?
Vz: 4.3 V; Pd: 400 mW.
What package is 1N749 supplied in?
1N749 is supplied in the DO-35 package, through hole.
Can ZDI source 1N749 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

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