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LM431ACM — SOIC-8 package (representative)
SOIC-8
Representative of package type
National Semiconductor Corp

LM431ACM

Shunt Voltage Reference · SOIC-8 · Analog
In stock at ZDI Part Status: Obsolete
Data last refreshed Jun 19, 2026
Manufacturer
National Semiconductor Corp
Mfr Part #
LM431ACM
Series
LM431
Category
Shunt Voltage Reference
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Stock465 pcs
Date Code9508
PackagingBags
Unit PriceRequest a Quote
Sourcing channels3
Request a Quote → Check Live Availability

Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Reference Voltage2.495 V
Tolerance0.5 %
Cathode Voltage Max37 V
Physical & Thermal
Package / CaseSOIC-8
Mounting TypeSurface Mount
SeriesLM431
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryShunt Voltage Reference
TypeAnalog
Part StatusObsolete

Adjustable precision shunt regulator, 2.495V ref, 0.5% tol, 37V max

Availability & Sourcing

4 source rows · masked
SourceMfrQtyDate CodeConditionStatus
ZDI Stock National Semiconductor Corp 465 9508 New In Stock RFQ
Market NS 2500 Available RFQ
Market NS 100 Available RFQ
Market NSC 250 201012 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
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LM431ACM searched via the web · Web User
LM431ACM searched via the web · Web User
LM431ACM searched via the web · Web User
LM431ACM searched via the web · Web User
LM431ACM searched via the web · Web User
LM431ACM searched via the web · Web User
LM431ACM searched via the web · Web User

Live search & sourcing activity for LM431ACM — real inquiries only.

Engineering FAQ

answers from this part's real data
LM431ACM 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 quantity and packaging is LM431ACM in ZDI stock?
ZDI holds 465 pcs, packaged as Bags, date code(s) 9508. Request a quote for confirmed quantity, lead time, and pricing.
What are the key specifications of LM431ACM?
Reference Voltage: 2.495 V; Tolerance: 0.5 %; Cathode Voltage Max: 37 V.
What package is LM431ACM supplied in?
LM431ACM is supplied in the SOIC-8 package, surface mount, rated 0°C ~ 70°C.
Can ZDI source LM431ACM 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

LM431ACM 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 National Semiconductor Corp

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