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LM317AKC — TO-220 package (representative)
TO-220
Representative of package type
National Semiconductor Corp

LM317AKC

Voltage Regulator · TO-220 · Analog
Part Status: Obsolete
Data last refreshed Jul 31, 2026
Manufacturer
National Semiconductor Corp
Mfr Part #
LM317AKC
Series
LM317
Category
Voltage Regulator
Datasheet
View datasheet ↗
Availability & Pricing
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Product Attributes

Electrical & Parametric
Output Voltage1.2V to 37V
Max Input Voltage40V
Output Current1.5A
Physical & Thermal
Package / CaseTO-220
Mounting TypeThrough Hole
SeriesLM317
Operating Temperature0°C ~ 125°C
Classification & Lifecycle
CategoryVoltage Regulator
TypeAnalog
Part StatusObsolete

Adjustable positive linear voltage regulator, 1.2V-37V, 1.5A

Part Activity

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LM317AKC viewed on the web · Web User
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LM317AKC viewed on the web · Web User
LM317AKC viewed on the web · Web User
Specifications reviewed & updated · ZDI

Recent search and sourcing activity for LM317AKC.

Engineering FAQ

LM317AKC 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 LM317AKC?
Output Voltage: 1.2V to 37V; Max Input Voltage: 40V; Output Current: 1.5A.
What package is LM317AKC supplied in?
LM317AKC is supplied in the TO-220 package, through hole, rated 0°C ~ 125°C.
Can ZDI source LM317AKC 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

LM317AKC 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.

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