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Technical Data Sheet
PartsTable / COMPONENT / LM309K
LM309K ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The MICROCIRCUIT,LINEAR is a the manufacturer industrial component. Key specifications include body_width: 1.050 INCHES MAXIMUM IN, body_height: 0.250 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN, body_length: 1.573 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED AND THERMAL OVERLOAD PROTECTION AND W/RESISTOR AND POSITIVE OUTPUTS, precious_material: GOLD, inclosure_material: METAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-00-305-4480, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
LM309K
NSN: 5962-00-305-4480
FSC: 5962
CAGE: 27014 — NATIONAL SEMICONDUCTOR CORPORATION (USA)
SPECIFICATIONS
body_width1.050 INCHES MAXIMUM IN
body_height0.250 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
body_length1.573 INCHES MAXIMUM IN
special_featuresITEM MUST COMPLY WITH REQUIREMENTS OF DESC PRODUCTION STANDARD N0. L01345: FOR NAVY NUCLEAR PROPULSION PLANT PRODUCTS ONLY
features_providedHERMETICALLY SEALED AND THERMAL OVERLOAD PROTECTION AND W/RESISTOR AND POSITIVE OUTPUTS
precious_materialGOLD
inclosure_materialMETAL
storage_temp_range-65.0 TO 150.0 CELSIUS DEGC
test_data_document14933-L01345 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
operating_temp_range+0.0 TO 125.0 CELSIUS DEGC
body_outside_diameter1.050 INCHES MINIMUM IN
input_circuit_pattern1 INPUT
NSN5962-00-305-4480
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,LINEAR TITLE COMPONENT PN LM309K MFR MICROCIRCUIT,LINEAR
KEY FEATURES
•
CASE OUTLINE SOURCE AND DESIGNATOR: T0-3 JOINT ELECTRON DEVICE ENGINEERING COUNCIL
•
BODY OUTSIDE DIAMETER: 1.050 INCHES MINIMUM IN
•
OPERATING TEMP RANGE: +0.0 TO 125.0 CELSIUS DEGC
•
BODY LENGTH: 1.573 INCHES MAXIMUM IN
•
FEATURES PROVIDED: HERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS
•
DESIGN FUNCTION AND QUANTITY: 1 REGULATOR, VOLTAGE
•
PRECIOUS MATERIAL AND LOCATION: TERMINAL SURFACE GOLD
•
STORAGE TEMP RANGE: -65.0 TO 150.0 CELSIUS DEGC
TECHNICAL CHARACTERISTICS (FLIS)
CASE OUTLINE SOURCE AND DESIGNATORT0-3 JOINT ELECTRON DEVICE ENGINEERING COUNCIL
BODY OUTSIDE DIAMETER1.050 INCHES MINIMUM IN
OPERATING TEMP RANGE+0.0 TO 125.0 CELSIUS DEGC
BODY LENGTH1.573 INCHES MAXIMUM IN
FEATURES PROVIDEDHERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS
DESIGN FUNCTION AND QUANTITY1 REGULATOR, VOLTAGE
PRECIOUS MATERIAL AND LOCATIONTERMINAL SURFACE GOLD
STORAGE TEMP RANGE-65.0 TO 150.0 CELSIUS DEGC
PRECIOUS MATERIALGOLD
TERMINAL SURFACE TREATMENTGOLD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
LM309KInterchangeable
interchangeable cross-reference
interchangeable
LM109KSTEELInterchangeable
interchangeable cross-reference
interchangeable
UA309KMQBInterchangeable
interchangeable cross-reference
interchangeable
36000-7Interchangeable
interchangeable cross-reference
interchangeable
1820-0430Interchangeable
interchangeable cross-reference
interchangeable
588291-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LM309K?
LM309K is a MICROCIRCUIT,LINEAR.
What parts can replace LM309K?
There are 13 known substitutes for LM309K: LM309K, LM109KSTEEL, UA309KMQB and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LM309K?
LM309K is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-00-305-4480. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026