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Technical Data Sheet
PartsTable / LIGHT EMITTING DIODE / 0C120
0C120 ✓ 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 COUPLER,OPTOELECTRONIC is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: TRANSISTOR PHOTO OPTICALLY COUPLED; 35.0 V; 50.0 NA DC; 0.206 IN. MAX LG; 0.220 IN.

MAX DIA V. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5980-00-543-2143, 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
0C120
NSN: 5980-00-543-2143
FSC: 5980 — LIGHT EMITTING DIODE
CAGE: 01295 — TEXAS INSTRUMENTS INCORPORATED (USA)
SPECIFICATIONS
general_characteristics_item_descriptionTRANSISTOR PHOTO OPTICALLY COUPLED; 35.0 V; 50.0 NA DC; 0.206 IN. MAX LG; 0.220 IN. MAX DIA V
NSN5980-00-543-2143
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLER,OPTOELECTRONIC TITLE COMPONENT PN 0C120 MFR COUPLER,OPTOELECTRONIC
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: TRANSISTOR PHOTO OPTICALLY COUPLED; 35.0 V; 50.0 NA DC; 0.206 IN. MAX LG; 0.220 IN. MAX DIA V
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONTRANSISTOR PHOTO OPTICALLY COUPLED; 35.0 V; 50.0 NA DC; 0.206 IN. MAX LG; 0.220 IN. MAX DIA V
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
20-10-4000Interchangeable
interchangeable cross-reference
interchangeable
250000Interchangeable
interchangeable cross-reference
interchangeable
T1L108Interchangeable
interchangeable cross-reference
interchangeable
0CI220-4Interchangeable
Same NIIN cross-reference
interchangeable
TIL108Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0C120?
0C120 is a COUPLER,OPTOELECTRONIC.
What parts can replace 0C120?
There are 5 known substitutes for 0C120: 20-10-4000, 250000, T1L108 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0C120?
0C120 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5980-00-543-2143. 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