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PartsTable / COMPONENT / 121-0000-256
121-0000-256 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include body_width: 0.250 INCHES NOMINAL IN, body_length: 0.750 INCHES NOMINAL IN, features_provided: BURN IN, MIL-STD-883, CLASS B AND HERMETICALLY SEALED AND MONOLITHIC, output_logic_form: COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC, inclosure_material: CERAMIC OR GLASS OR METAL, storage_temp_range: -65.0 TO 175.0 CELSIUS DEGC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-138-1653, 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
121-0000-256
NSN: 5962-01-138-1653
FSC: 5962
CAGE: 14304 — L3HARRIS TECHNOLOGIES, INC. DBA HARRIS CORP DIV HARRIS DEFENSE COMMUNICATIONS (USA)
SPECIFICATIONS
body_width0.250 INCHES NOMINAL IN
body_length0.750 INCHES NOMINAL IN
features_providedBURN IN, MIL-STD-883, CLASS B AND HERMETICALLY SEALED AND MONOLITHIC
output_logic_formCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
inclosure_materialCERAMIC OR GLASS OR METAL
storage_temp_range-65.0 TO 175.0 CELSIUS DEGC
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
input_circuit_pattern4 INPUT
inclosure_configurationDUAL-IN-LINE
specification/standard_data81349-MIL-38510/58 GOVERNMENT SPECIFICATION
design_function_and_quantity4 SWITCH, BILATERAL
maximum_power_dissipation_rating200.0 MILLIWATTS
NSN5962-01-138-1653
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN 121-0000-256 MFR MICROCIRCUIT,DIGITAL
KEY FEATURES
•
CASE OUTLINE SOURCE AND DESIGNATOR: D-1 MIL-M-38510
•
SPECIFICATION/STANDARD DATA: 81349-MIL-38510/58 GOVERNMENT SPECIFICATION
•
INCLOSURE CONFIGURATION: DUAL-IN-LINE
•
STORAGE TEMP RANGE: -65.0 TO 175.0 CELSIUS DEGC
•
TEST DATA DOCUMENT: 81349-MIL-M-38510 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
•
MAXIMUM POWER DISSIPATION RATING: 200.0 MILLIWATTS
•
INPUT CIRCUIT PATTERN: 4 INPUT
•
OUTPUT LOGIC FORM: COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
TECHNICAL CHARACTERISTICS (FLIS)
CASE OUTLINE SOURCE AND DESIGNATORD-1 MIL-M-38510
SPECIFICATION/STANDARD DATA81349-MIL-38510/58 GOVERNMENT SPECIFICATION
INCLOSURE CONFIGURATIONDUAL-IN-LINE
STORAGE TEMP RANGE-65.0 TO 175.0 CELSIUS DEGC
TEST DATA DOCUMENT81349-MIL-M-38510 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MAXIMUM POWER DISSIPATION RATING200.0 MILLIWATTS
INPUT CIRCUIT PATTERN4 INPUT
OUTPUT LOGIC FORMCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
BODY WIDTH0.250 INCHES NOMINAL IN
BODY LENGTH0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
40011-001Interchangeable
interchangeable cross-reference
interchangeable
10-3216-2Interchangeable
interchangeable cross-reference
interchangeable
MC14016ALInterchangeable
interchangeable cross-reference
interchangeable
CD4016MJAInterchangeable
interchangeable cross-reference
interchangeable
CD4016MJInterchangeable
interchangeable cross-reference
interchangeable
CD4016BMJ/883BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 121-0000-256?
121-0000-256 is a MICROCIRCUIT,DIGITAL.
What parts can replace 121-0000-256?
There are 23 known substitutes for 121-0000-256: 40011-001, 10-3216-2, MC14016AL and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121-0000-256?
121-0000-256 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-138-1653. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026