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Technical Data Sheet
PartsTable / MRO / 257-78
257-78 ✓ Verified by PartsTable
Clementoni · MRO · MRO_GENERAL
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,DIGITAL is a Clementoni industrial component. Key specifications include material: ALUMINUM, body_width: 0.245 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN, body_height: 0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN, body_length: 0.750 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN, temp_rating: 60.0 CELSIUS DEGC, conductor_form: STRANDED ALL CONDUCTORS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-00-372-0010, 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
MRO→ MRO_GENERAL→ 257-78
NSN: 5962-00-372-0010
FSC: 5962
CAGE: 06811 — EMCORE CORPORATION DIV CONCORD DIVISION (USA)
SPECIFICATIONS
materialALUMINUM
body_width0.245 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN
body_height0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
body_length0.750 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
temp_rating60.0 CELSIUS DEGC
conductor_formSTRANDED ALL CONDUCTORS
overall_length51.000 FEET FT
voltage_rating600.0 AC MAXIMUM RATED WORKING VOLTAGE ALL CONDUCTORS
special_features57MM (2.25 IN.) FLANGE; STERILE MM
style_designatorJACK AND EXTERNAL CONNECTOR
termination_typeCONNECTOR EXTERNAL STRAIGHT SECOND END ALL CONDUCTORS
features_providedMONOLITHIC AND HERMETICALLY SEALED AND NEGATIVE OUTPUTS AND HIGH SPEED
NSN5962-00-372-0010
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Clementoni MICROCIRCUIT,DIGITAL TITLE COMPONENT PN 257-78 MFR Clementoni MICROCIRCUIT,DIGITAL
KEY FEATURES
•
OUTPUT LOGIC FORM: EMITTER-COUPLED LOGIC
•
OPERATING TEMP RANGE: -30.0 TO 85.0 CELSIUS DEGC
•
DESIGN FUNCTION AND QUANTITY: 4 GATE, NAND-NOR
•
VOLTAGE RATING AND TYPE PER CHARACTERISTIC: 8.0 VOLTS MAXIMUM POWER SOURCE
•
MAXIMUM POWER DISSIPATION RATING: 240.0 MILLIWATTS
•
FEATURES PROVIDED: MONOLITHIC AND HERMETICALLY SEALED AND NEGATIVE OUTPUTS AND HIGH SPEED
•
INCLOSURE MATERIAL: CERAMIC AND GLASS
•
INPUT CIRCUIT PATTERN: QUAD 2 INPUT
TECHNICAL CHARACTERISTICS (FLIS)
OUTPUT LOGIC FORMEMITTER-COUPLED LOGIC
OPERATING TEMP RANGE-30.0 TO 85.0 CELSIUS DEGC
DESIGN FUNCTION AND QUANTITY4 GATE, NAND-NOR
VOLTAGE RATING AND TYPE PER CHARACTERISTIC8.0 VOLTS MAXIMUM POWER SOURCE
MAXIMUM POWER DISSIPATION RATING240.0 MILLIWATTS
FEATURES PROVIDEDMONOLITHIC AND HERMETICALLY SEALED AND NEGATIVE OUTPUTS AND HIGH SPEED
INCLOSURE MATERIALCERAMIC AND GLASS
INPUT CIRCUIT PATTERNQUAD 2 INPUT
BODY LENGTH0.750 INCHES MINIMUM AND 0.780 INCHES MAXIMUM IN
BODY HEIGHT0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
33-62634Interchangeable
interchangeable cross-reference
interchangeable
A2242-511Interchangeable
interchangeable cross-reference
interchangeable
62634HDXInterchangeable
interchangeable cross-reference
interchangeable
X8651-549Interchangeable
interchangeable cross-reference
interchangeable
25778Interchangeable
interchangeable cross-reference
interchangeable
E2002-549Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 257-78?
257-78 is a MICROCIRCUIT,DIGITAL manufactured by Clementoni. It is classified as a MRO (MRO_GENERAL).
What parts can replace 257-78?
There are 19 known substitutes for 257-78: 33-62634, A2242-511, 62634HDX and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 257-78?
257-78 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-00-372-0010. 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.
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Last verified: July 2026