PartsTable
Technical Data Sheet
99-40-21 ✓ 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 RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include diameter: 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN, overall_length: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN, terminal_length: 0.980 INCHES MINIMUM AND 1.105 INCHES MAXIMUM IN, overall_diameter: 0.340 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, style_designator: HAT TYPE, 3 WIRE LEADS, circuit_resonance: SERIES RESONANCE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5955-00-004-2025, 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
99-40-21
NSN: 5955-00-004-2025
FSC: 5955
CAGE: 00136 — MICROSEMI CORP. - HIGH PERFORMANCE TIMING DBA VECTRON INTERNATIONAL- CANCELLED (USA)
SPECIFICATIONS
diameter0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
overall_length0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
terminal_length0.980 INCHES MINIMUM AND 1.105 INCHES MAXIMUM IN
overall_diameter0.340 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
style_designatorHAT TYPE, 3 WIRE LEADS
circuit_resonanceSERIES RESONANCE
terminal_diameter0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
drive_level_rating1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
mode_of_oscillationFIFTH OVERTONE
specified_frequency101.517854 MEGAHERTZ
operating_temp_range-24.0 TO 54.0 CELSIUS DEGC
shunt_capacitance_in_picofarads3.6 MINIMUM AND 5.4 MAXIMUM
NSN5955-00-004-2025
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,FIXED,COMPOSITION TITLE COMPONENT PN 99-40-21 MFR RESISTOR,FIXED,COMPOSI
KEY FEATURES
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT: -0.0015 TO 0.0015
TERMINAL LENGTH: 0.980 INCHES MINIMUM AND 1.105 INCHES MAXIMUM IN
TEST DATA DOCUMENT: 81349-MILC3098 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.).
EQUIVALENT RESISTANCE VALUE IN OHMS: 40.0 NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS: 0.200 INCHES NOMINAL IN
DRIVE LEVEL RATING: 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
STYLE DESIGNATOR: HAT TYPE, 3 WIRE LEADS
CIRCUIT RESONANCE: SERIES RESONANCE
TECHNICAL CHARACTERISTICS (FLIS)
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT-0.0015 TO 0.0015
TERMINAL LENGTH0.980 INCHES MINIMUM AND 1.105 INCHES MAXIMUM IN
TEST DATA DOCUMENT81349-MILC3098 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.).
EQUIVALENT RESISTANCE VALUE IN OHMS40.0 NOMINAL
CENTER TO CENTER DISTANCE BETWEEN TERMINALS0.200 INCHES NOMINAL IN
DRIVE LEVEL RATING1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM
STYLE DESIGNATORHAT TYPE, 3 WIRE LEADS
CIRCUIT RESONANCESERIES RESONANCE
OPERATING TEMP RANGE-24.0 TO 54.0 CELSIUS DEGC
TERMINAL DIAMETER0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
EB6811Interchangeable
interchangeable cross-reference
interchangeable
3R77-P681JInterchangeable
interchangeable cross-reference
interchangeable
802-681-05Interchangeable
interchangeable cross-reference
interchangeable
994021Interchangeable
interchangeable cross-reference
interchangeable
K309-21Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 99-40-21?
99-40-21 is a RESISTOR,FIXED,COMPOSITION.
What parts can replace 99-40-21?
There are 5 known substitutes for 99-40-21: EB6811, 3R77-P681J, 802-681-05 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 99-40-21?
99-40-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5955-00-004-2025. This indicates validated use in U.S. government and defense supply chains.
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