PartsTable
Technical Data Sheet
SM-B-781408 ✓ Verified by PartsTable
· 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

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include body_style: PISTON, body_length: 0.297 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, overall_length: 0.547 INCHES NOMINAL IN, overall_diameter: 0.281 INCHES NOMINAL IN, tuning_characteristic: STRAIGHT LINE CAPACITY SINGLE SECTION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-01-019-3858, 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 SM-B-781408
NSN: 5910-01-019-3858
FSC: 5910
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
body_stylePISTON
body_length0.297 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
overall_length0.547 INCHES NOMINAL IN
overall_diameter0.281 INCHES NOMINAL IN
tuning_characteristicSTRAIGHT LINE CAPACITY SINGLE SECTION
nonderated_operating_temp-65.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
terminal_type_and_quantity2 PRINTED CIRCUIT
capacitance_range_in_picofarads+1.0 TO 14.0 SINGLE SECTION
quality_factor_at_25_deg_celsius1500.0
nonderated_voltage_rating_and_type250.0 DC CONTINUOUS SINGLE SECTION
mounting_facility_type_and_quantity2 TERMINAL
NSN5910-01-019-3858
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN SM-B-781408 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
MOUNTING FACILITY TYPE AND QUANTITY: 2 TERMINAL
TUNING CHARACTERISTIC: STRAIGHT LINE CAPACITY SINGLE SECTION
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY: 1 SLOTTED SCREW
TERMINAL TYPE AND QUANTITY: 2 PRINTED CIRCUIT
INCLOSURE TYPE: HERMETICALLY SEALED
TOLERANCE OF TEMP COEFFICIENT IN PPM PER DEG CELSIUS: -50.0 TO 50.0 SINGLE SECTION
CAPACITANCE RANGE IN PICOFARADS: +1.0 TO 14.0 SINGLE SECTION
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.547 INCHES NOMINAL IN
MOUNTING FACILITY TYPE AND QUANTITY2 TERMINAL
TUNING CHARACTERISTICSTRAIGHT LINE CAPACITY SINGLE SECTION
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY1 SLOTTED SCREW
TERMINAL TYPE AND QUANTITY2 PRINTED CIRCUIT
INCLOSURE TYPEHERMETICALLY SEALED
TOLERANCE OF TEMP COEFFICIENT IN PPM PER DEG CELSIUS-50.0 TO 50.0 SINGLE SECTION
CAPACITANCE RANGE IN PICOFARADS+1.0 TO 14.0 SINGLE SECTION
NONDERATED OPERATING TEMP-65.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
QUALITY FACTOR AT 25 DEG CELSIUS1500.0
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
72-503Interchangeable
interchangeable cross-reference
interchangeable
71-688Interchangeable
interchangeable cross-reference
interchangeable
BA53Interchangeable
interchangeable cross-reference
interchangeable
MILB18Interchangeable
interchangeable cross-reference
interchangeable
8051Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-781408?
SM-B-781408 is a CAPACITOR,VARIABLE,AIR DIELECTRI. It is classified as a MRO (MRO_GENERAL).
What parts can replace SM-B-781408?
There are 29 known substitutes for SM-B-781408: 72-503, 71-688, BA53 and 26 more. Substitute compatibility should be verified for your specific system.
Is SM-B-781408 still available?
SM-B-781408 is currently cancelled.
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