PartsTable
Technical Data Sheet
28021 ✓ Verified by PartsTable
KeySonic · 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 KSK-6001UELX is a compact gaming keyboard in trendy design with blue backlight. It has a Reliable LED technology for an effective illumination of the lettering and 20 keys with Anti-Ghosting function for simultaneous actions - they allow to hold down more than 4 keys and add some realism to the game.<br><br>This keyboard is perfect for gamers, LAN parties, DJs, presentation rooms as well as all poorly lit places.<br><br><b>Light in the Darkness</b><br><br>The KSK-6001 UELX is a compact gaming keyboard with blue backlight.<br>This can easily switched off using a button. The special feature of this keyboard are the anti-ghosting keys, which enable the operation of more than four keys simultaneously, without signals arriving distorted or wrong on the PC.<br><br><b>Flat keys</b><br><br>The keys are flatter than traditional keyboards, and so the keystroke is quieter and more comfortable.

With up to 5 million keystrokes expected, it is also a true (survival) artist.<br>Two folding feet c This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-137-8709, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO MRO_GENERAL 28021
NSN: 5910-00-137-8709
FSC: 5910
CAGE: 23386 — THALES DEFENSE & SECURITY INC DBA THALES COMMUNICATIONS INC (USA)
SPECIFICATIONS
depth0.380 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialSTEEL COMP 1117
body_styleROTARY
bore_shapeSTRAIGHT
drive_typeDRILLED FACE
body_height0.500 INCHES MAXIMUM IN
body_length0.390 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
design_typeREUSABLE
thread_size4.250-12
thread_class2A A
body_diameter0.250 INCHES NOMINAL IN
NSN5910-00-137-8709
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: KeySonic CAPACITOR,VARIABLE,CERAMIC DIELE TITLE COMPONENT PN 28021 MFR KeySonic CAPACITOR,VARIABLE,CER
KEY FEATURES
CAPACITANCE RANGE IN PICOFARADS: +7.0 TO 35.0 SINGLE SECTION
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY: 1 SLOTTED SCREW
TEMP COEFFICIENT OF CAPACITANCE IN PPM PER DEG CELSIUS: 1500.0 SINGLE SECTION
NONDERATED VOLTAGE RATING AND TYPE: 160.0 DC CONTINUOUS SINGLE SECTION
BODY STYLE: ROTARY
TERMINAL TYPE AND QUANTITY: 2 PRINTED CIRCUIT
INCLOSURE TYPE: ENCAPSULATED
BODY HEIGHT: 0.260 INCHES NOMINAL IN
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)
CAPACITANCE RANGE IN PICOFARADS+7.0 TO 35.0 SINGLE SECTION
ADJUSTMENT DEVICE DRIVE TYPE AND QUANTITY1 SLOTTED SCREW
TEMP COEFFICIENT OF CAPACITANCE IN PPM PER DEG CELSIUS1500.0 SINGLE SECTION
NONDERATED VOLTAGE RATING AND TYPE160.0 DC CONTINUOUS SINGLE SECTION
BODY STYLEROTARY
TERMINAL TYPE AND QUANTITY2 PRINTED CIRCUIT
INCLOSURE TYPEENCAPSULATED
BODY HEIGHT0.260 INCHES NOMINAL IN
BODY DIAMETER0.276 INCHES NOMINAL IN
MOUNTING FACILITY TYPE AND QUANTITY2 TERMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
49417HAInterchangeable
interchangeable cross-reference
interchangeable
5298444Interchangeable
interchangeable cross-reference
interchangeable
C4344-220-1Interchangeable
interchangeable cross-reference
interchangeable
10122493Interchangeable
interchangeable cross-reference
interchangeable
A-899Interchangeable
interchangeable cross-reference
interchangeable
28021Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 28021?
28021 is a CAPACITOR,VARIABLE,CERAMIC DIELE manufactured by KeySonic. It is classified as a MRO (MRO_GENERAL).
What parts can replace 28021?
There are 10 known substitutes for 28021: 49417HA, 5298444, C4344-220-1 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 28021?
28021 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5910-00-137-8709. This indicates validated use in U.S. government and defense supply chains.
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