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33YDH — DELL Latitude 56Wh Li-ion Battery Type 33YDH 15.2V 4 Cells

✓ Government record, cited
DELL · BATTERY · LITHIUM
PRODUCT OVERVIEW

33YDH: DELL Latitude 56Wh Li-ion Battery Type 33YDH 15.2V 4 Cells.

The Dell 33YDH is a Battery-Backed Write Cache pack, designed for Dell PERC controllers in PowerEdge 12th and 13th generation servers. It provides backup power to the BBWC module during unexpected power loss, ensuring cached write data is safely committed to flash memory. This is a high-volume replacement part in TPM market as PowerEdge 12th and 13th generation servers remain widely deployed.

This part is cataloged in the U.S. Government catalog under NSN 6140-01-696-5216, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
BATTERY→ LITHIUM→ 33YDH
NSN: 6140-01-696-5216
FSC: 6140 — Batteries, Rechargeable
CAGE: 3DMD3 — DELL MARKETING L.P. (USA)
SPECIFICATIONS
Ports4
Speed1GbE
ChipsetBroadcom
Form FactorDaughter card
NSN6140-01-696-5216
COMPONENT DIAGRAM
CAP 72V + - CAP 72V BRACKET TO CTRL CABLE: — ~76 mm CACHE BACKUP | Supercapacitor | Cable: — Connects to RAID controller | | Controller: See controller spec SCHEMATIC: + - 2S2P SUPERCAP PACK TITLE CACHE BATT PN 33YDH MFR DELL DELL Latitude 56Wh Li-ion Battery Type 3
KEY FEATURES
•
Battery-Backed Write Cache Module
•
Rechargeable Battery Technology
Provides cache backup power for 48+ hours after power loss
•
Hot-Plug Capable
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
VOLTAGE IN VOLTS15.2
BATTERY ELECTROLYTELITHIUM IODINE
CELL QUANTITY4
CASE DESIGN TYPESEALED
SPECIAL FEATURESCOMPATIBLE WITH DELL INSPIRON, G-SERIES, VOSTRO AND LATITUDE LAPTOPS
PART NAME ASSIGNED BY CONTROLLING AGENCYLAPTOP BATTERY
AMPERE HOUR CAPACITY3.5
OTHER ITEMS IN FSC 6140 — Batteries, Rechargeable
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6140-00-000-5725 6140-00-001-1544 6140-00-001-4187 6140-00-001-5391 6140-00-001-5392 6140-00-003-0528 6140-00-003-5310 6140-00-003-7222
SUBSTITUTES & CROSS-REFERENCES 1
W7NKDSubstituteBROKER-VERIFIED
DELL Latitude 56Wh Li-ion Battery Type 33YDH 15.2V 4 Cells
substitute
LIFECYCLE
NSN statusActive· U.S. Government catalog
DG Class 9 — LithiumRestricted Air FreightNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 33YDH?
33YDH is a DELL Latitude 56Wh Li-ion Battery Type 33YDH 15.2V 4 Cells manufactured by DELL. It is classified as a BATTERY (LITHIUM).
What parts can replace 33YDH?
There is 1 known substitute for 33YDH: W7NKD. Substitute compatibility should be verified for your specific system.
What is the NSN for 33YDH?
33YDH is cataloged in the U.S. Government catalog under NSN 6140-01-696-5216. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.