PNDS / Marking codes / KK

Identify an unknown SMD part: marking code “KK”

Packages rarely print the full part number. The marking below is shared by several part numbers — use the package, pin count and the manufacturer family together to narrow it down, then confirm against the datasheet.

24 candidates 12 with manufacturer source-traceable

Candidate part numbers

Part number	Manufacturer	Package	Mapping source
1SMB6.5A	CSC CENTRAL SEMIC.CORP.	—	Public marking directory
BU4926F	ROHM ^*	SOP-4	Public marking directory
BU4926FWE	ROHM ^*	VSOF-5	Public marking directory
BU4926G	ROHM ^*	SSOP-5	Public marking directory
DDZ4V3B	DIODES ^*	SOD-123	Public marking directory
DZ23C13	DIODES	SOD-23 16dg - 3a Lge	Public marking directory
P6SMB8.2A	ON	DO-214AA	Public marking directory
P6SMBJ6.5A	LITTLE ^*	DO-214AA	Public marking directory
R1114Q291A	RICOH ^*	SOT-143R	Public marking directory
R5426D110EA	RICOH ^*	—	Public marking directory
R5426N110EA	RICOH ^*	SOT-23-6	Public marking directory
RD74LVC2G17WPE	RENESAS	—	Public marking directory
2SB805-K	—	SOT-89	Public marking directory
A102WFT-2.0	—	SOT-23 16cg VR1 3b Adt	Public marking directory
CD214B-T6.5A	—	DO-214AA	Public marking directory
ELM7629HDB	—	SOT-23 16vdc VD7 3d Elm	Public marking directory
PT7M6224CLC4	—	SC-70-4	Public marking directory
PT7M6224CLC4E	—	SC-70-4	Public marking directory
RT9167A-34CBR	—	SOT-23-5	Public marking directory
TV06B6V5J	—	DO-214AA	Public marking directory
XC6120C17N	—	SSOT-24	Public marking directory
XC6127C30CNR	—	SSOT-24	Public marking directory
XC6127N30HNR	—	SSOT-24	Public marking directory
XC6223E271NR-G	—	SSOT-24	Public marking directory

How we narrow this down

Package first — SOT-23 vs SOD-123 vs SC-59 eliminates most candidates immediately.
Pin count and body size — a 3-pin SOT-23 LDO cannot be a 6-pin dual transistor.
Marking style — laser-marked parts are usually newer production; ink marking often indicates older or second-source vendors.
Circuits around it — a part sitting on a rail with an inductor is a regulator, not a diode.
Datasheet check — every credible candidate lists its marking scheme in the “marking information” section.

FAQ

Same code, several parts — which one do I actually have? Compare package + pin count + surrounding circuit; if it still fits two parts, request a sample verification before production.
Can I substitute between the candidates? No — the same marking may sit on electrically different parts. Always match the electrical spec sheet, not just the marking.
Where do these mappings come from? Public SMD marking directories and historical stock tables; each row keeps its source so you can trace it.

Other codes starting with “K”

K1 K2 K4 K5 KB KC KD KE KEC KM

Still not sure what the part is?

Send the code, package and a photo through the BOM hub — our engineers cross-check it against datasheets and sourcing records.

How these mappings are compiled: public SMD marking directories plus our own stock records. Each row keeps its original reference internally, so any mapping can be traced on request. ^* Manufacturer derived from the part-number family (some directory entries carry no manufacturer) — treat it as a lead, not a datasheet fact. Markings are indicative only — confirm with the physical batch marking and the original datasheet before ordering.