PNDS / Marking codes / C7

Identify an unknown SMD part: marking code “C7”

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.

25 candidates 14 with manufacturer source-traceable

Candidate part numbers

Part number	Manufacturer	Package	Mapping source
BZX585-B4V3	NXP	SOD-523	Public marking directory
BZX884-B30	NXP	SOD-882	Public marking directory
HSMS-2827	AGILENT	SOT-143	Public marking directory
ILC5062IC27X	FSC ^*	SC-70	Public marking directory
ILC5062M27X	FSC ^*	SOT-23	Public marking directory
MMBA811C7	MOT	SOT-23	Public marking directory
R3111N272A	RICOH ^*	SOT-23	Public marking directory
R3113D371A	RICOH ^*	—	Public marking directory
R3114Q341A	RICOH ^*	SC-82AB	Public marking directory
RN1908AFS	TOS ^*	—	Public marking directory
RT9161-45CX	RICHTEK	SOT-89	Public marking directory
TC4SU11F	TOS	SOT-353	Public marking directory
TC54VC2702ECB	MIC ^*	SOT-23	Public marking directory
TC54VC2702MB	MIC ^*	SOT-89	Public marking directory
2SA811-7	—	SOT-23	Public marking directory
2SC5231-7	—	SMCP	Public marking directory
AP130-48TW	—	—	Public marking directory
AP130-48W	—	SOT-23	Public marking directory
AP130-48Y	—	SOT-89	Public marking directory
ELM9727NAB	—	SOT-89	Public marking directory
ELM9847AB	—	SOT-89	Public marking directory
KN4L4M	—	SC-75	Public marking directory
R1111N471A	—	SOT-23-5	Public marking directory
R1140Q371B	—	SOT-143R	Public marking directory
R1160D271A	—	—	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 “C”

C0 C1 C2 C3 C4 C5 C6 C8 C9 CA

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.