PNDS / Marking codes / P8

Identify an unknown SMD part: marking code “P8”

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 10 with manufacturer source-traceable

Candidate part numbers

Part number	Manufacturer	Package	Mapping source
BFG92A	PHI	SOT-143	Public marking directory
BZX84C22TS	DIODES	—	Public marking directory
BZX84C5V6	FSC	SOT-23 16dc - 3a Lge	Public marking directory
CMOZ33L	CSC CENTRAL SEMIC.CORP.	SOD-523	Public marking directory
MM5Z11V	FSC	SOD-523	Public marking directory
R3111Q481A	RICOH ^*	SC-82AB	Public marking directory
R3116Q451A	RICOH ^*	SC-82AB	Public marking directory
TC1186-2.85VCT713	MIC ^*	SOT-23-5	Public marking directory
TC54VN4802ECB	MIC ^*	SOT-23	Public marking directory
TC54VN4802MB	MIC ^*	SOT-89	Public marking directory
BZX84-C22T	—	SOT-523	Public marking directory
BZX84-C22TS	—	SOT-363	Public marking directory
ELM7628HCB	—	SOT-23 16vdc VD7 3d Elm	Public marking directory
KRA121S	—	SOT-23	Public marking directory
KRA321	—	SOT-323	Public marking directory
KRA321E	—	SOT-490	Public marking directory
KRA321V	—	—	Public marking directory
R1100D381C	—	—	Public marking directory
R1225N122B	—	SOT-23-6W 33so	Public marking directory
RP104Q221C	—	SC-82AB	Public marking directory
XC61CN4802M	—	SOT-23	Public marking directory
XC61CN4802N	—	SOT-143R	Public marking directory
XC61CN4802P	—	SOT-89	Public marking directory
XC6218P09N	—	SSOT-24	Public marking directory
XC6224B16BNR	—	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 “P”

PK7 PR7 P0 P1 P2 P3 P4 P5 P6 P7

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.