PNDS / Marking codes / V4

Identify an unknown SMD part: marking code “V4”

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.

18 candidates 8 with manufacturer source-traceable

Candidate part numbers

Part number	Manufacturer	Package	Mapping source
1SV228	TOS	SOT-346	Public marking directory
BD45282G	ROHM ^*	SSOP-5	Public marking directory
BFT25R	MUL	SOT-23	Public marking directory
HBAT-540F	AGILENT	SOT-323	Public marking directory
MC74VHC1G32DF	ON ^*	SOT-353	Public marking directory
MC74VHC1G32DT	ON ^*	SOT-23-5	Public marking directory
R3111Q241C	RICOH ^*	SC-82AB	Public marking directory
TC74A4-3.3VCT	TOS ^*	SOT-23-5	Public marking directory
2SD596-4	—	SOT-23	Public marking directory
2SD596A-4	—	SOT-23	Public marking directory
2SD780-4	—	SOT-23	Public marking directory
2SK1332-4	—	—	Public marking directory
2SK303-4	—	SOT-23	Public marking directory
DZ23-C3V6	—	SOT-23	Public marking directory
ELM7624LBB	—	SOT-23 16vdc VD7 3d Elm	Public marking directory
FES2F	—	DO-214AA	Public marking directory
MMSZ8V2	—	SOD-123	Public marking directory
XC6223F14BNR-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 “V”

V1 V2 VS V3 V5 VK VL VP VR VT

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.