PNDS / Marking codes / H0

Identify an unknown SMD part: marking code “H0”

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 9 with manufacturer source-traceable

Candidate part numbers

Part number	Manufacturer	Package	Mapping source
2SC4252	TOS	SC-70	Public marking directory
2SC4255	TOS	SOT-23	Public marking directory
BZX84C75	NEXPERIA	SOT-23 16dc - 3a Lge	Public marking directory
CMOZ15V	CSC CENTRAL SEMIC.CORP. ^*	SOD-523	Public marking directory
R3113D401C	RICOH ^*	—	Public marking directory
R3114Q271C	RICOH ^*	SC-82AB	Public marking directory
RN2901FS	TOS	—	Public marking directory
TC54VC6002ECB	MIC ^*	SOT-23	Public marking directory
TC54VC6002MB	MIC ^*	SOT-89	Public marking directory
AP130-27R	—	SOT-23	Public marking directory
AP130-27YR	—	SOT-89	Public marking directory
BZX585-C15	—	SOD-523	Public marking directory
ELM7620HAB	—	SOT-23 16vdc VD7 3d Elm	Public marking directory
R1111N401B	—	SOT-23-5	Public marking directory
R1131D201A	—	—	Public marking directory
R1140Q401D	—	SOT-143R	Public marking directory
R1160D301B	—	—	Public marking directory
R3130N30EA	—	SOT-23	Public marking directory
RP103Q281B	—	SC-82AB	Public marking directory
RT9818C-21CX	—	SOT-89	Public marking directory
XC61CC6002M	—	SOT-23	Public marking directory
XC61CC6002N	—	SOT-143R	Public marking directory
XC61CC6002P	—	SOT-89	Public marking directory
XC6221B31BN	—	SSOT-24 26vn VR4 5a Tor	Public marking directory
XC6221B31BNR	—	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 “H”

H1 H2 H3 H4 H5 HA HC HD HE HF

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.