Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
P4
Possible components matching this marking.A marking is not a guaranteed identification by itself.
17possible components
VERY HIGHambiguity level
Filters17 candidates
Narrow the list using the package, manufacturer or component family printed on the board.
17 possible components
Results are ordered by the available marking evidence.
1 SM-1 XP42 evidence sources Unknown manufacturer (ORG) axial1 DIODE HIGH2 sources Gleichrichter, S | Si-DiManufacturer hint: Unknown manufacturer (ORG) 2 RT 1P434C2 evidence sources Mitsubishi smd2 TRANSISTOR HIGH2 sources SMD, Rb=4,7 ± 1,4kOhm, Rbe=22kOhm | Si-PManufacturer hint: Mitsubishi 3 KRA 767 U2 evidence sources KEC Semiconductor smd1 TRANSISTOR HIGH2 sources SMD, Dual, S, Rb=2,2kOhm, Rbe=2,2kOhm | Si-P+RManufacturer hint: KEC Semiconductor 4 KRA 567 U2 evidence sources KEC Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, Dual, S, Rb=2,2kOhm, Rbe=2,2kOhm | Si-P+RManufacturer hint: KEC Semiconductor 5 KRA 317 E2 evidence sources KEC Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, S, Rb=2,2kOhm, Rbe=2,2kOhm | Si-P+RManufacturer hint: KEC Semiconductor 6 HVM 132WK2 evidence sources Hitachi smd2 DIODE HIGH2 sources SMD,Dual, PIN-Diode Antennen-Schalter | Si-DiManufacturer hint: Hitachi 7 HVC 1342 evidence sources Hitachi dil1 DIODE HIGH2 sources SMD, PIN-Diode Antenn.-S. | Si-DiManufacturer hint: Hitachi 8 BB 1342 evidence sources Philips Semiconductors dil1 DIODE HIGH2 sources SMD, UHF variable capacitance diode | Si-DiManufacturer hint: Philips Semiconductors 9 MA 26P072 evidence sources Panasonic smd1 DIODE HIGH2 sources SMD,Silicon epitaxial planar type, 60V 100mA | Si-DiManufacturer hint: Panasonic 10 RT 1 P434M2 evidence sources Mitsubishi smd2 TRANSISTOR HIGH2 sources S, Rb=1±0,3kOhm Rbe=22kOhm Rbe/Rb=20..24 | Si-NManufacturer hint: Mitsubishi 11 PMBTA 42 DS2 evidence sources Philips Semiconductors smd1 TRANSISTOR HIGH2 sources SMD, 300V 100mA, 290mW | Si-NManufacturer hint: Philips Semiconductors 12 PMEG 3005ET2 evidence sources Philips Semiconductors smd2 DIODE HIGH2 sources SMD, Schottky barrier diode, 30V | Si-DiManufacturer hint: Philips Semiconductors 13 BFS 452 evidence sources Unknown manufacturer (FER) smd2 TRANSISTOR HIGH2 sources SMD, NF/HF | Si-PManufacturer hint: Unknown manufacturer (FER) 14 BFR 92R2 evidence sources Philips Semiconductors / Thomson Semiconducteurs / Siemens / Motorola / Valvo / AEG-Telefunken smd2 TRANSISTOR HIGH2 sources SMD, UHF-A | Si-NManufacturer hint: Philips Semiconductors / Thomson Semiconducteurs / Siemens / Motorola / Valvo / AEG-Telefunken 15 SST 2042 evidence sources Siliconix smd2 FET HIGH2 sources SMD | Si-NManufacturer hint: Siliconix 16 HVU 1342 evidence sources Hitachi dil1 DIODE HIGH2 sources SMD, PIN-Diode HF-S. | Si-DiManufacturer hint: Hitachi 17 2SD1161-P42 evidence sources Sanyo Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, Buzzer-Tr int. Emitter-R (100..160Ohm) | Si-NManufacturer hint: Sanyo Semiconductor
Safe identification
How to verify this result
Check the official datasheet for pinout, voltage, current and thermal ratings—not only the marking.
Do not treat a short marking, a low-confidence candidate or a family match as a drop-in replacement.