Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
N4
Possible components matching this marking.A marking is not a guaranteed identification by itself.
19possible components
VERY HIGHambiguity level
Filters19 candidates
Narrow the list using the package, manufacturer or component family printed on the board.
19 possible components
Results are ordered by the available marking evidence.
1 DDTC 113 TLP2 evidence sources Unknown manufacturer (DII) smd3 TRANSISTOR HIGH2 sources SMD, SMALL SIGNAL TRANSISTOR, 50V 100mA 250mW | Si-N+RManufacturer hint: Unknown manufacturer (DII) 2 SM-1 XN042 evidence sources Unknown manufacturer (ORG) axial1 DIODE HIGH2 sources Gleichrichter, universal | Si-DiManufacturer hint: Unknown manufacturer (ORG) 3 RT 1 N434M2 evidence sources Mitsubishi smd2 TRANSISTOR HIGH2 sources S, Rb=1±0,3kOhm Rbe=22kOhm Rbe/Rb=20..24 | Si-NManufacturer hint: Mitsubishi 4 RT 1 N434C2 evidence sources Mitsubishi smd2 TRANSISTOR HIGH2 sources SMD, Rb=4,7 ± 1,4kOhm, Rbe=22kOhm | Si-NManufacturer hint: Mitsubishi 5 KRC 867 U2 evidence sources KEC Semiconductor smd1 TRANSISTOR HIGH2 sources SMD, Dual, S, Rb=2,2kOhm, Rbe=2,2kOhm | Si-N+RManufacturer hint: KEC Semiconductor 6 KRC 667 U2 evidence sources KEC Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, Dual, S, Rb=2,2kOhm, Rbe=2,2kOhm | Si-N+RManufacturer hint: KEC Semiconductor 7 KRC 417 E2 evidence sources KEC Semiconductor smd2 TRANSISTOR HIGH2 sources SMD, S, Rb=2,2kOhm, Rbe=2,2kOhm | Si-N+RManufacturer hint: KEC Semiconductor 8 BFG 520W/X2 evidence sources Philips Semiconductors smd1 TRANSISTOR HIGH2 sources SMD, 9GHz wideband transistor, 15V 70mA, 500mW | Si-NManufacturer hint: Philips Semiconductors 9 BFR 53R2 evidence sources Philips Semiconductors / Valvo / Thomson Semiconducteurs smd2 TRANSISTOR HIGH2 sources SMD, UHF-A | Si-NManufacturer hint: Philips Semiconductors / Valvo / Thomson Semiconducteurs 10 PESD15VS1UB2 evidence sources Philips Semiconductors smd1 DIODE HIGH2 sources SMD, Unidirectional ESD protection diode, 15V | Z-DiManufacturer hint: Philips Semiconductors 11 MMSZ 52642 evidence sources Vishay smd1 DIODE HIGH2 sources SMD, Silicon Planar Zener Diode | Z-DiManufacturer hint: Vishay 12 BFS 5402 evidence sources Philips Semiconductors smd2 TRANSISTOR HIGH2 sources SMD, 9GHz-Wideband Transistor, 15V 120mA, 500mW | Si-NManufacturer hint: Philips Semiconductors 13 BFQ 5402 evidence sources Philips Semiconductors smd1 TRANSISTOR HIGH2 sources SMD, wideband transistor, 15V 120mA, 1.2W | Si-NManufacturer hint: Philips Semiconductors 14 BC 817 DPN2 evidence sources Philips Semiconductors smd1 TRANSISTOR HIGH2 sources SMD, Complement. Pair Amplifier, 45V 0.5A 0.6W | Si-N/PManufacturer hint: Philips Semiconductors 15 F 1 N42 evidence sources Unknown manufacturer (ORG) smd1 DIODE HIGH2 sources SMD, Gleichrichter | Si-DiManufacturer hint: Unknown manufacturer (ORG) 16 F 1 N42 evidence sources Unknown manufacturer (ORG) dil1 DIODE HIGH2 sources SMD, Gleichrichter | Si-DiManufacturer hint: Unknown manufacturer (ORG) 17 BZX384-B472 evidence sources Philips Semiconductors dil1 DIODE HIGH2 sources SMD, Voltage regulator diode, 47V, Tolerance ±2% | Z-DiManufacturer hint: Philips Semiconductors 18 2SC1653-N42 evidence sources NEC (Nippon Electric Company) smd2 TRANSISTOR HIGH2 sources SMD, S/Nix | Si-NManufacturer hint: NEC (Nippon Electric Company) 19 1PS 66SB632 evidence sources Philips Semiconductors - DIODE HIGH2 sources SMD, 3xSchottky barrier diode, 5V | Si-DiManufacturer hint: Philips Semiconductors
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.