Compare the candidate package with the outline, pin count and polarity mark on the actual board.
SMD Marking
Z4
Possible components matching this marking.A marking is not a guaranteed identification by itself.
8possible components
HIGHambiguity level
Filters8 candidates
Narrow the list using the package, manufacturer or component family printed on the board.
8 possible components
Results are ordered by the available marking evidence.
1 SM-1 XZ042 evidence sources Unknown manufacturer (ORG) axial1 DIODE HIGH2 sources controlled avalanche | Si-DiManufacturer hint: Unknown manufacturer (ORG) 2 IMZ 42 evidence sources ROHM Semiconductor smd1 TRANSISTOR HIGH2 sources SMD, 2SA1036K + 2SC2411K | Si-N+PManufacturer hint: ROHM Semiconductor 3 2SK 10792 evidence sources Toshiba smd1 FET HIGH2 sources SMD | MOS N-enhManufacturer hint: Toshiba 4 PDZ3.6B2 evidence sources Philips Semiconductors dil1 DIODE HIGH2 sources SMD, Voltage regulator diode, 3,6V, Tolerance ±2% | Z-DiManufacturer hint: Philips Semiconductors 5 BZX 88 /C 6V22 evidence sources Unknown manufacturer (FER) smd2 DIODE HIGH2 sources Z, 5%, SMD | Si-DiManufacturer hint: Unknown manufacturer (FER) 6 BZX 84 / C 6V22 evidence sources Siemens smd2 DIODE HIGH2 sources Stabi, SMD | Si-DiManufacturer hint: Siemens 7 BZV 49 /C 6V22 evidence sources Siemens smd1 DIODE HIGH2 sources Stabi, 5%, SMD | Si-DiManufacturer hint: Siemens 8 BZA 820A2 evidence sources Philips Semiconductors smd2 DIODE HIGH2 sources SMD, 4xESD transient voltage suppressor, 20V | Z-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.