component
ZM4733A
Public Made by Adomby adom
HXY MOSFET Zener Diodes, LL-41. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownZM4733A
HXY MOSFET · Zener Diodes · LL-41
ZM4733A from HXY MOSFET, in a LL-41. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | K | passive | Cathode: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | LL-41 |
| Category | Diodes |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Zener voltage, minimum | VZ | 4.59 | V | at IZT (test current 49 mA) | 2 | ||
| Zener voltage, maximum | VZ | 5.61 | V | at IZT (test current 49 mA) | 2 | ||
| Zener voltage tolerance | -10 | 10 | % | Standard Zener voltage tolerance per datasheet text; suffix A not decoded | 1 | ||
| Dynamic resistance, maximum | ZZT | 7 | Ω | at IZT = 49 mA, AC test per footnote 1 | 2 | ||
| Dynamic resistance at knee, maximum | ZZK | 550 | Ω | at IZK = 1 mA | 2 | ||
| Reverse current, maximum | IR | 10 | µA | at VR = 1 V | 2 | ||
| Maximum surge current | IZSM | 890 | mA | 1/120 s half-sine or square surge superimposed on IZT (footnote 4) | 2 | ||
| Maximum regulator current | IZM | 178 | mA | Valid provided electrodes are kept at ambient temperature (footnote 2) | 2 | ||
| Power dissipation | PD | 1 | W | Valid provided electrodes are kept at ambient temperature (footnote 1) | 1 | ||
| Operating junction temperature | Tj | 175 | ℃ | 1 | |||
| Storage temperature range | Tstg | -65 | 175 | ℃ | 1 | ||
| Thermal resistance, junction to ambient | RθJA | 170 | ℃/W | Valid provided electrodes are kept at ambient temperature (footnote 1) | 1 | ||
| Nominal Zener voltage | VZnom | 5.1 | V | 2 |
CAD (KiCad official)
- Symbol:
ZM4733A - Footprint:
Diode_SMD:D_MELF - 3D model: LL-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HXY MOSFET datasheet (4 pp, sha256
c2b2d9b96c497859, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).